Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 1 | #ifndef __KVM_H |
| 2 | #define __KVM_H |
| 3 | |
| 4 | /* |
| 5 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 6 | * the COPYING file in the top-level directory. |
| 7 | */ |
| 8 | |
| 9 | #include <linux/types.h> |
| 10 | #include <linux/list.h> |
| 11 | #include <linux/mutex.h> |
| 12 | #include <linux/spinlock.h> |
Markus Rechberger | 06ff0d3 | 2007-05-27 10:46:52 +0300 | [diff] [blame] | 13 | #include <linux/signal.h> |
| 14 | #include <linux/sched.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 15 | #include <linux/mm.h> |
Alexey Dobriyan | e8edc6e | 2007-05-21 01:22:52 +0400 | [diff] [blame] | 16 | #include <asm/signal.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 17 | |
| 18 | #include "vmx.h" |
| 19 | #include <linux/kvm.h> |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 20 | #include <linux/kvm_para.h> |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 21 | |
| 22 | #define CR0_PE_MASK (1ULL << 0) |
Avi Kivity | a3a0636 | 2007-05-02 23:06:22 +0300 | [diff] [blame] | 23 | #define CR0_MP_MASK (1ULL << 1) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 24 | #define CR0_TS_MASK (1ULL << 3) |
| 25 | #define CR0_NE_MASK (1ULL << 5) |
| 26 | #define CR0_WP_MASK (1ULL << 16) |
| 27 | #define CR0_NW_MASK (1ULL << 29) |
| 28 | #define CR0_CD_MASK (1ULL << 30) |
| 29 | #define CR0_PG_MASK (1ULL << 31) |
| 30 | |
| 31 | #define CR3_WPT_MASK (1ULL << 3) |
| 32 | #define CR3_PCD_MASK (1ULL << 4) |
| 33 | |
| 34 | #define CR3_RESEVED_BITS 0x07ULL |
| 35 | #define CR3_L_MODE_RESEVED_BITS (~((1ULL << 40) - 1) | 0x0fe7ULL) |
| 36 | #define CR3_FLAGS_MASK ((1ULL << 5) - 1) |
| 37 | |
| 38 | #define CR4_VME_MASK (1ULL << 0) |
| 39 | #define CR4_PSE_MASK (1ULL << 4) |
| 40 | #define CR4_PAE_MASK (1ULL << 5) |
| 41 | #define CR4_PGE_MASK (1ULL << 7) |
| 42 | #define CR4_VMXE_MASK (1ULL << 13) |
| 43 | |
| 44 | #define KVM_GUEST_CR0_MASK \ |
| 45 | (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \ |
| 46 | | CR0_NW_MASK | CR0_CD_MASK) |
| 47 | #define KVM_VM_CR0_ALWAYS_ON \ |
Avi Kivity | a3a0636 | 2007-05-02 23:06:22 +0300 | [diff] [blame] | 48 | (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK | CR0_TS_MASK \ |
| 49 | | CR0_MP_MASK) |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 50 | #define KVM_GUEST_CR4_MASK \ |
| 51 | (CR4_PSE_MASK | CR4_PAE_MASK | CR4_PGE_MASK | CR4_VMXE_MASK | CR4_VME_MASK) |
| 52 | #define KVM_PMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK) |
| 53 | #define KVM_RMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK | CR4_VME_MASK) |
| 54 | |
| 55 | #define INVALID_PAGE (~(hpa_t)0) |
| 56 | #define UNMAPPED_GVA (~(gpa_t)0) |
| 57 | |
Avi Kivity | ef9254d | 2007-06-05 14:37:09 +0300 | [diff] [blame] | 58 | #define KVM_MAX_VCPUS 4 |
Avi Kivity | e820754 | 2007-03-30 16:54:30 +0300 | [diff] [blame] | 59 | #define KVM_ALIAS_SLOTS 4 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 60 | #define KVM_MEMORY_SLOTS 4 |
Avi Kivity | 7494c0c | 2007-05-01 18:24:38 +0300 | [diff] [blame] | 61 | #define KVM_NUM_MMU_PAGES 1024 |
Avi Kivity | ebeace8 | 2007-01-05 16:36:47 -0800 | [diff] [blame] | 62 | #define KVM_MIN_FREE_MMU_PAGES 5 |
| 63 | #define KVM_REFILL_PAGES 25 |
Avi Kivity | 06465c5 | 2007-02-28 20:46:53 +0200 | [diff] [blame] | 64 | #define KVM_MAX_CPUID_ENTRIES 40 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 65 | |
| 66 | #define FX_IMAGE_SIZE 512 |
| 67 | #define FX_IMAGE_ALIGN 16 |
| 68 | #define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN) |
| 69 | |
| 70 | #define DE_VECTOR 0 |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 71 | #define NM_VECTOR 7 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 72 | #define DF_VECTOR 8 |
| 73 | #define TS_VECTOR 10 |
| 74 | #define NP_VECTOR 11 |
| 75 | #define SS_VECTOR 12 |
| 76 | #define GP_VECTOR 13 |
| 77 | #define PF_VECTOR 14 |
| 78 | |
| 79 | #define SELECTOR_TI_MASK (1 << 2) |
| 80 | #define SELECTOR_RPL_MASK 0x03 |
| 81 | |
| 82 | #define IOPL_SHIFT 12 |
| 83 | |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 84 | #define KVM_PIO_PAGE_OFFSET 1 |
| 85 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 86 | /* |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 87 | * vcpu->requests bit members |
| 88 | */ |
| 89 | #define KVM_TLB_FLUSH 0 |
| 90 | |
| 91 | /* |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 92 | * Address types: |
