Re: [PATCH v1 1/2] x86/sev: Use per-CPU PSC structure in prep for unaccepted memory support

[Dave Hansen]

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?