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-rw-r--r--drivers/kvm/kvm.h551
1 files changed, 0 insertions, 551 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
deleted file mode 100644
index 930e04ce1af..00000000000
--- a/drivers/kvm/kvm.h
+++ /dev/null
@@ -1,551 +0,0 @@
-#ifndef __KVM_H
-#define __KVM_H
-
-/*
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- */
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/mutex.h>
-#include <linux/spinlock.h>
-#include <linux/mm.h>
-
-#include "vmx.h"
-#include <linux/kvm.h>
-
-#define CR0_PE_MASK (1ULL << 0)
-#define CR0_TS_MASK (1ULL << 3)
-#define CR0_NE_MASK (1ULL << 5)
-#define CR0_WP_MASK (1ULL << 16)
-#define CR0_NW_MASK (1ULL << 29)
-#define CR0_CD_MASK (1ULL << 30)
-#define CR0_PG_MASK (1ULL << 31)
-
-#define CR3_WPT_MASK (1ULL << 3)
-#define CR3_PCD_MASK (1ULL << 4)
-
-#define CR3_RESEVED_BITS 0x07ULL
-#define CR3_L_MODE_RESEVED_BITS (~((1ULL << 40) - 1) | 0x0fe7ULL)
-#define CR3_FLAGS_MASK ((1ULL << 5) - 1)
-
-#define CR4_VME_MASK (1ULL << 0)
-#define CR4_PSE_MASK (1ULL << 4)
-#define CR4_PAE_MASK (1ULL << 5)
-#define CR4_PGE_MASK (1ULL << 7)
-#define CR4_VMXE_MASK (1ULL << 13)
-
-#define KVM_GUEST_CR0_MASK \
- (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \
- | CR0_NW_MASK | CR0_CD_MASK)
-#define KVM_VM_CR0_ALWAYS_ON \
- (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK)
-#define KVM_GUEST_CR4_MASK \
- (CR4_PSE_MASK | CR4_PAE_MASK | CR4_PGE_MASK | CR4_VMXE_MASK | CR4_VME_MASK)
-#define KVM_PMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK)
-#define KVM_RMODE_VM_CR4_ALWAYS_ON (CR4_VMXE_MASK | CR4_PAE_MASK | CR4_VME_MASK)
-
-#define INVALID_PAGE (~(hpa_t)0)
-#define UNMAPPED_GVA (~(gpa_t)0)
-
-#define KVM_MAX_VCPUS 1
-#define KVM_MEMORY_SLOTS 4
-#define KVM_NUM_MMU_PAGES 256
-
-#define FX_IMAGE_SIZE 512
-#define FX_IMAGE_ALIGN 16
-#define FX_BUF_SIZE (2 * FX_IMAGE_SIZE + FX_IMAGE_ALIGN)
-
-#define DE_VECTOR 0
-#define DF_VECTOR 8
-#define TS_VECTOR 10
-#define NP_VECTOR 11
-#define SS_VECTOR 12
-#define GP_VECTOR 13
-#define PF_VECTOR 14
-
-#define SELECTOR_TI_MASK (1 << 2)
-#define SELECTOR_RPL_MASK 0x03
-
-#define IOPL_SHIFT 12
-
-/*
- * Address types:
- *
- * gva - guest virtual address
- * gpa - guest physical address
- * gfn - guest frame number
- * hva - host virtual address
- * hpa - host physical address
- * hfn - host frame number
- */
-
-typedef unsigned long gva_t;
-typedef u64 gpa_t;
-typedef unsigned long gfn_t;
-
-typedef unsigned long hva_t;
-typedef u64 hpa_t;
-typedef unsigned long hfn_t;
-
-struct kvm_mmu_page {
- struct list_head link;
- hpa_t page_hpa;
- unsigned long slot_bitmap; /* One bit set per slot which has memory
- * in this shadow page.
- */
- int global; /* Set if all ptes in this page are global */
- u64 *parent_pte;
-};
-
-struct vmcs {
- u32 revision_id;
- u32 abort;
- char data[0];
-};
-
-#define vmx_msr_entry kvm_msr_entry
-
-struct kvm_vcpu;
-
-/*
- * x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
- * 32-bit). The kvm_mmu structure abstracts the details of the current mmu
- * mode.
