Re: [Xen-devel] [PATCH v5 3/3] x86/viridian: Add partition time reference counter MSR support

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Paul Durrant writes ("[PATCH v5 3/3] x86/viridian: Add partition time reference 
counter MSR support"):
> 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.

The tools part of this is fine except that it does the string to
number conversion in libxl rather than xl, as I have just observed wrt
1/3.

Thanks,
Ian.

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