Messages in this thread | | | Date | Fri, 29 Jul 2022 12:08:38 -0700 | Subject | Re: [PATCH v1 1/2] x86/sev: Use per-CPU PSC structure in prep for unaccepted memory support | From | Dave Hansen <> |
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On 7/29/22 07:25, Tom Lendacky wrote: >> Considering that runtime acceptance is already single-threaded[1] *and* >> there's a fallback method, why not just have a single copy of this >> guarded by a single lock? > > This function is called for more than just memory acceptance. It's also > called for any changes from or to private or shared, which isn't > single-threaded.
I think this tidbit from the changelog threw me off:
> Protect the use of the per-CPU structure by disabling interrupts during > memory acceptance.
Could you please revise that to accurately capture the impact of this change?
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