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Re: [Xen-devel] [PATCH 0/4] x86: Drop PVRDTSCP and fix MSR_TSC_AUX handling for guests

>>> On 15.11.18 at 22:47, <andrew.cooper3@xxxxxxxxxx> wrote:
> Boris has confirmed that noone appears to be using PVRDTSCP any more, and in
> the decade since it was introduced, guest kernel / hardware support has
> provided a better alternative.

Doesn't removal of functionality require knowing that it was never used
at all, rather than just knowing that nothing uses it anymore? What if
some old guest somewhere relies on it?


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