Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Kernel-based Virtual Machine driver for Linux |
| 3 | * |
| 4 | * AMD SVM support |
| 5 | * |
| 6 | * Copyright (C) 2006 Qumranet, Inc. |
| 7 | * |
| 8 | * Authors: |
| 9 | * Yaniv Kamay <yaniv@qumranet.com> |
| 10 | * Avi Kivity <avi@qumranet.com> |
| 11 | * |
| 12 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 13 | * the COPYING file in the top-level directory. |
| 14 | * |
| 15 | */ |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 16 | #include <linux/kvm_host.h> |
| 17 | |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 18 | #include "irq.h" |
Zhang Xiantao | 1d737c8 | 2007-12-14 09:35:10 +0800 | [diff] [blame] | 19 | #include "mmu.h" |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 20 | #include "kvm_cache_regs.h" |
Gleb Natapov | fe4c7b1 | 2009-03-23 11:23:18 +0200 | [diff] [blame] | 21 | #include "x86.h" |
Avi Kivity | e495606 | 2007-06-28 14:15:57 -0400 | [diff] [blame] | 22 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 23 | #include <linux/module.h> |
Ahmed S. Darwish | 9d8f549 | 2007-02-19 14:37:46 +0200 | [diff] [blame] | 24 | #include <linux/kernel.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 25 | #include <linux/vmalloc.h> |
| 26 | #include <linux/highmem.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 27 | #include <linux/sched.h> |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 28 | #include <linux/ftrace_event.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 29 | |
Avi Kivity | e495606 | 2007-06-28 14:15:57 -0400 | [diff] [blame] | 30 | #include <asm/desc.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 31 | |
Eduardo Habkost | 63d1142 | 2008-11-17 19:03:20 -0200 | [diff] [blame] | 32 | #include <asm/virtext.h> |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 33 | #include "trace.h" |
Eduardo Habkost | 63d1142 | 2008-11-17 19:03:20 -0200 | [diff] [blame] | 34 | |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 35 | #define __ex(x) __kvm_handle_fault_on_reboot(x) |
| 36 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 37 | MODULE_AUTHOR("Qumranet"); |
| 38 | MODULE_LICENSE("GPL"); |
| 39 | |
| 40 | #define IOPM_ALLOC_ORDER 2 |
| 41 | #define MSRPM_ALLOC_ORDER 1 |
| 42 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 43 | #define SEG_TYPE_LDT 2 |
| 44 | #define SEG_TYPE_BUSY_TSS16 3 |
| 45 | |
Joerg Roedel | 80b7706 | 2007-03-30 17:02:14 +0300 | [diff] [blame] | 46 | #define SVM_FEATURE_NPT (1 << 0) |
| 47 | #define SVM_FEATURE_LBRV (1 << 1) |
Amit Shah | 94c935a1 | 2008-08-18 13:11:46 +0300 | [diff] [blame] | 48 | #define SVM_FEATURE_SVML (1 << 2) |
Joerg Roedel | 80b7706 | 2007-03-30 17:02:14 +0300 | [diff] [blame] | 49 | |
Joerg Roedel | 24e09cb | 2008-02-13 18:58:47 +0100 | [diff] [blame] | 50 | #define DEBUGCTL_RESERVED_BITS (~(0x3fULL)) |
| 51 | |
Alexander Graf | c072542 | 2008-11-25 20:17:03 +0100 | [diff] [blame] | 52 | /* Turn on to get debugging output*/ |
| 53 | /* #define NESTED_DEBUG */ |
| 54 | |
| 55 | #ifdef NESTED_DEBUG |
| 56 | #define nsvm_printk(fmt, args...) printk(KERN_INFO fmt, ## args) |
| 57 | #else |
| 58 | #define nsvm_printk(fmt, args...) do {} while(0) |
| 59 | #endif |
| 60 | |
Avi Kivity | 6c8166a | 2009-05-31 18:15:37 +0300 | [diff] [blame] | 61 | static const u32 host_save_user_msrs[] = { |
| 62 | #ifdef CONFIG_X86_64 |
| 63 | MSR_STAR, MSR_LSTAR, MSR_CSTAR, MSR_SYSCALL_MASK, MSR_KERNEL_GS_BASE, |
| 64 | MSR_FS_BASE, |
| 65 | #endif |
| 66 | MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP, |
| 67 | }; |
| 68 | |
| 69 | #define NR_HOST_SAVE_USER_MSRS ARRAY_SIZE(host_save_user_msrs) |
| 70 | |
| 71 | struct kvm_vcpu; |
| 72 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 73 | struct nested_state { |
| 74 | struct vmcb *hsave; |
| 75 | u64 hsave_msr; |
| 76 | u64 vmcb; |
| 77 | |
| 78 | /* These are the merged vectors */ |
| 79 | u32 *msrpm; |
| 80 | |
| 81 | /* gpa pointers to the real vectors */ |
| 82 | u64 vmcb_msrpm; |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 83 | |
| 84 | /* cache for intercepts of the guest */ |
| 85 | u16 intercept_cr_read; |
| 86 | u16 intercept_cr_write; |
| 87 | u16 intercept_dr_read; |
| 88 | u16 intercept_dr_write; |
| 89 | u32 intercept_exceptions; |
| 90 | u64 intercept; |
| 91 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 92 | }; |
| 93 | |
Avi Kivity | 6c8166a | 2009-05-31 18:15:37 +0300 | [diff] [blame] | 94 | struct vcpu_svm { |
| 95 | struct kvm_vcpu vcpu; |
| 96 | struct vmcb *vmcb; |
| 97 | unsigned long vmcb_pa; |
| 98 | struct svm_cpu_data *svm_data; |
| 99 | uint64_t asid_generation; |
| 100 | uint64_t sysenter_esp; |
| 101 | uint64_t sysenter_eip; |
| 102 | |
| 103 | u64 next_rip; |
| 104 | |
| 105 | u64 host_user_msrs[NR_HOST_SAVE_USER_MSRS]; |
| 106 | u64 host_gs_base; |
Avi Kivity | 6c8166a | 2009-05-31 18:15:37 +0300 | [diff] [blame] | 107 | |
| 108 | u32 *msrpm; |
Avi Kivity | 6c8166a | 2009-05-31 18:15:37 +0300 | [diff] [blame] | 109 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 110 | struct nested_state nested; |
Avi Kivity | 6c8166a | 2009-05-31 18:15:37 +0300 | [diff] [blame] | 111 | }; |
| 112 | |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 113 | /* enable NPT for AMD64 and X86 with PAE */ |
| 114 | #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) |
| 115 | static bool npt_enabled = true; |
| 116 | #else |
Joerg Roedel | e3da3ac | 2008-02-07 13:47:39 +0100 | [diff] [blame] | 117 | static bool npt_enabled = false; |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 118 | #endif |
Joerg Roedel | 6c7dac7 | 2008-02-07 13:47:40 +0100 | [diff] [blame] | 119 | static int npt = 1; |
| 120 | |
| 121 | module_param(npt, int, S_IRUGO); |
Joerg Roedel | e3da3ac | 2008-02-07 13:47:39 +0100 | [diff] [blame] | 122 | |
Alexander Graf | 236de05 | 2008-11-25 20:17:10 +0100 | [diff] [blame] | 123 | static int nested = 0; |
| 124 | module_param(nested, int, S_IRUGO); |
| 125 | |
Joerg Roedel | 44874f8 | 2008-08-27 14:18:43 +0200 | [diff] [blame] | 126 | static void svm_flush_tlb(struct kvm_vcpu *vcpu); |
Joerg Roedel | a5c3832 | 2009-08-07 11:49:32 +0200 | [diff] [blame] | 127 | static void svm_complete_interrupts(struct vcpu_svm *svm); |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 128 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 129 | static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override); |
| 130 | static int nested_svm_vmexit(struct vcpu_svm *svm); |
| 131 | static int nested_svm_vmsave(struct vcpu_svm *svm, void *nested_vmcb, |
| 132 | void *arg2, void *opaque); |
| 133 | static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, |
| 134 | bool has_error_code, u32 error_code); |
| 135 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 136 | static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu) |
| 137 | { |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 138 | return container_of(vcpu, struct vcpu_svm, vcpu); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 139 | } |
| 140 | |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 141 | static inline bool is_nested(struct vcpu_svm *svm) |
| 142 | { |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 143 | return svm->nested.vmcb; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 144 | } |
| 145 | |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 146 | static inline void enable_gif(struct vcpu_svm *svm) |
| 147 | { |
| 148 | svm->vcpu.arch.hflags |= HF_GIF_MASK; |
| 149 | } |
| 150 | |
| 151 | static inline void disable_gif(struct vcpu_svm *svm) |
| 152 | { |
| 153 | svm->vcpu.arch.hflags &= ~HF_GIF_MASK; |
| 154 | } |
| 155 | |
| 156 | static inline bool gif_set(struct vcpu_svm *svm) |
| 157 | { |
| 158 | return !!(svm->vcpu.arch.hflags & HF_GIF_MASK); |
| 159 | } |
| 160 | |
Harvey Harrison | 4866d5e | 2008-02-19 10:32:02 -0800 | [diff] [blame] | 161 | static unsigned long iopm_base; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 162 | |
| 163 | struct kvm_ldttss_desc { |
| 164 | u16 limit0; |
| 165 | u16 base0; |
| 166 | unsigned base1 : 8, type : 5, dpl : 2, p : 1; |
| 167 | unsigned limit1 : 4, zero0 : 3, g : 1, base2 : 8; |
| 168 | u32 base3; |
| 169 | u32 zero1; |
| 170 | } __attribute__((packed)); |
| 171 | |
| 172 | struct svm_cpu_data { |
| 173 | int cpu; |
| 174 | |
Avi Kivity | 5008fdf | 2007-04-02 13:05:50 +0300 | [diff] [blame] | 175 | u64 asid_generation; |
| 176 | u32 max_asid; |
| 177 | u32 next_asid; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 178 | struct kvm_ldttss_desc *tss_desc; |
| 179 | |
| 180 | struct page *save_area; |
| 181 | }; |
| 182 | |
| 183 | static DEFINE_PER_CPU(struct svm_cpu_data *, svm_data); |
Joerg Roedel | 80b7706 | 2007-03-30 17:02:14 +0300 | [diff] [blame] | 184 | static uint32_t svm_features; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 185 | |
| 186 | struct svm_init_data { |
| 187 | int cpu; |
| 188 | int r; |
| 189 | }; |
| 190 | |
| 191 | static u32 msrpm_ranges[] = {0, 0xc0000000, 0xc0010000}; |
| 192 | |
Ahmed S. Darwish | 9d8f549 | 2007-02-19 14:37:46 +0200 | [diff] [blame] | 193 | #define NUM_MSR_MAPS ARRAY_SIZE(msrpm_ranges) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 194 | #define MSRS_RANGE_SIZE 2048 |
| 195 | #define MSRS_IN_RANGE (MSRS_RANGE_SIZE * 8 / 2) |
| 196 | |
| 197 | #define MAX_INST_SIZE 15 |
| 198 | |
Joerg Roedel | 80b7706 | 2007-03-30 17:02:14 +0300 | [diff] [blame] | 199 | static inline u32 svm_has(u32 feat) |
| 200 | { |
| 201 | return svm_features & feat; |
| 202 | } |
| 203 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 204 | static inline void clgi(void) |
| 205 | { |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 206 | asm volatile (__ex(SVM_CLGI)); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 207 | } |
| 208 | |
| 209 | static inline void stgi(void) |
| 210 | { |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 211 | asm volatile (__ex(SVM_STGI)); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 212 | } |
| 213 | |
| 214 | static inline void invlpga(unsigned long addr, u32 asid) |
| 215 | { |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 216 | asm volatile (__ex(SVM_INVLPGA) :: "a"(addr), "c"(asid)); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 217 | } |
| 218 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 219 | static inline void force_new_asid(struct kvm_vcpu *vcpu) |
| 220 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 221 | to_svm(vcpu)->asid_generation--; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 222 | } |
| 223 | |
| 224 | static inline void flush_guest_tlb(struct kvm_vcpu *vcpu) |
| 225 | { |
| 226 | force_new_asid(vcpu); |
| 227 | } |
| 228 | |
| 229 | static void svm_set_efer(struct kvm_vcpu *vcpu, u64 efer) |
| 230 | { |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 231 | if (!npt_enabled && !(efer & EFER_LMA)) |
Carlo Marcelo Arenas Belon | 2b5203e | 2007-12-01 06:17:11 -0600 | [diff] [blame] | 232 | efer &= ~EFER_LME; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 233 | |
Alexander Graf | 9962d03 | 2008-11-25 20:17:02 +0100 | [diff] [blame] | 234 | to_svm(vcpu)->vmcb->save.efer = efer | EFER_SVME; |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 235 | vcpu->arch.shadow_efer = efer; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 236 | } |
| 237 | |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 238 | static void svm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr, |
| 239 | bool has_error_code, u32 error_code) |
| 240 | { |
| 241 | struct vcpu_svm *svm = to_svm(vcpu); |
| 242 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 243 | /* If we are within a nested VM we'd better #VMEXIT and let the |
| 244 | guest handle the exception */ |
| 245 | if (nested_svm_check_exception(svm, nr, has_error_code, error_code)) |
| 246 | return; |
| 247 | |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 248 | svm->vmcb->control.event_inj = nr |
| 249 | | SVM_EVTINJ_VALID |
| 250 | | (has_error_code ? SVM_EVTINJ_VALID_ERR : 0) |
| 251 | | SVM_EVTINJ_TYPE_EXEPT; |
| 252 | svm->vmcb->control.event_inj_err = error_code; |
| 253 | } |
| 254 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 255 | static int is_external_interrupt(u32 info) |
| 256 | { |
| 257 | info &= SVM_EVTINJ_TYPE_MASK | SVM_EVTINJ_VALID; |
| 258 | return info == (SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR); |
| 259 | } |
| 260 | |
Glauber Costa | 2809f5d | 2009-05-12 16:21:05 -0400 | [diff] [blame] | 261 | static u32 svm_get_interrupt_shadow(struct kvm_vcpu *vcpu, int mask) |
| 262 | { |
| 263 | struct vcpu_svm *svm = to_svm(vcpu); |
| 264 | u32 ret = 0; |
| 265 | |
| 266 | if (svm->vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) |
| 267 | ret |= X86_SHADOW_INT_STI | X86_SHADOW_INT_MOV_SS; |
| 268 | return ret & mask; |
| 269 | } |
| 270 | |
| 271 | static void svm_set_interrupt_shadow(struct kvm_vcpu *vcpu, int mask) |
| 272 | { |
| 273 | struct vcpu_svm *svm = to_svm(vcpu); |
| 274 | |
| 275 | if (mask == 0) |
| 276 | svm->vmcb->control.int_state &= ~SVM_INTERRUPT_SHADOW_MASK; |
| 277 | else |
| 278 | svm->vmcb->control.int_state |= SVM_INTERRUPT_SHADOW_MASK; |
| 279 | |
| 280 | } |
| 281 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 282 | static void skip_emulated_instruction(struct kvm_vcpu *vcpu) |
| 283 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 284 | struct vcpu_svm *svm = to_svm(vcpu); |
| 285 | |
| 286 | if (!svm->next_rip) { |
Gleb Natapov | f629cf8 | 2009-05-11 13:35:49 +0300 | [diff] [blame] | 287 | if (emulate_instruction(vcpu, vcpu->run, 0, 0, EMULTYPE_SKIP) != |
| 288 | EMULATE_DONE) |
| 289 | printk(KERN_DEBUG "%s: NOP\n", __func__); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 290 | return; |
| 291 | } |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 292 | if (svm->next_rip - kvm_rip_read(vcpu) > MAX_INST_SIZE) |
| 293 | printk(KERN_ERR "%s: ip 0x%lx next 0x%llx\n", |
| 294 | __func__, kvm_rip_read(vcpu), svm->next_rip); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 295 | |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 296 | kvm_rip_write(vcpu, svm->next_rip); |
Glauber Costa | 2809f5d | 2009-05-12 16:21:05 -0400 | [diff] [blame] | 297 | svm_set_interrupt_shadow(vcpu, 0); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 298 | } |
| 299 | |
| 300 | static int has_svm(void) |
| 301 | { |
Eduardo Habkost | 63d1142 | 2008-11-17 19:03:20 -0200 | [diff] [blame] | 302 | const char *msg; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 303 | |
Eduardo Habkost | 63d1142 | 2008-11-17 19:03:20 -0200 | [diff] [blame] | 304 | if (!cpu_has_svm(&msg)) { |
Joe Perches | ff81ff1 | 2009-01-08 11:05:17 -0800 | [diff] [blame] | 305 | printk(KERN_INFO "has_svm: %s\n", msg); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 306 | return 0; |
| 307 | } |
| 308 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 309 | return 1; |
| 310 | } |
| 311 | |
| 312 | static void svm_hardware_disable(void *garbage) |
| 313 | { |
Eduardo Habkost | 2c8dcee | 2008-11-17 19:03:21 -0200 | [diff] [blame] | 314 | cpu_svm_disable(); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 315 | } |
| 316 | |
| 317 | static void svm_hardware_enable(void *garbage) |
| 318 | { |
| 319 | |
| 320 | struct svm_cpu_data *svm_data; |
| 321 | uint64_t efer; |
Akinobu Mita | b792c34 | 2009-07-19 00:00:01 +0900 | [diff] [blame] | 322 | struct descriptor_table gdt_descr; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 323 | struct desc_struct *gdt; |
| 324 | int me = raw_smp_processor_id(); |
| 325 | |
| 326 | if (!has_svm()) { |
| 327 | printk(KERN_ERR "svm_cpu_init: err EOPNOTSUPP on %d\n", me); |
| 328 | return; |
| 329 | } |
| 330 | svm_data = per_cpu(svm_data, me); |
| 331 | |
| 332 | if (!svm_data) { |
| 333 | printk(KERN_ERR "svm_cpu_init: svm_data is NULL on %d\n", |
| 334 | me); |
| 335 | return; |
| 336 | } |
| 337 | |
| 338 | svm_data->asid_generation = 1; |
| 339 | svm_data->max_asid = cpuid_ebx(SVM_CPUID_FUNC) - 1; |
| 340 | svm_data->next_asid = svm_data->max_asid + 1; |
| 341 | |
Akinobu Mita | b792c34 | 2009-07-19 00:00:01 +0900 | [diff] [blame] | 342 | kvm_get_gdt(&gdt_descr); |
| 343 | gdt = (struct desc_struct *)gdt_descr.base; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 344 | svm_data->tss_desc = (struct kvm_ldttss_desc *)(gdt + GDT_ENTRY_TSS); |
| 345 | |
| 346 | rdmsrl(MSR_EFER, efer); |
Alexander Graf | 9962d03 | 2008-11-25 20:17:02 +0100 | [diff] [blame] | 347 | wrmsrl(MSR_EFER, efer | EFER_SVME); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 348 | |
| 349 | wrmsrl(MSR_VM_HSAVE_PA, |
| 350 | page_to_pfn(svm_data->save_area) << PAGE_SHIFT); |
| 351 | } |
| 352 | |
Joerg Roedel | 0da1db75 | 2008-07-02 16:02:11 +0200 | [diff] [blame] | 353 | static void svm_cpu_uninit(int cpu) |
| 354 | { |
| 355 | struct svm_cpu_data *svm_data |
| 356 | = per_cpu(svm_data, raw_smp_processor_id()); |
| 357 | |
| 358 | if (!svm_data) |
| 359 | return; |
| 360 | |
| 361 | per_cpu(svm_data, raw_smp_processor_id()) = NULL; |
| 362 | __free_page(svm_data->save_area); |
| 363 | kfree(svm_data); |
| 364 | } |
| 365 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 366 | static int svm_cpu_init(int cpu) |
| 367 | { |
| 368 | struct svm_cpu_data *svm_data; |
| 369 | int r; |
| 370 | |
| 371 | svm_data = kzalloc(sizeof(struct svm_cpu_data), GFP_KERNEL); |
| 372 | if (!svm_data) |
| 373 | return -ENOMEM; |
| 374 | svm_data->cpu = cpu; |
| 375 | svm_data->save_area = alloc_page(GFP_KERNEL); |
| 376 | r = -ENOMEM; |
| 377 | if (!svm_data->save_area) |
| 378 | goto err_1; |
| 379 | |
| 380 | per_cpu(svm_data, cpu) = svm_data; |
| 381 | |
| 382 | return 0; |
| 383 | |
| 384 | err_1: |
| 385 | kfree(svm_data); |
| 386 | return r; |
| 387 | |
| 388 | } |
| 389 | |
Rusty Russell | bfc733a | 2007-07-31 20:42:42 +1000 | [diff] [blame] | 390 | static void set_msr_interception(u32 *msrpm, unsigned msr, |
| 391 | int read, int write) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 392 | { |
| 393 | int i; |
| 394 | |
| 395 | for (i = 0; i < NUM_MSR_MAPS; i++) { |
| 396 | if (msr >= msrpm_ranges[i] && |
| 397 | msr < msrpm_ranges[i] + MSRS_IN_RANGE) { |
| 398 | u32 msr_offset = (i * MSRS_IN_RANGE + msr - |
| 399 | msrpm_ranges[i]) * 2; |
| 400 | |
| 401 | u32 *base = msrpm + (msr_offset / 32); |
| 402 | u32 msr_shift = msr_offset % 32; |
| 403 | u32 mask = ((write) ? 0 : 2) | ((read) ? 0 : 1); |
| 404 | *base = (*base & ~(0x3 << msr_shift)) | |
| 405 | (mask << msr_shift); |
Rusty Russell | bfc733a | 2007-07-31 20:42:42 +1000 | [diff] [blame] | 406 | return; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 407 | } |
| 408 | } |
Rusty Russell | bfc733a | 2007-07-31 20:42:42 +1000 | [diff] [blame] | 409 | BUG(); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 410 | } |
| 411 | |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 412 | static void svm_vcpu_init_msrpm(u32 *msrpm) |
| 413 | { |
| 414 | memset(msrpm, 0xff, PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER)); |
| 415 | |
| 416 | #ifdef CONFIG_X86_64 |
| 417 | set_msr_interception(msrpm, MSR_GS_BASE, 1, 1); |
| 418 | set_msr_interception(msrpm, MSR_FS_BASE, 1, 1); |
