Vegard Nossum | a656c8e | 2008-07-22 21:27:11 +0200 | [diff] [blame] | 1 | /* |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 2 | * Kernel-based Virtual Machine driver for Linux |
| 3 | * |
| 4 | * This header defines architecture specific interfaces, x86 version |
| 5 | * |
| 6 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 7 | * the COPYING file in the top-level directory. |
| 8 | * |
| 9 | */ |
| 10 | |
Vegard Nossum | 77ef50a | 2008-06-18 17:08:48 +0200 | [diff] [blame] | 11 | #ifndef ASM_X86__KVM_HOST_H |
| 12 | #define ASM_X86__KVM_HOST_H |
Carsten Otte | 043405e | 2007-10-10 17:16:19 +0200 | [diff] [blame] | 13 | |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 14 | #include <linux/types.h> |
| 15 | #include <linux/mm.h> |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 16 | #include <linux/mmu_notifier.h> |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 17 | |
| 18 | #include <linux/kvm.h> |
| 19 | #include <linux/kvm_para.h> |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 20 | #include <linux/kvm_types.h> |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 21 | |
Gerd Hoffmann | 50d0a0f | 2008-06-03 16:17:31 +0200 | [diff] [blame] | 22 | #include <asm/pvclock-abi.h> |
Hollis Blanchard | e01a1b5 | 2007-12-03 15:30:25 -0600 | [diff] [blame] | 23 | #include <asm/desc.h> |
| 24 | |
Avi Kivity | 69a9f69 | 2008-03-21 12:38:23 +0200 | [diff] [blame] | 25 | #define KVM_MAX_VCPUS 16 |
| 26 | #define KVM_MEMORY_SLOTS 32 |
| 27 | /* memory slots that does not exposed to userspace */ |
| 28 | #define KVM_PRIVATE_MEM_SLOTS 4 |
| 29 | |
| 30 | #define KVM_PIO_PAGE_OFFSET 1 |
Laurent Vivier | 542472b | 2008-05-30 16:05:55 +0200 | [diff] [blame] | 31 | #define KVM_COALESCED_MMIO_PAGE_OFFSET 2 |
Avi Kivity | 69a9f69 | 2008-03-21 12:38:23 +0200 | [diff] [blame] | 32 | |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 33 | #define CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1) |
| 34 | #define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD)) |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 35 | #define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS | \ |
| 36 | 0xFFFFFF0000000000ULL) |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 37 | |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 38 | #define KVM_GUEST_CR0_MASK \ |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 39 | (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \ |
| 40 | | X86_CR0_NW | X86_CR0_CD) |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 41 | #define KVM_VM_CR0_ALWAYS_ON \ |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 42 | (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \ |
| 43 | | X86_CR0_MP) |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 44 | #define KVM_GUEST_CR4_MASK \ |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 45 | (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE) |
| 46 | #define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE) |
| 47 | #define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE) |
| 48 | |
| 49 | #define INVALID_PAGE (~(hpa_t)0) |
| 50 | #define UNMAPPED_GVA (~(gpa_t)0) |
| 51 | |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 52 | /* shadow tables are PAE even on non-PAE hosts */ |
| 53 | #define KVM_HPAGE_SHIFT 21 |
| 54 | #define KVM_HPAGE_SIZE (1UL << KVM_HPAGE_SHIFT) |
| 55 | #define KVM_HPAGE_MASK (~(KVM_HPAGE_SIZE - 1)) |
| 56 | |
| 57 | #define KVM_PAGES_PER_HPAGE (KVM_HPAGE_SIZE / PAGE_SIZE) |
| 58 | |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 59 | #define DE_VECTOR 0 |
Jan Kiszka | 19bd8af | 2008-07-13 13:40:55 +0200 | [diff] [blame] | 60 | #define DB_VECTOR 1 |
Jan Kiszka | 77ab6db | 2008-07-14 12:28:51 +0200 | [diff] [blame] | 61 | #define BP_VECTOR 3 |
| 62 | #define OF_VECTOR 4 |
| 63 | #define BR_VECTOR 5 |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 64 | #define UD_VECTOR 6 |
| 65 | #define NM_VECTOR 7 |
| 66 | #define DF_VECTOR 8 |
| 67 | #define TS_VECTOR 10 |
| 68 | #define NP_VECTOR 11 |
| 69 | #define SS_VECTOR 12 |
| 70 | #define GP_VECTOR 13 |
| 71 | #define PF_VECTOR 14 |
Jan Kiszka | 77ab6db | 2008-07-14 12:28:51 +0200 | [diff] [blame] | 72 | #define MF_VECTOR 16 |
Joerg Roedel | 53371b5 | 2008-04-09 14:15:30 +0200 | [diff] [blame] | 73 | #define MC_VECTOR 18 |
Zhang Xiantao | cd6e8f8 | 2007-11-19 14:33:37 +0800 | [diff] [blame] | 74 | |
| 75 | #define SELECTOR_TI_MASK (1 << 2) |
| 76 | #define SELECTOR_RPL_MASK 0x03 |
| 77 | |
| 78 | #define IOPL_SHIFT 12 |
| 79 | |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 80 | #define KVM_ALIAS_SLOTS 4 |
| 81 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 82 | #define KVM_PERMILLE_MMU_PAGES 20 |
| 83 | #define KVM_MIN_ALLOC_MMU_PAGES 64 |
Dong, Eddie | 1ae0a13 | 2008-01-07 13:20:25 +0200 | [diff] [blame] | 84 | #define KVM_MMU_HASH_SHIFT 10 |