| 93 | * |
| 94 | * gva - guest virtual address |
| 95 | * gpa - guest physical address |
| 96 | * gfn - guest frame number |
| 97 | * hva - host virtual address |
| 98 | * hpa - host physical address |
| 99 | * hfn - host frame number |
| 100 | */ |
| 101 | |
| 102 | typedef unsigned long gva_t; |
| 103 | typedef u64 gpa_t; |
| 104 | typedef unsigned long gfn_t; |
| 105 | |
| 106 | typedef unsigned long hva_t; |
| 107 | typedef u64 hpa_t; |
| 108 | typedef unsigned long hfn_t; |
| 109 | |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 110 | #define NR_PTE_CHAIN_ENTRIES 5 |
| 111 | |
| 112 | struct kvm_pte_chain { |
| 113 | u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; |
| 114 | struct hlist_node link; |
| 115 | }; |
| 116 | |
| 117 | /* |
| 118 | * kvm_mmu_page_role, below, is defined as: |
| 119 | * |
| 120 | * bits 0:3 - total guest paging levels (2-4, or zero for real mode) |
| 121 | * bits 4:7 - page table level for this shadow (1-4) |
| 122 | * bits 8:9 - page table quadrant for 2-level guests |
| 123 | * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode) |
Avi Kivity | d55e2cb | 2007-07-10 17:50:55 +0300 | [diff] [blame] | 124 | * bits 17:19 - "access" - the user, writable, and nx bits of a huge page pde |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 125 | */ |
| 126 | union kvm_mmu_page_role { |
| 127 | unsigned word; |
| 128 | struct { |
| 129 | unsigned glevels : 4; |
| 130 | unsigned level : 4; |
| 131 | unsigned quadrant : 2; |
| 132 | unsigned pad_for_nice_hex_output : 6; |
| 133 | unsigned metaphysical : 1; |
Avi Kivity | d55e2cb | 2007-07-10 17:50:55 +0300 | [diff] [blame] | 134 | unsigned hugepage_access : 3; |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 135 | }; |
| 136 | }; |
| 137 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 138 | struct kvm_mmu_page { |
| 139 | struct list_head link; |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 140 | struct hlist_node hash_link; |
| 141 | |
| 142 | /* |
| 143 | * The following two entries are used to key the shadow page in the |
| 144 | * hash table. |
| 145 | */ |
| 146 | gfn_t gfn; |
| 147 | union kvm_mmu_page_role role; |
| 148 | |
Avi Kivity | 47ad8e6 | 2007-05-06 15:50:58 +0300 | [diff] [blame] | 149 | u64 *spt; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 150 | unsigned long slot_bitmap; /* One bit set per slot which has memory |
| 151 | * in this shadow page. |
| 152 | */ |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 153 | int multimapped; /* More than one parent_pte? */ |
Avi Kivity | 3bb65a2 | 2007-01-05 16:36:51 -0800 | [diff] [blame] | 154 | int root_count; /* Currently serving as active root */ |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 155 | union { |
| 156 | u64 *parent_pte; /* !multimapped */ |
| 157 | struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ |
| 158 | }; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 159 | }; |
| 160 | |
| 161 | struct vmcs { |
| 162 | u32 revision_id; |
| 163 | u32 abort; |
| 164 | char data[0]; |
| 165 | }; |
| 166 | |
| 167 | #define vmx_msr_entry kvm_msr_entry |
| 168 | |
| 169 | struct kvm_vcpu; |
| 170 | |
| 171 | /* |
| 172 | * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level |
| 173 | * 32-bit). The kvm_mmu structure abstracts the details of the current mmu |
| 174 | * mode. |
| 175 | */ |
| 176 | struct kvm_mmu { |
| 177 | void (*new_cr3)(struct kvm_vcpu *vcpu); |
| 178 | int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 179 | void (*free)(struct kvm_vcpu *vcpu); |
| 180 | gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); |
| 181 | hpa_t root_hpa; |
| 182 | int root_level; |
| 183 | int shadow_root_level; |
Avi Kivity | 17ac10a | 2007-01-05 16:36:40 -0800 | [diff] [blame] | 184 | |
| 185 | u64 *pae_root; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 186 | }; |
| 187 | |
Avi Kivity | 714b93d | 2007-01-05 16:36:53 -0800 | [diff] [blame] | 188 | #define KVM_NR_MEM_OBJS 20 |
| 189 | |
| 190 | struct kvm_mmu_memory_cache { |
| 191 | int nobjs; |
| 192 | void *objects[KVM_NR_MEM_OBJS]; |
| 193 | }; |
| 194 | |
| 195 | /* |
| 196 | * We don't want allocation failures within the mmu code, so we preallocate |
| 197 | * enough memory for a single page fault in a cache. |
| 198 | */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 199 | struct kvm_guest_debug { |
