Add arrays in kvm_vcpu_arch struct to save/restore
LBR MSRs at vm exit/entry time.
Add new hooks to set/get DEBUGCTLMSR and LBR MSRs.
Signed-off-by: Jian Zhou <jianjay.zhou@xxxxxxxxxx>
Signed-off-by: Stephen He <herongguang.he@xxxxxxxxxx>
---
arch/x86/include/asm/kvm_host.h | 26 ++++++++++++++++++++------
1 file changed, 20 insertions(+), 6 deletions(-)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 3a36ee7..dc2c120 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -376,6 +376,12 @@ 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 +522,15 @@ 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[MAX_NUM_LBR_MSRS];
+ struct msr_data host[MAX_NUM_LBR_MSRS];
+ }lbr_msr;
+
u64 mcg_cap;
u64 mcg_status;
u64 mcg_ctl;
@@ -728,12 +743,6 @@ 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;
@@ -887,6 +896,11 @@ struct kvm_x86_ops {
gfn_t offset, unsigned long mask);
/* pmu operations of sub-arch */
const struct kvm_pmu_ops *pmu_ops;
+
+ int (*set_debugctlmsr)(struct kvm_vcpu *vcpu, u64 value);
+ u64 (*get_debugctlmsr)(void);
+ void (*set_lbr_msr)(struct kvm_vcpu *vcpu, u32 msr, u64 data);
+ u64 (*get_lbr_msr)(struct kvm_vcpu *vcpu, u32 msr);
};
struct kvm_arch_async_pf {
--
1.7.12.4
--
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