summaryrefslogtreecommitdiffstats
path: root/drivers/kvm/kvm.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/kvm/kvm.h')
-rw-r--r--drivers/kvm/kvm.h211
1 files changed, 110 insertions, 101 deletions
diff --git a/drivers/kvm/kvm.h b/drivers/kvm/kvm.h
index 336be86c6f5a..3b0bc4bda5f2 100644
--- a/drivers/kvm/kvm.h
+++ b/drivers/kvm/kvm.h
@@ -13,60 +13,38 @@
#include <linux/signal.h>
#include <linux/sched.h>
#include <linux/mm.h>
+#include <linux/preempt.h>
#include <asm/signal.h>
-#include "vmx.h"
#include <linux/kvm.h>
#include <linux/kvm_para.h>
-#define CR0_PE_MASK (1ULL << 0)
-#define CR0_MP_MASK (1ULL << 1)
-#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 CR3_PAE_RESERVED_BITS ((X86_CR3_PWT | X86_CR3_PCD) - 1)
+#define CR3_NONPAE_RESERVED_BITS ((PAGE_SIZE-1) & ~(X86_CR3_PWT | X86_CR3_PCD))
+#define CR3_L_MODE_RESERVED_BITS (CR3_NONPAE_RESERVED_BITS|0xFFFFFF0000000000ULL)
#define KVM_GUEST_CR0_MASK \
- (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK \
- | CR0_NW_MASK | CR0_CD_MASK)
+ (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE \
+ | X86_CR0_NW | X86_CR0_CD)
#define KVM_VM_CR0_ALWAYS_ON \
- (CR0_PG_MASK | CR0_PE_MASK | CR0_WP_MASK | CR0_NE_MASK | CR0_TS_MASK \
- | CR0_MP_MASK)
+ (X86_CR0_PG | X86_CR0_PE | X86_CR0_WP | X86_CR0_NE | X86_CR0_TS \
+ | X86_CR0_MP)
#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)
+ (X86_CR4_VME | X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE | X86_CR4_VMXE)
+#define KVM_PMODE_VM_CR4_ALWAYS_ON (X86_CR4_PAE | X86_CR4_VMXE)
+#define KVM_RMODE_VM_CR4_ALWAYS_ON (X86_CR4_VME | X86_CR4_PAE | X86_CR4_VMXE)
#define INVALID_PAGE (~(hpa_t)0)
#define UNMAPPED_GVA (~(gpa_t)0)
#define KVM_MAX_VCPUS 4
#define KVM_ALIAS_SLOTS 4
-#define KVM_MEMORY_SLOTS 4
+#define KVM_MEMORY_SLOTS 8
#define KVM_NUM_MMU_PAGES 1024
#define KVM_MIN_FREE_MMU_PAGES 5
#define KVM_REFILL_PAGES 25
#define KVM_MAX_CPUID_ENTRIES 40
-#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 NM_VECTOR 7
#define DF_VECTOR 8
@@ -158,15 +136,8 @@ struct kvm_mmu_page {
};
};
-struct vmcs {
- u32 revision_id;
- u32 abort;
- char data[0];
-};
-
-#define vmx_msr_entry kvm_msr_entry
-
struct kvm_vcpu;
+extern struct kmem_cache *kvm_vcpu_cache;
/*
* x86 supports 3 paging modes (4-level 64-bit, 3-level 64-bit, and 2-level
@@ -260,6 +231,7 @@ struct kvm_stat {
u32 signal_exits;
u32 irq_window_exits;
u32 halt_exits;
+ u32 halt_wakeup;
u32 request_irq_exits;
u32 irq_exits;
u32 light_exits;
@@ -328,21 +300,17 @@ void kvm_io_bus_register_dev(struct kvm_io_bus *bus,
struct kvm_vcpu {
struct kvm *kvm;
- union {
- struct vmcs *vmcs;
- struct vcpu_svm *svm;
- };
+ struct preempt_notifier preempt_notifier;
+ int vcpu_id;
struct mutex mutex;
int cpu;
- int launched;
u64 host_tsc;
struct kvm_run *run;
int interrupt_window_open;
int guest_mode;
unsigned long requests;
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];
+ DECLARE_BITMAP(irq_pending, KVM_NR_INTERRUPTS);
unsigned long regs[NR_VCPU_REGS]; /* for rsp: vcpu_load_rsp_rip() */
unsigned long rip; /* needs vcpu_load_rsp_rip() */
@@ -357,15 +325,15 @@ struct kvm_vcpu {
u64 pdptrs[4]; /* pae */
u64 shadow_efer;
u64 apic_base;
+ struct kvm_lapic *apic; /* kernel irqchip context */
+#define VCPU_MP_STATE_RUNNABLE 0
+#define VCPU_MP_STATE_UNINITIALIZED 1
+#define VCPU_MP_STATE_INIT_RECEIVED 2
+#define VCPU_MP_STATE_SIPI_RECEIVED 3
+#define VCPU_MP_STATE_HALTED 4
+ int mp_state;
+ int sipi_vector;
u64 ia32_misc_enable_msr;
- int nmsrs;
- int save_nmsrs;
- int msr_offset_efer;
-#ifdef CONFIG_X86_64
- int msr_offset_kernel_gs_base;
-#endif
- struct vmx_msr_entry *guest_msrs;
- struct vmx_msr_entry *host_msrs;
struct kvm_mmu mmu;
@@ -379,16 +347,10 @@ struct kvm_vcpu {
struct kvm_guest_debug guest_debug;
- char fx_buf[FX_BUF_SIZE];
