Messages in this thread | | | Date | Tue, 26 Jan 2021 15:19:58 +0000 | From | Wei Liu <> | Subject | Re: [PATCH v5 05/16] clocksource/hyperv: use MSR-based access if running as root |
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On Wed, Jan 20, 2021 at 11:13:28AM -0500, Pavel Tatashin wrote: > On Wed, Jan 20, 2021 at 7:01 AM Wei Liu <wei.liu@kernel.org> wrote: > > > > When Linux runs as the root partition, the setup required for TSC page > > is different. > > Why would we need a TSC page as a clock source for root partition at > all? I think the above can be removed. >
The TSC page is considered superior to MSR-based clock. In the future we may want to switch back to that TSC page instead.
I think it provides more context than without.
Wei.
> Luckily Linux also has access to the MSR based > > clocksource. We can just disable the TSC page clocksource if Linux is > > the root partition. > >
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