Messages in this thread | | | Date | Thu, 12 Jan 2023 12:28:47 +0100 | From | Borislav Petkov <> | Subject | Re: [PATCH kernel v2 2/3] KVM: SEV: Enable data breakpoints in SEV-ES |
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On Thu, Jan 12, 2023 at 04:45:34PM +1100, Alexey Kardashevskiy wrote: > Well, SEV-ES KVM (ES == Encrypted State) does not save/restore them for the > guest (well, as I would expect) as the guest registers are not visible to > host to save, they are intercepted and the VM does this GHCB dance with > VMGEXIT(SVM_EXIT_WRITE_DR7).
But they're saved in the VMSA, as Table B-3 says.
> Well, the only place in APM is that "Table B-3. Swap Types and the AMD APM > volume 2", and it is pretty brief, do I miss something?
I don't understand that question - please elaborate.
Thx.
-- Regards/Gruss, Boris.
https://people.kernel.org/tglx/notes-about-netiquette
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