| 419 | set_msr_interception(msrpm, MSR_KERNEL_GS_BASE, 1, 1); |
| 420 | set_msr_interception(msrpm, MSR_LSTAR, 1, 1); |
| 421 | set_msr_interception(msrpm, MSR_CSTAR, 1, 1); |
| 422 | set_msr_interception(msrpm, MSR_SYSCALL_MASK, 1, 1); |
| 423 | #endif |
| 424 | set_msr_interception(msrpm, MSR_K6_STAR, 1, 1); |
| 425 | set_msr_interception(msrpm, MSR_IA32_SYSENTER_CS, 1, 1); |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 426 | } |
| 427 | |
Joerg Roedel | 24e09cb | 2008-02-13 18:58:47 +0100 | [diff] [blame] | 428 | static void svm_enable_lbrv(struct vcpu_svm *svm) |
| 429 | { |
| 430 | u32 *msrpm = svm->msrpm; |
| 431 | |
| 432 | svm->vmcb->control.lbr_ctl = 1; |
| 433 | set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 1, 1); |
| 434 | set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 1, 1); |
| 435 | set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 1, 1); |
| 436 | set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP, 1, 1); |
| 437 | } |
| 438 | |
| 439 | static void svm_disable_lbrv(struct vcpu_svm *svm) |
| 440 | { |
| 441 | u32 *msrpm = svm->msrpm; |
| 442 | |
| 443 | svm->vmcb->control.lbr_ctl = 0; |
| 444 | set_msr_interception(msrpm, MSR_IA32_LASTBRANCHFROMIP, 0, 0); |
| 445 | set_msr_interception(msrpm, MSR_IA32_LASTBRANCHTOIP, 0, 0); |
| 446 | set_msr_interception(msrpm, MSR_IA32_LASTINTFROMIP, 0, 0); |
| 447 | set_msr_interception(msrpm, MSR_IA32_LASTINTTOIP, 0, 0); |
| 448 | } |
| 449 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 450 | static __init int svm_hardware_setup(void) |
| 451 | { |
| 452 | int cpu; |
| 453 | struct page *iopm_pages; |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 454 | void *iopm_va; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 455 | int r; |
| 456 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 457 | iopm_pages = alloc_pages(GFP_KERNEL, IOPM_ALLOC_ORDER); |
| 458 | |
| 459 | if (!iopm_pages) |
| 460 | return -ENOMEM; |
Anthony Liguori | c868133 | 2007-04-30 09:48:11 +0300 | [diff] [blame] | 461 | |
| 462 | iopm_va = page_address(iopm_pages); |
| 463 | memset(iopm_va, 0xff, PAGE_SIZE * (1 << IOPM_ALLOC_ORDER)); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 464 | iopm_base = page_to_pfn(iopm_pages) << PAGE_SHIFT; |
| 465 | |
Joerg Roedel | 50a37eb | 2008-01-31 14:57:38 +0100 | [diff] [blame] | 466 | if (boot_cpu_has(X86_FEATURE_NX)) |
| 467 | kvm_enable_efer_bits(EFER_NX); |
| 468 | |
Alexander Graf | 1b2fd70 | 2009-02-02 16:23:51 +0100 | [diff] [blame] | 469 | if (boot_cpu_has(X86_FEATURE_FXSR_OPT)) |
| 470 | kvm_enable_efer_bits(EFER_FFXSR); |
| 471 | |
Alexander Graf | 236de05 | 2008-11-25 20:17:10 +0100 | [diff] [blame] | 472 | if (nested) { |
| 473 | printk(KERN_INFO "kvm: Nested Virtualization enabled\n"); |
| 474 | kvm_enable_efer_bits(EFER_SVME); |
| 475 | } |
| 476 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 477 | for_each_online_cpu(cpu) { |
| 478 | r = svm_cpu_init(cpu); |
| 479 | if (r) |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 480 | goto err; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 481 | } |
Joerg Roedel | 33bd6a0 | 2008-02-07 13:47:38 +0100 | [diff] [blame] | 482 | |
| 483 | svm_features = cpuid_edx(SVM_CPUID_FUNC); |
| 484 | |
Joerg Roedel | e3da3ac | 2008-02-07 13:47:39 +0100 | [diff] [blame] | 485 | if (!svm_has(SVM_FEATURE_NPT)) |
| 486 | npt_enabled = false; |
| 487 | |
Joerg Roedel | 6c7dac7 | 2008-02-07 13:47:40 +0100 | [diff] [blame] | 488 | if (npt_enabled && !npt) { |
| 489 | printk(KERN_INFO "kvm: Nested Paging disabled\n"); |
| 490 | npt_enabled = false; |
| 491 | } |
| 492 | |
Joerg Roedel | 1855267 | 2008-02-07 13:47:41 +0100 | [diff] [blame] | 493 | if (npt_enabled) { |
Joerg Roedel | e3da3ac | 2008-02-07 13:47:39 +0100 | [diff] [blame] | 494 | printk(KERN_INFO "kvm: Nested Paging enabled\n"); |
Joerg Roedel | 1855267 | 2008-02-07 13:47:41 +0100 | [diff] [blame] | 495 | kvm_enable_tdp(); |
Joerg Roedel | 5f4cb66 | 2008-07-14 20:36:36 +0200 | [diff] [blame] | 496 | } else |
| 497 | kvm_disable_tdp(); |
Joerg Roedel | e3da3ac | 2008-02-07 13:47:39 +0100 | [diff] [blame] | 498 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 499 | return 0; |
| 500 | |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 501 | err: |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 502 | __free_pages(iopm_pages, IOPM_ALLOC_ORDER); |
| 503 | iopm_base = 0; |
| 504 | return r; |
| 505 | } |
| 506 | |
| 507 | static __exit void svm_hardware_unsetup(void) |
| 508 | { |
Joerg Roedel | 0da1db75 | 2008-07-02 16:02:11 +0200 | [diff] [blame] | 509 | int cpu; |
| 510 | |
| 511 | for_each_online_cpu(cpu) |
| 512 | svm_cpu_uninit(cpu); |
| 513 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 514 | __free_pages(pfn_to_page(iopm_base >> PAGE_SHIFT), IOPM_ALLOC_ORDER); |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 515 | iopm_base = 0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | static void init_seg(struct vmcb_seg *seg) |
| 519 | { |
| 520 | seg->selector = 0; |
| 521 | seg->attrib = SVM_SELECTOR_P_MASK | SVM_SELECTOR_S_MASK | |
| 522 | SVM_SELECTOR_WRITE_MASK; /* Read/Write Data Segment */ |
| 523 | seg->limit = 0xffff; |
| 524 | seg->base = 0; |
| 525 | } |
| 526 | |
| 527 | static void init_sys_seg(struct vmcb_seg *seg, uint32_t type) |
| 528 | { |
| 529 | seg->selector = 0; |
| 530 | seg->attrib = SVM_SELECTOR_P_MASK | type; |
| 531 | seg->limit = 0xffff; |
| 532 | seg->base = 0; |
| 533 | } |
| 534 | |
Joerg Roedel | e6101a9 | 2008-02-13 18:58:45 +0100 | [diff] [blame] | 535 | static void init_vmcb(struct vcpu_svm *svm) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 536 | { |
Joerg Roedel | e6101a9 | 2008-02-13 18:58:45 +0100 | [diff] [blame] | 537 | struct vmcb_control_area *control = &svm->vmcb->control; |
| 538 | struct vmcb_save_area *save = &svm->vmcb->save; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 539 | |
| 540 | control->intercept_cr_read = INTERCEPT_CR0_MASK | |
| 541 | INTERCEPT_CR3_MASK | |
Joerg Roedel | 649d686 | 2008-04-16 16:51:15 +0200 | [diff] [blame] | 542 | INTERCEPT_CR4_MASK; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 543 | |
| 544 | control->intercept_cr_write = INTERCEPT_CR0_MASK | |
| 545 | INTERCEPT_CR3_MASK | |
Avi Kivity | 80a8119 | 2007-12-06 19:50:00 +0200 | [diff] [blame] | 546 | INTERCEPT_CR4_MASK | |
| 547 | INTERCEPT_CR8_MASK; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 548 | |
| 549 | control->intercept_dr_read = INTERCEPT_DR0_MASK | |
| 550 | INTERCEPT_DR1_MASK | |
| 551 | INTERCEPT_DR2_MASK | |
| 552 | INTERCEPT_DR3_MASK; |
| 553 | |
| 554 | control->intercept_dr_write = INTERCEPT_DR0_MASK | |
| 555 | INTERCEPT_DR1_MASK | |
| 556 | INTERCEPT_DR2_MASK | |
| 557 | INTERCEPT_DR3_MASK | |
| 558 | INTERCEPT_DR5_MASK | |
| 559 | INTERCEPT_DR7_MASK; |
| 560 | |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 561 | control->intercept_exceptions = (1 << PF_VECTOR) | |
Joerg Roedel | 53371b5 | 2008-04-09 14:15:30 +0200 | [diff] [blame] | 562 | (1 << UD_VECTOR) | |
| 563 | (1 << MC_VECTOR); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 564 | |
| 565 | |
| 566 | control->intercept = (1ULL << INTERCEPT_INTR) | |
| 567 | (1ULL << INTERCEPT_NMI) | |
Joerg Roedel | 0152527 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 568 | (1ULL << INTERCEPT_SMI) | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 569 | (1ULL << INTERCEPT_CPUID) | |
Avi Kivity | cf5a94d | 2007-10-28 16:11:58 +0200 | [diff] [blame] | 570 | (1ULL << INTERCEPT_INVD) | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 571 | (1ULL << INTERCEPT_HLT) | |
Marcelo Tosatti | a705289 | 2008-09-23 13:18:35 -0300 | [diff] [blame] | 572 | (1ULL << INTERCEPT_INVLPG) | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 573 | (1ULL << INTERCEPT_INVLPGA) | |
| 574 | (1ULL << INTERCEPT_IOIO_PROT) | |
| 575 | (1ULL << INTERCEPT_MSR_PROT) | |
| 576 | (1ULL << INTERCEPT_TASK_SWITCH) | |
Joerg Roedel | 46fe4dd | 2007-01-26 00:56:42 -0800 | [diff] [blame] | 577 | (1ULL << INTERCEPT_SHUTDOWN) | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 578 | (1ULL << INTERCEPT_VMRUN) | |
| 579 | (1ULL << INTERCEPT_VMMCALL) | |
| 580 | (1ULL << INTERCEPT_VMLOAD) | |
| 581 | (1ULL << INTERCEPT_VMSAVE) | |
| 582 | (1ULL << INTERCEPT_STGI) | |
| 583 | (1ULL << INTERCEPT_CLGI) | |
Joerg Roedel | 916ce23 | 2007-03-21 19:47:00 +0100 | [diff] [blame] | 584 | (1ULL << INTERCEPT_SKINIT) | |
Avi Kivity | cf5a94d | 2007-10-28 16:11:58 +0200 | [diff] [blame] | 585 | (1ULL << INTERCEPT_WBINVD) | |
Joerg Roedel | 916ce23 | 2007-03-21 19:47:00 +0100 | [diff] [blame] | 586 | (1ULL << INTERCEPT_MONITOR) | |
| 587 | (1ULL << INTERCEPT_MWAIT); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 588 | |
| 589 | control->iopm_base_pa = iopm_base; |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 590 | control->msrpm_base_pa = __pa(svm->msrpm); |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 591 | control->tsc_offset = 0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 592 | control->int_ctl = V_INTR_MASKING_MASK; |
| 593 | |
| 594 | init_seg(&save->es); |
| 595 | init_seg(&save->ss); |
| 596 | init_seg(&save->ds); |
| 597 | init_seg(&save->fs); |
| 598 | init_seg(&save->gs); |
| 599 | |
| 600 | save->cs.selector = 0xf000; |
| 601 | /* Executable/Readable Code Segment */ |
| 602 | save->cs.attrib = SVM_SELECTOR_READ_MASK | SVM_SELECTOR_P_MASK | |
| 603 | SVM_SELECTOR_S_MASK | SVM_SELECTOR_CODE_MASK; |
| 604 | save->cs.limit = 0xffff; |
Avi Kivity | d92899a | 2007-02-12 00:54:38 -0800 | [diff] [blame] | 605 | /* |
| 606 | * cs.base should really be 0xffff0000, but vmx can't handle that, so |
| 607 | * be consistent with it. |
| 608 | * |
| 609 | * Replace when we have real mode working for vmx. |
| 610 | */ |
| 611 | save->cs.base = 0xf0000; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 612 | |
| 613 | save->gdtr.limit = 0xffff; |
| 614 | save->idtr.limit = 0xffff; |
| 615 | |
| 616 | init_sys_seg(&save->ldtr, SEG_TYPE_LDT); |
| 617 | init_sys_seg(&save->tr, SEG_TYPE_BUSY_TSS16); |
| 618 | |
Alexander Graf | 9962d03 | 2008-11-25 20:17:02 +0100 | [diff] [blame] | 619 | save->efer = EFER_SVME; |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 620 | save->dr6 = 0xffff0ff0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 621 | save->dr7 = 0x400; |
| 622 | save->rflags = 2; |
| 623 | save->rip = 0x0000fff0; |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 624 | svm->vcpu.arch.regs[VCPU_REGS_RIP] = save->rip; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 625 | |
| 626 | /* |
| 627 | * cr0 val on cpu init should be 0x60000010, we enable cpu |
| 628 | * cache by default. the orderly way is to enable cache in bios. |
| 629 | */ |
Rusty Russell | 707d92fa | 2007-07-17 23:19:08 +1000 | [diff] [blame] | 630 | save->cr0 = 0x00000010 | X86_CR0_PG | X86_CR0_WP; |
Rusty Russell | 66aee91 | 2007-07-17 23:34:16 +1000 | [diff] [blame] | 631 | save->cr4 = X86_CR4_PAE; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 632 | /* rdx = ?? */ |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 633 | |
| 634 | if (npt_enabled) { |
| 635 | /* Setup VMCB for Nested Paging */ |
| 636 | control->nested_ctl = 1; |
Marcelo Tosatti | a705289 | 2008-09-23 13:18:35 -0300 | [diff] [blame] | 637 | control->intercept &= ~((1ULL << INTERCEPT_TASK_SWITCH) | |
| 638 | (1ULL << INTERCEPT_INVLPG)); |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 639 | control->intercept_exceptions &= ~(1 << PF_VECTOR); |
| 640 | control->intercept_cr_read &= ~(INTERCEPT_CR0_MASK| |
| 641 | INTERCEPT_CR3_MASK); |
| 642 | control->intercept_cr_write &= ~(INTERCEPT_CR0_MASK| |
| 643 | INTERCEPT_CR3_MASK); |
| 644 | save->g_pat = 0x0007040600070406ULL; |
| 645 | /* enable caching because the QEMU Bios doesn't enable it */ |
| 646 | save->cr0 = X86_CR0_ET; |
| 647 | save->cr3 = 0; |
| 648 | save->cr4 = 0; |
| 649 | } |
Avi Kivity | a79d2f1 | 2008-04-14 13:10:21 +0300 | [diff] [blame] | 650 | force_new_asid(&svm->vcpu); |
Alexander Graf | 1371d90 | 2008-11-25 20:17:04 +0100 | [diff] [blame] | 651 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 652 | svm->nested.vmcb = 0; |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 653 | svm->vcpu.arch.hflags = 0; |
| 654 | |
| 655 | enable_gif(svm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 656 | } |
| 657 | |
Avi Kivity | e00c8cf | 2007-10-21 11:00:39 +0200 | [diff] [blame] | 658 | static int svm_vcpu_reset(struct kvm_vcpu *vcpu) |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 659 | { |
| 660 | struct vcpu_svm *svm = to_svm(vcpu); |
| 661 | |
Joerg Roedel | e6101a9 | 2008-02-13 18:58:45 +0100 | [diff] [blame] | 662 | init_vmcb(svm); |
Avi Kivity | 7043338 | 2007-11-07 12:57:23 +0200 | [diff] [blame] | 663 | |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 664 | if (!kvm_vcpu_is_bsp(vcpu)) { |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 665 | kvm_rip_write(vcpu, 0); |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 666 | svm->vmcb->save.cs.base = svm->vcpu.arch.sipi_vector << 12; |
| 667 | svm->vmcb->save.cs.selector = svm->vcpu.arch.sipi_vector << 8; |
Avi Kivity | 7043338 | 2007-11-07 12:57:23 +0200 | [diff] [blame] | 668 | } |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 669 | vcpu->arch.regs_avail = ~0; |
| 670 | vcpu->arch.regs_dirty = ~0; |
Avi Kivity | e00c8cf | 2007-10-21 11:00:39 +0200 | [diff] [blame] | 671 | |
| 672 | return 0; |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 673 | } |
| 674 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 675 | static struct kvm_vcpu *svm_create_vcpu(struct kvm *kvm, unsigned int id) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 676 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 677 | struct vcpu_svm *svm; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 678 | struct page *page; |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 679 | struct page *msrpm_pages; |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 680 | struct page *hsave_page; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 681 | struct page *nested_msrpm_pages; |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 682 | int err; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 683 | |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 684 | svm = kmem_cache_zalloc(kvm_vcpu_cache, GFP_KERNEL); |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 685 | if (!svm) { |
| 686 | err = -ENOMEM; |
| 687 | goto out; |
| 688 | } |
| 689 | |
| 690 | err = kvm_vcpu_init(&svm->vcpu, kvm, id); |
| 691 | if (err) |
| 692 | goto free_svm; |
| 693 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 694 | page = alloc_page(GFP_KERNEL); |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 695 | if (!page) { |
| 696 | err = -ENOMEM; |
| 697 | goto uninit; |
| 698 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 699 | |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 700 | err = -ENOMEM; |
| 701 | msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER); |
| 702 | if (!msrpm_pages) |
| 703 | goto uninit; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 704 | |
| 705 | nested_msrpm_pages = alloc_pages(GFP_KERNEL, MSRPM_ALLOC_ORDER); |
| 706 | if (!nested_msrpm_pages) |
| 707 | goto uninit; |
| 708 | |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 709 | svm->msrpm = page_address(msrpm_pages); |
| 710 | svm_vcpu_init_msrpm(svm->msrpm); |
| 711 | |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 712 | hsave_page = alloc_page(GFP_KERNEL); |
| 713 | if (!hsave_page) |
| 714 | goto uninit; |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 715 | svm->nested.hsave = page_address(hsave_page); |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 716 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 717 | svm->nested.msrpm = page_address(nested_msrpm_pages); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 718 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 719 | svm->vmcb = page_address(page); |
| 720 | clear_page(svm->vmcb); |
| 721 | svm->vmcb_pa = page_to_pfn(page) << PAGE_SHIFT; |
| 722 | svm->asid_generation = 0; |
Joerg Roedel | e6101a9 | 2008-02-13 18:58:45 +0100 | [diff] [blame] | 723 | init_vmcb(svm); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 724 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 725 | fx_init(&svm->vcpu); |
| 726 | svm->vcpu.fpu_active = 1; |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 727 | svm->vcpu.arch.apic_base = 0xfee00000 | MSR_IA32_APICBASE_ENABLE; |
Gleb Natapov | c5af89b | 2009-06-09 15:56:26 +0300 | [diff] [blame] | 728 | if (kvm_vcpu_is_bsp(&svm->vcpu)) |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 729 | svm->vcpu.arch.apic_base |= MSR_IA32_APICBASE_BSP; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 730 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 731 | return &svm->vcpu; |
Avi Kivity | 36241b8 | 2006-12-22 01:05:20 -0800 | [diff] [blame] | 732 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 733 | uninit: |
| 734 | kvm_vcpu_uninit(&svm->vcpu); |
| 735 | free_svm: |
Rusty Russell | a477034 | 2007-08-01 14:46:11 +1000 | [diff] [blame] | 736 | kmem_cache_free(kvm_vcpu_cache, svm); |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 737 | out: |
| 738 | return ERR_PTR(err); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 739 | } |
| 740 | |
| 741 | static void svm_free_vcpu(struct kvm_vcpu *vcpu) |
| 742 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 743 | struct vcpu_svm *svm = to_svm(vcpu); |
| 744 | |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 745 | __free_page(pfn_to_page(svm->vmcb_pa >> PAGE_SHIFT)); |
Joerg Roedel | f65c229 | 2008-02-13 18:58:46 +0100 | [diff] [blame] | 746 | __free_pages(virt_to_page(svm->msrpm), MSRPM_ALLOC_ORDER); |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 747 | __free_page(virt_to_page(svm->nested.hsave)); |
| 748 | __free_pages(virt_to_page(svm->nested.msrpm), MSRPM_ALLOC_ORDER); |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 749 | kvm_vcpu_uninit(vcpu); |
Rusty Russell | a477034 | 2007-08-01 14:46:11 +1000 | [diff] [blame] | 750 | kmem_cache_free(kvm_vcpu_cache, svm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 751 | } |
| 752 | |
Avi Kivity | 15ad714 | 2007-07-11 18:17:21 +0300 | [diff] [blame] | 753 | static void svm_vcpu_load(struct kvm_vcpu *vcpu, int cpu) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 754 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 755 | struct vcpu_svm *svm = to_svm(vcpu); |
Avi Kivity | 15ad714 | 2007-07-11 18:17:21 +0300 | [diff] [blame] | 756 | int i; |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 757 | |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 758 | if (unlikely(cpu != vcpu->cpu)) { |
| 759 | u64 tsc_this, delta; |
| 760 | |
| 761 | /* |
| 762 | * Make sure that the guest sees a monotonically |
| 763 | * increasing TSC. |
| 764 | */ |
| 765 | rdtscll(tsc_this); |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 766 | delta = vcpu->arch.host_tsc - tsc_this; |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 767 | svm->vmcb->control.tsc_offset += delta; |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 768 | vcpu->cpu = cpu; |