| 200 | int enabled; |
| 201 | unsigned long bp[4]; |
| 202 | int singlestep; |
| 203 | }; |
| 204 | |
| 205 | enum { |
| 206 | VCPU_REGS_RAX = 0, |
| 207 | VCPU_REGS_RCX = 1, |
| 208 | VCPU_REGS_RDX = 2, |
| 209 | VCPU_REGS_RBX = 3, |
| 210 | VCPU_REGS_RSP = 4, |
| 211 | VCPU_REGS_RBP = 5, |
| 212 | VCPU_REGS_RSI = 6, |
| 213 | VCPU_REGS_RDI = 7, |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 214 | #ifdef CONFIG_X86_64 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 215 | VCPU_REGS_R8 = 8, |
| 216 | VCPU_REGS_R9 = 9, |
| 217 | VCPU_REGS_R10 = 10, |
| 218 | VCPU_REGS_R11 = 11, |
| 219 | VCPU_REGS_R12 = 12, |
| 220 | VCPU_REGS_R13 = 13, |
| 221 | VCPU_REGS_R14 = 14, |
| 222 | VCPU_REGS_R15 = 15, |
| 223 | #endif |
| 224 | NR_VCPU_REGS |
| 225 | }; |
| 226 | |
| 227 | enum { |
| 228 | VCPU_SREG_CS, |
| 229 | VCPU_SREG_DS, |
| 230 | VCPU_SREG_ES, |
| 231 | VCPU_SREG_FS, |
| 232 | VCPU_SREG_GS, |
| 233 | VCPU_SREG_SS, |
| 234 | VCPU_SREG_TR, |
| 235 | VCPU_SREG_LDTR, |
| 236 | }; |
| 237 | |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 238 | struct kvm_pio_request { |
| 239 | unsigned long count; |
| 240 | int cur_count; |
| 241 | struct page *guest_pages[2]; |
| 242 | unsigned guest_page_offset; |
| 243 | int in; |
Eddie Dong | 7490634 | 2007-06-19 18:05:03 +0300 | [diff] [blame] | 244 | int port; |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 245 | int size; |
| 246 | int string; |
| 247 | int down; |
| 248 | int rep; |
| 249 | }; |
| 250 | |
Avi Kivity | 1165f5f | 2007-04-19 17:27:43 +0300 | [diff] [blame] | 251 | struct kvm_stat { |
| 252 | u32 pf_fixed; |
| 253 | u32 pf_guest; |
| 254 | u32 tlb_flush; |
| 255 | u32 invlpg; |
| 256 | |
| 257 | u32 exits; |
| 258 | u32 io_exits; |
| 259 | u32 mmio_exits; |
| 260 | u32 signal_exits; |
| 261 | u32 irq_window_exits; |
| 262 | u32 halt_exits; |
| 263 | u32 request_irq_exits; |
| 264 | u32 irq_exits; |
Avi Kivity | e6adf28 | 2007-04-30 16:07:54 +0300 | [diff] [blame] | 265 | u32 light_exits; |
Eddie Dong | 2cc5156 | 2007-05-21 07:28:09 +0300 | [diff] [blame] | 266 | u32 efer_reload; |
Avi Kivity | 1165f5f | 2007-04-19 17:27:43 +0300 | [diff] [blame] | 267 | }; |
| 268 | |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 269 | struct kvm_io_device { |
| 270 | void (*read)(struct kvm_io_device *this, |
| 271 | gpa_t addr, |
| 272 | int len, |
| 273 | void *val); |
| 274 | void (*write)(struct kvm_io_device *this, |
| 275 | gpa_t addr, |
| 276 | int len, |
| 277 | const void *val); |
| 278 | int (*in_range)(struct kvm_io_device *this, gpa_t addr); |
| 279 | void (*destructor)(struct kvm_io_device *this); |
| 280 | |
| 281 | void *private; |
| 282 | }; |
| 283 | |
| 284 | static inline void kvm_iodevice_read(struct kvm_io_device *dev, |
| 285 | gpa_t addr, |
| 286 | int len, |
| 287 | void *val) |
| 288 | { |
| 289 | dev->read(dev, addr, len, val); |
| 290 | } |
| 291 | |
| 292 | static inline void kvm_iodevice_write(struct kvm_io_device *dev, |
| 293 | gpa_t addr, |
| 294 | int len, |
| 295 | const void *val) |
| 296 | { |
| 297 | dev->write(dev, addr, len, val); |
| 298 | } |
| 299 | |
| 300 | static inline int kvm_iodevice_inrange(struct kvm_io_device *dev, gpa_t addr) |
| 301 | { |
| 302 | return dev->in_range(dev, addr); |
| 303 | } |
| 304 | |
| 305 | static inline void kvm_iodevice_destructor(struct kvm_io_device *dev) |
| 306 | { |
Eddie Dong | 7490634 | 2007-06-19 18:05:03 +0300 | [diff] [blame] | 307 | if (dev->destructor) |
| 308 | dev->destructor(dev); |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 309 | } |
| 310 | |
| 311 | /* |
| 312 | * It would be nice to use something smarter than a linear search, TBD... |
| 313 | * Thankfully we dont expect many devices to register (famous last words :), |
| 314 | * so until then it will suffice. At least its abstracted so we can change |
| 315 | * in one place. |
| 316 | */ |
| 317 | struct kvm_io_bus { |
| 318 | int dev_count; |
| 319 | #define NR_IOBUS_DEVS 6 |
| 320 | struct kvm_io_device *devs[NR_IOBUS_DEVS]; |
| 321 | }; |
| 322 | |
| 323 | void kvm_io_bus_init(struct kvm_io_bus *bus); |
| 324 | void kvm_io_bus_destroy(struct kvm_io_bus *bus); |
| 325 | struct kvm_io_device *kvm_io_bus_find_dev(struct kvm_io_bus *bus, gpa_t addr); |
| 326 | void kvm_io_bus_register_dev(struct kvm_io_bus *bus, |
| 327 | struct kvm_io_device *dev); |
| 328 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 329 | struct kvm_vcpu { |
