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Diffstat (limited to 'arch/x86/include/asm/kvm_host.h')
-rw-r--r--arch/x86/include/asm/kvm_host.h62
1 files changed, 58 insertions, 4 deletions
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index c13cd28d9d1b..00ddb0c9e612 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -17,6 +17,7 @@
#include <linux/tracepoint.h>
#include <linux/cpumask.h>
#include <linux/irq_work.h>
+#include <linux/irq.h>
#include <linux/kvm.h>
#include <linux/kvm_para.h>
@@ -54,6 +55,7 @@
#define KVM_REQ_TRIPLE_FAULT KVM_ARCH_REQ(2)
#define KVM_REQ_MMU_SYNC KVM_ARCH_REQ(3)
#define KVM_REQ_CLOCK_UPDATE KVM_ARCH_REQ(4)
+#define KVM_REQ_LOAD_CR3 KVM_ARCH_REQ(5)
#define KVM_REQ_EVENT KVM_ARCH_REQ(6)
#define KVM_REQ_APF_HALT KVM_ARCH_REQ(7)
#define KVM_REQ_STEAL_UPDATE KVM_ARCH_REQ(8)
@@ -75,13 +77,13 @@
#define KVM_REQ_HV_EXIT KVM_ARCH_REQ(21)
#define KVM_REQ_HV_STIMER KVM_ARCH_REQ(22)
#define KVM_REQ_LOAD_EOI_EXITMAP KVM_ARCH_REQ(23)
+#define KVM_REQ_GET_VMCS12_PAGES KVM_ARCH_REQ(24)
#define CR0_RESERVED_BITS \
(~(unsigned long)(X86_CR0_PE | X86_CR0_MP | X86_CR0_EM | X86_CR0_TS \
| X86_CR0_ET | X86_CR0_NE | X86_CR0_WP | X86_CR0_AM \
| X86_CR0_NW | X86_CR0_CD | X86_CR0_PG))
-#define CR3_PCID_INVD BIT_64(63)
#define CR4_RESERVED_BITS \
(~(unsigned long)(X86_CR4_VME | X86_CR4_PVI | X86_CR4_TSD | X86_CR4_DE\
| X86_CR4_PSE | X86_CR4_PAE | X86_CR4_MCE \
@@ -325,6 +327,16 @@ struct rsvd_bits_validate {
u64 bad_mt_xwr;
};
+struct kvm_mmu_root_info {
+ gpa_t cr3;
+ hpa_t hpa;
+};
+
+#define KVM_MMU_ROOT_INFO_INVALID \
+ ((struct kvm_mmu_root_info) { .cr3 = INVALID_PAGE, .hpa = INVALID_PAGE })
+
+#define KVM_MMU_NUM_PREV_ROOTS 3
+
/*
* x86 supports 4 paging modes (5-level 64-bit, 4-level 64-bit, 3-level 32-bit,
* and 2-level 32-bit). The kvm_mmu structure abstracts the details of the
@@ -344,7 +356,7 @@ struct kvm_mmu {
struct x86_exception *exception);
int (*sync_page)(struct kvm_vcpu *vcpu,
struct kvm_mmu_page *sp);
- void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva);
+ void (*invlpg)(struct kvm_vcpu *vcpu, gva_t gva, hpa_t root_hpa);
void (*update_pte)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
u64 *spte, const void *pte);
hpa_t root_hpa;
@@ -353,6 +365,7 @@ struct kvm_mmu {
u8 shadow_root_level;
u8 ept_ad;
bool direct_map;
+ struct kvm_mmu_root_info prev_roots[KVM_MMU_NUM_PREV_ROOTS];
/*
* Bitmap; bit set = permission fault
@@ -713,6 +726,9 @@ struct kvm_vcpu_arch {
/* be preempted when it's in kernel-mode(cpl=0) */
bool preempted_in_kernel;
+
+ /* Flush the L1 Data cache for L1TF mitigation on VMENTER */
+ bool l1tf_flush_l1d;
};
struct kvm_lpage_info {
@@ -881,6 +897,7 @@ struct kvm_vcpu_stat {
u64 signal_exits;
u64 irq_window_exits;
u64 nmi_window_exits;
+ u64 l1d_flush;
u64 halt_exits;
u64 halt_successful_poll;
u64 halt_attempted_poll;
@@ -973,6 +990,15 @@ struct kvm_x86_ops {
void (*set_rflags)(struct kvm_vcpu *vcpu, unsigned long rflags);
void (*tlb_flush)(struct kvm_vcpu *vcpu, bool invalidate_gpa);
+ int (*tlb_remote_flush)(struct kvm *kvm);
+
+ /*
+ * Flush any TLB entries associated with the given GVA.
