Re: [Xen-devel] [PATCH 15/19] x86/vmce: emulate MSR_IA32_MCG_EXT_CTL

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 23.02.17 at 05:26, <haozhong.zhang@xxxxxxxxx> wrote:
> On 02/22/17 08:36 -0700, Jan Beulich wrote:
>> >>> On 17.02.17 at 07:39, <haozhong.zhang@xxxxxxxxx> wrote:
>> All of this said - is this really a per-vCPU property, instead of a
>> per-domain one?
> 
> Per-vCPU. At least it can be set in the per-CPU way. Patch 16, which
> implements the vLMCE injection, checks this per-vcpu flag when
> injecting vMCE. If the flag is cleared, vMCE (w/ MCG_STATUS_LMCE
> removed) will be broadcast to all vcpus.

You answer my question based on the mechanics of your patches,
but the question was from a conceptual / architectural perspective.

Jan


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