- */
-struct kvm_mmu {
- void (*new_cr3)(struct kvm_vcpu *vcpu);
- int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
- void (*inval_page)(struct kvm_vcpu *vcpu, gva_t gva);
- void (*free)(struct kvm_vcpu *vcpu);
- gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva);
- hpa_t root_hpa;
- int root_level;
- int shadow_root_level;
-};
-
-struct kvm_guest_debug {
- int enabled;
- unsigned long bp[4];
- int singlestep;
-};
-
-enum {
- VCPU_REGS_RAX = 0,
- VCPU_REGS_RCX = 1,
- VCPU_REGS_RDX = 2,
- VCPU_REGS_RBX = 3,
- VCPU_REGS_RSP = 4,
- VCPU_REGS_RBP = 5,
- VCPU_REGS_RSI = 6,
- VCPU_REGS_RDI = 7,
-#ifdef CONFIG_X86_64
- VCPU_REGS_R8 = 8,
- VCPU_REGS_R9 = 9,
- VCPU_REGS_R10 = 10,
- VCPU_REGS_R11 = 11,
- VCPU_REGS_R12 = 12,
- VCPU_REGS_R13 = 13,
- VCPU_REGS_R14 = 14,
- VCPU_REGS_R15 = 15,
-#endif
- NR_VCPU_REGS
-};
-
-enum {
- VCPU_SREG_CS,
- VCPU_SREG_DS,
- VCPU_SREG_ES,
- VCPU_SREG_FS,
- VCPU_SREG_GS,
- VCPU_SREG_SS,
- VCPU_SREG_TR,
- VCPU_SREG_LDTR,
-};
-
-struct kvm_vcpu {
- struct kvm *kvm;
- union {
- struct vmcs *vmcs;
- struct vcpu_svm *svm;
- };
- struct mutex mutex;
- int cpu;
- int launched;
- unsigned long irq_summary; /* bit vector: 1 per word in irq_pending */
-#define NR_IRQ_WORDS KVM_IRQ_BITMAP_SIZE(unsigned long)
- unsigned long irq_pending[NR_IRQ_WORDS];
- unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
- unsigned long rip; /* needs vcpu_load_rsp_rip() */
-
- unsigned long cr0;
- unsigned long cr2;
- unsigned long cr3;
- unsigned long cr4;
- unsigned long cr8;
- u64 shadow_efer;
- u64 apic_base;
- int nmsrs;
- struct vmx_msr_entry *guest_msrs;
- struct vmx_msr_entry *host_msrs;
-
- struct list_head free_pages;
- struct kvm_mmu_page page_header_buf[KVM_NUM_MMU_PAGES];
- struct kvm_mmu mmu;
-
- struct kvm_guest_debug guest_debug;
-
- char fx_buf[FX_BUF_SIZE];
- char *host_fx_image;
- char *guest_fx_image;
-
- int mmio_needed;
- int mmio_read_completed;
- int mmio_is_write;
- int mmio_size;
- unsigned char mmio_data[8];
- gpa_t mmio_phys_addr;
-
- struct {
- int active;
- u8 save_iopl;
- struct kvm_save_segment {
- u16 selector;
- unsigned long base;
- u32 limit;
- u32 ar;
- } tr, es, ds, fs, gs;
- } rmode;
-};
-
-struct kvm_memory_slot {
- gfn_t base_gfn;
- unsigned long npages;
- unsigned long flags;
- struct page **phys_mem;
- unsigned long *dirty_bitmap;
-};
-
-struct kvm {
- spinlock_t lock; /* protects everything except vcpus */
- int nmemslots;
- struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS];
- struct list_head active_mmu_pages;
- struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
- int memory_config_version;
- int busy;
-};
-
-struct kvm_stat {
- u32 pf_fixed;
- u32 pf_guest;
- u32 tlb_flush;
- u32 invlpg;
-
- u32 exits;
- u32 io_exits;
- u32 mmio_exits;
- u32 signal_exits;
- u32 irq_exits;
-};
-
-struct descriptor_table {
- u16 limit;
- unsigned long base;
-} __attribute__((packed));
-
-struct kvm_arch_ops {
- int (*cpu_has_kvm_support)(void); /* __init */
- int (*disabled_by_bios)(void); /* __init */
- void (*hardware_enable)(void *dummy); /* __init */
- void (*hardware_disable)(void *dummy);
- int (*hardware_setup)(void); /* __init */
- void (*hardware_unsetup)(void); /* __exit */
-
- int (*vcpu_create)(struct kvm_vcpu *vcpu);
- void (*vcpu_free)(struct kvm_vcpu *vcpu);
-
- struct kvm_vcpu *(*vcpu_load)(struct kvm_vcpu *vcpu);
- void (*vcpu_put)(struct kvm_vcpu *vcpu);
-
- int (*set_guest_debug)(struct kvm_vcpu *vcpu,
- struct kvm_debug_guest *dbg);
- int (*get_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata);
- int (*set_msr)(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
- u64 (*get_segment_base)(struct kvm_vcpu *vcpu, int seg);
- void (*get_segment)(struct kvm_vcpu *vcpu,
- struct kvm_segment *var, int seg);
- void (*set_segment)(struct kvm_vcpu *vcpu,
- struct kvm_segment *var, int seg);