Marcelo Tosatti | 2f59971 | 2008-05-27 12:10:20 -0300 | [diff] [blame] | 769 | kvm_migrate_timers(vcpu); |
Marcelo Tosatti | 4b656b1 | 2009-07-21 12:47:45 -0300 | [diff] [blame] | 770 | svm->asid_generation = 0; |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 771 | } |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 772 | |
| 773 | for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++) |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 774 | rdmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | static void svm_vcpu_put(struct kvm_vcpu *vcpu) |
| 778 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 779 | struct vcpu_svm *svm = to_svm(vcpu); |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 780 | int i; |
| 781 | |
Avi Kivity | e1beb1d | 2007-11-18 13:50:24 +0200 | [diff] [blame] | 782 | ++vcpu->stat.host_state_reload; |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 783 | for (i = 0; i < NR_HOST_SAVE_USER_MSRS; i++) |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 784 | wrmsrl(host_save_user_msrs[i], svm->host_user_msrs[i]); |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 785 | |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 786 | rdtscll(vcpu->arch.host_tsc); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 787 | } |
| 788 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 789 | static unsigned long svm_get_rflags(struct kvm_vcpu *vcpu) |
| 790 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 791 | return to_svm(vcpu)->vmcb->save.rflags; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 792 | } |
| 793 | |
| 794 | static void svm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags) |
| 795 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 796 | to_svm(vcpu)->vmcb->save.rflags = rflags; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 797 | } |
| 798 | |
Avi Kivity | 6de4f3a | 2009-05-31 22:58:47 +0300 | [diff] [blame] | 799 | static void svm_cache_reg(struct kvm_vcpu *vcpu, enum kvm_reg reg) |
| 800 | { |
| 801 | switch (reg) { |
| 802 | case VCPU_EXREG_PDPTR: |
| 803 | BUG_ON(!npt_enabled); |
| 804 | load_pdptrs(vcpu, vcpu->arch.cr3); |
| 805 | break; |
| 806 | default: |
| 807 | BUG(); |
| 808 | } |
| 809 | } |
| 810 | |
Alexander Graf | f0b8505 | 2008-11-25 20:17:01 +0100 | [diff] [blame] | 811 | static void svm_set_vintr(struct vcpu_svm *svm) |
| 812 | { |
| 813 | svm->vmcb->control.intercept |= 1ULL << INTERCEPT_VINTR; |
| 814 | } |
| 815 | |
| 816 | static void svm_clear_vintr(struct vcpu_svm *svm) |
| 817 | { |
| 818 | svm->vmcb->control.intercept &= ~(1ULL << INTERCEPT_VINTR); |
| 819 | } |
| 820 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 821 | static struct vmcb_seg *svm_seg(struct kvm_vcpu *vcpu, int seg) |
| 822 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 823 | struct vmcb_save_area *save = &to_svm(vcpu)->vmcb->save; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 824 | |
| 825 | switch (seg) { |
| 826 | case VCPU_SREG_CS: return &save->cs; |
| 827 | case VCPU_SREG_DS: return &save->ds; |
| 828 | case VCPU_SREG_ES: return &save->es; |
| 829 | case VCPU_SREG_FS: return &save->fs; |
| 830 | case VCPU_SREG_GS: return &save->gs; |
| 831 | case VCPU_SREG_SS: return &save->ss; |
| 832 | case VCPU_SREG_TR: return &save->tr; |
| 833 | case VCPU_SREG_LDTR: return &save->ldtr; |
| 834 | } |
| 835 | BUG(); |
Al Viro | 8b6d44c | 2007-02-09 16:38:40 +0000 | [diff] [blame] | 836 | return NULL; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 837 | } |
| 838 | |
| 839 | static u64 svm_get_segment_base(struct kvm_vcpu *vcpu, int seg) |
| 840 | { |
| 841 | struct vmcb_seg *s = svm_seg(vcpu, seg); |
| 842 | |
| 843 | return s->base; |
| 844 | } |
| 845 | |
| 846 | static void svm_get_segment(struct kvm_vcpu *vcpu, |
| 847 | struct kvm_segment *var, int seg) |
| 848 | { |
| 849 | struct vmcb_seg *s = svm_seg(vcpu, seg); |
| 850 | |
| 851 | var->base = s->base; |
| 852 | var->limit = s->limit; |
| 853 | var->selector = s->selector; |
| 854 | var->type = s->attrib & SVM_SELECTOR_TYPE_MASK; |
| 855 | var->s = (s->attrib >> SVM_SELECTOR_S_SHIFT) & 1; |
| 856 | var->dpl = (s->attrib >> SVM_SELECTOR_DPL_SHIFT) & 3; |
| 857 | var->present = (s->attrib >> SVM_SELECTOR_P_SHIFT) & 1; |
| 858 | var->avl = (s->attrib >> SVM_SELECTOR_AVL_SHIFT) & 1; |
| 859 | var->l = (s->attrib >> SVM_SELECTOR_L_SHIFT) & 1; |
| 860 | var->db = (s->attrib >> SVM_SELECTOR_DB_SHIFT) & 1; |
| 861 | var->g = (s->attrib >> SVM_SELECTOR_G_SHIFT) & 1; |
Amit Shah | 25022ac | 2008-10-27 09:04:17 +0000 | [diff] [blame] | 862 | |
Andre Przywara | 19bca6a | 2009-04-28 12:45:30 +0200 | [diff] [blame] | 863 | /* AMD's VMCB does not have an explicit unusable field, so emulate it |
| 864 | * for cross vendor migration purposes by "not present" |
| 865 | */ |
| 866 | var->unusable = !var->present || (var->type == 0); |
| 867 | |
Andre Przywara | 1fbdc7a | 2009-01-11 22:39:44 +0100 | [diff] [blame] | 868 | switch (seg) { |
| 869 | case VCPU_SREG_CS: |
| 870 | /* |
| 871 | * SVM always stores 0 for the 'G' bit in the CS selector in |
| 872 | * the VMCB on a VMEXIT. This hurts cross-vendor migration: |
| 873 | * Intel's VMENTRY has a check on the 'G' bit. |
| 874 | */ |
Amit Shah | 25022ac | 2008-10-27 09:04:17 +0000 | [diff] [blame] | 875 | var->g = s->limit > 0xfffff; |
Andre Przywara | 1fbdc7a | 2009-01-11 22:39:44 +0100 | [diff] [blame] | 876 | break; |
| 877 | case VCPU_SREG_TR: |
| 878 | /* |
| 879 | * Work around a bug where the busy flag in the tr selector |
| 880 | * isn't exposed |
| 881 | */ |
Amit Shah | c0d0982 | 2008-10-27 09:04:18 +0000 | [diff] [blame] | 882 | var->type |= 0x2; |
Andre Przywara | 1fbdc7a | 2009-01-11 22:39:44 +0100 | [diff] [blame] | 883 | break; |
| 884 | case VCPU_SREG_DS: |
| 885 | case VCPU_SREG_ES: |
| 886 | case VCPU_SREG_FS: |
| 887 | case VCPU_SREG_GS: |
| 888 | /* |
| 889 | * The accessed bit must always be set in the segment |
| 890 | * descriptor cache, although it can be cleared in the |
| 891 | * descriptor, the cached bit always remains at 1. Since |
| 892 | * Intel has a check on this, set it here to support |
| 893 | * cross-vendor migration. |
| 894 | */ |
| 895 | if (!var->unusable) |
| 896 | var->type |= 0x1; |
| 897 | break; |
Andre Przywara | b586eb0 | 2009-04-28 12:45:43 +0200 | [diff] [blame] | 898 | case VCPU_SREG_SS: |
| 899 | /* On AMD CPUs sometimes the DB bit in the segment |
| 900 | * descriptor is left as 1, although the whole segment has |
| 901 | * been made unusable. Clear it here to pass an Intel VMX |
| 902 | * entry check when cross vendor migrating. |
| 903 | */ |
| 904 | if (var->unusable) |
| 905 | var->db = 0; |
| 906 | break; |
Andre Przywara | 1fbdc7a | 2009-01-11 22:39:44 +0100 | [diff] [blame] | 907 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 908 | } |
| 909 | |
Izik Eidus | 2e4d265 | 2008-03-24 19:38:34 +0200 | [diff] [blame] | 910 | static int svm_get_cpl(struct kvm_vcpu *vcpu) |
| 911 | { |
| 912 | struct vmcb_save_area *save = &to_svm(vcpu)->vmcb->save; |
| 913 | |
| 914 | return save->cpl; |
| 915 | } |
| 916 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 917 | static void svm_get_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt) |
| 918 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 919 | struct vcpu_svm *svm = to_svm(vcpu); |
| 920 | |
| 921 | dt->limit = svm->vmcb->save.idtr.limit; |
| 922 | dt->base = svm->vmcb->save.idtr.base; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 923 | } |
| 924 | |
| 925 | static void svm_set_idt(struct kvm_vcpu *vcpu, struct descriptor_table *dt) |
| 926 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 927 | struct vcpu_svm *svm = to_svm(vcpu); |
| 928 | |
| 929 | svm->vmcb->save.idtr.limit = dt->limit; |
| 930 | svm->vmcb->save.idtr.base = dt->base ; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 931 | } |
| 932 | |
| 933 | static void svm_get_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt) |
| 934 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 935 | struct vcpu_svm *svm = to_svm(vcpu); |
| 936 | |
| 937 | dt->limit = svm->vmcb->save.gdtr.limit; |
| 938 | dt->base = svm->vmcb->save.gdtr.base; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 939 | } |
| 940 | |
| 941 | static void svm_set_gdt(struct kvm_vcpu *vcpu, struct descriptor_table *dt) |
| 942 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 943 | struct vcpu_svm *svm = to_svm(vcpu); |
| 944 | |
| 945 | svm->vmcb->save.gdtr.limit = dt->limit; |
| 946 | svm->vmcb->save.gdtr.base = dt->base ; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 947 | } |
| 948 | |
Anthony Liguori | 25c4c27 | 2007-04-27 09:29:21 +0300 | [diff] [blame] | 949 | static void svm_decache_cr4_guest_bits(struct kvm_vcpu *vcpu) |
Avi Kivity | 399badf | 2007-01-05 16:36:38 -0800 | [diff] [blame] | 950 | { |
| 951 | } |
| 952 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 953 | static void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0) |
| 954 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 955 | struct vcpu_svm *svm = to_svm(vcpu); |
| 956 | |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 957 | #ifdef CONFIG_X86_64 |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 958 | if (vcpu->arch.shadow_efer & EFER_LME) { |
Rusty Russell | 707d92fa | 2007-07-17 23:19:08 +1000 | [diff] [blame] | 959 | if (!is_paging(vcpu) && (cr0 & X86_CR0_PG)) { |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 960 | vcpu->arch.shadow_efer |= EFER_LMA; |
Carlo Marcelo Arenas Belon | 2b5203e | 2007-12-01 06:17:11 -0600 | [diff] [blame] | 961 | svm->vmcb->save.efer |= EFER_LMA | EFER_LME; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 962 | } |
| 963 | |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 964 | if (is_paging(vcpu) && !(cr0 & X86_CR0_PG)) { |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 965 | vcpu->arch.shadow_efer &= ~EFER_LMA; |
Carlo Marcelo Arenas Belon | 2b5203e | 2007-12-01 06:17:11 -0600 | [diff] [blame] | 966 | svm->vmcb->save.efer &= ~(EFER_LMA | EFER_LME); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 967 | } |
| 968 | } |
| 969 | #endif |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 970 | if (npt_enabled) |
| 971 | goto set; |
| 972 | |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 973 | if ((vcpu->arch.cr0 & X86_CR0_TS) && !(cr0 & X86_CR0_TS)) { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 974 | svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR); |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 975 | vcpu->fpu_active = 1; |
| 976 | } |
| 977 | |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 978 | vcpu->arch.cr0 = cr0; |
Rusty Russell | 707d92fa | 2007-07-17 23:19:08 +1000 | [diff] [blame] | 979 | cr0 |= X86_CR0_PG | X86_CR0_WP; |
Joerg Roedel | 6b390b6 | 2008-01-29 13:01:27 +0100 | [diff] [blame] | 980 | if (!vcpu->fpu_active) { |
| 981 | svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR); |
Joerg Roedel | 334df50 | 2008-01-21 13:09:33 +0100 | [diff] [blame] | 982 | cr0 |= X86_CR0_TS; |
Joerg Roedel | 6b390b6 | 2008-01-29 13:01:27 +0100 | [diff] [blame] | 983 | } |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 984 | set: |
| 985 | /* |
| 986 | * re-enable caching here because the QEMU bios |
| 987 | * does not do it - this results in some delay at |
| 988 | * reboot |
| 989 | */ |
| 990 | cr0 &= ~(X86_CR0_CD | X86_CR0_NW); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 991 | svm->vmcb->save.cr0 = cr0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 992 | } |
| 993 | |
| 994 | static void svm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4) |
| 995 | { |
Joerg Roedel | 6394b64 | 2008-04-09 14:15:29 +0200 | [diff] [blame] | 996 | unsigned long host_cr4_mce = read_cr4() & X86_CR4_MCE; |
Joerg Roedel | e5eab0c | 2008-09-09 19:11:51 +0200 | [diff] [blame] | 997 | unsigned long old_cr4 = to_svm(vcpu)->vmcb->save.cr4; |
| 998 | |
| 999 | if (npt_enabled && ((old_cr4 ^ cr4) & X86_CR4_PGE)) |
| 1000 | force_new_asid(vcpu); |
Joerg Roedel | 6394b64 | 2008-04-09 14:15:29 +0200 | [diff] [blame] | 1001 | |
Joerg Roedel | ec07726 | 2008-04-09 14:15:28 +0200 | [diff] [blame] | 1002 | vcpu->arch.cr4 = cr4; |
| 1003 | if (!npt_enabled) |
| 1004 | cr4 |= X86_CR4_PAE; |
Joerg Roedel | 6394b64 | 2008-04-09 14:15:29 +0200 | [diff] [blame] | 1005 | cr4 |= host_cr4_mce; |
Joerg Roedel | ec07726 | 2008-04-09 14:15:28 +0200 | [diff] [blame] | 1006 | to_svm(vcpu)->vmcb->save.cr4 = cr4; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1007 | } |
| 1008 | |
| 1009 | static void svm_set_segment(struct kvm_vcpu *vcpu, |
| 1010 | struct kvm_segment *var, int seg) |
| 1011 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1012 | struct vcpu_svm *svm = to_svm(vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1013 | struct vmcb_seg *s = svm_seg(vcpu, seg); |
| 1014 | |
| 1015 | s->base = var->base; |
| 1016 | s->limit = var->limit; |
| 1017 | s->selector = var->selector; |
| 1018 | if (var->unusable) |
| 1019 | s->attrib = 0; |
| 1020 | else { |
| 1021 | s->attrib = (var->type & SVM_SELECTOR_TYPE_MASK); |
| 1022 | s->attrib |= (var->s & 1) << SVM_SELECTOR_S_SHIFT; |
| 1023 | s->attrib |= (var->dpl & 3) << SVM_SELECTOR_DPL_SHIFT; |
| 1024 | s->attrib |= (var->present & 1) << SVM_SELECTOR_P_SHIFT; |
| 1025 | s->attrib |= (var->avl & 1) << SVM_SELECTOR_AVL_SHIFT; |
| 1026 | s->attrib |= (var->l & 1) << SVM_SELECTOR_L_SHIFT; |
| 1027 | s->attrib |= (var->db & 1) << SVM_SELECTOR_DB_SHIFT; |
| 1028 | s->attrib |= (var->g & 1) << SVM_SELECTOR_G_SHIFT; |
| 1029 | } |
| 1030 | if (seg == VCPU_SREG_CS) |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1031 | svm->vmcb->save.cpl |
| 1032 | = (svm->vmcb->save.cs.attrib |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1033 | >> SVM_SELECTOR_DPL_SHIFT) & 3; |
| 1034 | |
| 1035 | } |
| 1036 | |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 1037 | static void update_db_intercept(struct kvm_vcpu *vcpu) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1038 | { |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1039 | struct vcpu_svm *svm = to_svm(vcpu); |
| 1040 | |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1041 | svm->vmcb->control.intercept_exceptions &= |
| 1042 | ~((1 << DB_VECTOR) | (1 << BP_VECTOR)); |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 1043 | |
| 1044 | if (vcpu->arch.singlestep) |
| 1045 | svm->vmcb->control.intercept_exceptions |= (1 << DB_VECTOR); |
| 1046 | |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1047 | if (vcpu->guest_debug & KVM_GUESTDBG_ENABLE) { |
| 1048 | if (vcpu->guest_debug & |
| 1049 | (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)) |
| 1050 | svm->vmcb->control.intercept_exceptions |= |
| 1051 | 1 << DB_VECTOR; |
| 1052 | if (vcpu->guest_debug & KVM_GUESTDBG_USE_SW_BP) |
| 1053 | svm->vmcb->control.intercept_exceptions |= |
| 1054 | 1 << BP_VECTOR; |
| 1055 | } else |
| 1056 | vcpu->guest_debug = 0; |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 1057 | } |
| 1058 | |
| 1059 | static int svm_guest_debug(struct kvm_vcpu *vcpu, struct kvm_guest_debug *dbg) |
| 1060 | { |
| 1061 | int old_debug = vcpu->guest_debug; |
| 1062 | struct vcpu_svm *svm = to_svm(vcpu); |
| 1063 | |
| 1064 | vcpu->guest_debug = dbg->control; |
| 1065 | |
| 1066 | update_db_intercept(vcpu); |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1067 | |
Jan Kiszka | ae675ef | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1068 | if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) |
| 1069 | svm->vmcb->save.dr7 = dbg->arch.debugreg[7]; |
| 1070 | else |
| 1071 | svm->vmcb->save.dr7 = vcpu->arch.dr7; |
| 1072 | |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1073 | if (vcpu->guest_debug & KVM_GUESTDBG_SINGLESTEP) |
| 1074 | svm->vmcb->save.rflags |= X86_EFLAGS_TF | X86_EFLAGS_RF; |
| 1075 | else if (old_debug & KVM_GUESTDBG_SINGLESTEP) |
| 1076 | svm->vmcb->save.rflags &= ~(X86_EFLAGS_TF | X86_EFLAGS_RF); |
| 1077 | |
| 1078 | return 0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1079 | } |
| 1080 | |
| 1081 | static void load_host_msrs(struct kvm_vcpu *vcpu) |
| 1082 | { |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 1083 | #ifdef CONFIG_X86_64 |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1084 | wrmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base); |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 1085 | #endif |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1086 | } |
| 1087 | |
| 1088 | static void save_host_msrs(struct kvm_vcpu *vcpu) |
| 1089 | { |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 1090 | #ifdef CONFIG_X86_64 |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1091 | rdmsrl(MSR_GS_BASE, to_svm(vcpu)->host_gs_base); |
Anthony Liguori | 94dfbdb | 2007-04-29 11:56:06 +0300 | [diff] [blame] | 1092 | #endif |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1093 | } |
| 1094 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1095 | static void new_asid(struct vcpu_svm *svm, struct svm_cpu_data *svm_data) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1096 | { |
| 1097 | if (svm_data->next_asid > svm_data->max_asid) { |
| 1098 | ++svm_data->asid_generation; |
| 1099 | svm_data->next_asid = 1; |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1100 | svm->vmcb->control.tlb_ctl = TLB_CONTROL_FLUSH_ALL_ASID; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1101 | } |
| 1102 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1103 | svm->asid_generation = svm_data->asid_generation; |
| 1104 | svm->vmcb->control.asid = svm_data->next_asid++; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1105 | } |
| 1106 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1107 | static unsigned long svm_get_dr(struct kvm_vcpu *vcpu, int dr) |
| 1108 | { |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1109 | struct vcpu_svm *svm = to_svm(vcpu); |
| 1110 | unsigned long val; |
| 1111 | |
| 1112 | switch (dr) { |
| 1113 | case 0 ... 3: |
| 1114 | val = vcpu->arch.db[dr]; |
| 1115 | break; |
| 1116 | case 6: |
| 1117 | if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) |
| 1118 | val = vcpu->arch.dr6; |
| 1119 | else |
| 1120 | val = svm->vmcb->save.dr6; |
| 1121 | break; |
| 1122 | case 7: |
| 1123 | if (vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP) |
| 1124 | val = vcpu->arch.dr7; |
| 1125 | else |
| 1126 | val = svm->vmcb->save.dr7; |
| 1127 | break; |
| 1128 | default: |
| 1129 | val = 0; |
| 1130 | } |
| 1131 | |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 1132 | return val; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1133 | } |
| 1134 | |
| 1135 | static void svm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long value, |
| 1136 | int *exception) |
| 1137 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1138 | struct vcpu_svm *svm = to_svm(vcpu); |
| 1139 | |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1140 | *exception = 0; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1141 | |
| 1142 | switch (dr) { |