| 85 | #define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT) |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 86 | #define KVM_MIN_FREE_MMU_PAGES 5 |
| 87 | #define KVM_REFILL_PAGES 25 |
| 88 | #define KVM_MAX_CPUID_ENTRIES 40 |
Avi Kivity | 9ba075a | 2008-05-26 20:06:35 +0300 | [diff] [blame] | 89 | #define KVM_NR_VAR_MTRR 8 |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 90 | |
Zhang Xiantao | e9b11c1 | 2007-11-14 20:38:21 +0800 | [diff] [blame] | 91 | extern spinlock_t kvm_lock; |
| 92 | extern struct list_head vm_list; |
| 93 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 94 | struct kvm_vcpu; |
| 95 | struct kvm; |
| 96 | |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 97 | enum kvm_reg { |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 98 | VCPU_REGS_RAX = 0, |
| 99 | VCPU_REGS_RCX = 1, |
| 100 | VCPU_REGS_RDX = 2, |
| 101 | VCPU_REGS_RBX = 3, |
| 102 | VCPU_REGS_RSP = 4, |
| 103 | VCPU_REGS_RBP = 5, |
| 104 | VCPU_REGS_RSI = 6, |
| 105 | VCPU_REGS_RDI = 7, |
| 106 | #ifdef CONFIG_X86_64 |
| 107 | VCPU_REGS_R8 = 8, |
| 108 | VCPU_REGS_R9 = 9, |
| 109 | VCPU_REGS_R10 = 10, |
| 110 | VCPU_REGS_R11 = 11, |
| 111 | VCPU_REGS_R12 = 12, |
| 112 | VCPU_REGS_R13 = 13, |
| 113 | VCPU_REGS_R14 = 14, |
| 114 | VCPU_REGS_R15 = 15, |
| 115 | #endif |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 116 | VCPU_REGS_RIP, |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 117 | NR_VCPU_REGS |
| 118 | }; |
| 119 | |
| 120 | enum { |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 121 | VCPU_SREG_ES, |
Avi Kivity | 81609e3 | 2008-05-27 16:26:01 +0300 | [diff] [blame] | 122 | VCPU_SREG_CS, |
| 123 | VCPU_SREG_SS, |
| 124 | VCPU_SREG_DS, |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 125 | VCPU_SREG_FS, |
| 126 | VCPU_SREG_GS, |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 127 | VCPU_SREG_TR, |
| 128 | VCPU_SREG_LDTR, |
| 129 | }; |
| 130 | |
Avi Kivity | edf8841 | 2007-12-16 11:02:48 +0200 | [diff] [blame] | 131 | #include <asm/kvm_x86_emulate.h> |
Zhang Xiantao | 2b3ccfa | 2007-11-19 14:56:05 +0800 | [diff] [blame] | 132 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 133 | #define KVM_NR_MEM_OBJS 40 |
| 134 | |
Avi Kivity | 69a9f69 | 2008-03-21 12:38:23 +0200 | [diff] [blame] | 135 | struct kvm_guest_debug { |
| 136 | int enabled; |
| 137 | unsigned long bp[4]; |
| 138 | int singlestep; |
| 139 | }; |
| 140 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 141 | /* |
| 142 | * We don't want allocation failures within the mmu code, so we preallocate |
| 143 | * enough memory for a single page fault in a cache. |
| 144 | */ |
| 145 | struct kvm_mmu_memory_cache { |
| 146 | int nobjs; |
| 147 | void *objects[KVM_NR_MEM_OBJS]; |
| 148 | }; |
| 149 | |
| 150 | #define NR_PTE_CHAIN_ENTRIES 5 |
| 151 | |
| 152 | struct kvm_pte_chain { |
| 153 | u64 *parent_ptes[NR_PTE_CHAIN_ENTRIES]; |
| 154 | struct hlist_node link; |
| 155 | }; |
| 156 | |
| 157 | /* |
| 158 | * kvm_mmu_page_role, below, is defined as: |
| 159 | * |
| 160 | * bits 0:3 - total guest paging levels (2-4, or zero for real mode) |
| 161 | * bits 4:7 - page table level for this shadow (1-4) |
| 162 | * bits 8:9 - page table quadrant for 2-level guests |
| 163 | * bit 16 - "metaphysical" - gfn is not a real page (huge page/real mode) |
| 164 | * bits 17:19 - common access permissions for all ptes in this shadow page |
| 165 | */ |
| 166 | union kvm_mmu_page_role { |
| 167 | unsigned word; |
| 168 | struct { |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 169 | unsigned glevels:4; |
| 170 | unsigned level:4; |
| 171 | unsigned quadrant:2; |
| 172 | unsigned pad_for_nice_hex_output:6; |
| 173 | unsigned metaphysical:1; |
| 174 | unsigned access:3; |
Marcelo Tosatti | 2e53d63 | 2008-02-20 14:47:24 -0500 | [diff] [blame] | 175 | unsigned invalid:1; |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 176 | }; |
| 177 | }; |
| 178 | |
| 179 | struct kvm_mmu_page { |
| 180 | struct list_head link; |
| 181 | struct hlist_node hash_link; |
| 182 | |
| 183 | /* |
| 184 | * The following two entries are used to key the shadow page in the |
| 185 | * hash table. |
| 186 | */ |
| 187 | gfn_t gfn; |
| 188 | union kvm_mmu_page_role role; |
| 189 | |
| 190 | u64 *spt; |
| 191 | /* hold the gfn of each spte inside spt */ |
| 192 | gfn_t *gfns; |
| 193 | unsigned long slot_bitmap; /* One bit set per slot which has memory |
| 194 | * in this shadow page. |
| 195 | */ |
| 196 | int multimapped; /* More than one parent_pte? */ |
| 197 | int root_count; /* Currently serving as active root */ |
| 198 | union { |
| 199 | u64 *parent_pte; /* !multimapped */ |
| 200 | struct hlist_head parent_ptes; /* multimapped, kvm_pte_chain */ |
| 201 | }; |
| 202 | }; |
| 203 | |
Dave Hansen | 6ad18fb | 2008-08-11 10:01:49 -0700 | [diff] [blame] | 204 | struct kvm_pv_mmu_op_buffer { |
| 205 | void *ptr; |
| 206 | unsigned len; |
| 207 | unsigned processed; |
| 208 | char buf[512] __aligned(sizeof(long)); |