| 330 | struct kvm *kvm; |
| 331 | union { |
| 332 | struct vmcs *vmcs; |
| 333 | struct vcpu_svm *svm; |
| 334 | }; |
| 335 | struct mutex mutex; |
| 336 | int cpu; |
| 337 | int launched; |
Avi Kivity | 0cc5064 | 2007-03-25 12:07:27 +0200 | [diff] [blame] | 338 | u64 host_tsc; |
Avi Kivity | 9a2bb7f | 2007-02-22 12:58:31 +0200 | [diff] [blame] | 339 | struct kvm_run *run; |
Dor Laor | c1150d8 | 2007-01-05 16:36:24 -0800 | [diff] [blame] | 340 | int interrupt_window_open; |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 341 | int guest_mode; |
| 342 | unsigned long requests; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 343 | unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ |
| 344 | #define NR_IRQ_WORDS KVM_IRQ_BITMAP_SIZE(unsigned long) |
| 345 | unsigned long irq_pending[NR_IRQ_WORDS]; |
| 346 | unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */ |
| 347 | unsigned long rip; /* needs vcpu_load_rsp_rip() */ |
| 348 | |
| 349 | unsigned long cr0; |
| 350 | unsigned long cr2; |
| 351 | unsigned long cr3; |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 352 | gpa_t para_state_gpa; |
| 353 | struct page *para_state_page; |
| 354 | gpa_t hypercall_gpa; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 355 | unsigned long cr4; |
| 356 | unsigned long cr8; |
Avi Kivity | 1342d35 | 2007-01-05 16:36:39 -0800 | [diff] [blame] | 357 | u64 pdptrs[4]; /* pae */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 358 | u64 shadow_efer; |
| 359 | u64 apic_base; |
Avi Kivity | 6f00e68 | 2007-01-26 00:56:40 -0800 | [diff] [blame] | 360 | u64 ia32_misc_enable_msr; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 361 | int nmsrs; |
Eddie Dong | a75beee | 2007-05-17 18:55:15 +0300 | [diff] [blame] | 362 | int save_nmsrs; |
Eddie Dong | 2cc5156 | 2007-05-21 07:28:09 +0300 | [diff] [blame] | 363 | int msr_offset_efer; |
Eddie Dong | a75beee | 2007-05-17 18:55:15 +0300 | [diff] [blame] | 364 | #ifdef CONFIG_X86_64 |
| 365 | int msr_offset_kernel_gs_base; |
| 366 | #endif |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 367 | struct vmx_msr_entry *guest_msrs; |
| 368 | struct vmx_msr_entry *host_msrs; |
| 369 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 370 | struct kvm_mmu mmu; |
| 371 | |
Avi Kivity | 714b93d | 2007-01-05 16:36:53 -0800 | [diff] [blame] | 372 | struct kvm_mmu_memory_cache mmu_pte_chain_cache; |
| 373 | struct kvm_mmu_memory_cache mmu_rmap_desc_cache; |
Avi Kivity | d3d25b0 | 2007-05-30 12:34:53 +0300 | [diff] [blame] | 374 | struct kvm_mmu_memory_cache mmu_page_cache; |
| 375 | struct kvm_mmu_memory_cache mmu_page_header_cache; |
Avi Kivity | 714b93d | 2007-01-05 16:36:53 -0800 | [diff] [blame] | 376 | |
Avi Kivity | 86a5ba0 | 2007-01-05 16:36:50 -0800 | [diff] [blame] | 377 | gfn_t last_pt_write_gfn; |
| 378 | int last_pt_write_count; |
| 379 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 380 | struct kvm_guest_debug guest_debug; |
| 381 | |
| 382 | char fx_buf[FX_BUF_SIZE]; |
| 383 | char *host_fx_image; |
| 384 | char *guest_fx_image; |
Anthony Liguori | 7807fa6 | 2007-04-23 09:17:21 -0500 | [diff] [blame] | 385 | int fpu_active; |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 386 | int guest_fpu_loaded; |
Avi Kivity | 33ed632 | 2007-05-02 16:54:03 +0300 | [diff] [blame] | 387 | struct vmx_host_state { |
| 388 | int loaded; |
| 389 | u16 fs_sel, gs_sel, ldt_sel; |
| 390 | int fs_gs_ldt_reload_needed; |
| 391 | } vmx_host_state; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 392 | |
| 393 | int mmio_needed; |
| 394 | int mmio_read_completed; |
| 395 | int mmio_is_write; |
| 396 | int mmio_size; |
| 397 | unsigned char mmio_data[8]; |
| 398 | gpa_t mmio_phys_addr; |
Avi Kivity | e7df56e | 2007-03-14 15:54:54 +0200 | [diff] [blame] | 399 | gva_t mmio_fault_cr2; |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 400 | struct kvm_pio_request pio; |
| 401 | void *pio_data; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 402 | |
Avi Kivity | 1961d27 | 2007-03-05 19:46:05 +0200 | [diff] [blame] | 403 | int sigset_active; |
| 404 | sigset_t sigset; |
| 405 | |
Avi Kivity | 1165f5f | 2007-04-19 17:27:43 +0300 | [diff] [blame] | 406 | struct kvm_stat stat; |
| 407 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 408 | struct { |
| 409 | int active; |
| 410 | u8 save_iopl; |
| 411 | struct kvm_save_segment { |
| 412 | u16 selector; |