| 1143 | case 0 ... 3: |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1144 | vcpu->arch.db[dr] = value; |
| 1145 | if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)) |
| 1146 | vcpu->arch.eff_db[dr] = value; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1147 | return; |
| 1148 | case 4 ... 5: |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1149 | if (vcpu->arch.cr4 & X86_CR4_DE) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1150 | *exception = UD_VECTOR; |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1151 | return; |
| 1152 | case 6: |
| 1153 | if (value & 0xffffffff00000000ULL) { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1154 | *exception = GP_VECTOR; |
| 1155 | return; |
| 1156 | } |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1157 | vcpu->arch.dr6 = (value & DR6_VOLATILE) | DR6_FIXED_1; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1158 | return; |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1159 | case 7: |
| 1160 | if (value & 0xffffffff00000000ULL) { |
| 1161 | *exception = GP_VECTOR; |
| 1162 | return; |
| 1163 | } |
| 1164 | vcpu->arch.dr7 = (value & DR7_VOLATILE) | DR7_FIXED_1; |
| 1165 | if (!(vcpu->guest_debug & KVM_GUESTDBG_USE_HW_BP)) { |
| 1166 | svm->vmcb->save.dr7 = vcpu->arch.dr7; |
| 1167 | vcpu->arch.switch_db_regs = (value & DR7_BP_EN_MASK); |
| 1168 | } |
| 1169 | return; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1170 | default: |
Jan Kiszka | 42dbaa5 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1171 | /* FIXME: Possible case? */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1172 | printk(KERN_DEBUG "%s: unexpected dr %u\n", |
Harvey Harrison | b8688d5 | 2008-03-03 12:59:56 -0800 | [diff] [blame] | 1173 | __func__, dr); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1174 | *exception = UD_VECTOR; |
| 1175 | return; |
| 1176 | } |
| 1177 | } |
| 1178 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1179 | static int pf_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1180 | { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1181 | u64 fault_address; |
| 1182 | u32 error_code; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1183 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1184 | fault_address = svm->vmcb->control.exit_info_2; |
| 1185 | error_code = svm->vmcb->control.exit_info_1; |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 1186 | |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 1187 | trace_kvm_page_fault(fault_address, error_code); |
Joerg Roedel | 44874f8 | 2008-08-27 14:18:43 +0200 | [diff] [blame] | 1188 | /* |
| 1189 | * FIXME: Tis shouldn't be necessary here, but there is a flush |
| 1190 | * missing in the MMU code. Until we find this bug, flush the |
| 1191 | * complete TLB here on an NPF |
| 1192 | */ |
| 1193 | if (npt_enabled) |
| 1194 | svm_flush_tlb(&svm->vcpu); |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 1195 | else { |
Gleb Natapov | 3298b75 | 2009-05-11 13:35:46 +0300 | [diff] [blame] | 1196 | if (kvm_event_needs_reinjection(&svm->vcpu)) |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 1197 | kvm_mmu_unprotect_page_virt(&svm->vcpu, fault_address); |
| 1198 | } |
Avi Kivity | 3067714 | 2007-10-28 18:48:59 +0200 | [diff] [blame] | 1199 | return kvm_mmu_page_fault(&svm->vcpu, fault_address, error_code); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1200 | } |
| 1201 | |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1202 | static int db_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1203 | { |
| 1204 | if (!(svm->vcpu.guest_debug & |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 1205 | (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)) && |
| 1206 | !svm->vcpu.arch.singlestep) { |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1207 | kvm_queue_exception(&svm->vcpu, DB_VECTOR); |
| 1208 | return 1; |
| 1209 | } |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 1210 | |
| 1211 | if (svm->vcpu.arch.singlestep) { |
| 1212 | svm->vcpu.arch.singlestep = false; |
| 1213 | if (!(svm->vcpu.guest_debug & KVM_GUESTDBG_SINGLESTEP)) |
| 1214 | svm->vmcb->save.rflags &= |
| 1215 | ~(X86_EFLAGS_TF | X86_EFLAGS_RF); |
| 1216 | update_db_intercept(&svm->vcpu); |
| 1217 | } |
| 1218 | |
| 1219 | if (svm->vcpu.guest_debug & |
| 1220 | (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)){ |
| 1221 | kvm_run->exit_reason = KVM_EXIT_DEBUG; |
| 1222 | kvm_run->debug.arch.pc = |
| 1223 | svm->vmcb->save.cs.base + svm->vmcb->save.rip; |
| 1224 | kvm_run->debug.arch.exception = DB_VECTOR; |
| 1225 | return 0; |
| 1226 | } |
| 1227 | |
| 1228 | return 1; |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 1229 | } |
| 1230 | |
| 1231 | static int bp_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1232 | { |
| 1233 | kvm_run->exit_reason = KVM_EXIT_DEBUG; |
| 1234 | kvm_run->debug.arch.pc = svm->vmcb->save.cs.base + svm->vmcb->save.rip; |
| 1235 | kvm_run->debug.arch.exception = BP_VECTOR; |
| 1236 | return 0; |
| 1237 | } |
| 1238 | |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 1239 | static int ud_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1240 | { |
| 1241 | int er; |
| 1242 | |
Sheng Yang | 571008d | 2008-01-02 14:49:22 +0800 | [diff] [blame] | 1243 | er = emulate_instruction(&svm->vcpu, kvm_run, 0, 0, EMULTYPE_TRAP_UD); |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 1244 | if (er != EMULATE_DONE) |
Avi Kivity | 7ee5d940 | 2007-11-25 15:22:50 +0200 | [diff] [blame] | 1245 | kvm_queue_exception(&svm->vcpu, UD_VECTOR); |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 1246 | return 1; |
| 1247 | } |
| 1248 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1249 | static int nm_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 1250 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1251 | svm->vmcb->control.intercept_exceptions &= ~(1 << NM_VECTOR); |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 1252 | if (!(svm->vcpu.arch.cr0 & X86_CR0_TS)) |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1253 | svm->vmcb->save.cr0 &= ~X86_CR0_TS; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1254 | svm->vcpu.fpu_active = 1; |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1255 | |
| 1256 | return 1; |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 1257 | } |
| 1258 | |
Joerg Roedel | 53371b5 | 2008-04-09 14:15:30 +0200 | [diff] [blame] | 1259 | static int mc_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1260 | { |
| 1261 | /* |
| 1262 | * On an #MC intercept the MCE handler is not called automatically in |
| 1263 | * the host. So do it by hand here. |
| 1264 | */ |
| 1265 | asm volatile ( |
| 1266 | "int $0x12\n"); |
| 1267 | /* not sure if we ever come back to this point */ |
| 1268 | |
| 1269 | return 1; |
| 1270 | } |
| 1271 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1272 | static int shutdown_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Joerg Roedel | 46fe4dd | 2007-01-26 00:56:42 -0800 | [diff] [blame] | 1273 | { |
| 1274 | /* |
| 1275 | * VMCB is undefined after a SHUTDOWN intercept |
| 1276 | * so reinitialize it. |
| 1277 | */ |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1278 | clear_page(svm->vmcb); |
Joerg Roedel | e6101a9 | 2008-02-13 18:58:45 +0100 | [diff] [blame] | 1279 | init_vmcb(svm); |
Joerg Roedel | 46fe4dd | 2007-01-26 00:56:42 -0800 | [diff] [blame] | 1280 | |
| 1281 | kvm_run->exit_reason = KVM_EXIT_SHUTDOWN; |
| 1282 | return 0; |
| 1283 | } |
| 1284 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1285 | static int io_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1286 | { |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 1287 | u32 io_info = svm->vmcb->control.exit_info_1; /* address size bug? */ |
Jan Kiszka | 34c33d1 | 2009-02-08 13:28:15 +0100 | [diff] [blame] | 1288 | int size, in, string; |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 1289 | unsigned port; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1290 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1291 | ++svm->vcpu.stat.io_exits; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1292 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 1293 | svm->next_rip = svm->vmcb->control.exit_info_2; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1294 | |
Laurent Vivier | e70669a | 2007-08-05 10:36:40 +0300 | [diff] [blame] | 1295 | string = (io_info & SVM_IOIO_STR_MASK) != 0; |
| 1296 | |
| 1297 | if (string) { |
Laurent Vivier | 3427318 | 2007-09-18 11:27:37 +0200 | [diff] [blame] | 1298 | if (emulate_instruction(&svm->vcpu, |
| 1299 | kvm_run, 0, 0, 0) == EMULATE_DO_MMIO) |
Laurent Vivier | e70669a | 2007-08-05 10:36:40 +0300 | [diff] [blame] | 1300 | return 0; |
| 1301 | return 1; |
| 1302 | } |
| 1303 | |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 1304 | in = (io_info & SVM_IOIO_TYPE_MASK) != 0; |
| 1305 | port = io_info >> 16; |
| 1306 | size = (io_info & SVM_IOIO_SIZE_MASK) >> SVM_IOIO_SIZE_SHIFT; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1307 | |
Guillaume Thouvenin | e93f36b | 2008-10-28 10:51:30 +0100 | [diff] [blame] | 1308 | skip_emulated_instruction(&svm->vcpu); |
Laurent Vivier | 3090dd7 | 2007-08-05 10:43:32 +0300 | [diff] [blame] | 1309 | return kvm_emulate_pio(&svm->vcpu, kvm_run, in, size, port); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1310 | } |
| 1311 | |
Joerg Roedel | c47f098 | 2008-04-30 17:56:00 +0200 | [diff] [blame] | 1312 | static int nmi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1313 | { |
| 1314 | return 1; |
| 1315 | } |
| 1316 | |
Joerg Roedel | a069805 | 2008-04-30 17:56:01 +0200 | [diff] [blame] | 1317 | static int intr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1318 | { |
| 1319 | ++svm->vcpu.stat.irq_exits; |
| 1320 | return 1; |
| 1321 | } |
| 1322 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1323 | static int nop_on_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1324 | { |
| 1325 | return 1; |
| 1326 | } |
| 1327 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1328 | static int halt_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1329 | { |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 1330 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 1; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1331 | skip_emulated_instruction(&svm->vcpu); |
| 1332 | return kvm_emulate_halt(&svm->vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1333 | } |
| 1334 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1335 | static int vmmcall_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 02e235b | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 1336 | { |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 1337 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1338 | skip_emulated_instruction(&svm->vcpu); |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 1339 | kvm_emulate_hypercall(&svm->vcpu); |
| 1340 | return 1; |
Avi Kivity | 02e235b | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 1341 | } |
| 1342 | |
Alexander Graf | c072542 | 2008-11-25 20:17:03 +0100 | [diff] [blame] | 1343 | static int nested_svm_check_permissions(struct vcpu_svm *svm) |
| 1344 | { |
| 1345 | if (!(svm->vcpu.arch.shadow_efer & EFER_SVME) |
| 1346 | || !is_paging(&svm->vcpu)) { |
| 1347 | kvm_queue_exception(&svm->vcpu, UD_VECTOR); |
| 1348 | return 1; |
| 1349 | } |
| 1350 | |
| 1351 | if (svm->vmcb->save.cpl) { |
| 1352 | kvm_inject_gp(&svm->vcpu, 0); |
| 1353 | return 1; |
| 1354 | } |
| 1355 | |
| 1356 | return 0; |
| 1357 | } |
| 1358 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1359 | static int nested_svm_check_exception(struct vcpu_svm *svm, unsigned nr, |
| 1360 | bool has_error_code, u32 error_code) |
| 1361 | { |
| 1362 | if (is_nested(svm)) { |
| 1363 | svm->vmcb->control.exit_code = SVM_EXIT_EXCP_BASE + nr; |
| 1364 | svm->vmcb->control.exit_code_hi = 0; |
| 1365 | svm->vmcb->control.exit_info_1 = error_code; |
| 1366 | svm->vmcb->control.exit_info_2 = svm->vcpu.arch.cr2; |
| 1367 | if (nested_svm_exit_handled(svm, false)) { |
| 1368 | nsvm_printk("VMexit -> EXCP 0x%x\n", nr); |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1369 | return 1; |
| 1370 | } |
| 1371 | } |
| 1372 | |
| 1373 | return 0; |
| 1374 | } |
| 1375 | |
| 1376 | static inline int nested_svm_intr(struct vcpu_svm *svm) |
| 1377 | { |
| 1378 | if (is_nested(svm)) { |
| 1379 | if (!(svm->vcpu.arch.hflags & HF_VINTR_MASK)) |
| 1380 | return 0; |
| 1381 | |
| 1382 | if (!(svm->vcpu.arch.hflags & HF_HIF_MASK)) |
| 1383 | return 0; |
| 1384 | |
| 1385 | svm->vmcb->control.exit_code = SVM_EXIT_INTR; |
| 1386 | |
| 1387 | if (nested_svm_exit_handled(svm, false)) { |
| 1388 | nsvm_printk("VMexit -> INTR\n"); |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1389 | return 1; |
| 1390 | } |
| 1391 | } |
| 1392 | |
| 1393 | return 0; |
| 1394 | } |
| 1395 | |
Alexander Graf | c072542 | 2008-11-25 20:17:03 +0100 | [diff] [blame] | 1396 | static struct page *nested_svm_get_page(struct vcpu_svm *svm, u64 gpa) |
| 1397 | { |
| 1398 | struct page *page; |
| 1399 | |
| 1400 | down_read(¤t->mm->mmap_sem); |
| 1401 | page = gfn_to_page(svm->vcpu.kvm, gpa >> PAGE_SHIFT); |
| 1402 | up_read(¤t->mm->mmap_sem); |
| 1403 | |
| 1404 | if (is_error_page(page)) { |
| 1405 | printk(KERN_INFO "%s: could not find page at 0x%llx\n", |
| 1406 | __func__, gpa); |
| 1407 | kvm_release_page_clean(page); |
| 1408 | kvm_inject_gp(&svm->vcpu, 0); |
| 1409 | return NULL; |
| 1410 | } |
| 1411 | return page; |
| 1412 | } |
| 1413 | |
| 1414 | static int nested_svm_do(struct vcpu_svm *svm, |
| 1415 | u64 arg1_gpa, u64 arg2_gpa, void *opaque, |
| 1416 | int (*handler)(struct vcpu_svm *svm, |
| 1417 | void *arg1, |
| 1418 | void *arg2, |
| 1419 | void *opaque)) |
| 1420 | { |
| 1421 | struct page *arg1_page; |
| 1422 | struct page *arg2_page = NULL; |
| 1423 | void *arg1; |
| 1424 | void *arg2 = NULL; |
| 1425 | int retval; |
| 1426 | |
| 1427 | arg1_page = nested_svm_get_page(svm, arg1_gpa); |
| 1428 | if(arg1_page == NULL) |
| 1429 | return 1; |
| 1430 | |
| 1431 | if (arg2_gpa) { |
| 1432 | arg2_page = nested_svm_get_page(svm, arg2_gpa); |
| 1433 | if(arg2_page == NULL) { |
| 1434 | kvm_release_page_clean(arg1_page); |
| 1435 | return 1; |
| 1436 | } |
| 1437 | } |
| 1438 | |
| 1439 | arg1 = kmap_atomic(arg1_page, KM_USER0); |
| 1440 | if (arg2_gpa) |
| 1441 | arg2 = kmap_atomic(arg2_page, KM_USER1); |
| 1442 | |
| 1443 | retval = handler(svm, arg1, arg2, opaque); |
| 1444 | |
| 1445 | kunmap_atomic(arg1, KM_USER0); |
| 1446 | if (arg2_gpa) |
| 1447 | kunmap_atomic(arg2, KM_USER1); |
| 1448 | |
| 1449 | kvm_release_page_dirty(arg1_page); |
| 1450 | if (arg2_gpa) |
| 1451 | kvm_release_page_dirty(arg2_page); |
| 1452 | |
| 1453 | return retval; |
| 1454 | } |
| 1455 | |
Joerg Roedel | 4c2161a | 2009-08-07 11:49:35 +0200 | [diff] [blame] | 1456 | static int nested_svm_exit_handled_msr(struct vcpu_svm *svm, |
| 1457 | void *arg1, void *arg2, |
| 1458 | void *opaque) |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1459 | { |
Joerg Roedel | 4c2161a | 2009-08-07 11:49:35 +0200 | [diff] [blame] | 1460 | struct vmcb *nested_vmcb = (struct vmcb *)arg1; |
| 1461 | u8 *msrpm = (u8 *)arg2; |
| 1462 | u32 t0, t1; |
| 1463 | u32 msr = svm->vcpu.arch.regs[VCPU_REGS_RCX]; |
| 1464 | u32 param = svm->vmcb->control.exit_info_1 & 1; |
| 1465 | |
| 1466 | if (!(nested_vmcb->control.intercept & (1ULL << INTERCEPT_MSR_PROT))) |
| 1467 | return 0; |
| 1468 | |
| 1469 | switch (msr) { |
| 1470 | case 0 ... 0x1fff: |
| 1471 | t0 = (msr * 2) % 8; |
| 1472 | t1 = msr / 8; |
| 1473 | break; |
| 1474 | case 0xc0000000 ... 0xc0001fff: |
| 1475 | t0 = (8192 + msr - 0xc0000000) * 2; |
| 1476 | t1 = (t0 / 8); |
| 1477 | t0 %= 8; |
| 1478 | break; |
| 1479 | case 0xc0010000 ... 0xc0011fff: |
| 1480 | t0 = (16384 + msr - 0xc0010000) * 2; |
| 1481 | t1 = (t0 / 8); |
| 1482 | t0 %= 8; |
| 1483 | break; |
| 1484 | default: |
| 1485 | return 1; |
| 1486 | break; |
| 1487 | } |
| 1488 | if (msrpm[t1] & ((1 << param) << t0)) |
| 1489 | return 1; |
| 1490 | |
| 1491 | return 0; |
| 1492 | } |
| 1493 | |
| 1494 | static int nested_svm_exit_handled(struct vcpu_svm *svm, bool kvm_override) |
| 1495 | { |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1496 | u32 exit_code = svm->vmcb->control.exit_code; |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1497 | bool vmexit = false; |
Joerg Roedel | 4c2161a | 2009-08-07 11:49:35 +0200 | [diff] [blame] | 1498 | |
| 1499 | if (kvm_override) { |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1500 | switch (exit_code) { |
| 1501 | case SVM_EXIT_INTR: |
| 1502 | case SVM_EXIT_NMI: |
| 1503 | return 0; |
| 1504 | /* For now we are always handling NPFs when using them */ |
| 1505 | case SVM_EXIT_NPF: |
| 1506 | if (npt_enabled) |
| 1507 | return 0; |
| 1508 | break; |
| 1509 | /* When we're shadowing, trap PFs */ |
| 1510 | case SVM_EXIT_EXCP_BASE + PF_VECTOR: |
| 1511 | if (!npt_enabled) |
| 1512 | return 0; |
| 1513 | break; |
| 1514 | default: |
| 1515 | break; |
| 1516 | } |
| 1517 | } |
| 1518 | |
| 1519 | switch (exit_code) { |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1520 | case SVM_EXIT_MSR: |
| 1521 | if (nested_svm_do(svm, svm->nested.vmcb, svm->nested.vmcb_msrpm, |
| 1522 | NULL, nested_svm_exit_handled_msr)) |
| 1523 | vmexit = true; |
| 1524 | break; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1525 | case SVM_EXIT_READ_CR0 ... SVM_EXIT_READ_CR8: { |
| 1526 | u32 cr_bits = 1 << (exit_code - SVM_EXIT_READ_CR0); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1527 | if (svm->nested.intercept_cr_read & cr_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1528 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1529 | break; |
| 1530 | } |
| 1531 | case SVM_EXIT_WRITE_CR0 ... SVM_EXIT_WRITE_CR8: { |
| 1532 | u32 cr_bits = 1 << (exit_code - SVM_EXIT_WRITE_CR0); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1533 | if (svm->nested.intercept_cr_write & cr_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1534 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1535 | break; |
| 1536 | } |
| 1537 | case SVM_EXIT_READ_DR0 ... SVM_EXIT_READ_DR7: { |
| 1538 | u32 dr_bits = 1 << (exit_code - SVM_EXIT_READ_DR0); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1539 | if (svm->nested.intercept_dr_read & dr_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1540 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1541 | break; |
| 1542 | } |
| 1543 | case SVM_EXIT_WRITE_DR0 ... SVM_EXIT_WRITE_DR7: { |
| 1544 | u32 dr_bits = 1 << (exit_code - SVM_EXIT_WRITE_DR0); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1545 | if (svm->nested.intercept_dr_write & dr_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1546 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1547 | break; |
| 1548 | } |
| 1549 | case SVM_EXIT_EXCP_BASE ... SVM_EXIT_EXCP_BASE + 0x1f: { |
| 1550 | u32 excp_bits = 1 << (exit_code - SVM_EXIT_EXCP_BASE); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1551 | if (svm->nested.intercept_exceptions & excp_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1552 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1553 | break; |
