Re: [PATCH 1/2] KVM: x86: Add emulation support for #GP triggered by VM instructions

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On Tue, Jan 12, 2021, Wei Huang wrote:
> From: Bandan Das <bsd@xxxxxxxxxx>
> 
> While running VM related instructions (VMRUN/VMSAVE/VMLOAD), some AMD
> CPUs check EAX against reserved memory regions (e.g. SMM memory on host)
> before checking VMCB's instruction intercept.

It would be very helpful to list exactly which CPUs are/aren't affected, even if
that just means stating something like "all CPUs before XYZ".  Given patch 2/2,
I assume it's all CPUs without the new CPUID flag?



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