Re: [Xen-devel] [PATCH v2 2/2] x86/VPMU: Don't allow any non-zero writes to MSR_IA32_PEBS_ENABLE

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

> From: Boris Ostrovsky [mailto:boris.ostrovsky@xxxxxxxxxx]
> Sent: Thursday, December 24, 2015 12:52 AM
> 
> Calculation reserved bits for MSR_IA32_PEBS_ENABLE is model-dependent
> and since we don't support PEBS anyway we shouldn't allow any writes to
> it (but let's still permit guests wishing to disable PEBS).
> 
> We should also report PEBS as unsupported to HVM, just like we do on PV.
> 
> Signed-off-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>

Acked-by: Kevin Tian <kevin.tian@xxxxxxxxx>



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