Re: [PATCHv2 0/7] Implement support for unaccepted memory
From: Brijesh Singh
Date: Tue Jan 18 2022 - 16:05:50 EST
Hi Kirill,
...
The approach lowers boot time substantially. Boot to shell is ~2.5x
faster for 4G TDX VM and ~4x faster for 64G.
Patches 1-6/7 are generic and don't have any dependencies on TDX. They
should serve AMD SEV needs as well. TDX-specific code isolated in the
last patch. This patch requires the core TDX patchset which is currently
under review.
I can confirm that this series works for the SEV-SNP guest. I was able
to hook the SEV-SNP page validation vmgexit (similar to the TDX patch#7)
and have verified that the guest kernel successfully accepted all the
memory regions marked unaccepted by the EFI boot loader.
Not a big deal, but can I ask you to include me in Cc on the future
series; I should be able to do more testing on SNP hardware and provide
my Test-by tag.
~ Brijesh