Add arrays in kvm_vcpu_arch struct to save/restore
host/guest LBR MSRs at vm exit/entry time.
Signed-off-by: Jian Zhou <jianjay.z...@huawei.com>
Signed-off-by: Stephen He <herongguang...@huawei.com>
---
arch/x86/include/asm/kvm_host.h | 22 ++++++++++++++++------
1 file changed, 16 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 3a36ee7..ac0c745 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -91,6 +91,7 @@ static inline gfn_t gfn_to_index(gfn_t gfn, gfn_t base_gfn,
int level)
#define KVM_MAX_CPUID_ENTRIES 80
#define KVM_NR_FIXED_MTRR_REGION 88
#define KVM_NR_VAR_MTRR 8
+#define KVM_MAX_LBR_MSRS 128
#define ASYNC_PF_PER_VCPU 64
@@ -376,6 +377,12 @@ struct kvm_vcpu_hv {
u64 hv_vapic;
};
+struct msr_data {
+ bool host_initiated;
+ u32 index;
+ u64 data;
+};
+
struct kvm_vcpu_arch {
/*
* rip and regs accesses must go through
@@ -516,6 +523,15 @@ struct kvm_vcpu_arch {
unsigned long eff_db[KVM_NR_DB_REGS];
unsigned long guest_debug_dr7;
+ int lbr_status;
+ int lbr_used;
+
+ struct lbr_msr {
+ unsigned nr;
+ struct msr_data guest[KVM_MAX_LBR_MSRS];
+ struct msr_data host[KVM_MAX_LBR_MSRS];
+ } lbr_msr;
+
u64 mcg_cap;
u64 mcg_status;
u64 mcg_ctl;
@@ -728,12 +744,6 @@ struct kvm_vcpu_stat {
struct x86_instruction_info;
-struct msr_data {
- bool host_initiated;
- u32 index;
- u64 data;
-};
-
struct kvm_lapic_irq {
u32 vector;
u16 delivery_mode;
--
1.7.12.4
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