| 209 | }; |
| 210 | |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 211 | /* |
| 212 | * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level |
| 213 | * 32-bit). The kvm_mmu structure abstracts the details of the current mmu |
| 214 | * mode. |
| 215 | */ |
| 216 | struct kvm_mmu { |
| 217 | void (*new_cr3)(struct kvm_vcpu *vcpu); |
| 218 | int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); |
| 219 | void (*free)(struct kvm_vcpu *vcpu); |
| 220 | gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva); |
| 221 | void (*prefetch_page)(struct kvm_vcpu *vcpu, |
| 222 | struct kvm_mmu_page *page); |
Marcelo Tosatti | e8bc217 | 2008-09-23 13:18:33 -0300 | [diff] [blame] | 223 | int (*sync_page)(struct kvm_vcpu *vcpu, |
| 224 | struct kvm_mmu_page *sp); |
Zhang Xiantao | d657a98 | 2007-12-14 09:41:22 +0800 | [diff] [blame] | 225 | hpa_t root_hpa; |
| 226 | int root_level; |
| 227 | int shadow_root_level; |
| 228 | |
| 229 | u64 *pae_root; |
| 230 | }; |
| 231 | |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 232 | struct kvm_vcpu_arch { |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 233 | u64 host_tsc; |
| 234 | int interrupt_window_open; |
| 235 | unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */ |
| 236 | DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS); |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 237 | /* |
| 238 | * rip and regs accesses must go through |
| 239 | * kvm_{register,rip}_{read,write} functions. |
| 240 | */ |
| 241 | unsigned long regs[NR_VCPU_REGS]; |
| 242 | u32 regs_avail; |
| 243 | u32 regs_dirty; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 244 | |
| 245 | unsigned long cr0; |
| 246 | unsigned long cr2; |
| 247 | unsigned long cr3; |
| 248 | unsigned long cr4; |
| 249 | unsigned long cr8; |
| 250 | u64 pdptrs[4]; /* pae */ |
| 251 | u64 shadow_efer; |
| 252 | u64 apic_base; |
| 253 | struct kvm_lapic *apic; /* kernel irqchip context */ |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 254 | int mp_state; |
| 255 | int sipi_vector; |
| 256 | u64 ia32_misc_enable_msr; |
Avi Kivity | b209749f | 2007-10-22 16:50:39 +0200 | [diff] [blame] | 257 | bool tpr_access_reporting; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 258 | |
| 259 | struct kvm_mmu mmu; |
Dave Hansen | 6ad18fb | 2008-08-11 10:01:49 -0700 | [diff] [blame] | 260 | /* only needed in kvm_pv_mmu_op() path, but it's hot so |
| 261 | * put it here to avoid allocation */ |
| 262 | struct kvm_pv_mmu_op_buffer mmu_op_buffer; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 263 | |
| 264 | struct kvm_mmu_memory_cache mmu_pte_chain_cache; |
| 265 | struct kvm_mmu_memory_cache mmu_rmap_desc_cache; |
| 266 | struct kvm_mmu_memory_cache mmu_page_cache; |
| 267 | struct kvm_mmu_memory_cache mmu_page_header_cache; |
| 268 | |
| 269 | gfn_t last_pt_write_gfn; |
| 270 | int last_pt_write_count; |
| 271 | u64 *last_pte_updated; |
Avi Kivity | 1b7fcd3 | 2008-05-15 13:51:35 +0300 | [diff] [blame] | 272 | gfn_t last_pte_gfn; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 273 | |
Avi Kivity | d7824ff | 2007-12-30 12:29:05 +0200 | [diff] [blame] | 274 | struct { |
Anthony Liguori | 35149e2 | 2008-04-02 14:46:56 -0500 | [diff] [blame] | 275 | gfn_t gfn; /* presumed gfn during guest pte update */ |
| 276 | pfn_t pfn; /* pfn corresponding to that gfn */ |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 277 | int largepage; |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 278 | unsigned long mmu_seq; |
Avi Kivity | d7824ff | 2007-12-30 12:29:05 +0200 | [diff] [blame] | 279 | } update_pte; |
| 280 | |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 281 | struct i387_fxsave_struct host_fx_image; |
| 282 | struct i387_fxsave_struct guest_fx_image; |
| 283 | |
| 284 | gva_t mmio_fault_cr2; |
| 285 | struct kvm_pio_request pio; |
| 286 | void *pio_data; |
| 287 | |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 288 | struct kvm_queued_exception { |
| 289 | bool pending; |
| 290 | bool has_error_code; |
| 291 | u8 nr; |
| 292 | u32 error_code; |
| 293 | } exception; |
| 294 | |
Avi Kivity | 937a7ea | 2008-07-03 15:17:01 +0300 | [diff] [blame] | 295 | struct kvm_queued_interrupt { |
| 296 | bool pending; |
| 297 | u8 nr; |
| 298 | } interrupt; |
| 299 | |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 300 | struct { |
| 301 | int active; |
| 302 | u8 save_iopl; |
| 303 | struct kvm_save_segment { |
| 304 | u16 selector; |
| 305 | unsigned long base; |
| 306 | u32 limit; |
| 307 | u32 ar; |
| 308 | } tr, es, ds, fs, gs; |
| 309 | } rmode; |
| 310 | int halt_request; /* real mode on Intel only */ |
| 311 | |
| 312 | int cpuid_nent; |
Dan Kenigsberg | 0771671 | 2007-11-21 17:10:04 +0200 | [diff] [blame] | 313 | struct kvm_cpuid_entry2 cpuid_entries[KVM_MAX_CPUID_ENTRIES]; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 314 | /* emulate context */ |
| 315 | |
