Re: [PATCH v1 2/4] KVM/vmx: auto switch MSR_IA32_DEBUGCTLMSR

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On 25/09/2017 06:44, Wei Wang wrote:
> Passthrough the MSR_IA32_DEBUGCTLMSR to the guest, and take advantage of
> the hardware VT-x feature to auto switch the msr upon VMExit and VMEntry.

I think most bits in the MSR should not be passed through (for example
FREEZE_WHILE_SMM_EN, FREEZE_LBRS_ON_PMI etc.).  Using auto-switch of
course is fine instead.

Paolo
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