diff options
Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
| -rw-r--r-- | arch/x86/include/asm/kvm_host.h | 70 |
1 files changed, 61 insertions, 9 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 09b2e3e2cf1b..55e51ff7e421 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -102,7 +102,15 @@ #define UNMAPPED_GVA (~(gpa_t)0) /* KVM Hugepage definitions for x86 */ -#define KVM_NR_PAGE_SIZES 3 +enum { + PT_PAGE_TABLE_LEVEL = 1, + PT_DIRECTORY_LEVEL = 2, + PT_PDPE_LEVEL = 3, + /* set max level to the biggest one */ + PT_MAX_HUGEPAGE_LEVEL = PT_PDPE_LEVEL, +}; +#define KVM_NR_PAGE_SIZES (PT_MAX_HUGEPAGE_LEVEL - \ + PT_PAGE_TABLE_LEVEL + 1) #define KVM_HPAGE_GFN_SHIFT(x) (((x) - 1) * 9) #define KVM_HPAGE_SHIFT(x) (PAGE_SHIFT + KVM_HPAGE_GFN_SHIFT(x)) #define KVM_HPAGE_SIZE(x) (1UL << KVM_HPAGE_SHIFT(x)) @@ -177,6 +185,7 @@ enum { #define DR6_BD (1 << 13) #define DR6_BS (1 << 14) +#define DR6_BT (1 << 15) #define DR6_RTM (1 << 16) #define DR6_FIXED_1 0xfffe0ff0 #define DR6_INIT 0xffff0ff0 @@ -247,7 +256,7 @@ struct kvm_mmu_memory_cache { * @nxe, @cr0_wp, @smep_andnot_wp and @smap_andnot_wp. */ union kvm_mmu_page_role { - unsigned word; + u32 word; struct { unsigned level:4; unsigned cr4_pae:1; @@ -273,6 +282,34 @@ union kvm_mmu_page_role { }; }; +union kvm_mmu_extended_role { +/* + * This structure complements kvm_mmu_page_role caching everything needed for + * MMU configuration. If nothing in both these structures changed, MMU + * re-configuration can be skipped. @valid bit is set on first usage so we don't + * treat all-zero structure as valid data. + */ + u32 word; + struct { + unsigned int valid:1; + unsigned int execonly:1; + unsigned int cr0_pg:1; + unsigned int cr4_pse:1; + unsigned int cr4_pke:1; + unsigned int cr4_smap:1; + unsigned int cr4_smep:1; + unsigned int cr4_la57:1; + }; +}; + +union kvm_mmu_role { + u64 as_u64; + struct { + union kvm_mmu_page_role base; + union kvm_mmu_extended_role ext; + }; +}; + struct kvm_rmap_head { unsigned long val; }; @@ -280,18 +317,18 @@ struct kvm_rmap_head { struct kvm_mmu_page { struct list_head link; struct hlist_node hash_link; + bool unsync; /* * The following two entries are used to key the shadow page in the * hash table. */ - gfn_t gfn; union kvm_mmu_page_role role; + gfn_t gfn; u64 *spt; /* hold the gfn of each spte inside spt */ gfn_t *gfns; - bool unsync; int root_count; /* Currently serving as active root */ unsigned int unsync_children; struct kvm_rmap_head parent_ptes; /* rmap pointers to parent sptes */ @@ -360,7 +397,7 @@ struct kvm_mmu { void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp, u64 *spte, const void *pte); hpa_t root_hpa; - union kvm_mmu_page_role base_role; + union kvm_mmu_role mmu_role; u8 root_level; u8 shadow_root_level; u8 ept_ad; @@ -490,7 +527,7 @@ struct kvm_vcpu_hv { struct kvm_hyperv_exit exit; struct kvm_vcpu_hv_stimer stimer[HV_SYNIC_STIMER_COUNT]; DECLARE_BITMAP(stimer_pending_bitmap, HV_SYNIC_STIMER_COUNT); - cpumask_t tlb_lush; + cpumask_t tlb_flush; }; struct kvm_vcpu_arch { @@ -534,7 +571,13 @@ struct kvm_vcpu_arch { * the paging mode of the l1 guest. This context is always used to * handle faults. */ - struct kvm_mmu mmu; + struct kvm_mmu *mmu; + + /* Non-nested MMU for L1 */ + struct kvm_mmu root_mmu; + + /* L1 MMU when running nested */ + struct kvm_mmu guest_mmu; /* * Paging state of an L2 guest (used for nested npt) @@ -585,6 +628,8 @@ struct kvm_vcpu_arch { bool has_error_code; u8 nr; u32 error_code; + unsigned long payload; + bool has_payload; u8 nested_apf; } exception; @@ -781,6 +826,9 @@ struct kvm_hv { u64 hv_reenlightenment_control; u64 hv_tsc_emulation_control; u64 hv_tsc_emulation_status; + + /* How many vCPUs have VP index != vCPU index */ + atomic_t num_mismatched_vp_indexes; }; enum kvm_irqchip_mode { @@ -871,6 +919,7 @@ struct kvm_arch { bool x2apic_broadcast_quirk_disabled; bool guest_can_read_msr_platform_info; + bool exception_payload_enabled; }; struct kvm_vm_stat { @@ -1133,6 +1182,9 @@ struct kvm_x86_ops { int (*mem_enc_unreg_region)(struct kvm *kvm, struct kvm_enc_region *argp); int (*get_msr_feature)(struct kvm_msr_entry *entry); + + int (*nested_enable_evmcs)(struct kvm_vcpu *vcpu, + uint16_t *vmcs_version); }; struct kvm_arch_async_pf { @@ -1170,7 +1222,6 @@ void kvm_mmu_module_exit(void); void kvm_mmu_destroy(struct kvm_vcpu *vcpu); int kvm_mmu_create(struct kvm_vcpu *vcpu); -void kvm_mmu_setup(struct kvm_vcpu *vcpu); void kvm_mmu_init_vm(struct kvm *kvm); void kvm_mmu_uninit_vm(struct kvm *kvm); void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask, @@ -1324,7 +1375,8 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu); 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); -void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, ulong roots_to_free); +void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, + ulong roots_to_free); gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access, struct x86_exception *exception); gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva, |