| 413 | unsigned long base; |
| 414 | u32 limit; |
| 415 | u32 ar; |
| 416 | } tr, es, ds, fs, gs; |
| 417 | } rmode; |
Avi Kivity | 72d6e5a | 2007-06-05 16:15:51 +0300 | [diff] [blame] | 418 | int halt_request; /* real mode on Intel only */ |
Avi Kivity | 06465c5 | 2007-02-28 20:46:53 +0200 | [diff] [blame] | 419 | |
| 420 | int cpuid_nent; |
| 421 | struct kvm_cpuid_entry cpuid_entries[KVM_MAX_CPUID_ENTRIES]; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 422 | }; |
| 423 | |
Avi Kivity | e820754 | 2007-03-30 16:54:30 +0300 | [diff] [blame] | 424 | struct kvm_mem_alias { |
| 425 | gfn_t base_gfn; |
| 426 | unsigned long npages; |
| 427 | gfn_t target_gfn; |
| 428 | }; |
| 429 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 430 | struct kvm_memory_slot { |
| 431 | gfn_t base_gfn; |
| 432 | unsigned long npages; |
| 433 | unsigned long flags; |
| 434 | struct page **phys_mem; |
| 435 | unsigned long *dirty_bitmap; |
| 436 | }; |
| 437 | |
| 438 | struct kvm { |
| 439 | spinlock_t lock; /* protects everything except vcpus */ |
Avi Kivity | e820754 | 2007-03-30 16:54:30 +0300 | [diff] [blame] | 440 | int naliases; |
| 441 | struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 442 | int nmemslots; |
| 443 | struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS]; |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 444 | /* |
| 445 | * Hash table of struct kvm_mmu_page. |
| 446 | */ |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 447 | struct list_head active_mmu_pages; |
Avi Kivity | ebeace8 | 2007-01-05 16:36:47 -0800 | [diff] [blame] | 448 | int n_free_mmu_pages; |
Avi Kivity | cea0f0e | 2007-01-05 16:36:43 -0800 | [diff] [blame] | 449 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; |
Avi Kivity | 39c3b86 | 2007-06-07 19:11:53 +0300 | [diff] [blame] | 450 | int nvcpus; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 451 | struct kvm_vcpu vcpus[KVM_MAX_VCPUS]; |
| 452 | int memory_config_version; |
| 453 | int busy; |
Avi Kivity | cd4a4e5 | 2007-01-05 16:36:38 -0800 | [diff] [blame] | 454 | unsigned long rmap_overflow; |
Avi Kivity | 133de90 | 2007-02-12 00:54:44 -0800 | [diff] [blame] | 455 | struct list_head vm_list; |
Avi Kivity | bccf215 | 2007-02-21 18:04:26 +0200 | [diff] [blame] | 456 | struct file *filp; |
Gregory Haskins | 2eeb2e9 | 2007-05-31 14:08:53 -0400 | [diff] [blame] | 457 | struct kvm_io_bus mmio_bus; |
Eddie Dong | 7490634 | 2007-06-19 18:05:03 +0300 | [diff] [blame] | 458 | struct kvm_io_bus pio_bus; |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 459 | }; |
| 460 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 461 | struct descriptor_table { |
| 462 | u16 limit; |
| 463 | unsigned long base; |
| 464 | } __attribute__((packed)); |
| 465 | |
| 466 | struct kvm_arch_ops { |
| 467 | int (*cpu_has_kvm_support)(void); /* __init */ |
| 468 | int (*disabled_by_bios)(void); /* __init */ |
| 469 | void (*hardware_enable)(void *dummy); /* __init */ |
| 470 | void (*hardware_disable)(void *dummy); |
| 471 | int (*hardware_setup)(void); /* __init */ |
| 472 | void (*hardware_unsetup)(void); /* __exit */ |
| 473 | |
| 474 | int (*vcpu_create)(struct kvm_vcpu *vcpu); |
| 475 | void (*vcpu_free)(struct kvm_vcpu *vcpu); |
| 476 | |
Avi Kivity | bccf215 | 2007-02-21 18:04:26 +0200 | [diff] [blame] | 477 | void (*vcpu_load)(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 478 | void (*vcpu_put)(struct kvm_vcpu *vcpu); |
Avi Kivity | 774c47f | 2007-02-12 00:54:47 -0800 | [diff] [blame] | 479 | void (*vcpu_decache)(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 480 | |
| 481 | int (*set_guest_debug)(struct kvm_vcpu *vcpu, |
| 482 | struct kvm_debug_guest *dbg); |
| 483 | int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); |
| 484 | int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); |
| 485 | u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); |
| 486 | void (*get_segment)(struct kvm_vcpu *vcpu, |
| 487 | struct kvm_segment *var, int seg); |
| 488 | void (*set_segment)(struct kvm_vcpu *vcpu, |
| 489 | struct kvm_segment *var, int seg); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 490 | void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); |
Anthony Liguori | 25c4c27 | 2007-04-27 09:29:21 +0300 | [diff] [blame] | 491 | void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 492 | void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 493 | void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); |