| 1554 | } |
| 1555 | default: { |
| 1556 | u64 exit_bits = 1ULL << (exit_code - SVM_EXIT_INTR); |
| 1557 | nsvm_printk("exit code: 0x%x\n", exit_code); |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1558 | if (svm->nested.intercept & exit_bits) |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1559 | vmexit = true; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1560 | } |
| 1561 | } |
| 1562 | |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 1563 | if (vmexit) { |
| 1564 | nsvm_printk("#VMEXIT reason=%04x\n", exit_code); |
| 1565 | nested_svm_vmexit(svm); |
| 1566 | } |
| 1567 | |
| 1568 | return vmexit; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1569 | } |
| 1570 | |
Joerg Roedel | 0460a97 | 2009-08-07 11:49:31 +0200 | [diff] [blame] | 1571 | static inline void copy_vmcb_control_area(struct vmcb *dst_vmcb, struct vmcb *from_vmcb) |
| 1572 | { |
| 1573 | struct vmcb_control_area *dst = &dst_vmcb->control; |
| 1574 | struct vmcb_control_area *from = &from_vmcb->control; |
| 1575 | |
| 1576 | dst->intercept_cr_read = from->intercept_cr_read; |
| 1577 | dst->intercept_cr_write = from->intercept_cr_write; |
| 1578 | dst->intercept_dr_read = from->intercept_dr_read; |
| 1579 | dst->intercept_dr_write = from->intercept_dr_write; |
| 1580 | dst->intercept_exceptions = from->intercept_exceptions; |
| 1581 | dst->intercept = from->intercept; |
| 1582 | dst->iopm_base_pa = from->iopm_base_pa; |
| 1583 | dst->msrpm_base_pa = from->msrpm_base_pa; |
| 1584 | dst->tsc_offset = from->tsc_offset; |
| 1585 | dst->asid = from->asid; |
| 1586 | dst->tlb_ctl = from->tlb_ctl; |
| 1587 | dst->int_ctl = from->int_ctl; |
| 1588 | dst->int_vector = from->int_vector; |
| 1589 | dst->int_state = from->int_state; |
| 1590 | dst->exit_code = from->exit_code; |
| 1591 | dst->exit_code_hi = from->exit_code_hi; |
| 1592 | dst->exit_info_1 = from->exit_info_1; |
| 1593 | dst->exit_info_2 = from->exit_info_2; |
| 1594 | dst->exit_int_info = from->exit_int_info; |
| 1595 | dst->exit_int_info_err = from->exit_int_info_err; |
| 1596 | dst->nested_ctl = from->nested_ctl; |
| 1597 | dst->event_inj = from->event_inj; |
| 1598 | dst->event_inj_err = from->event_inj_err; |
| 1599 | dst->nested_cr3 = from->nested_cr3; |
| 1600 | dst->lbr_ctl = from->lbr_ctl; |
| 1601 | } |
| 1602 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1603 | static int nested_svm_vmexit_real(struct vcpu_svm *svm, void *arg1, |
| 1604 | void *arg2, void *opaque) |
| 1605 | { |
| 1606 | struct vmcb *nested_vmcb = (struct vmcb *)arg1; |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1607 | struct vmcb *hsave = svm->nested.hsave; |
Joerg Roedel | 33740e4 | 2009-08-07 11:49:29 +0200 | [diff] [blame] | 1608 | struct vmcb *vmcb = svm->vmcb; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1609 | |
| 1610 | /* Give the current vmcb to the guest */ |
Joerg Roedel | 33740e4 | 2009-08-07 11:49:29 +0200 | [diff] [blame] | 1611 | disable_gif(svm); |
| 1612 | |
| 1613 | nested_vmcb->save.es = vmcb->save.es; |
| 1614 | nested_vmcb->save.cs = vmcb->save.cs; |
| 1615 | nested_vmcb->save.ss = vmcb->save.ss; |
| 1616 | nested_vmcb->save.ds = vmcb->save.ds; |
| 1617 | nested_vmcb->save.gdtr = vmcb->save.gdtr; |
| 1618 | nested_vmcb->save.idtr = vmcb->save.idtr; |
| 1619 | if (npt_enabled) |
| 1620 | nested_vmcb->save.cr3 = vmcb->save.cr3; |
| 1621 | nested_vmcb->save.cr2 = vmcb->save.cr2; |
| 1622 | nested_vmcb->save.rflags = vmcb->save.rflags; |
| 1623 | nested_vmcb->save.rip = vmcb->save.rip; |
| 1624 | nested_vmcb->save.rsp = vmcb->save.rsp; |
| 1625 | nested_vmcb->save.rax = vmcb->save.rax; |
| 1626 | nested_vmcb->save.dr7 = vmcb->save.dr7; |
| 1627 | nested_vmcb->save.dr6 = vmcb->save.dr6; |
| 1628 | nested_vmcb->save.cpl = vmcb->save.cpl; |
| 1629 | |
| 1630 | nested_vmcb->control.int_ctl = vmcb->control.int_ctl; |
| 1631 | nested_vmcb->control.int_vector = vmcb->control.int_vector; |
| 1632 | nested_vmcb->control.int_state = vmcb->control.int_state; |
| 1633 | nested_vmcb->control.exit_code = vmcb->control.exit_code; |
| 1634 | nested_vmcb->control.exit_code_hi = vmcb->control.exit_code_hi; |
| 1635 | nested_vmcb->control.exit_info_1 = vmcb->control.exit_info_1; |
| 1636 | nested_vmcb->control.exit_info_2 = vmcb->control.exit_info_2; |
| 1637 | nested_vmcb->control.exit_int_info = vmcb->control.exit_int_info; |
| 1638 | nested_vmcb->control.exit_int_info_err = vmcb->control.exit_int_info_err; |
| 1639 | nested_vmcb->control.tlb_ctl = 0; |
| 1640 | nested_vmcb->control.event_inj = 0; |
| 1641 | nested_vmcb->control.event_inj_err = 0; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1642 | |
| 1643 | /* We always set V_INTR_MASKING and remember the old value in hflags */ |
| 1644 | if (!(svm->vcpu.arch.hflags & HF_VINTR_MASK)) |
| 1645 | nested_vmcb->control.int_ctl &= ~V_INTR_MASKING_MASK; |
| 1646 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1647 | /* Restore the original control entries */ |
Joerg Roedel | 0460a97 | 2009-08-07 11:49:31 +0200 | [diff] [blame] | 1648 | copy_vmcb_control_area(vmcb, hsave); |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1649 | |
| 1650 | /* Kill any pending exceptions */ |
| 1651 | if (svm->vcpu.arch.exception.pending == true) |
| 1652 | nsvm_printk("WARNING: Pending Exception\n"); |
Joerg Roedel | 33740e4 | 2009-08-07 11:49:29 +0200 | [diff] [blame] | 1653 | |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 1654 | kvm_clear_exception_queue(&svm->vcpu); |
| 1655 | kvm_clear_interrupt_queue(&svm->vcpu); |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1656 | |
| 1657 | /* Restore selected save entries */ |
| 1658 | svm->vmcb->save.es = hsave->save.es; |
| 1659 | svm->vmcb->save.cs = hsave->save.cs; |
| 1660 | svm->vmcb->save.ss = hsave->save.ss; |
| 1661 | svm->vmcb->save.ds = hsave->save.ds; |
| 1662 | svm->vmcb->save.gdtr = hsave->save.gdtr; |
| 1663 | svm->vmcb->save.idtr = hsave->save.idtr; |
| 1664 | svm->vmcb->save.rflags = hsave->save.rflags; |
| 1665 | svm_set_efer(&svm->vcpu, hsave->save.efer); |
| 1666 | svm_set_cr0(&svm->vcpu, hsave->save.cr0 | X86_CR0_PE); |
| 1667 | svm_set_cr4(&svm->vcpu, hsave->save.cr4); |
| 1668 | if (npt_enabled) { |
| 1669 | svm->vmcb->save.cr3 = hsave->save.cr3; |
| 1670 | svm->vcpu.arch.cr3 = hsave->save.cr3; |
| 1671 | } else { |
| 1672 | kvm_set_cr3(&svm->vcpu, hsave->save.cr3); |
| 1673 | } |
| 1674 | kvm_register_write(&svm->vcpu, VCPU_REGS_RAX, hsave->save.rax); |
| 1675 | kvm_register_write(&svm->vcpu, VCPU_REGS_RSP, hsave->save.rsp); |
| 1676 | kvm_register_write(&svm->vcpu, VCPU_REGS_RIP, hsave->save.rip); |
| 1677 | svm->vmcb->save.dr7 = 0; |
| 1678 | svm->vmcb->save.cpl = 0; |
| 1679 | svm->vmcb->control.exit_int_info = 0; |
| 1680 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1681 | /* Exit nested SVM mode */ |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1682 | svm->nested.vmcb = 0; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1683 | |
| 1684 | return 0; |
| 1685 | } |
| 1686 | |
| 1687 | static int nested_svm_vmexit(struct vcpu_svm *svm) |
| 1688 | { |
| 1689 | nsvm_printk("VMexit\n"); |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1690 | if (nested_svm_do(svm, svm->nested.vmcb, 0, |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 1691 | NULL, nested_svm_vmexit_real)) |
| 1692 | return 1; |
| 1693 | |
| 1694 | kvm_mmu_reset_context(&svm->vcpu); |
| 1695 | kvm_mmu_load(&svm->vcpu); |
| 1696 | |
| 1697 | return 0; |
| 1698 | } |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1699 | |
| 1700 | static int nested_svm_vmrun_msrpm(struct vcpu_svm *svm, void *arg1, |
| 1701 | void *arg2, void *opaque) |
| 1702 | { |
| 1703 | int i; |
| 1704 | u32 *nested_msrpm = (u32*)arg1; |
| 1705 | for (i=0; i< PAGE_SIZE * (1 << MSRPM_ALLOC_ORDER) / 4; i++) |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1706 | svm->nested.msrpm[i] = svm->msrpm[i] | nested_msrpm[i]; |
| 1707 | svm->vmcb->control.msrpm_base_pa = __pa(svm->nested.msrpm); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1708 | |
| 1709 | return 0; |
| 1710 | } |
| 1711 | |
| 1712 | static int nested_svm_vmrun(struct vcpu_svm *svm, void *arg1, |
| 1713 | void *arg2, void *opaque) |
| 1714 | { |
| 1715 | struct vmcb *nested_vmcb = (struct vmcb *)arg1; |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1716 | struct vmcb *hsave = svm->nested.hsave; |
Joerg Roedel | defbba5 | 2009-08-07 11:49:30 +0200 | [diff] [blame] | 1717 | struct vmcb *vmcb = svm->vmcb; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1718 | |
| 1719 | /* nested_vmcb is our indicator if nested SVM is activated */ |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1720 | svm->nested.vmcb = svm->vmcb->save.rax; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1721 | |
| 1722 | /* Clear internal status */ |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 1723 | kvm_clear_exception_queue(&svm->vcpu); |
| 1724 | kvm_clear_interrupt_queue(&svm->vcpu); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1725 | |
| 1726 | /* Save the old vmcb, so we don't need to pick what we save, but |
| 1727 | can restore everything when a VMEXIT occurs */ |
Joerg Roedel | defbba5 | 2009-08-07 11:49:30 +0200 | [diff] [blame] | 1728 | hsave->save.es = vmcb->save.es; |
| 1729 | hsave->save.cs = vmcb->save.cs; |
| 1730 | hsave->save.ss = vmcb->save.ss; |
| 1731 | hsave->save.ds = vmcb->save.ds; |
| 1732 | hsave->save.gdtr = vmcb->save.gdtr; |
| 1733 | hsave->save.idtr = vmcb->save.idtr; |
| 1734 | hsave->save.efer = svm->vcpu.arch.shadow_efer; |
| 1735 | hsave->save.cr0 = svm->vcpu.arch.cr0; |
| 1736 | hsave->save.cr4 = svm->vcpu.arch.cr4; |
| 1737 | hsave->save.rflags = vmcb->save.rflags; |
| 1738 | hsave->save.rip = svm->next_rip; |
| 1739 | hsave->save.rsp = vmcb->save.rsp; |
| 1740 | hsave->save.rax = vmcb->save.rax; |
| 1741 | if (npt_enabled) |
| 1742 | hsave->save.cr3 = vmcb->save.cr3; |
| 1743 | else |
| 1744 | hsave->save.cr3 = svm->vcpu.arch.cr3; |
| 1745 | |
Joerg Roedel | 0460a97 | 2009-08-07 11:49:31 +0200 | [diff] [blame] | 1746 | copy_vmcb_control_area(hsave, vmcb); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1747 | |
| 1748 | if (svm->vmcb->save.rflags & X86_EFLAGS_IF) |
| 1749 | svm->vcpu.arch.hflags |= HF_HIF_MASK; |
| 1750 | else |
| 1751 | svm->vcpu.arch.hflags &= ~HF_HIF_MASK; |
| 1752 | |
| 1753 | /* Load the nested guest state */ |
| 1754 | svm->vmcb->save.es = nested_vmcb->save.es; |
| 1755 | svm->vmcb->save.cs = nested_vmcb->save.cs; |
| 1756 | svm->vmcb->save.ss = nested_vmcb->save.ss; |
| 1757 | svm->vmcb->save.ds = nested_vmcb->save.ds; |
| 1758 | svm->vmcb->save.gdtr = nested_vmcb->save.gdtr; |
| 1759 | svm->vmcb->save.idtr = nested_vmcb->save.idtr; |
| 1760 | svm->vmcb->save.rflags = nested_vmcb->save.rflags; |
| 1761 | svm_set_efer(&svm->vcpu, nested_vmcb->save.efer); |
| 1762 | svm_set_cr0(&svm->vcpu, nested_vmcb->save.cr0); |
| 1763 | svm_set_cr4(&svm->vcpu, nested_vmcb->save.cr4); |
| 1764 | if (npt_enabled) { |
| 1765 | svm->vmcb->save.cr3 = nested_vmcb->save.cr3; |
| 1766 | svm->vcpu.arch.cr3 = nested_vmcb->save.cr3; |
| 1767 | } else { |
| 1768 | kvm_set_cr3(&svm->vcpu, nested_vmcb->save.cr3); |
| 1769 | kvm_mmu_reset_context(&svm->vcpu); |
| 1770 | } |
Joerg Roedel | defbba5 | 2009-08-07 11:49:30 +0200 | [diff] [blame] | 1771 | svm->vmcb->save.cr2 = svm->vcpu.arch.cr2 = nested_vmcb->save.cr2; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1772 | kvm_register_write(&svm->vcpu, VCPU_REGS_RAX, nested_vmcb->save.rax); |
| 1773 | kvm_register_write(&svm->vcpu, VCPU_REGS_RSP, nested_vmcb->save.rsp); |
| 1774 | kvm_register_write(&svm->vcpu, VCPU_REGS_RIP, nested_vmcb->save.rip); |
| 1775 | /* In case we don't even reach vcpu_run, the fields are not updated */ |
| 1776 | svm->vmcb->save.rax = nested_vmcb->save.rax; |
| 1777 | svm->vmcb->save.rsp = nested_vmcb->save.rsp; |
| 1778 | svm->vmcb->save.rip = nested_vmcb->save.rip; |
| 1779 | svm->vmcb->save.dr7 = nested_vmcb->save.dr7; |
| 1780 | svm->vmcb->save.dr6 = nested_vmcb->save.dr6; |
| 1781 | svm->vmcb->save.cpl = nested_vmcb->save.cpl; |
| 1782 | |
| 1783 | /* We don't want a nested guest to be more powerful than the guest, |
| 1784 | so all intercepts are ORed */ |
| 1785 | svm->vmcb->control.intercept_cr_read |= |
| 1786 | nested_vmcb->control.intercept_cr_read; |
| 1787 | svm->vmcb->control.intercept_cr_write |= |
| 1788 | nested_vmcb->control.intercept_cr_write; |
| 1789 | svm->vmcb->control.intercept_dr_read |= |
| 1790 | nested_vmcb->control.intercept_dr_read; |
| 1791 | svm->vmcb->control.intercept_dr_write |= |
| 1792 | nested_vmcb->control.intercept_dr_write; |
| 1793 | svm->vmcb->control.intercept_exceptions |= |
| 1794 | nested_vmcb->control.intercept_exceptions; |
| 1795 | |
| 1796 | svm->vmcb->control.intercept |= nested_vmcb->control.intercept; |
| 1797 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1798 | svm->nested.vmcb_msrpm = nested_vmcb->control.msrpm_base_pa; |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1799 | |
Joerg Roedel | aad42c6 | 2009-08-07 11:49:34 +0200 | [diff] [blame] | 1800 | /* cache intercepts */ |
| 1801 | svm->nested.intercept_cr_read = nested_vmcb->control.intercept_cr_read; |
| 1802 | svm->nested.intercept_cr_write = nested_vmcb->control.intercept_cr_write; |
| 1803 | svm->nested.intercept_dr_read = nested_vmcb->control.intercept_dr_read; |
| 1804 | svm->nested.intercept_dr_write = nested_vmcb->control.intercept_dr_write; |
| 1805 | svm->nested.intercept_exceptions = nested_vmcb->control.intercept_exceptions; |
| 1806 | svm->nested.intercept = nested_vmcb->control.intercept; |
| 1807 | |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1808 | force_new_asid(&svm->vcpu); |
| 1809 | svm->vmcb->control.exit_int_info = nested_vmcb->control.exit_int_info; |
| 1810 | svm->vmcb->control.exit_int_info_err = nested_vmcb->control.exit_int_info_err; |
| 1811 | svm->vmcb->control.int_ctl = nested_vmcb->control.int_ctl | V_INTR_MASKING_MASK; |
| 1812 | if (nested_vmcb->control.int_ctl & V_IRQ_MASK) { |
| 1813 | nsvm_printk("nSVM Injecting Interrupt: 0x%x\n", |
| 1814 | nested_vmcb->control.int_ctl); |
| 1815 | } |
| 1816 | if (nested_vmcb->control.int_ctl & V_INTR_MASKING_MASK) |
| 1817 | svm->vcpu.arch.hflags |= HF_VINTR_MASK; |
| 1818 | else |
| 1819 | svm->vcpu.arch.hflags &= ~HF_VINTR_MASK; |
| 1820 | |
| 1821 | nsvm_printk("nSVM exit_int_info: 0x%x | int_state: 0x%x\n", |
| 1822 | nested_vmcb->control.exit_int_info, |
| 1823 | nested_vmcb->control.int_state); |
| 1824 | |
| 1825 | svm->vmcb->control.int_vector = nested_vmcb->control.int_vector; |
| 1826 | svm->vmcb->control.int_state = nested_vmcb->control.int_state; |
| 1827 | svm->vmcb->control.tsc_offset += nested_vmcb->control.tsc_offset; |
| 1828 | if (nested_vmcb->control.event_inj & SVM_EVTINJ_VALID) |
| 1829 | nsvm_printk("Injecting Event: 0x%x\n", |
| 1830 | nested_vmcb->control.event_inj); |
| 1831 | svm->vmcb->control.event_inj = nested_vmcb->control.event_inj; |
| 1832 | svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err; |
| 1833 | |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 1834 | enable_gif(svm); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1835 | |
| 1836 | return 0; |
| 1837 | } |
| 1838 | |
Alexander Graf | 5542675 | 2008-11-25 20:17:06 +0100 | [diff] [blame] | 1839 | static int nested_svm_vmloadsave(struct vmcb *from_vmcb, struct vmcb *to_vmcb) |
| 1840 | { |
| 1841 | to_vmcb->save.fs = from_vmcb->save.fs; |
| 1842 | to_vmcb->save.gs = from_vmcb->save.gs; |
| 1843 | to_vmcb->save.tr = from_vmcb->save.tr; |
| 1844 | to_vmcb->save.ldtr = from_vmcb->save.ldtr; |
| 1845 | to_vmcb->save.kernel_gs_base = from_vmcb->save.kernel_gs_base; |
| 1846 | to_vmcb->save.star = from_vmcb->save.star; |
| 1847 | to_vmcb->save.lstar = from_vmcb->save.lstar; |
| 1848 | to_vmcb->save.cstar = from_vmcb->save.cstar; |
| 1849 | to_vmcb->save.sfmask = from_vmcb->save.sfmask; |
| 1850 | to_vmcb->save.sysenter_cs = from_vmcb->save.sysenter_cs; |
| 1851 | to_vmcb->save.sysenter_esp = from_vmcb->save.sysenter_esp; |
| 1852 | to_vmcb->save.sysenter_eip = from_vmcb->save.sysenter_eip; |
| 1853 | |
| 1854 | return 1; |
| 1855 | } |
| 1856 | |
| 1857 | static int nested_svm_vmload(struct vcpu_svm *svm, void *nested_vmcb, |
| 1858 | void *arg2, void *opaque) |
| 1859 | { |
| 1860 | return nested_svm_vmloadsave((struct vmcb *)nested_vmcb, svm->vmcb); |
| 1861 | } |
| 1862 | |
| 1863 | static int nested_svm_vmsave(struct vcpu_svm *svm, void *nested_vmcb, |
| 1864 | void *arg2, void *opaque) |
| 1865 | { |
| 1866 | return nested_svm_vmloadsave(svm->vmcb, (struct vmcb *)nested_vmcb); |
| 1867 | } |
| 1868 | |
| 1869 | static int vmload_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1870 | { |
| 1871 | if (nested_svm_check_permissions(svm)) |
| 1872 | return 1; |
| 1873 | |
| 1874 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1875 | skip_emulated_instruction(&svm->vcpu); |
| 1876 | |
| 1877 | nested_svm_do(svm, svm->vmcb->save.rax, 0, NULL, nested_svm_vmload); |
| 1878 | |
| 1879 | return 1; |
| 1880 | } |
| 1881 | |
| 1882 | static int vmsave_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1883 | { |
| 1884 | if (nested_svm_check_permissions(svm)) |
| 1885 | return 1; |
| 1886 | |
| 1887 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1888 | skip_emulated_instruction(&svm->vcpu); |
| 1889 | |
| 1890 | nested_svm_do(svm, svm->vmcb->save.rax, 0, NULL, nested_svm_vmsave); |
| 1891 | |
| 1892 | return 1; |
| 1893 | } |
| 1894 | |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1895 | static int vmrun_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1896 | { |
| 1897 | nsvm_printk("VMrun\n"); |
| 1898 | if (nested_svm_check_permissions(svm)) |
| 1899 | return 1; |
| 1900 | |
| 1901 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1902 | skip_emulated_instruction(&svm->vcpu); |
| 1903 | |
| 1904 | if (nested_svm_do(svm, svm->vmcb->save.rax, 0, |
| 1905 | NULL, nested_svm_vmrun)) |
| 1906 | return 1; |
| 1907 | |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 1908 | if (nested_svm_do(svm, svm->nested.vmcb_msrpm, 0, |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 1909 | NULL, nested_svm_vmrun_msrpm)) |
| 1910 | return 1; |
| 1911 | |
| 1912 | return 1; |
| 1913 | } |
| 1914 | |
Alexander Graf | 1371d90 | 2008-11-25 20:17:04 +0100 | [diff] [blame] | 1915 | static int stgi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1916 | { |
| 1917 | if (nested_svm_check_permissions(svm)) |
| 1918 | return 1; |
| 1919 | |
| 1920 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1921 | skip_emulated_instruction(&svm->vcpu); |
| 1922 | |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 1923 | enable_gif(svm); |
Alexander Graf | 1371d90 | 2008-11-25 20:17:04 +0100 | [diff] [blame] | 1924 | |
| 1925 | return 1; |
| 1926 | } |
| 1927 | |
| 1928 | static int clgi_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1929 | { |
| 1930 | if (nested_svm_check_permissions(svm)) |
| 1931 | return 1; |
| 1932 | |
| 1933 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1934 | skip_emulated_instruction(&svm->vcpu); |
| 1935 | |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 1936 | disable_gif(svm); |
