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Re: [Xen-devel] [PATCH 0/2] x86/vMCE: save/restore MCA capabilities

On 15/02/2012 10:59, "Jan Beulich" <JBeulich@xxxxxxxx> wrote:

> When migrating to a host with less MCA banks than the source host
> had, accesses to the extra banks' MCi_* MSRs caused #GP-s so far.
> By making the bank count (and other MCA capabilities) available to
> the destination host, it can properly ignore writes to extra banks the
> guest may know of, and return appropriate default values for reads.
> The two patches can be applied independently (the second patch
> may need some refinement), but proper save/restore functionality
> can only be expected with both applied.
> 1: don't advertise features we don't support
> 2: save/restore MCA capabilities
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> Tested-by: Olaf Hering <olaf@xxxxxxxxx>

Acked-by: Keir Fraser <keir@xxxxxxx>

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