Re: [Xen-devel] [PATCH v8 2/2] x86/viridian: Add partition time reference counter MSR support

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.08.14 at 18:16, <paul.durrant@xxxxxxxxxx> wrote:
> This patch optionally re-instates support for the partition time reference
> counter that was previously introduced by commit
> e36cd2cdc9674a7a4855d21fb7b3e6e17c4bb33b and reverted by commit
> 1cd4fab14ce25859efa4a2af13475e6650a5506c. The previous implementation was
> non-optional and flawed.
> 
> This implementation uses the tsc of vcpu0, which is preserved across
> save/restore as part of the architectural state, and then converts that
> to a 100ns tick using the domain's tsc_khz.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

Hypervisor parts
Acked-by: Jan Beulich <jbeulich@xxxxxxxx>


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