#define KVM_NUM_MMU_PAGES (1 << KVM_MMU_HASH_SHIFT)
#define KVM_MIN_FREE_MMU_PAGES 5
#define KVM_REFILL_PAGES 25
-#define KVM_MAX_CPUID_ENTRIES 40
+#define KVM_MAX_CPUID_ENTRIES 80
#define KVM_NR_FIXED_MTRR_REGION 88
#define KVM_NR_VAR_MTRR 8
+#define ASYNC_PF_PER_VCPU 64
+
extern spinlock_t kvm_lock;
extern struct list_head vm_list;
struct kvm_vcpu;
struct kvm;
+struct kvm_async_pf;
enum kvm_reg {
VCPU_REGS_RAX = 0,
void (*new_cr3)(struct kvm_vcpu *vcpu);
void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root);
unsigned long (*get_cr3)(struct kvm_vcpu *vcpu);
- int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err);
- void (*inject_page_fault)(struct kvm_vcpu *vcpu);
+ int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err,
+ bool prefault);
+ void (*inject_page_fault)(struct kvm_vcpu *vcpu,
+ struct x86_exception *fault);
void (*free)(struct kvm_vcpu *vcpu);
gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access,
- u32 *error);
+ struct x86_exception *exception);
gpa_t (*translate_gpa)(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access);
void (*prefetch_page)(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *page);
int (*sync_page)(struct kvm_vcpu *vcpu,
- struct kvm_mmu_page *sp, bool clear_unsync);
+ struct kvm_mmu_page *sp);
void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
hpa_t root_hpa;
int root_level;
*/
struct kvm_mmu *walk_mmu;
- /*
- * This struct is filled with the necessary information to propagate a
- * page fault into the guest
- */
- struct {
- u64 address;
- unsigned error_code;
- bool nested;
- } fault;
-
/* only needed in kvm_pv_mmu_op() path, but it's hot so
* put it here to avoid allocation */
struct kvm_pv_mmu_op_buffer mmu_op_buffer;
u64 hv_vapic;
cpumask_var_t wbinvd_dirty_mask;
+
+ struct {
+ bool halted;
+ gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
+ struct gfn_to_hva_cache data;
+ u64 msr_val;
+ u32 id;
+ bool send_user_only;
+ } apf;
};
struct kvm_arch {
void (*write_tsc_offset)(struct kvm_vcpu *vcpu, u64 offset);
+ void (*get_exit_info)(struct kvm_vcpu *vcpu, u64 *info1, u64 *info2);
const struct trace_print_flags *exit_reasons_str;
};
+struct kvm_arch_async_pf {
+ u32 token;
+ gfn_t gfn;
+ unsigned long cr3;
+ bool direct_map;
+};
+
extern struct kvm_x86_ops *kvm_x86_ops;
int kvm_mmu_module_init(void);
int kvm_mmu_create(struct kvm_vcpu *vcpu);
int kvm_mmu_setup(struct kvm_vcpu *vcpu);
void kvm_mmu_set_nonpresent_ptes(u64 trap_pte, u64 notrap_pte);
-void kvm_mmu_set_base_ptes(u64 base_pte);
void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
u64 dirty_mask, u64 nx_mask, u64 x_mask);
int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0);
int kvm_set_cr3(struct kvm_vcpu *vcpu, unsigned long cr3);
int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4);
-void kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
+int kvm_set_cr8(struct kvm_vcpu *vcpu, unsigned long cr8);
int kvm_set_dr(struct kvm_vcpu *vcpu, int dr, unsigned long val);
int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val);
unsigned long kvm_get_cr8(struct kvm_vcpu *vcpu);
void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
void kvm_requeue_exception(struct kvm_vcpu *vcpu, unsigned nr);
void kvm_requeue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
-void kvm_inject_page_fault(struct kvm_vcpu *vcpu);
+void kvm_inject_page_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
int kvm_read_guest_page_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
gfn_t gfn, void *data, int offset, int len,
u32 access);
-void kvm_propagate_fault(struct kvm_vcpu *vcpu);
+void kvm_propagate_fault(struct kvm_vcpu *vcpu, struct x86_exception *fault);
bool kvm_require_cpl(struct kvm_vcpu *vcpu, int required_cpl);
int kvm_pic_set_irq(void *opaque, int irq, int level);
int kvm_mmu_load(struct kvm_vcpu *vcpu);
void kvm_mmu_unload(struct kvm_vcpu *vcpu);
void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
-gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva, u32 *error);
-gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva, u32 *error);
-gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva, u32 *error);
-gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva, u32 *error);
+gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
+ struct x86_exception *exception);
+gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
+ struct x86_exception *exception);
+gpa_t kvm_mmu_gva_to_gpa_write(struct kvm_vcpu *vcpu, gva_t gva,
+ struct x86_exception *exception);
+gpa_t kvm_mmu_gva_to_gpa_system(struct kvm_vcpu *vcpu, gva_t gva,
+ struct x86_exception *exception);
int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
#define HF_VINTR_MASK (1 << 2)
#define HF_NMI_MASK (1 << 3)
#define HF_IRET_MASK (1 << 4)
+#define HF_GUEST_MASK (1 << 5) /* VCPU is in guest-mode */
/*
* Hardware virtualization extension instructions may fault if a
* reboot turns off virtualization while processes are running.
* Trap the fault and ignore the instruction if that happens.
*/
-asmlinkage void kvm_handle_fault_on_reboot(void);
+asmlinkage void kvm_spurious_fault(void);
+extern bool kvm_rebooting;
#define __kvm_handle_fault_on_reboot(insn) \
"666: " insn "\n\t" \
+ "668: \n\t" \
".pushsection .fixup, \"ax\" \n" \
"667: \n\t" \
+ "cmpb $0, kvm_rebooting \n\t" \
+ "jne 668b \n\t" \
__ASM_SIZE(push) " $666b \n\t" \
- "jmp kvm_handle_fault_on_reboot \n\t" \
+ "call kvm_spurious_fault \n\t" \
".popsection \n\t" \
".pushsection __ex_table, \"a\" \n\t" \
_ASM_PTR " 666b, 667b \n\t" \
bool kvm_is_linear_rip(struct kvm_vcpu *vcpu, unsigned long linear_rip);
+void kvm_arch_async_page_not_present(struct kvm_vcpu *vcpu,
+ struct kvm_async_pf *work);
+void kvm_arch_async_page_present(struct kvm_vcpu *vcpu,
+ struct kvm_async_pf *work);
+void kvm_arch_async_page_ready(struct kvm_vcpu *vcpu,
+ struct kvm_async_pf *work);
+bool kvm_arch_can_inject_async_page_present(struct kvm_vcpu *vcpu);
+extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
+
+void kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
+
#endif /* _ASM_X86_KVM_HOST_H */
projects / mirror_ubuntu-artful-kernel.git / blobdiff