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Groups > linux.kernel > #1612072
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [RFC PATCH v2 16/32] x86: kvm: Provide support to create Guest and HV shared per-CPU variables |
| Date | 2017-03-29 17:40 +0200 |
| Message-ID | <tqnRw-sm-41@gated-at.bofh.it> (permalink) |
| References | <tgD1v-5Gf-9@gated-at.bofh.it> <tlBs6-5QN-15@gated-at.bofh.it> <tq4cb-3fq-35@gated-at.bofh.it> <tqnHR-lp-23@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Mar 29, 2017 at 05:21:13PM +0200, Paolo Bonzini wrote:
> The GHCB would have to be allocated much earlier, possibly even by
> firmware depending on how things will be designed.
How about a statically allocated page like we do with the early
pagetable pages in head_64.S?
> I think it's premature to consider SEV-ES requirements.
My only concern is not to have to redo a lot when SEV-ES gets enabled.
So it would be prudent to design with SEV-ES in the back of our minds.
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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Re: [RFC PATCH v2 16/32] x86: kvm: Provide support to create Guest and HV shared per-CPU variables Borislav Petkov <bp@suse.de> - 2017-03-28 20:40 +0200
Re: [RFC PATCH v2 16/32] x86: kvm: Provide support to create Guest and HV shared per-CPU variables Paolo Bonzini <pbonzini@redhat.com> - 2017-03-29 17:30 +0200
Re: [RFC PATCH v2 16/32] x86: kvm: Provide support to create Guest and HV shared per-CPU variables Borislav Petkov <bp@suse.de> - 2017-03-29 17:40 +0200
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