| 316 | struct x86_emulate_ctxt emulate_ctxt; |
Glauber de Oliveira Costa | 1806852 | 2008-02-15 17:52:47 -0200 | [diff] [blame] | 317 | |
| 318 | gpa_t time; |
Gerd Hoffmann | 50d0a0f | 2008-06-03 16:17:31 +0200 | [diff] [blame] | 319 | struct pvclock_vcpu_time_info hv_clock; |
| 320 | unsigned int hv_clock_tsc_khz; |
Glauber de Oliveira Costa | 1806852 | 2008-02-15 17:52:47 -0200 | [diff] [blame] | 321 | unsigned int time_offset; |
| 322 | struct page *time_page; |
Sheng Yang | 3419ffc | 2008-05-15 09:52:48 +0800 | [diff] [blame] | 323 | |
| 324 | bool nmi_pending; |
Avi Kivity | 668f612 | 2008-07-02 09:28:55 +0300 | [diff] [blame] | 325 | bool nmi_injected; |
Avi Kivity | 9ba075a | 2008-05-26 20:06:35 +0300 | [diff] [blame] | 326 | |
| 327 | u64 mtrr[0x100]; |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 328 | }; |
| 329 | |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 330 | struct kvm_mem_alias { |
| 331 | gfn_t base_gfn; |
| 332 | unsigned long npages; |
| 333 | gfn_t target_gfn; |
| 334 | }; |
| 335 | |
| 336 | struct kvm_arch{ |
| 337 | int naliases; |
| 338 | struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS]; |
Zhang Xiantao | f05e70a | 2007-12-14 10:01:48 +0800 | [diff] [blame] | 339 | |
| 340 | unsigned int n_free_mmu_pages; |
| 341 | unsigned int n_requested_mmu_pages; |
| 342 | unsigned int n_alloc_mmu_pages; |
| 343 | struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; |
| 344 | /* |
| 345 | * Hash table of struct kvm_mmu_page. |
| 346 | */ |
| 347 | struct list_head active_mmu_pages; |
Ben-Ami Yassour | 4d5c5d0 | 2008-07-28 19:26:26 +0300 | [diff] [blame] | 348 | struct list_head assigned_dev_head; |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 349 | struct dmar_domain *intel_iommu_domain; |
Zhang Xiantao | d7deeeb | 2007-12-14 10:17:34 +0800 | [diff] [blame] | 350 | struct kvm_pic *vpic; |
| 351 | struct kvm_ioapic *vioapic; |
Sheng Yang | 7837699 | 2008-01-28 05:10:22 +0800 | [diff] [blame] | 352 | struct kvm_pit *vpit; |
Avi Kivity | 564f153 | 2008-07-26 17:00:59 -0300 | [diff] [blame] | 353 | struct hlist_head irq_ack_notifier_list; |
Zhang Xiantao | bfc6d22 | 2007-12-14 10:20:16 +0800 | [diff] [blame] | 354 | |
| 355 | int round_robin_prev_vcpu; |
| 356 | unsigned int tss_addr; |
| 357 | struct page *apic_access_page; |
Glauber de Oliveira Costa | 1806852 | 2008-02-15 17:52:47 -0200 | [diff] [blame] | 358 | |
| 359 | gpa_t wall_clock; |
Sheng Yang | b7ebfb0 | 2008-04-25 21:44:52 +0800 | [diff] [blame] | 360 | |
| 361 | struct page *ept_identity_pagetable; |
| 362 | bool ept_identity_pagetable_done; |
Zhang Xiantao | d69fb81 | 2007-12-14 09:54:20 +0800 | [diff] [blame] | 363 | }; |
| 364 | |
Zhang Xiantao | 0711456 | 2007-12-14 10:23:23 +0800 | [diff] [blame] | 365 | struct kvm_vm_stat { |
| 366 | u32 mmu_shadow_zapped; |
| 367 | u32 mmu_pte_write; |
| 368 | u32 mmu_pte_updated; |
| 369 | u32 mmu_pde_zapped; |
| 370 | u32 mmu_flooded; |
| 371 | u32 mmu_recycled; |
Avi Kivity | dfc5aa0 | 2007-12-18 19:47:18 +0200 | [diff] [blame] | 372 | u32 mmu_cache_miss; |
Zhang Xiantao | 0711456 | 2007-12-14 10:23:23 +0800 | [diff] [blame] | 373 | u32 remote_tlb_flush; |
Marcelo Tosatti | 05da455 | 2008-02-23 11:44:30 -0300 | [diff] [blame] | 374 | u32 lpages; |
Zhang Xiantao | 0711456 | 2007-12-14 10:23:23 +0800 | [diff] [blame] | 375 | }; |
| 376 | |
Zhang Xiantao | 77b4c25 | 2007-12-14 09:49:26 +0800 | [diff] [blame] | 377 | struct kvm_vcpu_stat { |
| 378 | u32 pf_fixed; |
| 379 | u32 pf_guest; |
| 380 | u32 tlb_flush; |
| 381 | u32 invlpg; |
| 382 | |
| 383 | u32 exits; |
| 384 | u32 io_exits; |
| 385 | u32 mmio_exits; |
| 386 | u32 signal_exits; |
| 387 | u32 irq_window_exits; |
Sheng Yang | f08864b | 2008-05-15 18:23:25 +0800 | [diff] [blame] | 388 | u32 nmi_window_exits; |
Zhang Xiantao | 77b4c25 | 2007-12-14 09:49:26 +0800 | [diff] [blame] | 389 | u32 halt_exits; |
| 390 | u32 halt_wakeup; |
| 391 | u32 request_irq_exits; |
| 392 | u32 irq_exits; |
| 393 | u32 host_state_reload; |
| 394 | u32 efer_reload; |
| 395 | u32 fpu_reload; |
| 396 | u32 insn_emulation; |
| 397 | u32 insn_emulation_fail; |
Amit Shah | f11c3a8 | 2008-02-21 01:00:30 +0530 | [diff] [blame] | 398 | u32 hypercalls; |
Avi Kivity | fa89a81 | 2008-09-01 15:57:51 +0300 | [diff] [blame] | 399 | u32 irq_injections; |
Zhang Xiantao | 77b4c25 | 2007-12-14 09:49:26 +0800 | [diff] [blame] | 400 | }; |
Zhang Xiantao | ad312c7 | 2007-12-13 23:50:52 +0800 | [diff] [blame] | 401 | |
Hollis Blanchard | e01a1b5 | 2007-12-03 15:30:25 -0600 | [diff] [blame] | 402 | struct descriptor_table { |
| 403 | u16 limit; |
| 404 | unsigned long base; |
| 405 | } __attribute__((packed)); |
| 406 | |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 407 | struct kvm_x86_ops { |
| 408 | int (*cpu_has_kvm_support)(void); /* __init */ |
| 409 | int (*disabled_by_bios)(void); /* __init */ |
| 410 | void (*hardware_enable)(void *dummy); /* __init */ |
