Re: [PATCH 2/2] KVM: vmx/pmu: Clear DEBUGCTLMSR_LBR bit on the debug breakpoint event

2021-02-23 Thread Paolo Bonzini
On 23/02/21 17:38, Sean Christopherson wrote: On Tue, Feb 23, 2021, Like Xu wrote: When the processor that support model-specific LBR generates a debug breakpoint event, it automatically clears the LBR flag. This action does not clear previously stored LBR stack MSRs. (Intel SDM 17.4.2) Signed-

Re: [PATCH 2/2] KVM: vmx/pmu: Clear DEBUGCTLMSR_LBR bit on the debug breakpoint event

2021-02-23 Thread Sean Christopherson
On Tue, Feb 23, 2021, Like Xu wrote: > When the processor that support model-specific LBR generates a debug > breakpoint event, it automatically clears the LBR flag. This action > does not clear previously stored LBR stack MSRs. (Intel SDM 17.4.2) > > Signed-off-by: Like Xu > --- > arch/x86/kvm/

[PATCH 2/2] KVM: vmx/pmu: Clear DEBUGCTLMSR_LBR bit on the debug breakpoint event

2021-02-22 Thread Like Xu
When the processor that support model-specific LBR generates a debug breakpoint event, it automatically clears the LBR flag. This action does not clear previously stored LBR stack MSRs. (Intel SDM 17.4.2) Signed-off-by: Like Xu --- arch/x86/kvm/vmx/vmx.c | 5 + 1 file changed, 5 insertions(+