Alexander Graf | 1371d90 | 2008-11-25 20:17:04 +0100 | [diff] [blame] | 1937 | |
| 1938 | /* After a CLGI no interrupts should come */ |
| 1939 | svm_clear_vintr(svm); |
| 1940 | svm->vmcb->control.int_ctl &= ~V_IRQ_MASK; |
| 1941 | |
| 1942 | return 1; |
| 1943 | } |
| 1944 | |
Alexander Graf | ff09238 | 2009-06-15 15:21:24 +0200 | [diff] [blame] | 1945 | static int invlpga_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 1946 | { |
| 1947 | struct kvm_vcpu *vcpu = &svm->vcpu; |
| 1948 | nsvm_printk("INVLPGA\n"); |
| 1949 | |
| 1950 | /* Let's treat INVLPGA the same as INVLPG (can be optimized!) */ |
| 1951 | kvm_mmu_invlpg(vcpu, vcpu->arch.regs[VCPU_REGS_RAX]); |
| 1952 | |
| 1953 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 3; |
| 1954 | skip_emulated_instruction(&svm->vcpu); |
| 1955 | return 1; |
| 1956 | } |
| 1957 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1958 | static int invalid_op_interception(struct vcpu_svm *svm, |
| 1959 | struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1960 | { |
Avi Kivity | 7ee5d940 | 2007-11-25 15:22:50 +0200 | [diff] [blame] | 1961 | kvm_queue_exception(&svm->vcpu, UD_VECTOR); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1962 | return 1; |
| 1963 | } |
| 1964 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 1965 | static int task_switch_interception(struct vcpu_svm *svm, |
| 1966 | struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1967 | { |
Izik Eidus | 37817f2 | 2008-03-24 23:14:53 +0200 | [diff] [blame] | 1968 | u16 tss_selector; |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 1969 | int reason; |
| 1970 | int int_type = svm->vmcb->control.exit_int_info & |
| 1971 | SVM_EXITINTINFO_TYPE_MASK; |
Gleb Natapov | 8317c29 | 2009-04-12 13:37:02 +0300 | [diff] [blame] | 1972 | int int_vec = svm->vmcb->control.exit_int_info & SVM_EVTINJ_VEC_MASK; |
Gleb Natapov | fe8e7f8 | 2009-04-23 17:03:48 +0300 | [diff] [blame] | 1973 | uint32_t type = |
| 1974 | svm->vmcb->control.exit_int_info & SVM_EXITINTINFO_TYPE_MASK; |
| 1975 | uint32_t idt_v = |
| 1976 | svm->vmcb->control.exit_int_info & SVM_EXITINTINFO_VALID; |
Izik Eidus | 37817f2 | 2008-03-24 23:14:53 +0200 | [diff] [blame] | 1977 | |
| 1978 | tss_selector = (u16)svm->vmcb->control.exit_info_1; |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 1979 | |
Izik Eidus | 37817f2 | 2008-03-24 23:14:53 +0200 | [diff] [blame] | 1980 | if (svm->vmcb->control.exit_info_2 & |
| 1981 | (1ULL << SVM_EXITINFOSHIFT_TS_REASON_IRET)) |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 1982 | reason = TASK_SWITCH_IRET; |
| 1983 | else if (svm->vmcb->control.exit_info_2 & |
| 1984 | (1ULL << SVM_EXITINFOSHIFT_TS_REASON_JMP)) |
| 1985 | reason = TASK_SWITCH_JMP; |
Gleb Natapov | fe8e7f8 | 2009-04-23 17:03:48 +0300 | [diff] [blame] | 1986 | else if (idt_v) |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 1987 | reason = TASK_SWITCH_GATE; |
| 1988 | else |
| 1989 | reason = TASK_SWITCH_CALL; |
| 1990 | |
Gleb Natapov | fe8e7f8 | 2009-04-23 17:03:48 +0300 | [diff] [blame] | 1991 | if (reason == TASK_SWITCH_GATE) { |
| 1992 | switch (type) { |
| 1993 | case SVM_EXITINTINFO_TYPE_NMI: |
| 1994 | svm->vcpu.arch.nmi_injected = false; |
| 1995 | break; |
| 1996 | case SVM_EXITINTINFO_TYPE_EXEPT: |
| 1997 | kvm_clear_exception_queue(&svm->vcpu); |
| 1998 | break; |
| 1999 | case SVM_EXITINTINFO_TYPE_INTR: |
| 2000 | kvm_clear_interrupt_queue(&svm->vcpu); |
| 2001 | break; |
| 2002 | default: |
| 2003 | break; |
| 2004 | } |
| 2005 | } |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 2006 | |
Gleb Natapov | 8317c29 | 2009-04-12 13:37:02 +0300 | [diff] [blame] | 2007 | if (reason != TASK_SWITCH_GATE || |
| 2008 | int_type == SVM_EXITINTINFO_TYPE_SOFT || |
| 2009 | (int_type == SVM_EXITINTINFO_TYPE_EXEPT && |
Gleb Natapov | f629cf8 | 2009-05-11 13:35:49 +0300 | [diff] [blame] | 2010 | (int_vec == OF_VECTOR || int_vec == BP_VECTOR))) |
| 2011 | skip_emulated_instruction(&svm->vcpu); |
Gleb Natapov | 64a7ec0 | 2009-03-30 16:03:29 +0300 | [diff] [blame] | 2012 | |
| 2013 | return kvm_task_switch(&svm->vcpu, tss_selector, reason); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2014 | } |
| 2015 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2016 | static int cpuid_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2017 | { |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2018 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 2; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2019 | kvm_emulate_cpuid(&svm->vcpu); |
Avi Kivity | 06465c5 | 2007-02-28 20:46:53 +0200 | [diff] [blame] | 2020 | return 1; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2021 | } |
| 2022 | |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2023 | static int iret_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 2024 | { |
| 2025 | ++svm->vcpu.stat.nmi_window_exits; |
| 2026 | svm->vmcb->control.intercept &= ~(1UL << INTERCEPT_IRET); |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 2027 | svm->vcpu.arch.hflags |= HF_IRET_MASK; |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2028 | return 1; |
| 2029 | } |
| 2030 | |
Marcelo Tosatti | a705289 | 2008-09-23 13:18:35 -0300 | [diff] [blame] | 2031 | static int invlpg_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 2032 | { |
| 2033 | if (emulate_instruction(&svm->vcpu, kvm_run, 0, 0, 0) != EMULATE_DONE) |
| 2034 | pr_unimpl(&svm->vcpu, "%s: failed\n", __func__); |
| 2035 | return 1; |
| 2036 | } |
| 2037 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2038 | static int emulate_on_interception(struct vcpu_svm *svm, |
| 2039 | struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2040 | { |
Laurent Vivier | 3427318 | 2007-09-18 11:27:37 +0200 | [diff] [blame] | 2041 | if (emulate_instruction(&svm->vcpu, NULL, 0, 0, 0) != EMULATE_DONE) |
Harvey Harrison | b8688d5 | 2008-03-03 12:59:56 -0800 | [diff] [blame] | 2042 | pr_unimpl(&svm->vcpu, "%s: failed\n", __func__); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2043 | return 1; |
| 2044 | } |
| 2045 | |
Joerg Roedel | 1d07543 | 2007-12-06 21:02:25 +0100 | [diff] [blame] | 2046 | static int cr8_write_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
| 2047 | { |
Gleb Natapov | 0a5fff19 | 2009-04-21 17:45:06 +0300 | [diff] [blame] | 2048 | u8 cr8_prev = kvm_get_cr8(&svm->vcpu); |
| 2049 | /* instruction emulation calls kvm_set_cr8() */ |
Joerg Roedel | 1d07543 | 2007-12-06 21:02:25 +0100 | [diff] [blame] | 2050 | emulate_instruction(&svm->vcpu, NULL, 0, 0, 0); |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2051 | if (irqchip_in_kernel(svm->vcpu.kvm)) { |
| 2052 | svm->vmcb->control.intercept_cr_write &= ~INTERCEPT_CR8_MASK; |
Joerg Roedel | 1d07543 | 2007-12-06 21:02:25 +0100 | [diff] [blame] | 2053 | return 1; |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2054 | } |
Gleb Natapov | 0a5fff19 | 2009-04-21 17:45:06 +0300 | [diff] [blame] | 2055 | if (cr8_prev <= kvm_get_cr8(&svm->vcpu)) |
| 2056 | return 1; |
Joerg Roedel | 1d07543 | 2007-12-06 21:02:25 +0100 | [diff] [blame] | 2057 | kvm_run->exit_reason = KVM_EXIT_SET_TPR; |
| 2058 | return 0; |
| 2059 | } |
| 2060 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2061 | static int svm_get_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 *data) |
| 2062 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2063 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2064 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2065 | switch (ecx) { |
Jaswinder Singh Rajput | af24a4e | 2009-05-15 18:42:05 +0530 | [diff] [blame] | 2066 | case MSR_IA32_TSC: { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2067 | u64 tsc; |
| 2068 | |
| 2069 | rdtscll(tsc); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2070 | *data = svm->vmcb->control.tsc_offset + tsc; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2071 | break; |
| 2072 | } |
Avi Kivity | 0e859ca | 2006-12-22 01:05:08 -0800 | [diff] [blame] | 2073 | case MSR_K6_STAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2074 | *data = svm->vmcb->save.star; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2075 | break; |
Avi Kivity | 0e859ca | 2006-12-22 01:05:08 -0800 | [diff] [blame] | 2076 | #ifdef CONFIG_X86_64 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2077 | case MSR_LSTAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2078 | *data = svm->vmcb->save.lstar; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2079 | break; |
| 2080 | case MSR_CSTAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2081 | *data = svm->vmcb->save.cstar; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2082 | break; |
| 2083 | case MSR_KERNEL_GS_BASE: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2084 | *data = svm->vmcb->save.kernel_gs_base; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2085 | break; |
| 2086 | case MSR_SYSCALL_MASK: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2087 | *data = svm->vmcb->save.sfmask; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2088 | break; |
| 2089 | #endif |
| 2090 | case MSR_IA32_SYSENTER_CS: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2091 | *data = svm->vmcb->save.sysenter_cs; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2092 | break; |
| 2093 | case MSR_IA32_SYSENTER_EIP: |
Andre Przywara | 017cb99 | 2009-05-28 11:56:31 +0200 | [diff] [blame] | 2094 | *data = svm->sysenter_eip; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2095 | break; |
| 2096 | case MSR_IA32_SYSENTER_ESP: |
Andre Przywara | 017cb99 | 2009-05-28 11:56:31 +0200 | [diff] [blame] | 2097 | *data = svm->sysenter_esp; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2098 | break; |
Joerg Roedel | a2938c8 | 2008-02-13 16:30:28 +0100 | [diff] [blame] | 2099 | /* Nobody will change the following 5 values in the VMCB so |
| 2100 | we can safely return them on rdmsr. They will always be 0 |
| 2101 | until LBRV is implemented. */ |
| 2102 | case MSR_IA32_DEBUGCTLMSR: |
| 2103 | *data = svm->vmcb->save.dbgctl; |
| 2104 | break; |
| 2105 | case MSR_IA32_LASTBRANCHFROMIP: |
| 2106 | *data = svm->vmcb->save.br_from; |
| 2107 | break; |
| 2108 | case MSR_IA32_LASTBRANCHTOIP: |
| 2109 | *data = svm->vmcb->save.br_to; |
| 2110 | break; |
| 2111 | case MSR_IA32_LASTINTFROMIP: |
| 2112 | *data = svm->vmcb->save.last_excp_from; |
| 2113 | break; |
| 2114 | case MSR_IA32_LASTINTTOIP: |
| 2115 | *data = svm->vmcb->save.last_excp_to; |
| 2116 | break; |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 2117 | case MSR_VM_HSAVE_PA: |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 2118 | *data = svm->nested.hsave_msr; |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 2119 | break; |
Joerg Roedel | eb6f302 | 2008-11-25 20:17:09 +0100 | [diff] [blame] | 2120 | case MSR_VM_CR: |
| 2121 | *data = 0; |
| 2122 | break; |
Alexander Graf | c8a73f1 | 2009-01-05 16:02:47 +0100 | [diff] [blame] | 2123 | case MSR_IA32_UCODE_REV: |
| 2124 | *data = 0x01000065; |
| 2125 | break; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2126 | default: |
Avi Kivity | 3bab1f5 | 2006-12-29 16:49:48 -0800 | [diff] [blame] | 2127 | return kvm_get_msr_common(vcpu, ecx, data); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2128 | } |
| 2129 | return 0; |
| 2130 | } |
| 2131 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2132 | static int rdmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2133 | { |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2134 | u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX]; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2135 | u64 data; |
| 2136 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2137 | if (svm_get_msr(&svm->vcpu, ecx, &data)) |
Avi Kivity | c1a5d4f | 2007-11-25 14:12:03 +0200 | [diff] [blame] | 2138 | kvm_inject_gp(&svm->vcpu, 0); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2139 | else { |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2140 | trace_kvm_msr_read(ecx, data); |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 2141 | |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2142 | svm->vcpu.arch.regs[VCPU_REGS_RAX] = data & 0xffffffff; |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2143 | svm->vcpu.arch.regs[VCPU_REGS_RDX] = data >> 32; |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2144 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 2; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2145 | skip_emulated_instruction(&svm->vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2146 | } |
| 2147 | return 1; |
| 2148 | } |
| 2149 | |
| 2150 | static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data) |
| 2151 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2152 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2153 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2154 | switch (ecx) { |
Jaswinder Singh Rajput | af24a4e | 2009-05-15 18:42:05 +0530 | [diff] [blame] | 2155 | case MSR_IA32_TSC: { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2156 | u64 tsc; |
| 2157 | |
| 2158 | rdtscll(tsc); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2159 | svm->vmcb->control.tsc_offset = data - tsc; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2160 | break; |
| 2161 | } |
Avi Kivity | 0e859ca | 2006-12-22 01:05:08 -0800 | [diff] [blame] | 2162 | case MSR_K6_STAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2163 | svm->vmcb->save.star = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2164 | break; |
Robert P. J. Day | 49b14f2 | 2007-01-29 13:19:50 -0800 | [diff] [blame] | 2165 | #ifdef CONFIG_X86_64 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2166 | case MSR_LSTAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2167 | svm->vmcb->save.lstar = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2168 | break; |
| 2169 | case MSR_CSTAR: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2170 | svm->vmcb->save.cstar = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2171 | break; |
| 2172 | case MSR_KERNEL_GS_BASE: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2173 | svm->vmcb->save.kernel_gs_base = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2174 | break; |
| 2175 | case MSR_SYSCALL_MASK: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2176 | svm->vmcb->save.sfmask = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2177 | break; |
| 2178 | #endif |
| 2179 | case MSR_IA32_SYSENTER_CS: |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2180 | svm->vmcb->save.sysenter_cs = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2181 | break; |
| 2182 | case MSR_IA32_SYSENTER_EIP: |
Andre Przywara | 017cb99 | 2009-05-28 11:56:31 +0200 | [diff] [blame] | 2183 | svm->sysenter_eip = data; |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2184 | svm->vmcb->save.sysenter_eip = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2185 | break; |
| 2186 | case MSR_IA32_SYSENTER_ESP: |
Andre Przywara | 017cb99 | 2009-05-28 11:56:31 +0200 | [diff] [blame] | 2187 | svm->sysenter_esp = data; |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2188 | svm->vmcb->save.sysenter_esp = data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2189 | break; |
Joerg Roedel | a2938c8 | 2008-02-13 16:30:28 +0100 | [diff] [blame] | 2190 | case MSR_IA32_DEBUGCTLMSR: |
Joerg Roedel | 24e09cb | 2008-02-13 18:58:47 +0100 | [diff] [blame] | 2191 | if (!svm_has(SVM_FEATURE_LBRV)) { |
| 2192 | pr_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTL 0x%llx, nop\n", |
Harvey Harrison | b8688d5 | 2008-03-03 12:59:56 -0800 | [diff] [blame] | 2193 | __func__, data); |
Joerg Roedel | 24e09cb | 2008-02-13 18:58:47 +0100 | [diff] [blame] | 2194 | break; |
| 2195 | } |
| 2196 | if (data & DEBUGCTL_RESERVED_BITS) |
| 2197 | return 1; |
| 2198 | |
| 2199 | svm->vmcb->save.dbgctl = data; |
| 2200 | if (data & (1ULL<<0)) |
| 2201 | svm_enable_lbrv(svm); |
| 2202 | else |
| 2203 | svm_disable_lbrv(svm); |
Joerg Roedel | a2938c8 | 2008-02-13 16:30:28 +0100 | [diff] [blame] | 2204 | break; |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 2205 | case MSR_VM_HSAVE_PA: |
Joerg Roedel | e6aa9ab | 2009-08-07 11:49:33 +0200 | [diff] [blame] | 2206 | svm->nested.hsave_msr = data; |
Alexander Graf | b286d5d | 2008-11-25 20:17:05 +0100 | [diff] [blame] | 2207 | break; |
Alexander Graf | 3c5d0a4 | 2009-06-15 15:21:23 +0200 | [diff] [blame] | 2208 | case MSR_VM_CR: |
| 2209 | case MSR_VM_IGNNE: |
Alexander Graf | 3c5d0a4 | 2009-06-15 15:21:23 +0200 | [diff] [blame] | 2210 | pr_unimpl(vcpu, "unimplemented wrmsr: 0x%x data 0x%llx\n", ecx, data); |
| 2211 | break; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2212 | default: |
Avi Kivity | 3bab1f5 | 2006-12-29 16:49:48 -0800 | [diff] [blame] | 2213 | return kvm_set_msr_common(vcpu, ecx, data); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2214 | } |
| 2215 | return 0; |
| 2216 | } |
| 2217 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2218 | static int wrmsr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2219 | { |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2220 | u32 ecx = svm->vcpu.arch.regs[VCPU_REGS_RCX]; |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2221 | u64 data = (svm->vcpu.arch.regs[VCPU_REGS_RAX] & -1u) |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2222 | | ((u64)(svm->vcpu.arch.regs[VCPU_REGS_RDX] & -1u) << 32); |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 2223 | |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2224 | trace_kvm_msr_write(ecx, data); |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 2225 | |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2226 | svm->next_rip = kvm_rip_read(&svm->vcpu) + 2; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2227 | if (svm_set_msr(&svm->vcpu, ecx, data)) |
Avi Kivity | c1a5d4f | 2007-11-25 14:12:03 +0200 | [diff] [blame] | 2228 | kvm_inject_gp(&svm->vcpu, 0); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2229 | else |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2230 | skip_emulated_instruction(&svm->vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2231 | return 1; |
| 2232 | } |
| 2233 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2234 | static int msr_interception(struct vcpu_svm *svm, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2235 | { |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2236 | if (svm->vmcb->control.exit_info_1) |
| 2237 | return wrmsr_interception(svm, kvm_run); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2238 | else |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2239 | return rdmsr_interception(svm, kvm_run); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2240 | } |
| 2241 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2242 | static int interrupt_window_interception(struct vcpu_svm *svm, |
Dor Laor | c1150d8 | 2007-01-05 16:36:24 -0800 | [diff] [blame] | 2243 | struct kvm_run *kvm_run) |
| 2244 | { |
Alexander Graf | f0b8505 | 2008-11-25 20:17:01 +0100 | [diff] [blame] | 2245 | svm_clear_vintr(svm); |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 2246 | svm->vmcb->control.int_ctl &= ~V_IRQ_MASK; |
