From: Tom Dohrmann <erbse.13@gmx.de>
To: Tom Lendacky <thomas.lendacky@amd.com>
Cc: "linux-coco@lists.linux.dev" <linux-coco@lists.linux.dev>,
"amd-sev-snp@lists.suse.com" <amd-sev-snp@lists.suse.com>
Subject: Re: SVSM draft specification v0.62 / GHCB draft specification v2.03
Date: Thu, 16 Mar 2023 21:31:11 +0100 [thread overview]
Message-ID: <ZBN8jz867HNLHVuj@notebook> (raw)
In-Reply-To: <a2f31400-9e1c-c12a-ad7f-ea0265a12068@amd.com>
On Tue, Mar 14, 2023 at 05:08:17PM -0500, Tom Lendacky wrote:
> Attached is an updated draft version of the SVSM specification with feedback
> incorporated from the previous review.
>
> Also attached is a draft GHCB specification with updates for APIC ID
> retrieval and VMPL/VMSA level execution (and an SEV-ES enhancement to use
> the SNP Page State Change support for working with UPM).
AFAICT the new GHCB spec explains how to run a vCPU at another VMPL,
but doesn't contain any information about how to registers a new VMSA
for a specific VMPL. From looking at some of the patches used for SVSM
it seems that a new field in the AP Creation NAE was added, but the
specification wasn't yet updated accordingly.
Regards,
Tom
> Please take a look and reply with any feedback you may have.
>
> Thanks,
> Tom
next prev parent reply other threads:[~2023-03-16 20:31 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-14 22:08 SVSM draft specification v0.62 / GHCB draft specification v2.03 Tom Lendacky
2023-03-16 20:31 ` Tom Dohrmann [this message]
2023-03-16 21:12 ` Tom Lendacky
2023-03-17 16:49 ` Tom Lendacky
2023-04-17 17:07 ` Tom Lendacky
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