| 494 | void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); |
| 495 | void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); |
| 496 | void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 497 | void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 498 | void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 499 | void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 500 | unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr); |
| 501 | void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value, |
| 502 | int *exception); |
| 503 | void (*cache_regs)(struct kvm_vcpu *vcpu); |
| 504 | void (*decache_regs)(struct kvm_vcpu *vcpu); |
| 505 | unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); |
| 506 | void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); |
| 507 | |
| 508 | void (*invlpg)(struct kvm_vcpu *vcpu, gva_t addr); |
| 509 | void (*tlb_flush)(struct kvm_vcpu *vcpu); |
| 510 | void (*inject_page_fault)(struct kvm_vcpu *vcpu, |
| 511 | unsigned long addr, u32 err_code); |
| 512 | |
| 513 | void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code); |
| 514 | |
| 515 | int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run); |
| 516 | int (*vcpu_setup)(struct kvm_vcpu *vcpu); |
| 517 | void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); |
Ingo Molnar | 102d832 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 518 | void (*patch_hypercall)(struct kvm_vcpu *vcpu, |
| 519 | unsigned char *hypercall_addr); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 520 | }; |
| 521 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 522 | extern struct kvm_arch_ops *kvm_arch_ops; |
| 523 | |
| 524 | #define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt) |
| 525 | #define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt) |
| 526 | |
| 527 | int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module); |
| 528 | void kvm_exit_arch(void); |
| 529 | |
Avi Kivity | b5a33a7 | 2007-04-15 16:31:09 +0300 | [diff] [blame] | 530 | int kvm_mmu_module_init(void); |
| 531 | void kvm_mmu_module_exit(void); |
| 532 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 533 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); |
Ingo Molnar | 8018c27 | 2006-12-29 16:50:01 -0800 | [diff] [blame] | 534 | int kvm_mmu_create(struct kvm_vcpu *vcpu); |
| 535 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 536 | |
| 537 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); |
Avi Kivity | 90cb052 | 2007-07-17 13:04:56 +0300 | [diff] [blame] | 538 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); |
| 539 | void kvm_mmu_zap_all(struct kvm *kvm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 540 | |
| 541 | hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa); |
| 542 | #define HPA_MSB ((sizeof(hpa_t) * 8) - 1) |
| 543 | #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB) |
| 544 | static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; } |
| 545 | hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva); |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 546 | struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 547 | |
| 548 | void kvm_emulator_want_group7_invlpg(void); |
| 549 | |
| 550 | extern hpa_t bad_page_address; |
| 551 | |
Avi Kivity | 954bbbc | 2007-03-30 14:02:32 +0300 | [diff] [blame] | 552 | struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 553 | struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn); |
| 554 | void mark_page_dirty(struct kvm *kvm, gfn_t gfn); |
| 555 | |
| 556 | enum emulation_result { |
| 557 | EMULATE_DONE, /* no further processing */ |
| 558 | EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ |
| 559 | EMULATE_FAIL, /* can't emulate this instruction */ |
| 560 | }; |
| 561 | |
| 562 | int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, |
| 563 | unsigned long cr2, u16 error_code); |
| 564 | void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); |
| 565 | void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); |
| 566 | void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, |
| 567 | unsigned long *rflags); |
| 568 | |
| 569 | unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); |
| 570 | void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, |
| 571 | unsigned long *rflags); |