Dor Laor | c1150d8 | 2007-01-05 16:36:24 -0800 | [diff] [blame] | 2247 | /* |
| 2248 | * If the user space waits to inject interrupts, exit as soon as |
| 2249 | * possible |
| 2250 | */ |
Gleb Natapov | 8061823 | 2009-04-21 17:44:56 +0300 | [diff] [blame] | 2251 | if (!irqchip_in_kernel(svm->vcpu.kvm) && |
| 2252 | kvm_run->request_interrupt_window && |
| 2253 | !kvm_cpu_has_interrupt(&svm->vcpu)) { |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2254 | ++svm->vcpu.stat.irq_window_exits; |
Dor Laor | c1150d8 | 2007-01-05 16:36:24 -0800 | [diff] [blame] | 2255 | kvm_run->exit_reason = KVM_EXIT_IRQ_WINDOW_OPEN; |
| 2256 | return 0; |
| 2257 | } |
| 2258 | |
| 2259 | return 1; |
| 2260 | } |
| 2261 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2262 | static int (*svm_exit_handlers[])(struct vcpu_svm *svm, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2263 | struct kvm_run *kvm_run) = { |
| 2264 | [SVM_EXIT_READ_CR0] = emulate_on_interception, |
| 2265 | [SVM_EXIT_READ_CR3] = emulate_on_interception, |
| 2266 | [SVM_EXIT_READ_CR4] = emulate_on_interception, |
Avi Kivity | 80a8119 | 2007-12-06 19:50:00 +0200 | [diff] [blame] | 2267 | [SVM_EXIT_READ_CR8] = emulate_on_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2268 | /* for now: */ |
| 2269 | [SVM_EXIT_WRITE_CR0] = emulate_on_interception, |
| 2270 | [SVM_EXIT_WRITE_CR3] = emulate_on_interception, |
| 2271 | [SVM_EXIT_WRITE_CR4] = emulate_on_interception, |
Joerg Roedel | 1d07543 | 2007-12-06 21:02:25 +0100 | [diff] [blame] | 2272 | [SVM_EXIT_WRITE_CR8] = cr8_write_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2273 | [SVM_EXIT_READ_DR0] = emulate_on_interception, |
| 2274 | [SVM_EXIT_READ_DR1] = emulate_on_interception, |
| 2275 | [SVM_EXIT_READ_DR2] = emulate_on_interception, |
| 2276 | [SVM_EXIT_READ_DR3] = emulate_on_interception, |
| 2277 | [SVM_EXIT_WRITE_DR0] = emulate_on_interception, |
| 2278 | [SVM_EXIT_WRITE_DR1] = emulate_on_interception, |
| 2279 | [SVM_EXIT_WRITE_DR2] = emulate_on_interception, |
| 2280 | [SVM_EXIT_WRITE_DR3] = emulate_on_interception, |
| 2281 | [SVM_EXIT_WRITE_DR5] = emulate_on_interception, |
| 2282 | [SVM_EXIT_WRITE_DR7] = emulate_on_interception, |
Jan Kiszka | d0bfb94 | 2008-12-15 13:52:10 +0100 | [diff] [blame] | 2283 | [SVM_EXIT_EXCP_BASE + DB_VECTOR] = db_interception, |
| 2284 | [SVM_EXIT_EXCP_BASE + BP_VECTOR] = bp_interception, |
Anthony Liguori | 7aa81cc | 2007-09-17 14:57:50 -0500 | [diff] [blame] | 2285 | [SVM_EXIT_EXCP_BASE + UD_VECTOR] = ud_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2286 | [SVM_EXIT_EXCP_BASE + PF_VECTOR] = pf_interception, |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 2287 | [SVM_EXIT_EXCP_BASE + NM_VECTOR] = nm_interception, |
Joerg Roedel | 53371b5 | 2008-04-09 14:15:30 +0200 | [diff] [blame] | 2288 | [SVM_EXIT_EXCP_BASE + MC_VECTOR] = mc_interception, |
Joerg Roedel | a069805 | 2008-04-30 17:56:01 +0200 | [diff] [blame] | 2289 | [SVM_EXIT_INTR] = intr_interception, |
Joerg Roedel | c47f098 | 2008-04-30 17:56:00 +0200 | [diff] [blame] | 2290 | [SVM_EXIT_NMI] = nmi_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2291 | [SVM_EXIT_SMI] = nop_on_interception, |
| 2292 | [SVM_EXIT_INIT] = nop_on_interception, |
Dor Laor | c1150d8 | 2007-01-05 16:36:24 -0800 | [diff] [blame] | 2293 | [SVM_EXIT_VINTR] = interrupt_window_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2294 | /* [SVM_EXIT_CR0_SEL_WRITE] = emulate_on_interception, */ |
| 2295 | [SVM_EXIT_CPUID] = cpuid_interception, |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2296 | [SVM_EXIT_IRET] = iret_interception, |
Avi Kivity | cf5a94d | 2007-10-28 16:11:58 +0200 | [diff] [blame] | 2297 | [SVM_EXIT_INVD] = emulate_on_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2298 | [SVM_EXIT_HLT] = halt_interception, |
Marcelo Tosatti | a705289 | 2008-09-23 13:18:35 -0300 | [diff] [blame] | 2299 | [SVM_EXIT_INVLPG] = invlpg_interception, |
Alexander Graf | ff09238 | 2009-06-15 15:21:24 +0200 | [diff] [blame] | 2300 | [SVM_EXIT_INVLPGA] = invlpga_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2301 | [SVM_EXIT_IOIO] = io_interception, |
| 2302 | [SVM_EXIT_MSR] = msr_interception, |
| 2303 | [SVM_EXIT_TASK_SWITCH] = task_switch_interception, |
Joerg Roedel | 46fe4dd | 2007-01-26 00:56:42 -0800 | [diff] [blame] | 2304 | [SVM_EXIT_SHUTDOWN] = shutdown_interception, |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 2305 | [SVM_EXIT_VMRUN] = vmrun_interception, |
Avi Kivity | 02e235b | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 2306 | [SVM_EXIT_VMMCALL] = vmmcall_interception, |
Alexander Graf | 5542675 | 2008-11-25 20:17:06 +0100 | [diff] [blame] | 2307 | [SVM_EXIT_VMLOAD] = vmload_interception, |
| 2308 | [SVM_EXIT_VMSAVE] = vmsave_interception, |
Alexander Graf | 1371d90 | 2008-11-25 20:17:04 +0100 | [diff] [blame] | 2309 | [SVM_EXIT_STGI] = stgi_interception, |
| 2310 | [SVM_EXIT_CLGI] = clgi_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2311 | [SVM_EXIT_SKINIT] = invalid_op_interception, |
Avi Kivity | cf5a94d | 2007-10-28 16:11:58 +0200 | [diff] [blame] | 2312 | [SVM_EXIT_WBINVD] = emulate_on_interception, |
Joerg Roedel | 916ce23 | 2007-03-21 19:47:00 +0100 | [diff] [blame] | 2313 | [SVM_EXIT_MONITOR] = invalid_op_interception, |
| 2314 | [SVM_EXIT_MWAIT] = invalid_op_interception, |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2315 | [SVM_EXIT_NPF] = pf_interception, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2316 | }; |
| 2317 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2318 | static int handle_exit(struct kvm_run *kvm_run, struct kvm_vcpu *vcpu) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2319 | { |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2320 | struct vcpu_svm *svm = to_svm(vcpu); |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2321 | u32 exit_code = svm->vmcb->control.exit_code; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2322 | |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2323 | trace_kvm_exit(exit_code, svm->vmcb->save.rip); |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 2324 | |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 2325 | if (is_nested(svm)) { |
| 2326 | nsvm_printk("nested handle_exit: 0x%x | 0x%lx | 0x%lx | 0x%lx\n", |
| 2327 | exit_code, svm->vmcb->control.exit_info_1, |
| 2328 | svm->vmcb->control.exit_info_2, svm->vmcb->save.rip); |
Joerg Roedel | 9c4e40b9 | 2009-08-07 11:49:36 +0200 | [diff] [blame^] | 2329 | if (nested_svm_exit_handled(svm, true)) |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 2330 | return 1; |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 2331 | } |
| 2332 | |
Joerg Roedel | a5c3832 | 2009-08-07 11:49:32 +0200 | [diff] [blame] | 2333 | svm_complete_interrupts(svm); |
| 2334 | |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2335 | if (npt_enabled) { |
| 2336 | int mmu_reload = 0; |
| 2337 | if ((vcpu->arch.cr0 ^ svm->vmcb->save.cr0) & X86_CR0_PG) { |
| 2338 | svm_set_cr0(vcpu, svm->vmcb->save.cr0); |
| 2339 | mmu_reload = 1; |
| 2340 | } |
| 2341 | vcpu->arch.cr0 = svm->vmcb->save.cr0; |
| 2342 | vcpu->arch.cr3 = svm->vmcb->save.cr3; |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2343 | if (mmu_reload) { |
| 2344 | kvm_mmu_reset_context(vcpu); |
| 2345 | kvm_mmu_load(vcpu); |
| 2346 | } |
| 2347 | } |
| 2348 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2349 | |
| 2350 | if (svm->vmcb->control.exit_code == SVM_EXIT_ERR) { |
| 2351 | kvm_run->exit_reason = KVM_EXIT_FAIL_ENTRY; |
| 2352 | kvm_run->fail_entry.hardware_entry_failure_reason |
| 2353 | = svm->vmcb->control.exit_code; |
| 2354 | return 0; |
| 2355 | } |
| 2356 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2357 | if (is_external_interrupt(svm->vmcb->control.exit_int_info) && |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2358 | exit_code != SVM_EXIT_EXCP_BASE + PF_VECTOR && |
Gleb Natapov | fe8e7f8 | 2009-04-23 17:03:48 +0300 | [diff] [blame] | 2359 | exit_code != SVM_EXIT_NPF && exit_code != SVM_EXIT_TASK_SWITCH) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2360 | printk(KERN_ERR "%s: unexpected exit_ini_info 0x%x " |
| 2361 | "exit_code 0x%x\n", |
Harvey Harrison | b8688d5 | 2008-03-03 12:59:56 -0800 | [diff] [blame] | 2362 | __func__, svm->vmcb->control.exit_int_info, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2363 | exit_code); |
| 2364 | |
Ahmed S. Darwish | 9d8f549 | 2007-02-19 14:37:46 +0200 | [diff] [blame] | 2365 | if (exit_code >= ARRAY_SIZE(svm_exit_handlers) |
Joe Perches | 56919c5 | 2007-11-12 20:06:51 -0800 | [diff] [blame] | 2366 | || !svm_exit_handlers[exit_code]) { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2367 | kvm_run->exit_reason = KVM_EXIT_UNKNOWN; |
Avi Kivity | 364b625 | 2007-04-16 14:28:40 +0300 | [diff] [blame] | 2368 | kvm_run->hw.hardware_exit_reason = exit_code; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2369 | return 0; |
| 2370 | } |
| 2371 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2372 | return svm_exit_handlers[exit_code](svm, kvm_run); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2373 | } |
| 2374 | |
| 2375 | static void reload_tss(struct kvm_vcpu *vcpu) |
| 2376 | { |
| 2377 | int cpu = raw_smp_processor_id(); |
| 2378 | |
| 2379 | struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu); |
Mike Day | d77c26f | 2007-10-08 09:02:08 -0400 | [diff] [blame] | 2380 | svm_data->tss_desc->type = 9; /* available 32/64-bit TSS */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2381 | load_TR_desc(); |
| 2382 | } |
| 2383 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2384 | static void pre_svm_run(struct vcpu_svm *svm) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2385 | { |
| 2386 | int cpu = raw_smp_processor_id(); |
| 2387 | |
| 2388 | struct svm_cpu_data *svm_data = per_cpu(svm_data, cpu); |
| 2389 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2390 | svm->vmcb->control.tlb_ctl = TLB_CONTROL_DO_NOTHING; |
Marcelo Tosatti | 4b656b1 | 2009-07-21 12:47:45 -0300 | [diff] [blame] | 2391 | /* FIXME: handle wraparound of asid_generation */ |
| 2392 | if (svm->asid_generation != svm_data->asid_generation) |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2393 | new_asid(svm, svm_data); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2394 | } |
| 2395 | |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2396 | static void svm_inject_nmi(struct kvm_vcpu *vcpu) |
| 2397 | { |
| 2398 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2399 | |
| 2400 | svm->vmcb->control.event_inj = SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_NMI; |
| 2401 | vcpu->arch.hflags |= HF_NMI_MASK; |
| 2402 | svm->vmcb->control.intercept |= (1UL << INTERCEPT_IRET); |
| 2403 | ++vcpu->stat.nmi_injections; |
| 2404 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2405 | |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 2406 | static inline void svm_inject_irq(struct vcpu_svm *svm, int irq) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2407 | { |
| 2408 | struct vmcb_control_area *control; |
| 2409 | |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2410 | trace_kvm_inj_virq(irq); |
Joerg Roedel | af9ca2d | 2008-04-30 17:56:03 +0200 | [diff] [blame] | 2411 | |
Avi Kivity | fa89a81 | 2008-09-01 15:57:51 +0300 | [diff] [blame] | 2412 | ++svm->vcpu.stat.irq_injections; |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2413 | control = &svm->vmcb->control; |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 2414 | control->int_vector = irq; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2415 | control->int_ctl &= ~V_INTR_PRIO_MASK; |
| 2416 | control->int_ctl |= V_IRQ_MASK | |
| 2417 | ((/*control->int_vector >> 4*/ 0xf) << V_INTR_PRIO_SHIFT); |
| 2418 | } |
| 2419 | |
Gleb Natapov | 66fd3f7 | 2009-05-11 13:35:50 +0300 | [diff] [blame] | 2420 | static void svm_set_irq(struct kvm_vcpu *vcpu) |
Eddie Dong | 2a8067f | 2007-08-06 16:29:07 +0300 | [diff] [blame] | 2421 | { |
| 2422 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2423 | |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 2424 | BUG_ON(!(gif_set(svm))); |
Alexander Graf | cf74a78 | 2008-11-25 20:17:08 +0100 | [diff] [blame] | 2425 | |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 2426 | svm->vmcb->control.event_inj = vcpu->arch.interrupt.nr | |
| 2427 | SVM_EVTINJ_VALID | SVM_EVTINJ_TYPE_INTR; |
Eddie Dong | 2a8067f | 2007-08-06 16:29:07 +0300 | [diff] [blame] | 2428 | } |
| 2429 | |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2430 | static void update_cr8_intercept(struct kvm_vcpu *vcpu, int tpr, int irr) |
| 2431 | { |
| 2432 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2433 | |
| 2434 | if (irr == -1) |
| 2435 | return; |
| 2436 | |
| 2437 | if (tpr >= irr) |
| 2438 | svm->vmcb->control.intercept_cr_write |= INTERCEPT_CR8_MASK; |
| 2439 | } |
| 2440 | |
| 2441 | static int svm_nmi_allowed(struct kvm_vcpu *vcpu) |
Joerg Roedel | aaacfc9 | 2008-04-16 16:51:18 +0200 | [diff] [blame] | 2442 | { |
| 2443 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2444 | struct vmcb *vmcb = svm->vmcb; |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2445 | return !(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) && |
| 2446 | !(svm->vcpu.arch.hflags & HF_NMI_MASK); |
Joerg Roedel | aaacfc9 | 2008-04-16 16:51:18 +0200 | [diff] [blame] | 2447 | } |
| 2448 | |
Gleb Natapov | 7864612 | 2009-03-23 12:12:11 +0200 | [diff] [blame] | 2449 | static int svm_interrupt_allowed(struct kvm_vcpu *vcpu) |
| 2450 | { |
| 2451 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2452 | struct vmcb *vmcb = svm->vmcb; |
| 2453 | return (vmcb->save.rflags & X86_EFLAGS_IF) && |
| 2454 | !(vmcb->control.int_state & SVM_INTERRUPT_SHADOW_MASK) && |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 2455 | gif_set(svm) && |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 2456 | !is_nested(svm); |
Gleb Natapov | 7864612 | 2009-03-23 12:12:11 +0200 | [diff] [blame] | 2457 | } |
| 2458 | |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2459 | static void enable_irq_window(struct kvm_vcpu *vcpu) |
| 2460 | { |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 2461 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2462 | nsvm_printk("Trying to open IRQ window\n"); |
| 2463 | |
| 2464 | nested_svm_intr(svm); |
| 2465 | |
| 2466 | /* In case GIF=0 we can't rely on the CPU to tell us when |
| 2467 | * GIF becomes 1, because that's a separate STGI/VMRUN intercept. |
| 2468 | * The next time we get that intercept, this function will be |
| 2469 | * called again though and we'll get the vintr intercept. */ |
Joerg Roedel | 2af9194 | 2009-08-07 11:49:28 +0200 | [diff] [blame] | 2470 | if (gif_set(svm)) { |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 2471 | svm_set_vintr(svm); |
| 2472 | svm_inject_irq(svm, 0x0); |
| 2473 | } |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2474 | } |
| 2475 | |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2476 | static void enable_nmi_window(struct kvm_vcpu *vcpu) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2477 | { |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2478 | struct vcpu_svm *svm = to_svm(vcpu); |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 2479 | |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 2480 | if ((svm->vcpu.arch.hflags & (HF_NMI_MASK | HF_IRET_MASK)) |
| 2481 | == HF_NMI_MASK) |
| 2482 | return; /* IRET will cause a vm exit */ |
| 2483 | |
| 2484 | /* Something prevents NMI from been injected. Single step over |
| 2485 | possible problem (IRET or exception injection or interrupt |
| 2486 | shadow) */ |
| 2487 | vcpu->arch.singlestep = true; |
| 2488 | svm->vmcb->save.rflags |= (X86_EFLAGS_TF | X86_EFLAGS_RF); |
| 2489 | update_db_intercept(vcpu); |
Eddie Dong | 85f455f | 2007-07-06 12:20:49 +0300 | [diff] [blame] | 2490 | } |
| 2491 | |
Izik Eidus | cbc9402 | 2007-10-25 00:29:55 +0200 | [diff] [blame] | 2492 | static int svm_set_tss_addr(struct kvm *kvm, unsigned int addr) |
| 2493 | { |
| 2494 | return 0; |
| 2495 | } |
| 2496 | |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 2497 | static void svm_flush_tlb(struct kvm_vcpu *vcpu) |
| 2498 | { |
| 2499 | force_new_asid(vcpu); |
| 2500 | } |
| 2501 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2502 | static void svm_prepare_guest_switch(struct kvm_vcpu *vcpu) |
| 2503 | { |
| 2504 | } |
| 2505 | |
Joerg Roedel | d7bf822 | 2008-04-16 16:51:17 +0200 | [diff] [blame] | 2506 | static inline void sync_cr8_to_lapic(struct kvm_vcpu *vcpu) |
| 2507 | { |
| 2508 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2509 | |
| 2510 | if (!(svm->vmcb->control.intercept_cr_write & INTERCEPT_CR8_MASK)) { |
| 2511 | int cr8 = svm->vmcb->control.int_ctl & V_TPR_MASK; |
Gleb Natapov | 615d519 | 2009-04-21 17:45:05 +0300 | [diff] [blame] | 2512 | kvm_set_cr8(vcpu, cr8); |
Joerg Roedel | d7bf822 | 2008-04-16 16:51:17 +0200 | [diff] [blame] | 2513 | } |
| 2514 | } |
| 2515 | |
Joerg Roedel | 649d686 | 2008-04-16 16:51:15 +0200 | [diff] [blame] | 2516 | static inline void sync_lapic_to_cr8(struct kvm_vcpu *vcpu) |
| 2517 | { |
| 2518 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2519 | u64 cr8; |
| 2520 | |
Joerg Roedel | 649d686 | 2008-04-16 16:51:15 +0200 | [diff] [blame] | 2521 | cr8 = kvm_get_cr8(vcpu); |
| 2522 | svm->vmcb->control.int_ctl &= ~V_TPR_MASK; |
| 2523 | svm->vmcb->control.int_ctl |= cr8 & V_TPR_MASK; |
| 2524 | } |
| 2525 | |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2526 | static void svm_complete_interrupts(struct vcpu_svm *svm) |
| 2527 | { |
| 2528 | u8 vector; |
| 2529 | int type; |
| 2530 | u32 exitintinfo = svm->vmcb->control.exit_int_info; |
| 2531 | |
Gleb Natapov | 44c1143 | 2009-05-11 13:35:52 +0300 | [diff] [blame] | 2532 | if (svm->vcpu.arch.hflags & HF_IRET_MASK) |
| 2533 | svm->vcpu.arch.hflags &= ~(HF_NMI_MASK | HF_IRET_MASK); |
| 2534 | |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2535 | svm->vcpu.arch.nmi_injected = false; |
| 2536 | kvm_clear_exception_queue(&svm->vcpu); |
| 2537 | kvm_clear_interrupt_queue(&svm->vcpu); |
| 2538 | |
| 2539 | if (!(exitintinfo & SVM_EXITINTINFO_VALID)) |
| 2540 | return; |
| 2541 | |
| 2542 | vector = exitintinfo & SVM_EXITINTINFO_VEC_MASK; |
| 2543 | type = exitintinfo & SVM_EXITINTINFO_TYPE_MASK; |
| 2544 | |
| 2545 | switch (type) { |
| 2546 | case SVM_EXITINTINFO_TYPE_NMI: |
| 2547 | svm->vcpu.arch.nmi_injected = true; |
| 2548 | break; |
| 2549 | case SVM_EXITINTINFO_TYPE_EXEPT: |
| 2550 | /* In case of software exception do not reinject an exception |
| 2551 | vector, but re-execute and instruction instead */ |
Alexander Graf | 219b65d | 2009-06-15 15:21:25 +0200 | [diff] [blame] | 2552 | if (is_nested(svm)) |
| 2553 | break; |
Gleb Natapov | 66fd3f7 | 2009-05-11 13:35:50 +0300 | [diff] [blame] | 2554 | if (kvm_exception_is_soft(vector)) |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2555 | break; |
| 2556 | if (exitintinfo & SVM_EXITINTINFO_VALID_ERR) { |
| 2557 | u32 err = svm->vmcb->control.exit_int_info_err; |
| 2558 | kvm_queue_exception_e(&svm->vcpu, vector, err); |
| 2559 | |
| 2560 | } else |
| 2561 | kvm_queue_exception(&svm->vcpu, vector); |