- char *host_fx_image;
- char *guest_fx_image;
+ struct i387_fxsave_struct host_fx_image;
+ struct i387_fxsave_struct guest_fx_image;
int fpu_active;
int guest_fpu_loaded;
- struct vmx_host_state {
- int loaded;
- u16 fs_sel, gs_sel, ldt_sel;
- int fs_gs_ldt_reload_needed;
- } vmx_host_state;
int mmio_needed;
int mmio_read_completed;
@@ -399,6 +361,7 @@ struct kvm_vcpu {
gva_t mmio_fault_cr2;
struct kvm_pio_request pio;
void *pio_data;
+ wait_queue_head_t wq;
int sigset_active;
sigset_t sigset;
@@ -436,7 +399,7 @@ struct kvm_memory_slot {
};
struct kvm {
- spinlock_t lock; /* protects everything except vcpus */
+ struct mutex lock; /* protects everything except vcpus */
int naliases;
struct kvm_mem_alias aliases[KVM_ALIAS_SLOTS];
int nmemslots;
@@ -447,39 +410,59 @@ struct kvm {
struct list_head active_mmu_pages;
int n_free_mmu_pages;
struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
- int nvcpus;
- struct kvm_vcpu vcpus[KVM_MAX_VCPUS];
- int memory_config_version;
- int busy;
+ struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
unsigned long rmap_overflow;
struct list_head vm_list;
struct file *filp;
struct kvm_io_bus mmio_bus;
struct kvm_io_bus pio_bus;
+ struct kvm_pic *vpic;
+ struct kvm_ioapic *vioapic;
+ int round_robin_prev_vcpu;
};
+static inline struct kvm_pic *pic_irqchip(struct kvm *kvm)
+{
+ return kvm->vpic;
+}
+
+static inline struct kvm_ioapic *ioapic_irqchip(struct kvm *kvm)
+{
+ return kvm->vioapic;
+}
+
+static inline int irqchip_in_kernel(struct kvm *kvm)
+{
+ return pic_irqchip(kvm) != 0;
+}
+
struct descriptor_table {
u16 limit;
unsigned long base;
} __attribute__((packed));
-struct kvm_arch_ops {
+struct kvm_x86_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);
+ void (*check_processor_compatibility)(void *rtn);
int (*hardware_setup)(void); /* __init */
void (*hardware_unsetup)(void); /* __exit */
- int (*vcpu_create)(struct kvm_vcpu *vcpu);
+ /* Create, but do not attach this VCPU */
+ struct kvm_vcpu *(*vcpu_create)(struct kvm *kvm, unsigned id);
void (*vcpu_free)(struct kvm_vcpu *vcpu);
+ void (*vcpu_reset)(struct kvm_vcpu *vcpu);
- void (*vcpu_load)(struct kvm_vcpu *vcpu);
+ void (*prepare_guest_switch)(struct kvm_vcpu *vcpu);
+ void (*vcpu_load)(struct kvm_vcpu *vcpu, int cpu);
void (*vcpu_put)(struct kvm_vcpu *vcpu);
void (*vcpu_decache)(struct kvm_vcpu *vcpu);
int (*set_guest_debug)(struct kvm_vcpu *vcpu,
struct kvm_debug_guest *dbg);
+ void (*guest_debug_pre)(struct kvm_vcpu *vcpu);
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);
@@ -505,27 +488,43 @@ struct kvm_arch_ops {
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 (*run)(struct kvm_vcpu *vcpu, struct kvm_run *run);
+ int (*handle_exit)(struct kvm_run *run, struct kvm_vcpu *vcpu);
void (*skip_emulated_instruction)(struct kvm_vcpu *vcpu);
void (*patch_hypercall)(struct kvm_vcpu *vcpu,
unsigned char *hypercall_addr);
+ int (*get_irq)(struct kvm_vcpu *vcpu);
+ void (*set_irq)(struct kvm_vcpu *vcpu, int vec);
+ void (*inject_pending_irq)(struct kvm_vcpu *vcpu);
+ void (*inject_pending_vectors)(struct kvm_vcpu *vcpu,
+ struct kvm_run *run);
};
-extern struct kvm_arch_ops *kvm_arch_ops;
+extern struct kvm_x86_ops *kvm_x86_ops;
+
+/* The guest did something we don't support. */
+#define pr_unimpl(vcpu, fmt, ...) \
+ do { \
+ if (printk_ratelimit()) \
+ printk(KERN_ERR "kvm: %i: cpu%i " fmt, \
+ current->tgid, (vcpu)->vcpu_id , ## __VA_ARGS__); \
+ } while(0)
#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);
+int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
+void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
+
+int kvm_init_x86(struct kvm_x86_ops *ops, unsigned int vcpu_size,
+ struct module *module);
+void kvm_exit_x86(void);
int kvm_mmu_module_init(void);