| 411 | void (*hardware_disable)(void *dummy); |
| 412 | void (*check_processor_compatibility)(void *rtn); |
| 413 | int (*hardware_setup)(void); /* __init */ |
| 414 | void (*hardware_unsetup)(void); /* __exit */ |
Avi Kivity | 774ead3 | 2007-12-26 13:57:04 +0200 | [diff] [blame] | 415 | bool (*cpu_has_accelerated_tpr)(void); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 416 | |
| 417 | /* Create, but do not attach this VCPU */ |
| 418 | struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id); |
| 419 | void (*vcpu_free)(struct kvm_vcpu *vcpu); |
| 420 | int (*vcpu_reset)(struct kvm_vcpu *vcpu); |
| 421 | |
| 422 | void (*prepare_guest_switch)(struct kvm_vcpu *vcpu); |
| 423 | void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu); |
| 424 | void (*vcpu_put)(struct kvm_vcpu *vcpu); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 425 | |
| 426 | int (*set_guest_debug)(struct kvm_vcpu *vcpu, |
| 427 | struct kvm_debug_guest *dbg); |
| 428 | void (*guest_debug_pre)(struct kvm_vcpu *vcpu); |
| 429 | int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata); |
| 430 | int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); |
| 431 | u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg); |
| 432 | void (*get_segment)(struct kvm_vcpu *vcpu, |
| 433 | struct kvm_segment *var, int seg); |
Izik Eidus | 2e4d265 | 2008-03-24 19:38:34 +0200 | [diff] [blame] | 434 | int (*get_cpl)(struct kvm_vcpu *vcpu); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 435 | void (*set_segment)(struct kvm_vcpu *vcpu, |
| 436 | struct kvm_segment *var, int seg); |
| 437 | void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l); |
| 438 | void (*decache_cr4_guest_bits)(struct kvm_vcpu *vcpu); |
| 439 | void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0); |
| 440 | void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3); |
| 441 | void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4); |
| 442 | void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer); |
| 443 | void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 444 | void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 445 | void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 446 | void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt); |
| 447 | unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr); |
| 448 | void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value, |
| 449 | int *exception); |
Marcelo Tosatti | 5fdbf97 | 2008-06-27 14:58:02 -0300 | [diff] [blame] | 450 | void (*cache_reg)(struct kvm_vcpu *vcpu, enum kvm_reg reg); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 451 | unsigned long (*get_rflags)(struct kvm_vcpu *vcpu); |
| 452 | void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags); |
| 453 | |
| 454 | void (*tlb_flush)(struct kvm_vcpu *vcpu); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 455 | |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 456 | void (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run); |
| 457 | int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu); |
| 458 | void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu); |
| 459 | void (*patch_hypercall)(struct kvm_vcpu *vcpu, |
| 460 | unsigned char *hypercall_addr); |
| 461 | int (*get_irq)(struct kvm_vcpu *vcpu); |
| 462 | void (*set_irq)(struct kvm_vcpu *vcpu, int vec); |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 463 | void (*queue_exception)(struct kvm_vcpu *vcpu, unsigned nr, |
| 464 | bool has_error_code, u32 error_code); |
| 465 | bool (*exception_injected)(struct kvm_vcpu *vcpu); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 466 | void (*inject_pending_irq)(struct kvm_vcpu *vcpu); |
| 467 | void (*inject_pending_vectors)(struct kvm_vcpu *vcpu, |
| 468 | struct kvm_run *run); |
| 469 | |
| 470 | int (*set_tss_addr)(struct kvm *kvm, unsigned int addr); |
Sheng Yang | 67253af | 2008-04-25 10:20:22 +0800 | [diff] [blame] | 471 | int (*get_tdp_level)(void); |
Zhang Xiantao | ea4a5ff | 2007-11-19 14:40:47 +0800 | [diff] [blame] | 472 | }; |
| 473 | |
Zhang Xiantao | 97896d0 | 2007-11-14 20:09:30 +0800 | [diff] [blame] | 474 | extern struct kvm_x86_ops *kvm_x86_ops; |
| 475 | |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 476 | int kvm_mmu_module_init(void); |
| 477 | void kvm_mmu_module_exit(void); |
| 478 | |
| 479 | void kvm_mmu_destroy(struct kvm_vcpu *vcpu); |
| 480 | int kvm_mmu_create(struct kvm_vcpu *vcpu); |
| 481 | int kvm_mmu_setup(struct kvm_vcpu *vcpu); |
| 482 | void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte); |
Sheng Yang | 7b52345 | 2008-04-25 21:13:50 +0800 | [diff] [blame] | 483 | void kvm_mmu_set_base_ptes(u64 base_pte); |
| 484 | void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask, |
| 485 | u64 dirty_mask, u64 nx_mask, u64 x_mask); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 486 | |
| 487 | int kvm_mmu_reset_context(struct kvm_vcpu *vcpu); |