| 2562 | break; |
| 2563 | case SVM_EXITINTINFO_TYPE_INTR: |
Gleb Natapov | 66fd3f7 | 2009-05-11 13:35:50 +0300 | [diff] [blame] | 2564 | kvm_queue_interrupt(&svm->vcpu, vector, false); |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2565 | break; |
| 2566 | default: |
| 2567 | break; |
| 2568 | } |
| 2569 | } |
| 2570 | |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2571 | #ifdef CONFIG_X86_64 |
| 2572 | #define R "r" |
| 2573 | #else |
| 2574 | #define R "e" |
| 2575 | #endif |
| 2576 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2577 | static void svm_vcpu_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2578 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2579 | struct vcpu_svm *svm = to_svm(vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2580 | u16 fs_selector; |
| 2581 | u16 gs_selector; |
| 2582 | u16 ldt_selector; |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 2583 | |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2584 | svm->vmcb->save.rax = vcpu->arch.regs[VCPU_REGS_RAX]; |
| 2585 | svm->vmcb->save.rsp = vcpu->arch.regs[VCPU_REGS_RSP]; |
| 2586 | svm->vmcb->save.rip = vcpu->arch.regs[VCPU_REGS_RIP]; |
| 2587 | |
Rusty Russell | e756fc6 | 2007-07-30 20:07:08 +1000 | [diff] [blame] | 2588 | pre_svm_run(svm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2589 | |
Joerg Roedel | 649d686 | 2008-04-16 16:51:15 +0200 | [diff] [blame] | 2590 | sync_lapic_to_cr8(vcpu); |
| 2591 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2592 | save_host_msrs(vcpu); |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 2593 | fs_selector = kvm_read_fs(); |
| 2594 | gs_selector = kvm_read_gs(); |
| 2595 | ldt_selector = kvm_read_ldt(); |
Alexander Graf | 3d6368e | 2008-11-25 20:17:07 +0100 | [diff] [blame] | 2596 | if (!is_nested(svm)) |
| 2597 | svm->vmcb->save.cr2 = vcpu->arch.cr2; |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2598 | /* required for live migration with NPT */ |
| 2599 | if (npt_enabled) |
| 2600 | svm->vmcb->save.cr3 = vcpu->arch.cr3; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2601 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2602 | clgi(); |
| 2603 | |
| 2604 | local_irq_enable(); |
Avi Kivity | 36241b8 | 2006-12-22 01:05:20 -0800 | [diff] [blame] | 2605 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2606 | asm volatile ( |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2607 | "push %%"R"bp; \n\t" |
| 2608 | "mov %c[rbx](%[svm]), %%"R"bx \n\t" |
| 2609 | "mov %c[rcx](%[svm]), %%"R"cx \n\t" |
| 2610 | "mov %c[rdx](%[svm]), %%"R"dx \n\t" |
| 2611 | "mov %c[rsi](%[svm]), %%"R"si \n\t" |
| 2612 | "mov %c[rdi](%[svm]), %%"R"di \n\t" |
| 2613 | "mov %c[rbp](%[svm]), %%"R"bp \n\t" |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 2614 | #ifdef CONFIG_X86_64 |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 2615 | "mov %c[r8](%[svm]), %%r8 \n\t" |
| 2616 | "mov %c[r9](%[svm]), %%r9 \n\t" |
| 2617 | "mov %c[r10](%[svm]), %%r10 \n\t" |
| 2618 | "mov %c[r11](%[svm]), %%r11 \n\t" |
| 2619 | "mov %c[r12](%[svm]), %%r12 \n\t" |
| 2620 | "mov %c[r13](%[svm]), %%r13 \n\t" |
| 2621 | "mov %c[r14](%[svm]), %%r14 \n\t" |
| 2622 | "mov %c[r15](%[svm]), %%r15 \n\t" |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2623 | #endif |
| 2624 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2625 | /* Enter guest mode */ |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2626 | "push %%"R"ax \n\t" |
| 2627 | "mov %c[vmcb](%[svm]), %%"R"ax \n\t" |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 2628 | __ex(SVM_VMLOAD) "\n\t" |
| 2629 | __ex(SVM_VMRUN) "\n\t" |
| 2630 | __ex(SVM_VMSAVE) "\n\t" |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2631 | "pop %%"R"ax \n\t" |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2632 | |
| 2633 | /* Save guest registers, load host registers */ |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2634 | "mov %%"R"bx, %c[rbx](%[svm]) \n\t" |
| 2635 | "mov %%"R"cx, %c[rcx](%[svm]) \n\t" |
| 2636 | "mov %%"R"dx, %c[rdx](%[svm]) \n\t" |
| 2637 | "mov %%"R"si, %c[rsi](%[svm]) \n\t" |
| 2638 | "mov %%"R"di, %c[rdi](%[svm]) \n\t" |
| 2639 | "mov %%"R"bp, %c[rbp](%[svm]) \n\t" |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 2640 | #ifdef CONFIG_X86_64 |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 2641 | "mov %%r8, %c[r8](%[svm]) \n\t" |
| 2642 | "mov %%r9, %c[r9](%[svm]) \n\t" |
| 2643 | "mov %%r10, %c[r10](%[svm]) \n\t" |
| 2644 | "mov %%r11, %c[r11](%[svm]) \n\t" |
| 2645 | "mov %%r12, %c[r12](%[svm]) \n\t" |
| 2646 | "mov %%r13, %c[r13](%[svm]) \n\t" |
| 2647 | "mov %%r14, %c[r14](%[svm]) \n\t" |
| 2648 | "mov %%r15, %c[r15](%[svm]) \n\t" |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2649 | #endif |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2650 | "pop %%"R"bp" |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2651 | : |
Rusty Russell | fb3f0f5 | 2007-07-27 17:16:56 +1000 | [diff] [blame] | 2652 | : [svm]"a"(svm), |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2653 | [vmcb]"i"(offsetof(struct vcpu_svm, vmcb_pa)), |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2654 | [rbx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBX])), |
| 2655 | [rcx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RCX])), |
| 2656 | [rdx]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDX])), |
| 2657 | [rsi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RSI])), |
| 2658 | [rdi]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RDI])), |
| 2659 | [rbp]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_RBP])) |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 2660 | #ifdef CONFIG_X86_64 |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2661 | , [r8]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R8])), |
| 2662 | [r9]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R9])), |
| 2663 | [r10]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R10])), |
| 2664 | [r11]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R11])), |
| 2665 | [r12]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R12])), |
| 2666 | [r13]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R13])), |
| 2667 | [r14]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R14])), |
| 2668 | [r15]"i"(offsetof(struct vcpu_svm, vcpu.arch.regs[VCPU_REGS_R15])) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2669 | #endif |
Laurent Vivier | 54a08c0 | 2007-10-25 14:18:53 +0200 | [diff] [blame] | 2670 | : "cc", "memory" |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2671 | , R"bx", R"cx", R"dx", R"si", R"di" |
Laurent Vivier | 54a08c0 | 2007-10-25 14:18:53 +0200 | [diff] [blame] | 2672 | #ifdef CONFIG_X86_64 |
Laurent Vivier | 54a08c0 | 2007-10-25 14:18:53 +0200 | [diff] [blame] | 2673 | , "r8", "r9", "r10", "r11" , "r12", "r13", "r14", "r15" |
| 2674 | #endif |
| 2675 | ); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2676 | |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 2677 | vcpu->arch.cr2 = svm->vmcb->save.cr2; |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 2678 | vcpu->arch.regs[VCPU_REGS_RAX] = svm->vmcb->save.rax; |
| 2679 | vcpu->arch.regs[VCPU_REGS_RSP] = svm->vmcb->save.rsp; |
| 2680 | vcpu->arch.regs[VCPU_REGS_RIP] = svm->vmcb->save.rip; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2681 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 2682 | kvm_load_fs(fs_selector); |
| 2683 | kvm_load_gs(gs_selector); |
| 2684 | kvm_load_ldt(ldt_selector); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2685 | load_host_msrs(vcpu); |
| 2686 | |
| 2687 | reload_tss(vcpu); |
| 2688 | |
Avi Kivity | 56ba47d | 2007-11-07 17:14:18 +0200 | [diff] [blame] | 2689 | local_irq_disable(); |
| 2690 | |
| 2691 | stgi(); |
| 2692 | |
Joerg Roedel | d7bf822 | 2008-04-16 16:51:17 +0200 | [diff] [blame] | 2693 | sync_cr8_to_lapic(vcpu); |
| 2694 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2695 | svm->next_rip = 0; |
Gleb Natapov | 9222be1 | 2009-04-23 17:14:37 +0300 | [diff] [blame] | 2696 | |
Avi Kivity | 6de4f3a | 2009-05-31 22:58:47 +0300 | [diff] [blame] | 2697 | if (npt_enabled) { |
| 2698 | vcpu->arch.regs_avail &= ~(1 << VCPU_EXREG_PDPTR); |
| 2699 | vcpu->arch.regs_dirty &= ~(1 << VCPU_EXREG_PDPTR); |
| 2700 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2701 | } |
| 2702 | |
Avi Kivity | 80e31d4 | 2008-07-14 14:44:59 +0300 | [diff] [blame] | 2703 | #undef R |
| 2704 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2705 | static void svm_set_cr3(struct kvm_vcpu *vcpu, unsigned long root) |
| 2706 | { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2707 | struct vcpu_svm *svm = to_svm(vcpu); |
| 2708 | |
Joerg Roedel | 709ddeb | 2008-02-07 13:47:45 +0100 | [diff] [blame] | 2709 | if (npt_enabled) { |
| 2710 | svm->vmcb->control.nested_cr3 = root; |
| 2711 | force_new_asid(vcpu); |
| 2712 | return; |
| 2713 | } |
| 2714 | |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2715 | svm->vmcb->save.cr3 = root; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2716 | force_new_asid(vcpu); |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 2717 | |
| 2718 | if (vcpu->fpu_active) { |
Gregory Haskins | a2fa3e9 | 2007-07-27 08:13:10 -0400 | [diff] [blame] | 2719 | svm->vmcb->control.intercept_exceptions |= (1 << NM_VECTOR); |
| 2720 | svm->vmcb->save.cr0 |= X86_CR0_TS; |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 2721 | vcpu->fpu_active = 0; |
| 2722 | } |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2723 | } |
| 2724 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2725 | static int is_disabled(void) |
| 2726 | { |
Joerg Roedel | 6031a61 | 2007-06-22 12:29:50 +0300 | [diff] [blame] | 2727 | u64 vm_cr; |
| 2728 | |
| 2729 | rdmsrl(MSR_VM_CR, vm_cr); |
| 2730 | if (vm_cr & (1 << SVM_VM_CR_SVM_DISABLE)) |
| 2731 | return 1; |
| 2732 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2733 | return 0; |
| 2734 | } |
| 2735 | |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 2736 | static void |
| 2737 | svm_patch_hypercall(struct kvm_vcpu *vcpu, unsigned char *hypercall) |
| 2738 | { |
| 2739 | /* |
| 2740 | * Patch in the VMMCALL instruction: |
| 2741 | */ |
| 2742 | hypercall[0] = 0x0f; |
| 2743 | hypercall[1] = 0x01; |
| 2744 | hypercall[2] = 0xd9; |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 2745 | } |
| 2746 | |
Yang, Sheng | 002c7f7 | 2007-07-31 14:23:01 +0300 | [diff] [blame] | 2747 | static void svm_check_processor_compat(void *rtn) |
| 2748 | { |
| 2749 | *(int *)rtn = 0; |
| 2750 | } |
| 2751 | |
Avi Kivity | 774ead3 | 2007-12-26 13:57:04 +0200 | [diff] [blame] | 2752 | static bool svm_cpu_has_accelerated_tpr(void) |
| 2753 | { |
| 2754 | return false; |
| 2755 | } |
| 2756 | |
Sheng Yang | 67253af | 2008-04-25 10:20:22 +0800 | [diff] [blame] | 2757 | static int get_npt_level(void) |
| 2758 | { |
| 2759 | #ifdef CONFIG_X86_64 |
| 2760 | return PT64_ROOT_LEVEL; |
| 2761 | #else |
| 2762 | return PT32E_ROOT_LEVEL; |
| 2763 | #endif |
| 2764 | } |
| 2765 | |
Sheng Yang | 4b12f0d | 2009-04-27 20:35:42 +0800 | [diff] [blame] | 2766 | static u64 svm_get_mt_mask(struct kvm_vcpu *vcpu, gfn_t gfn, bool is_mmio) |
Sheng Yang | 64d4d52 | 2008-10-09 16:01:57 +0800 | [diff] [blame] | 2767 | { |
| 2768 | return 0; |
| 2769 | } |
| 2770 | |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2771 | static const struct trace_print_flags svm_exit_reasons_str[] = { |
| 2772 | { SVM_EXIT_READ_CR0, "read_cr0" }, |
| 2773 | { SVM_EXIT_READ_CR3, "read_cr3" }, |
| 2774 | { SVM_EXIT_READ_CR4, "read_cr4" }, |
| 2775 | { SVM_EXIT_READ_CR8, "read_cr8" }, |
| 2776 | { SVM_EXIT_WRITE_CR0, "write_cr0" }, |
| 2777 | { SVM_EXIT_WRITE_CR3, "write_cr3" }, |
| 2778 | { SVM_EXIT_WRITE_CR4, "write_cr4" }, |
| 2779 | { SVM_EXIT_WRITE_CR8, "write_cr8" }, |
| 2780 | { SVM_EXIT_READ_DR0, "read_dr0" }, |
| 2781 | { SVM_EXIT_READ_DR1, "read_dr1" }, |
| 2782 | { SVM_EXIT_READ_DR2, "read_dr2" }, |
| 2783 | { SVM_EXIT_READ_DR3, "read_dr3" }, |
| 2784 | { SVM_EXIT_WRITE_DR0, "write_dr0" }, |
| 2785 | { SVM_EXIT_WRITE_DR1, "write_dr1" }, |
| 2786 | { SVM_EXIT_WRITE_DR2, "write_dr2" }, |
| 2787 | { SVM_EXIT_WRITE_DR3, "write_dr3" }, |
| 2788 | { SVM_EXIT_WRITE_DR5, "write_dr5" }, |
| 2789 | { SVM_EXIT_WRITE_DR7, "write_dr7" }, |
| 2790 | { SVM_EXIT_EXCP_BASE + DB_VECTOR, "DB excp" }, |
| 2791 | { SVM_EXIT_EXCP_BASE + BP_VECTOR, "BP excp" }, |
| 2792 | { SVM_EXIT_EXCP_BASE + UD_VECTOR, "UD excp" }, |
| 2793 | { SVM_EXIT_EXCP_BASE + PF_VECTOR, "PF excp" }, |
| 2794 | { SVM_EXIT_EXCP_BASE + NM_VECTOR, "NM excp" }, |
| 2795 | { SVM_EXIT_EXCP_BASE + MC_VECTOR, "MC excp" }, |
| 2796 | { SVM_EXIT_INTR, "interrupt" }, |
| 2797 | { SVM_EXIT_NMI, "nmi" }, |
| 2798 | { SVM_EXIT_SMI, "smi" }, |
| 2799 | { SVM_EXIT_INIT, "init" }, |
| 2800 | { SVM_EXIT_VINTR, "vintr" }, |
| 2801 | { SVM_EXIT_CPUID, "cpuid" }, |
| 2802 | { SVM_EXIT_INVD, "invd" }, |
| 2803 | { SVM_EXIT_HLT, "hlt" }, |
| 2804 | { SVM_EXIT_INVLPG, "invlpg" }, |
| 2805 | { SVM_EXIT_INVLPGA, "invlpga" }, |
| 2806 | { SVM_EXIT_IOIO, "io" }, |
| 2807 | { SVM_EXIT_MSR, "msr" }, |
| 2808 | { SVM_EXIT_TASK_SWITCH, "task_switch" }, |
| 2809 | { SVM_EXIT_SHUTDOWN, "shutdown" }, |
| 2810 | { SVM_EXIT_VMRUN, "vmrun" }, |
| 2811 | { SVM_EXIT_VMMCALL, "hypercall" }, |
| 2812 | { SVM_EXIT_VMLOAD, "vmload" }, |
| 2813 | { SVM_EXIT_VMSAVE, "vmsave" }, |
| 2814 | { SVM_EXIT_STGI, "stgi" }, |
| 2815 | { SVM_EXIT_CLGI, "clgi" }, |
| 2816 | { SVM_EXIT_SKINIT, "skinit" }, |
| 2817 | { SVM_EXIT_WBINVD, "wbinvd" }, |
| 2818 | { SVM_EXIT_MONITOR, "monitor" }, |
| 2819 | { SVM_EXIT_MWAIT, "mwait" }, |
| 2820 | { SVM_EXIT_NPF, "npf" }, |
| 2821 | { -1, NULL } |
| 2822 | }; |
| 2823 | |
Joerg Roedel | 344f414 | 2009-07-27 16:30:48 +0200 | [diff] [blame] | 2824 | static bool svm_gb_page_enable(void) |
| 2825 | { |
| 2826 | return true; |
| 2827 | } |
| 2828 | |
Christian Ehrhardt | cbdd1be | 2007-09-09 15:41:59 +0300 | [diff] [blame] | 2829 | static struct kvm_x86_ops svm_x86_ops = { |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2830 | .cpu_has_kvm_support = has_svm, |
| 2831 | .disabled_by_bios = is_disabled, |
| 2832 | .hardware_setup = svm_hardware_setup, |
| 2833 | .hardware_unsetup = svm_hardware_unsetup, |
Yang, Sheng | 002c7f7 | 2007-07-31 14:23:01 +0300 | [diff] [blame] | 2834 | .check_processor_compatibility = svm_check_processor_compat, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2835 | .hardware_enable = svm_hardware_enable, |
| 2836 | .hardware_disable = svm_hardware_disable, |
Avi Kivity | 774ead3 | 2007-12-26 13:57:04 +0200 | [diff] [blame] | 2837 | .cpu_has_accelerated_tpr = svm_cpu_has_accelerated_tpr, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2838 | |
| 2839 | .vcpu_create = svm_create_vcpu, |
| 2840 | .vcpu_free = svm_free_vcpu, |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2841 | .vcpu_reset = svm_vcpu_reset, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2842 | |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2843 | .prepare_guest_switch = svm_prepare_guest_switch, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2844 | .vcpu_load = svm_vcpu_load, |
| 2845 | .vcpu_put = svm_vcpu_put, |
| 2846 | |
| 2847 | .set_guest_debug = svm_guest_debug, |
| 2848 | .get_msr = svm_get_msr, |
| 2849 | .set_msr = svm_set_msr, |
| 2850 | .get_segment_base = svm_get_segment_base, |
| 2851 | .get_segment = svm_get_segment, |
| 2852 | .set_segment = svm_set_segment, |
Izik Eidus | 2e4d265 | 2008-03-24 19:38:34 +0200 | [diff] [blame] | 2853 | .get_cpl = svm_get_cpl, |
Rusty Russell | 1747fb7 | 2007-09-06 01:21:32 +1000 | [diff] [blame] | 2854 | .get_cs_db_l_bits = kvm_get_cs_db_l_bits, |
Anthony Liguori | 25c4c27 | 2007-04-27 09:29:21 +0300 | [diff] [blame] | 2855 | .decache_cr4_guest_bits = svm_decache_cr4_guest_bits, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2856 | .set_cr0 = svm_set_cr0, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2857 | .set_cr3 = svm_set_cr3, |
| 2858 | .set_cr4 = svm_set_cr4, |
| 2859 | .set_efer = svm_set_efer, |
| 2860 | .get_idt = svm_get_idt, |
| 2861 | .set_idt = svm_set_idt, |
| 2862 | .get_gdt = svm_get_gdt, |
| 2863 | .set_gdt = svm_set_gdt, |
| 2864 | .get_dr = svm_get_dr, |
| 2865 | .set_dr = svm_set_dr, |
Avi Kivity | 6de4f3a | 2009-05-31 22:58:47 +0300 | [diff] [blame] | 2866 | .cache_reg = svm_cache_reg, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2867 | .get_rflags = svm_get_rflags, |
| 2868 | .set_rflags = svm_set_rflags, |
| 2869 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2870 | .tlb_flush = svm_flush_tlb, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2871 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2872 | .run = svm_vcpu_run, |
Avi Kivity | 04d2cc7 | 2007-09-10 18:10:54 +0300 | [diff] [blame] | 2873 | .handle_exit = handle_exit, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2874 | .skip_emulated_instruction = skip_emulated_instruction, |
Glauber Costa | 2809f5d | 2009-05-12 16:21:05 -0400 | [diff] [blame] | 2875 | .set_interrupt_shadow = svm_set_interrupt_shadow, |
| 2876 | .get_interrupt_shadow = svm_get_interrupt_shadow, |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 2877 | .patch_hypercall = svm_patch_hypercall, |
Eddie Dong | 2a8067f | 2007-08-06 16:29:07 +0300 | [diff] [blame] | 2878 | .set_irq = svm_set_irq, |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2879 | .set_nmi = svm_inject_nmi, |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 2880 | .queue_exception = svm_queue_exception, |
Gleb Natapov | 7864612 | 2009-03-23 12:12:11 +0200 | [diff] [blame] | 2881 | .interrupt_allowed = svm_interrupt_allowed, |
Gleb Natapov | 95ba827313 | 2009-04-21 17:45:08 +0300 | [diff] [blame] | 2882 | .nmi_allowed = svm_nmi_allowed, |
| 2883 | .enable_nmi_window = enable_nmi_window, |
| 2884 | .enable_irq_window = enable_irq_window, |
| 2885 | .update_cr8_intercept = update_cr8_intercept, |
Izik Eidus | cbc9402 | 2007-10-25 00:29:55 +0200 | [diff] [blame] | 2886 | |
| 2887 | .set_tss_addr = svm_set_tss_addr, |
Sheng Yang | 67253af | 2008-04-25 10:20:22 +0800 | [diff] [blame] | 2888 | .get_tdp_level = get_npt_level, |
Sheng Yang | 4b12f0d | 2009-04-27 20:35:42 +0800 | [diff] [blame] | 2889 | .get_mt_mask = svm_get_mt_mask, |
Marcelo Tosatti | 229456f | 2009-06-17 09:22:14 -0300 | [diff] [blame] | 2890 | |
| 2891 | .exit_reasons_str = svm_exit_reasons_str, |
Joerg Roedel | 344f414 | 2009-07-27 16:30:48 +0200 | [diff] [blame] | 2892 | .gb_page_enable = svm_gb_page_enable, |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2893 | }; |
| 2894 | |
| 2895 | static int __init svm_init(void) |
| 2896 | { |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 2897 | return kvm_init(&svm_x86_ops, sizeof(struct vcpu_svm), |
Rusty Russell | c16f862 | 2007-07-30 21:12:19 +1000 | [diff] [blame] | 2898 | THIS_MODULE); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2899 | } |
| 2900 | |
| 2901 | static void __exit svm_exit(void) |
| 2902 | { |
Zhang Xiantao | cb498ea | 2007-11-14 20:39:31 +0800 | [diff] [blame] | 2903 | kvm_exit(); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 2904 | } |
| 2905 | |
| 2906 | module_init(svm_init) |
| 2907 | module_exit(svm_exit) |