Avi Kivity | 35f3f28 | 2007-07-17 14:20:30 +0300 | [diff] [blame] | 572 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
| 573 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 574 | |
| 575 | struct x86_emulate_ctxt; |
| 576 | |
Avi Kivity | 039576c | 2007-03-20 12:46:50 +0200 | [diff] [blame] | 577 | int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, |
| 578 | int size, unsigned long count, int string, int down, |
| 579 | gva_t address, int rep, unsigned port); |
Avi Kivity | 06465c5 | 2007-02-28 20:46:53 +0200 | [diff] [blame] | 580 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); |
Avi Kivity | d3bef15 | 2007-06-05 15:53:05 +0300 | [diff] [blame] | 581 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 582 | int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); |
| 583 | int emulate_clts(struct kvm_vcpu *vcpu); |
| 584 | int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr, |
| 585 | unsigned long *dest); |
| 586 | int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, |
| 587 | unsigned long value); |
| 588 | |
| 589 | void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); |
| 590 | void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0); |
| 591 | void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0); |
| 592 | void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0); |
| 593 | void lmsw(struct kvm_vcpu *vcpu, unsigned long msw); |
| 594 | |
Avi Kivity | 3bab1f5 | 2006-12-29 16:49:48 -0800 | [diff] [blame] | 595 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); |
| 596 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 597 | |
| 598 | void fx_init(struct kvm_vcpu *vcpu); |
| 599 | |
| 600 | void load_msrs(struct vmx_msr_entry *e, int n); |
| 601 | void save_msrs(struct vmx_msr_entry *e, int n); |
| 602 | void kvm_resched(struct kvm_vcpu *vcpu); |
Avi Kivity | 7702fd1 | 2007-06-14 16:27:40 +0300 | [diff] [blame] | 603 | void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); |
| 604 | void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); |
Avi Kivity | d9e368d | 2007-06-07 19:18:30 +0300 | [diff] [blame] | 605 | void kvm_flush_remote_tlbs(struct kvm *kvm); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 606 | |
| 607 | int kvm_read_guest(struct kvm_vcpu *vcpu, |
| 608 | gva_t addr, |
| 609 | unsigned long size, |
| 610 | void *dest); |
| 611 | |
| 612 | int kvm_write_guest(struct kvm_vcpu *vcpu, |
| 613 | gva_t addr, |
| 614 | unsigned long size, |
| 615 | void *data); |
| 616 | |
| 617 | unsigned long segment_base(u16 selector); |
| 618 | |
Avi Kivity | 09072da | 2007-05-01 14:16:52 +0300 | [diff] [blame] | 619 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
| 620 | const u8 *old, const u8 *new, int bytes); |
Avi Kivity | a436036 | 2007-01-05 16:36:45 -0800 | [diff] [blame] | 621 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
Avi Kivity | ebeace8 | 2007-01-05 16:36:47 -0800 | [diff] [blame] | 622 | void kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); |
Avi Kivity | 17c3ba9 | 2007-06-04 15:58:30 +0300 | [diff] [blame] | 623 | int kvm_mmu_load(struct kvm_vcpu *vcpu); |
| 624 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); |
Avi Kivity | ebeace8 | 2007-01-05 16:36:47 -0800 | [diff] [blame] | 625 | |
Avi Kivity | 270fd9b | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 626 | int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run); |
| 627 | |
Avi Kivity | ebeace8 | 2007-01-05 16:36:47 -0800 | [diff] [blame] | 628 | static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, |
| 629 | u32 error_code) |
| 630 | { |
| 631 | if (unlikely(vcpu->kvm->n_free_mmu_pages < KVM_MIN_FREE_MMU_PAGES)) |
| 632 | kvm_mmu_free_some_pages(vcpu); |
| 633 | return vcpu->mmu.page_fault(vcpu, gva, error_code); |
| 634 | } |
Avi Kivity | da4a00f | 2007-01-05 16:36:44 -0800 | [diff] [blame] | 635 | |
Avi Kivity | 17c3ba9 | 2007-06-04 15:58:30 +0300 | [diff] [blame] | 636 | static inline int kvm_mmu_reload(struct kvm_vcpu *vcpu) |
| 637 | { |
| 638 | if (likely(vcpu->mmu.root_hpa != INVALID_PAGE)) |
| 639 | return 0; |
| 640 | |
| 641 | return kvm_mmu_load(vcpu); |
| 642 | } |
| 643 | |
Avi Kivity | a9058ec | 2006-12-29 16:49:37 -0800 | [diff] [blame] | 644 | static inline int is_long_mode(struct kvm_vcpu *vcpu) |
| 645 | { |
| 646 | #ifdef CONFIG_X86_64 |
| 647 | return vcpu->shadow_efer & EFER_LME; |
| 648 | #else |
| 649 | return 0; |