- int (*is_long_mode)(struct kvm_vcpu *vcpu);
- void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
- void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
- void (*set_cr0_no_modeswitch)(struct kvm_vcpu *vcpu,
- unsigned long cr0);
- void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long cr3);
- void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
- void (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
- void (*get_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*set_idt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*get_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- void (*set_gdt)(struct kvm_vcpu *vcpu, struct descriptor_table *dt);
- unsigned long (*get_dr)(struct kvm_vcpu *vcpu, int dr);
- void (*set_dr)(struct kvm_vcpu *vcpu, int dr, unsigned long value,
- int *exception);
- void (*cache_regs)(struct kvm_vcpu *vcpu);
- void (*decache_regs)(struct kvm_vcpu *vcpu);
- unsigned long (*get_rflags)(struct kvm_vcpu *vcpu);
- void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
-
- void (*invlpg)(struct kvm_vcpu *vcpu, gva_t addr);
- void (*tlb_flush)(struct kvm_vcpu *vcpu);
- void (*inject_page_fault)(struct kvm_vcpu *vcpu,
- unsigned long addr, u32 err_code);
-
- void (*inject_gp)(struct kvm_vcpu *vcpu, unsigned err_code);
-
- int (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
- int (*vcpu_setup)(struct kvm_vcpu *vcpu);
- void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
-};
-
-extern struct kvm_stat kvm_stat;
-extern struct kvm_arch_ops *kvm_arch_ops;
-
-#define kvm_printf(kvm, fmt ...) printk(KERN_DEBUG fmt)
-#define vcpu_printf(vcpu, fmt...) kvm_printf(vcpu->kvm, fmt)
-
-int kvm_init_arch(struct kvm_arch_ops *ops, struct module *module);
-void kvm_exit_arch(void);
-
-void kvm_mmu_destroy(struct kvm_vcpu *vcpu);
-int kvm_mmu_init(struct kvm_vcpu *vcpu);
-
-int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
-void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
-
-hpa_t gpa_to_hpa(struct kvm_vcpu *vcpu, gpa_t gpa);
-#define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
-#define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
-static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
-hpa_t gva_to_hpa(struct kvm_vcpu *vcpu, gva_t gva);
-
-void kvm_emulator_want_group7_invlpg(void);
-
-extern hpa_t bad_page_address;
-
-static inline struct page *gfn_to_page(struct kvm_memory_slot *slot, gfn_t gfn)
-{
- return slot->phys_mem[gfn - slot->base_gfn];
-}
-
-struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn);
-void mark_page_dirty(struct kvm *kvm, gfn_t gfn);
-
-enum emulation_result {
- EMULATE_DONE, /* no further processing */
- EMULATE_DO_MMIO, /* kvm_run filled with mmio request */
- EMULATE_FAIL, /* can't emulate this instruction */
-};
-
-int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
- unsigned long cr2, u16 error_code);
-void realmode_lgdt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lidt(struct kvm_vcpu *vcpu, u16 size, unsigned long address);
-void realmode_lmsw(struct kvm_vcpu *vcpu, unsigned long msw,
- unsigned long *rflags);
-
-unsigned long realmode_get_cr(struct kvm_vcpu *vcpu, int cr);
-void realmode_set_cr(struct kvm_vcpu *vcpu, int cr, unsigned long value,
- unsigned long *rflags);
-
-struct x86_emulate_ctxt;
-
-int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
-int emulate_clts(struct kvm_vcpu *vcpu);
-int emulator_get_dr(struct x86_emulate_ctxt* ctxt, int dr,
- unsigned long *dest);
-int emulator_set_dr(struct x86_emulate_ctxt *ctxt, int dr,
- unsigned long value);
-
-void set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr3(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr4(struct kvm_vcpu *vcpu, unsigned long cr0);
-void set_cr8(struct kvm_vcpu *vcpu, unsigned long cr0);
