On Wed, Apr 07, 2021 at 12:34:59PM -0500, Brijesh Singh wrote:
> The feature is part of the GHCB version 2 and is enforced by the
> hypervisor. I guess it can be extended for the ES. Since this feature
> was not available in GHCB version 1 (base ES) so it should be presented
> as an optional for
On 4/7/21 12:34 PM, Brijesh Singh wrote:
>
> On 4/7/21 6:59 AM, Borislav Petkov wrote:
>> On Wed, Mar 24, 2021 at 11:44:18AM -0500, Brijesh Singh wrote:
>>> The SEV-SNP guest is required to perform GHCB GPA registration. This is
>> Why does it need to do that? Some additional security so as to
On 4/7/21 6:59 AM, Borislav Petkov wrote:
> On Wed, Mar 24, 2021 at 11:44:18AM -0500, Brijesh Singh wrote:
>> The SEV-SNP guest is required to perform GHCB GPA registration. This is
> Why does it need to do that? Some additional security so as to not allow
> changing the GHCB once it is
On Wed, Mar 24, 2021 at 11:44:18AM -0500, Brijesh Singh wrote:
> The SEV-SNP guest is required to perform GHCB GPA registration. This is
Why does it need to do that? Some additional security so as to not allow
changing the GHCB once it is established?
I'm guessing that's enforced by the SNP fw
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