| 488 | void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot); |
| 489 | void kvm_mmu_zap_all(struct kvm *kvm); |
Zhang Xiantao | 3ad82a7 | 2007-11-20 13:11:38 +0800 | [diff] [blame] | 490 | unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 491 | void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages); |
| 492 | |
Joerg Roedel | cc4b687 | 2008-02-07 13:47:43 +0100 | [diff] [blame] | 493 | int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); |
| 494 | |
Marcelo Tosatti | 3200f40 | 2008-03-29 20:17:59 -0300 | [diff] [blame] | 495 | int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa, |
Avi Kivity | 9f81128 | 2008-03-02 14:06:05 +0200 | [diff] [blame] | 496 | const void *val, int bytes); |
Marcelo Tosatti | 2f333bc | 2008-02-22 12:21:37 -0500 | [diff] [blame] | 497 | int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes, |
| 498 | gpa_t addr, unsigned long *ret); |
| 499 | |
Ben-Ami Yassour | 62c476c | 2008-09-14 03:48:28 +0300 | [diff] [blame] | 500 | int is_mmio_pfn(pfn_t pfn); |
| 501 | |
Marcelo Tosatti | 2f333bc | 2008-02-22 12:21:37 -0500 | [diff] [blame] | 502 | extern bool tdp_enabled; |
Avi Kivity | 9f81128 | 2008-03-02 14:06:05 +0200 | [diff] [blame] | 503 | |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 504 | enum emulation_result { |
| 505 | EMULATE_DONE, /* no further processing */ |
| 506 | EMULATE_DO_MMIO, /* kvm_run filled with mmio request */ |
| 507 | EMULATE_FAIL, /* can't emulate this instruction */ |
| 508 | }; |
| 509 | |
Sheng Yang | 571008d | 2008-01-02 14:49:22 +0800 | [diff] [blame] | 510 | #define EMULTYPE_NO_DECODE (1 << 0) |
| 511 | #define EMULTYPE_TRAP_UD (1 << 1) |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 512 | int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run, |
Sheng Yang | 571008d | 2008-01-02 14:49:22 +0800 | [diff] [blame] | 513 | unsigned long cr2, u16 error_code, int emulation_type); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 514 | void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context); |
| 515 | void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); |
| 516 | void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address); |
| 517 | void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw, |
| 518 | unsigned long *rflags); |
| 519 | |
| 520 | unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr); |
| 521 | void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value, |
| 522 | unsigned long *rflags); |
Joerg Roedel | f2b4b7d | 2008-01-31 14:57:37 +0100 | [diff] [blame] | 523 | void kvm_enable_efer_bits(u64); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 524 | int kvm_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *data); |
| 525 | int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data); |
| 526 | |
| 527 | struct x86_emulate_ctxt; |
| 528 | |
| 529 | int kvm_emulate_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, |
| 530 | int size, unsigned port); |
| 531 | int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in, |
| 532 | int size, unsigned long count, int down, |
| 533 | gva_t address, int rep, unsigned port); |
| 534 | void kvm_emulate_cpuid(struct kvm_vcpu *vcpu); |
| 535 | int kvm_emulate_halt(struct kvm_vcpu *vcpu); |
| 536 | int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address); |
| 537 | int emulate_clts(struct kvm_vcpu *vcpu); |
| 538 | int emulator_get_dr(struct x86_emulate_ctxt *ctxt, int dr, |
| 539 | unsigned long *dest); |
| 540 | int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr, |
| 541 | unsigned long value); |
| 542 | |
Guillaume Thouvenin | 3e6e0aa | 2008-05-27 10:18:46 +0200 | [diff] [blame] | 543 | void kvm_get_segment(struct kvm_vcpu *vcpu, struct kvm_segment *var, int seg); |
| 544 | int kvm_load_segment_descriptor(struct kvm_vcpu *vcpu, u16 selector, |
| 545 | int type_bits, int seg); |
| 546 | |
Izik Eidus | 37817f2 | 2008-03-24 23:14:53 +0200 | [diff] [blame] | 547 | int kvm_task_switch(struct kvm_vcpu *vcpu, u16 tss_selector, int reason); |
| 548 | |
Avi Kivity | 2d3ad1f | 2008-02-24 11:20:43 +0200 | [diff] [blame] | 549 | void kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0); |
Joerg Roedel | 9c20456 | 2008-04-01 16:44:56 +0200 | [diff] [blame] | 550 | void kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3); |
| 551 | void kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4); |
| 552 | void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8); |
Avi Kivity | 2d3ad1f | 2008-02-24 11:20:43 +0200 | [diff] [blame] | 553 | unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu); |
| 554 | void kvm_lmsw(struct kvm_vcpu *vcpu, unsigned long msw); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 555 | void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l); |
| 556 | |
| 557 | int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata); |
| 558 | int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data); |