-void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
-
-#ifdef CONFIG_X86_64
-void set_efer(struct kvm_vcpu *vcpu, u64 efer);
-#endif
-
-void fx_init(struct kvm_vcpu *vcpu);
-
-void load_msrs(struct vmx_msr_entry *e, int n);
-void save_msrs(struct vmx_msr_entry *e, int n);
-void kvm_resched(struct kvm_vcpu *vcpu);
-
-int kvm_read_guest(struct kvm_vcpu *vcpu,
- gva_t addr,
- unsigned long size,
- void *dest);
-
-int kvm_write_guest(struct kvm_vcpu *vcpu,
- gva_t addr,
- unsigned long size,
- void *data);
-
-unsigned long segment_base(u16 selector);
-
-static inline struct page *_gfn_to_page(struct kvm *kvm, gfn_t gfn)
-{
- struct kvm_memory_slot *slot = gfn_to_memslot(kvm, gfn);
- return (slot) ? slot->phys_mem[gfn - slot->base_gfn] : NULL;
-}
-
-static inline int is_pae(struct kvm_vcpu *vcpu)
-{
- return vcpu->cr4 & CR4_PAE_MASK;
-}
-
-static inline int is_pse(struct kvm_vcpu *vcpu)
-{
- return vcpu->cr4 & CR4_PSE_MASK;
-}
-
-static inline int is_paging(struct kvm_vcpu *vcpu)
-{
- return vcpu->cr0 & CR0_PG_MASK;
-}
-
-static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
-{
- return slot - kvm->memslots;
-}
-
-static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
-{
- struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
-
- return (struct kvm_mmu_page *)page->private;
-}
-
-static inline u16 read_fs(void)
-{
- u16 seg;
- asm ("mov %%fs, %0" : "=g"(seg));
- return seg;
-}
-
-static inline u16 read_gs(void)
-{
- u16 seg;
- asm ("mov %%gs, %0" : "=g"(seg));
- return seg;
-}
-
-static inline u16 read_ldt(void)
-{
- u16 ldt;
- asm ("sldt %0" : "=g"(ldt));
- return ldt;
-}
-
-static inline void load_fs(u16 sel)
-{
- asm ("mov %0, %%fs" : : "rm"(sel));
-}
-
-static inline void load_gs(u16 sel)
-{
- asm ("mov %0, %%gs" : : "rm"(sel));
-}
-
-#ifndef load_ldt
-static inline void load_ldt(u16 sel)
-{
- asm ("lldt %0" : : "g"(sel));
-}
-#endif
-
-static inline void get_idt(struct descriptor_table *table)
-{
- asm ("sidt %0" : "=m"(*table));
-}
-
-static inline void get_gdt(struct descriptor_table *table)
-{
- asm ("sgdt %0" : "=m"(*table));
-}
-
-static inline unsigned long read_tr_base(void)
-{
- u16 tr;
- asm ("str %0" : "=g"(tr));
- return segment_base(tr);
-}
-
-#ifdef CONFIG_X86_64
-static inline unsigned long read_msr(unsigned long msr)
-{
- u64 value;
-
- rdmsrl(msr, value);
- return value;
-}
-#endif
-
-static inline void fx_save(void *image)
-{
- asm ("fxsave (%0)":: "r" (image));
-}
-
-static inline void fx_restore(void *image)
-{
- asm ("fxrstor (%0)":: "r" (image));
-}
-
-static inline void fpu_init(void)
-{
- asm ("finit");
-}
-
-static inline u32 get_rdx_init_val(void)
-{
- return 0x600; /* P6 family */
-}
-
-#define ASM_VMX_VMCLEAR_RAX ".byte 0x66, 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMLAUNCH ".byte 0x0f, 0x01, 0xc2"
-#define ASM_VMX_VMRESUME ".byte 0x0f, 0x01, 0xc3"
-#define ASM_VMX_VMPTRLD_RAX ".byte 0x0f, 0xc7, 0x30"
-#define ASM_VMX_VMREAD_RDX_RAX ".byte 0x0f, 0x78, 0xd0"
-#define ASM_VMX_VMWRITE_RAX_RDX ".byte 0x0f, 0x79, 0xd0"
-#define ASM_VMX_VMWRITE_RSP_RDX ".byte 0x0f, 0x79, 0xd4"
-#define ASM_VMX_VMXOFF ".byte 0x0f, 0x01, 0xc4"
-#define ASM_VMX_VMXON_RAX ".byte 0xf3, 0x0f, 0xc7, 0x30"
-
-#define MSR_IA32_TIME_STAMP_COUNTER 0x010
-
-#define TSS_IOPB_BASE_OFFSET 0x66
-#define TSS_BASE_SIZE 0x68
-#define TSS_IOPB_SIZE (65536 / 8)
-#define TSS_REDIRECTION_SIZE (256 / 8)
-#define RMODE_TSS_SIZE (TSS_BASE_SIZE + TSS_REDIRECTION_SIZE + TSS_IOPB_SIZE + 1)
-
-#ifdef CONFIG_X86_64
-
-/*
- * When emulating 32-bit mode, cr3 is only 32 bits even on x86_64. Therefore
- * we need to allocate shadow page tables in the first 4GB of memory, which
- * happens to fit the DMA32 zone.
- */
-#define GFP_KVM_MMU (GFP_KERNEL | __GFP_DMA32)
-
-#else
-
-#define GFP_KVM_MMU GFP_KERNEL
-
-#endif
-
-#endif
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