+ * Does not need to flush GPA->HPA mappings.
+ * Can potentially get non-canonical addresses through INVLPGs, which
+ * the implementation may choose to ignore if appropriate.
+ */
+ void (*tlb_flush_gva)(struct kvm_vcpu *vcpu, gva_t addr);
void (*run)(struct kvm_vcpu *vcpu);
int (*handle_exit)(struct kvm_vcpu *vcpu);
@@ -1085,6 +1111,14 @@ struct kvm_x86_ops {
void (*setup_mce)(struct kvm_vcpu *vcpu);
+ int (*get_nested_state)(struct kvm_vcpu *vcpu,
+ struct kvm_nested_state __user *user_kvm_nested_state,
+ unsigned user_data_size);
+ int (*set_nested_state)(struct kvm_vcpu *vcpu,
+ struct kvm_nested_state __user *user_kvm_nested_state,
+ struct kvm_nested_state *kvm_state);
+ void (*get_vmcs12_pages)(struct kvm_vcpu *vcpu);
+
int (*smi_allowed)(struct kvm_vcpu *vcpu);
int (*pre_enter_smm)(struct kvm_vcpu *vcpu, char *smstate);
int (*pre_leave_smm)(struct kvm_vcpu *vcpu, u64 smbase);
@@ -1117,6 +1151,16 @@ static inline void kvm_arch_free_vm(struct kvm *kvm)
return kvm_x86_ops->vm_free(kvm);
}
+#define __KVM_HAVE_ARCH_FLUSH_REMOTE_TLB
+static inline int kvm_arch_flush_remote_tlb(struct kvm *kvm)
+{
+ if (kvm_x86_ops->tlb_remote_flush &&
+ !kvm_x86_ops->tlb_remote_flush(kvm))
+ return 0;
+ else
+ return -ENOTSUPP;
+}
+
int kvm_mmu_module_init(void);
void kvm_mmu_module_exit(void);
@@ -1268,6 +1312,10 @@ static inline int __kvm_irq_line_state(unsigned long *irq_state,
return !!(*irq_state);
}
+#define KVM_MMU_ROOT_CURRENT BIT(0)
+#define KVM_MMU_ROOT_PREVIOUS(i) BIT(1+i)
+#define KVM_MMU_ROOTS_ALL (~0UL)
+
int kvm_pic_set_irq(struct kvm_pic *pic, int irq, int irq_source_id, int level);
void kvm_pic_clear_all(struct kvm_pic *pic, int irq_source_id);
@@ -1279,7 +1327,7 @@ 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);
+void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, 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,
@@ -1298,7 +1346,8 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu);
int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t gva, u64 error_code,
void *insn, int insn_len);
void kvm_mmu_invlpg(struct kvm_vcpu *vcpu, gva_t gva);
-void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu);
+void kvm_mmu_invpcid_gva(struct kvm_vcpu *vcpu, gva_t gva, unsigned long pcid);
+void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3, bool skip_tlb_flush);
void kvm_enable_tdp(void);
void kvm_disable_tdp(void);
@@ -1413,6 +1462,11 @@ int kvm_cpu_get_interrupt(struct kvm_vcpu *v);
void kvm_vcpu_reset(struct kvm_vcpu *vcpu, bool init_event);
void kvm_vcpu_reload_apic_access_page(struct kvm_vcpu *vcpu);
+int kvm_pv_send_ipi(struct kvm *kvm, unsigned long ipi_bitmap_low,
+ unsigned long ipi_bitmap_high, int min,
+ unsigned long icr, int op_64_bit);
+
+u64 kvm_get_arch_capabilities(void);
void kvm_define_shared_msr(unsigned index, u32 msr);
int kvm_set_shared_msr(unsigned index, u64 val, u64 mask);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-04 11:05:17 +0300