Re: [PATCH RESEND v12 00/17] KVM: x86/pmu: Add basic support to enable guest PEBS via DS

[Paolo Bonzini]

On 5/25/22 16:12, Maxim Levitsky wrote:
> FYI, this patch series also break 'msr' test in kvm-unit tests.
> (kvm/queue of today, and master of the kvm-unit-tests repo)
>
> The test tries to set the MSR_IA32_MISC_ENABLE to 0x400c51889 and gets #GP.
>
>
> Commenting this out, gets rid of #GP, but test still fails with unexpected result
>
> 		if (!msr_info->host_initiated &&
> 		    ((old_val ^ data) & MSR_IA32_MISC_ENABLE_PEBS_UNAVAIL))
> 			return 1;
>
>
>
>
> It is very possible that the test is broken, I'll check this later.

Yes, for that I've sent a patch already:

https://lore.kernel.org/kvm/20220520183207.7952-1-pbonzini@xxxxxxxxxx/

Paolo