2016-03-03 13:32-0800, David Matlack:
> On Thu, Mar 3, 2016 at 10:53 AM, Radim Krčmář wrote:
>> diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
>> @@ -1767,6 +1767,13 @@ static void clear_atomic_switch_msr(struct vcpu_vmx
>> *vmx, unsigned msr)
>> return;
>>
On Thu, Mar 3, 2016 at 10:53 AM, Radim Krčmář wrote:
> Linux guests on Haswell (and also SandyBridge and Broadwell, at least)
> would crash if you decided to run a host command that uses PEBS, like
> perf record -e 'cpu/mem-stores/pp' -a
>
> This happens because KVM is using VMX MSR switching to
Linux guests on Haswell (and also SandyBridge and Broadwell, at least)
would crash if you decided to run a host command that uses PEBS, like
perf record -e 'cpu/mem-stores/pp' -a
This happens because KVM is using VMX MSR switching to disable PEBS, but
SDM [2015-12] 18.4.4.4 Re-configuring PEBS F
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