Re: [PATCH v5 5/5] x86/kvm: Avoid dynamic allocation of pvclock data when SEV is active

[Borislav Petkov]

On Thu, Sep 06, 2018 at 11:45:03AM -0700, Sean Christopherson wrote:
> Yep, though because the 4k chunk in __decrypted is @hv_clock_boot 
> that's used for cpus 0-127, __decrypted_XXX would effectively be:
> 
>    (((num_possible_cpus() * 32) / 4k) - 1) pages

Ok, sounds like a nice compromise to me.

Also, I wonder if using subsections would be even better when adding
other things to the decrypted section. I.e.,

.data..decrypted:

...

.data..decrypted.aux:

...

.data..decrypted.something_else:

and this way keep it still conceptually together by keeping the section
namespace clean because we're putting it all under .decrypted's
namespace.

Hmmm.

-- 
Regards/Gruss,
    Boris.

SUSE Linux GmbH, GF: Felix ImendÃrffer, Jane Smithard, Graham Norton, HRB 21284 (AG NÃrnberg)
--