Move the old implementation of DEBUGCTLMSR from x86.c to vmx.c
Signed-off-by: Jian Zhou <jianjay.zhou@xxxxxxxxxx>
Signed-off-by: Stephen He <herongguang.he@xxxxxxxxxx>
---
arch/x86/kvm/x86.c | 24 +++++++++---------------
1 file changed, 9 insertions(+), 15 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9a9a198..9133c48 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -185,6 +185,13 @@ static inline void kvm_async_pf_hash_reset(struct kvm_vcpu *vcpu)
vcpu->arch.apf.gfns[i] = ~0;
}
+void kvm_lbr_init(struct kvm_vcpu *vcpu)
+{
+ vcpu->arch.lbr_status = 0;
+ vcpu->arch.lbr_used = 0;
+ vcpu->arch.lbr_msr.nr = 0;
+}
+
static void kvm_on_user_return(struct user_return_notifier *urn)
{
unsigned slot;
@@ -1947,18 +1954,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
return 1;
}
break;
- case MSR_IA32_DEBUGCTLMSR:
- if (!data) {
- /* We support the non-activated case already */
- break;
- } else if (data & ~(DEBUGCTLMSR_LBR | DEBUGCTLMSR_BTF)) {
- /* Values other than LBR and BTF are vendor-specific,
- thus reserved and should throw a #GP */
- return 1;
- }
- vcpu_unimpl(vcpu, "%s: MSR_IA32_DEBUGCTLMSR 0x%llx, nop\n",
- __func__, data);
- break;
case 0x200 ... 0x2ff:
return kvm_mtrr_set_msr(vcpu, msr, data);
case MSR_IA32_APICBASE:
@@ -2180,11 +2175,8 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
switch (msr_info->index) {
case MSR_IA32_PLATFORM_ID:
case MSR_IA32_EBL_CR_POWERON:
- case MSR_IA32_DEBUGCTLMSR:
case MSR_IA32_LASTBRANCHFROMIP:
case MSR_IA32_LASTBRANCHTOIP:
- case MSR_IA32_LASTINTFROMIP:
- case MSR_IA32_LASTINTTOIP:
case MSR_K8_SYSCFG:
case MSR_K8_TSEG_ADDR:
case MSR_K8_TSEG_MASK:
@@ -7376,6 +7368,8 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
kvm_async_pf_hash_reset(vcpu);
kvm_pmu_init(vcpu);
+ kvm_lbr_init(vcpu);
+
return 0;
fail_free_mce_banks:
--
1.7.12.4
--
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