| 559 | |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 560 | void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr); |
| 561 | void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code); |
Avi Kivity | c3c91fe | 2007-11-25 14:04:58 +0200 | [diff] [blame] | 562 | void kvm_inject_page_fault(struct kvm_vcpu *vcpu, unsigned long cr2, |
| 563 | u32 error_code); |
Avi Kivity | 298101d | 2007-11-25 13:41:11 +0200 | [diff] [blame] | 564 | |
Sheng Yang | 3419ffc | 2008-05-15 09:52:48 +0800 | [diff] [blame] | 565 | void kvm_inject_nmi(struct kvm_vcpu *vcpu); |
| 566 | |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 567 | void fx_init(struct kvm_vcpu *vcpu); |
| 568 | |
| 569 | int emulator_read_std(unsigned long addr, |
| 570 | void *val, |
| 571 | unsigned int bytes, |
| 572 | struct kvm_vcpu *vcpu); |
| 573 | int emulator_write_emulated(unsigned long addr, |
| 574 | const void *val, |
| 575 | unsigned int bytes, |
| 576 | struct kvm_vcpu *vcpu); |
| 577 | |
| 578 | unsigned long segment_base(u16 selector); |
| 579 | |
Avi Kivity | d835dfe | 2007-11-21 02:57:59 +0200 | [diff] [blame] | 580 | void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 581 | void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa, |
| 582 | const u8 *new, int bytes); |
| 583 | int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva); |
| 584 | void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); |
| 585 | int kvm_mmu_load(struct kvm_vcpu *vcpu); |
| 586 | void kvm_mmu_unload(struct kvm_vcpu *vcpu); |
Marcelo Tosatti | 0ba73cd | 2008-09-23 13:18:34 -0300 | [diff] [blame^] | 587 | void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu); |
Zhang Xiantao | 54f1585 | 2007-11-19 15:24:28 +0800 | [diff] [blame] | 588 | |
| 589 | int kvm_emulate_hypercall(struct kvm_vcpu *vcpu); |
| 590 | |
| 591 | int kvm_fix_hypercall(struct kvm_vcpu *vcpu); |
| 592 | |
Avi Kivity | 3067714 | 2007-10-28 18:48:59 +0200 | [diff] [blame] | 593 | int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u32 error_code); |
Zhang Xiantao | 34c16ee | 2007-10-20 15:34:38 +0800 | [diff] [blame] | 594 | |
Joerg Roedel | 1855267 | 2008-02-07 13:47:41 +0100 | [diff] [blame] | 595 | void kvm_enable_tdp(void); |
Joerg Roedel | 5f4cb66 | 2008-07-14 20:36:36 +0200 | [diff] [blame] | 596 | void kvm_disable_tdp(void); |
Joerg Roedel | 1855267 | 2008-02-07 13:47:41 +0100 | [diff] [blame] | 597 | |
Carsten Otte | a03490e | 2007-10-29 16:09:35 +0100 | [diff] [blame] | 598 | int load_pdptrs(struct kvm_vcpu *vcpu, unsigned long cr3); |
Carsten Otte | de7d789 | 2007-10-30 18:44:25 +0100 | [diff] [blame] | 599 | int complete_pio(struct kvm_vcpu *vcpu); |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 600 | |
| 601 | static inline struct kvm_mmu_page *page_header(hpa_t shadow_page) |
| 602 | { |
| 603 | struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT); |
| 604 | |
| 605 | return (struct kvm_mmu_page *)page_private(page); |
| 606 | } |
| 607 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 608 | static inline u16 kvm_read_fs(void) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 609 | { |
| 610 | u16 seg; |
| 611 | asm("mov %%fs, %0" : "=g"(seg)); |
| 612 | return seg; |
| 613 | } |
| 614 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 615 | static inline u16 kvm_read_gs(void) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 616 | { |
| 617 | u16 seg; |
| 618 | asm("mov %%gs, %0" : "=g"(seg)); |
| 619 | return seg; |
| 620 | } |
| 621 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 622 | static inline u16 kvm_read_ldt(void) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 623 | { |
| 624 | u16 ldt; |
| 625 | asm("sldt %0" : "=g"(ldt)); |
| 626 | return ldt; |
| 627 | } |
| 628 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 629 | static inline void kvm_load_fs(u16 sel) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 630 | { |
| 631 | asm("mov %0, %%fs" : : "rm"(sel)); |
| 632 | } |
| 633 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 634 | static inline void kvm_load_gs(u16 sel) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 635 | { |
| 636 | asm("mov %0, %%gs" : : "rm"(sel)); |
| 637 | } |
| 638 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 639 | static inline void kvm_load_ldt(u16 sel) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 640 | { |
| 641 | asm("lldt %0" : : "rm"(sel)); |
| 642 | } |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 643 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 644 | static inline void kvm_get_idt(struct descriptor_table *table) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 645 | { |
| 646 | asm("sidt %0" : "=m"(*table)); |
| 647 | } |
| 648 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 649 | static inline void kvm_get_gdt(struct descriptor_table *table) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 650 | { |
| 651 | asm("sgdt %0" : "=m"(*table)); |