void kvm_mmu_module_exit(void);
@@ -545,8 +544,6 @@ 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);
struct page *gva_to_page(struct kvm_vcpu *vcpu, gva_t gva);
-void kvm_emulator_want_group7_invlpg(void);
-
extern hpa_t bad_page_address;
struct page *gfn_to_page(struct kvm *kvm, gfn_t gfn);
@@ -561,6 +558,7 @@ enum emulation_result {
int emulate_instruction(struct kvm_vcpu *vcpu, struct kvm_run *run,
unsigned long cr2, u16 error_code);
+void kvm_report_emulation_failure(struct kvm_vcpu *cvpu, const char *context);
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,
@@ -574,9 +572,11 @@ int kvm_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data);
struct x86_emulate_ctxt;
-int kvm_setup_pio(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
- int size, unsigned long count, int string, int down,
- gva_t address, int rep, unsigned port);
+int kvm_emulate_pio (struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+ int size, unsigned port);
+int kvm_emulate_pio_string(struct kvm_vcpu *vcpu, struct kvm_run *run, int in,
+ int size, unsigned long count, int down,
+ gva_t address, int rep, unsigned port);
void kvm_emulate_cpuid(struct kvm_vcpu *vcpu);
int kvm_emulate_halt(struct kvm_vcpu *vcpu);
int emulate_invlpg(struct kvm_vcpu *vcpu, gva_t address);
@@ -590,34 +590,33 @@ 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);
+unsigned long get_cr8(struct kvm_vcpu *vcpu);
void lmsw(struct kvm_vcpu *vcpu, unsigned long msw);
+void kvm_get_cs_db_l_bits(struct kvm_vcpu *vcpu, int *db, int *l);
int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata);
int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
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);
void kvm_load_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_put_guest_fpu(struct kvm_vcpu *vcpu);
void kvm_flush_remote_tlbs(struct kvm *kvm);
-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);
+int emulator_read_std(unsigned long addr,
+ void *val,
+ unsigned int bytes,
+ struct kvm_vcpu *vcpu);
+int emulator_write_emulated(unsigned long addr,
+ const void *val,
+ unsigned int bytes,
+ struct kvm_vcpu *vcpu);
unsigned long segment_base(u16 selector);
void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
- const u8 *old, const u8 *new, int bytes);
+ const u8 *new, int bytes);
int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
int kvm_mmu_load(struct kvm_vcpu *vcpu);
@@ -625,6 +624,16 @@ void kvm_mmu_unload(struct kvm_vcpu *vcpu);
int kvm_hypercall(struct kvm_vcpu *vcpu, struct kvm_run *run);
+static inline void kvm_guest_enter(void)
+{
+ current->flags |= PF_VCPU;
+}
+
+static inline void kvm_guest_exit(void)
+{
+ current->flags &= ~PF_VCPU;
+}
+
static inline int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva,
u32 error_code)
{
@@ -656,17 +665,17 @@ static inline int is_long_mode(struct kvm_vcpu *vcpu)
static inline int is_pae(struct kvm_vcpu *vcpu)
{
- return vcpu->cr4 & CR4_PAE_MASK;
+ return vcpu->cr4 & X86_CR4_PAE;
}
static inline int is_pse(struct kvm_vcpu *vcpu)
{
- return vcpu->cr4 & CR4_PSE_MASK;
+ return vcpu->cr4 & X86_CR4_PSE;
}
static inline int is_paging(struct kvm_vcpu *vcpu)
{
- return vcpu->cr0 & CR0_PG_MASK;
+ return vcpu->cr0 & X86_CR0_PG;
}
static inline int memslot_id(struct kvm *kvm, struct kvm_memory_slot *slot)
@@ -746,12 +755,12 @@ static inline unsigned long read_msr(unsigned long msr)
}
#endif
-static inline void fx_save(void *image)
+static inline void fx_save(struct i387_fxsave_struct *image)
{
asm ("fxsave (%0)":: "r" (image));
}
-static inline void fx_restore(void *image)
+static inline void fx_restore(struct i387_fxsave_struct *image)
{
asm ("fxrstor (%0)":: "r" (image));
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-03 23:47:29 +0000