Messages in this thread | | | Subject | Re: [PATCH RFC V2 17/17] x86/entry: Preserve PKRS MSR across exceptions | From | Dave Hansen <> | Date | Thu, 23 Jul 2020 09:23:13 -0700 |
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On 7/23/20 9:18 AM, Fenghua Yu wrote: > The PKRS MSR has been preserved in thread_info during kernel entry. We > don't need to preserve it in another place (i.e. idtentry_state).
I'm missing how the PKRS MSR gets preserved in thread_info. Could you explain the mechanism by which this happens and point to the code implementing it, please?
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