| 650 | #endif |
| 651 | } |
| 652 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 653 | static inline int is_pae(struct kvm_vcpu *vcpu) |
| 654 | { |
| 655 | return vcpu->cr4 & CR4_PAE_MASK; |
| 656 | } |
| 657 | |
| 658 | static inline int is_pse(struct kvm_vcpu *vcpu) |
| 659 | { |
| 660 | return vcpu->cr4 & CR4_PSE_MASK; |
| 661 | } |
| 662 | |
| 663 | static inline int is_paging(struct kvm_vcpu *vcpu) |
| 664 | { |
| 665 | return vcpu->cr0 & CR0_PG_MASK; |
| 666 | } |
| 667 | |
| 668 | static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot) |
| 669 | { |
| 670 | return slot - kvm->memslots; |
| 671 | } |
| 672 | |
| 673 | static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) |
| 674 | { |
| 675 | struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); |
| 676 | |
Markus Rechberger | 5972e95 | 2007-02-19 14:37:47 +0200 | [diff] [blame] | 677 | return (struct kvm_mmu_page *)page_private(page); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 678 | } |
| 679 | |
| 680 | static inline u16 read_fs(void) |
| 681 | { |
| 682 | u16 seg; |
| 683 | asm ("mov %%fs, %0" : "=g"(seg)); |
| 684 | return seg; |
| 685 | } |
| 686 | |
| 687 | static inline u16 read_gs(void) |
| 688 | { |
| 689 | u16 seg; |
| 690 | asm ("mov %%gs, %0" : "=g"(seg)); |
| 691 | return seg; |
| 692 | } |
| 693 | |
| 694 | static inline u16 read_ldt(void) |
| 695 | { |
| 696 | u16 ldt; |
| 697 | asm ("sldt %0" : "=g"(ldt)); |
| 698 | return ldt; |
| 699 | } |
| 700 | |
| 701 | static inline void load_fs(u16 sel) |
| 702 | { |
| 703 | asm ("mov %0, %%fs" : : "rm"(sel)); |
| 704 | } |
| 705 | |
| 706 | static inline void load_gs(u16 sel) |
| 707 | { |
| 708 | asm ("mov %0, %%gs" : : "rm"(sel)); |
| 709 | } |
| 710 | |
| 711 | #ifndef load_ldt |
| 712 | static inline void load_ldt(u16 sel) |
| 713 | { |
S.Caglar Onur | a0610dd | 2007-02-12 00:54:34 -0800 | [diff] [blame] | 714 | asm ("lldt %0" : : "rm"(sel)); |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 715 | } |
| 716 | #endif |
| 717 | |
| 718 | static inline void get_idt(struct descriptor_table *table) |
| 719 | { |
| 720 | asm ("sidt %0" : "=m"(*table)); |
| 721 | } |
| 722 | |
| 723 | static inline void get_gdt(struct descriptor_table *table) |
| 724 | { |
| 725 | asm ("sgdt %0" : "=m"(*table)); |
| 726 | } |
| 727 | |
| 728 | static inline unsigned long read_tr_base(void) |
| 729 | { |
| 730 | u16 tr; |
| 731 | asm ("str %0" : "=g"(tr)); |
| 732 | return segment_base(tr); |
| 733 | } |
| 734 | |
Avi Kivity | 05b3e0c | 2006-12-13 00:33:45 -0800 | [diff] [blame] | 735 | #ifdef CONFIG_X86_64 |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 736 | static inline unsigned long read_msr(unsigned long msr) |
| 737 | { |
| 738 | u64 value; |
| 739 | |
| 740 | rdmsrl(msr, value); |
| 741 | return value; |
| 742 | } |
| 743 | #endif |
| 744 | |
| 745 | static inline void fx_save(void *image) |
| 746 | { |
| 747 | asm ("fxsave (%0)":: "r" (image)); |
| 748 | } |
| 749 | |
| 750 | static inline void fx_restore(void *image) |
| 751 | { |
| 752 | asm ("fxrstor (%0)":: "r" (image)); |
| 753 | } |
| 754 | |
| 755 | static inline void fpu_init(void) |
| 756 | { |
| 757 | asm ("finit"); |
| 758 | } |
| 759 | |
| 760 | static inline u32 get_rdx_init_val(void) |
| 761 | { |
| 762 | return 0x600; /* P6 family */ |
| 763 | } |
| 764 | |
| 765 | #define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30" |
| 766 | #define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2" |
| 767 | #define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3" |
| 768 | #define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30" |
| 769 | #define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0" |
| 770 | #define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0" |
| 771 | #define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4" |
| 772 | #define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4" |
| 773 | #define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30" |
| 774 | |
| 775 | #define MSR_IA32_TIME_STAMP_COUNTER 0x010 |
| 776 | |
| 777 | #define TSS_IOPB_BASE_OFFSET 0x66 |
| 778 | #define TSS_BASE_SIZE 0x68 |
| 779 | #define TSS_IOPB_SIZE (65536 / 8) |
| 780 | #define TSS_REDIRECTION_SIZE (256 / 8) |
| 781 | #define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) |
| 782 | |
Avi Kivity | 6aa8b73 | 2006-12-10 02:21:36 -0800 | [diff] [blame] | 783 | #endif |