| 652 | } |
| 653 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 654 | static inline unsigned long kvm_read_tr_base(void) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 655 | { |
| 656 | u16 tr; |
| 657 | asm("str %0" : "=g"(tr)); |
| 658 | return segment_base(tr); |
| 659 | } |
| 660 | |
| 661 | #ifdef CONFIG_X86_64 |
| 662 | static inline unsigned long read_msr(unsigned long msr) |
| 663 | { |
| 664 | u64 value; |
| 665 | |
| 666 | rdmsrl(msr, value); |
| 667 | return value; |
| 668 | } |
| 669 | #endif |
| 670 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 671 | static inline void kvm_fx_save(struct i387_fxsave_struct *image) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 672 | { |
| 673 | asm("fxsave (%0)":: "r" (image)); |
| 674 | } |
| 675 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 676 | static inline void kvm_fx_restore(struct i387_fxsave_struct *image) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 677 | { |
| 678 | asm("fxrstor (%0)":: "r" (image)); |
| 679 | } |
| 680 | |
Avi Kivity | d6e88ae | 2008-07-10 16:53:33 +0300 | [diff] [blame] | 681 | static inline void kvm_fx_finit(void) |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 682 | { |
| 683 | asm("finit"); |
| 684 | } |
| 685 | |
| 686 | static inline u32 get_rdx_init_val(void) |
| 687 | { |
| 688 | return 0x600; /* P6 family */ |
| 689 | } |
| 690 | |
Avi Kivity | c1a5d4f | 2007-11-25 14:12:03 +0200 | [diff] [blame] | 691 | static inline void kvm_inject_gp(struct kvm_vcpu *vcpu, u32 error_code) |
| 692 | { |
| 693 | kvm_queue_exception_e(vcpu, GP_VECTOR, error_code); |
| 694 | } |
| 695 | |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 696 | #define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30" |
| 697 | #define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2" |
| 698 | #define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3" |
| 699 | #define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30" |
| 700 | #define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0" |
| 701 | #define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0" |
| 702 | #define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4" |
| 703 | #define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4" |
| 704 | #define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30" |
Sheng Yang | 1439442 | 2008-04-28 12:24:45 +0800 | [diff] [blame] | 705 | #define ASM_VMX_INVEPT ".byte 0x66, 0x0f, 0x38, 0x80, 0x08" |
Sheng Yang | 2384d2b | 2008-01-17 15:14:33 +0800 | [diff] [blame] | 706 | #define ASM_VMX_INVVPID ".byte 0x66, 0x0f, 0x38, 0x81, 0x08" |
Zhang Xiantao | ec6d273 | 2007-11-19 15:08:31 +0800 | [diff] [blame] | 707 | |
| 708 | #define MSR_IA32_TIME_STAMP_COUNTER 0x010 |
| 709 | |
| 710 | #define TSS_IOPB_BASE_OFFSET 0x66 |
| 711 | #define TSS_BASE_SIZE 0x68 |
| 712 | #define TSS_IOPB_SIZE (65536 / 8) |
| 713 | #define TSS_REDIRECTION_SIZE (256 / 8) |
Joe Perches | 7d76b4d | 2008-03-23 01:02:34 -0700 | [diff] [blame] | 714 | #define RMODE_TSS_SIZE \ |
| 715 | (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1) |
Hollis Blanchard | 53e0aa7 | 2007-12-03 16:15:26 -0600 | [diff] [blame] | 716 | |
Izik Eidus | 37817f2 | 2008-03-24 23:14:53 +0200 | [diff] [blame] | 717 | enum { |
| 718 | TASK_SWITCH_CALL = 0, |
| 719 | TASK_SWITCH_IRET = 1, |
| 720 | TASK_SWITCH_JMP = 2, |
| 721 | TASK_SWITCH_GATE = 3, |
| 722 | }; |
| 723 | |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 724 | /* |
| 725 | * Hardware virtualization extension instructions may fault if a |
| 726 | * reboot turns off virtualization while processes are running. |
| 727 | * Trap the fault and ignore the instruction if that happens. |
| 728 | */ |
| 729 | asmlinkage void kvm_handle_fault_on_reboot(void); |
| 730 | |
| 731 | #define __kvm_handle_fault_on_reboot(insn) \ |
| 732 | "666: " insn "\n\t" \ |
Eduardo Habkost | 18b13e5 | 2008-08-19 20:00:08 -0300 | [diff] [blame] | 733 | ".pushsection .fixup, \"ax\" \n" \ |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 734 | "667: \n\t" \ |
Avi Kivity | 8ceed347 | 2008-08-14 21:25:47 +0300 | [diff] [blame] | 735 | __ASM_SIZE(push) " $666b \n\t" \ |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 736 | "jmp kvm_handle_fault_on_reboot \n\t" \ |
| 737 | ".popsection \n\t" \ |
| 738 | ".pushsection __ex_table, \"a\" \n\t" \ |
Avi Kivity | 8ceed347 | 2008-08-14 21:25:47 +0300 | [diff] [blame] | 739 | _ASM_PTR " 666b, 667b \n\t" \ |
Avi Kivity | 4ecac3f | 2008-05-13 13:23:38 +0300 | [diff] [blame] | 740 | ".popsection" |
| 741 | |
Andrea Arcangeli | e930bff | 2008-07-25 16:24:52 +0200 | [diff] [blame] | 742 | #define KVM_ARCH_WANT_MMU_NOTIFIER |
| 743 | int kvm_unmap_hva(struct kvm *kvm, unsigned long hva); |
| 744 | int kvm_age_hva(struct kvm *kvm, unsigned long hva); |
| 745 | |
Vegard Nossum | 77ef50a | 2008-06-18 17:08:48 +0200 | [diff] [blame] | 746 | #endif /* ASM_X86__KVM_HOST_H */ |