Re: [PATCH v5 08/34] KVM: SVM: Prevent debugging under SEV-ES
From: Tom Lendacky
Date: Mon Dec 14 2020 - 14:12:40 EST
On 12/14/20 9:41 AM, Paolo Bonzini wrote:
> On 10/12/20 18:09, Tom Lendacky wrote:
>> Additionally, an SEV-ES guest must only and always intercept DR7 reads and
>> writes. Update set_dr_intercepts() and clr_dr_intercepts() to account for
>> this.
>
> I cannot see it, where is this documented?
That is documented in the GHCB specification, section 4.5 Debug Register
Support:
https://developer.amd.com/wp-content/resources/56421.pdf
Thanks,
Tom
>
> Paolo
>