From: Dov Murik <dovmurik@linux.ibm.com>
To: Brijesh Singh <brijesh.singh@amd.com>,
qemu-devel@nongnu.org, Connor Kuehl <ckuehl@redhat.com>
Cc: "Tom Lendacky" <thomas.lendacky@amd.com>,
"Daniel P. Berrangé" <berrange@redhat.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
kvm@vger.kernel.org, "Michael S . Tsirkin" <mst@redhat.com>,
"Michael Roth" <michael.roth@amd.com>,
"James Bottomley" <jejb@linux.ibm.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"David Gibson" <david@gibson.dropbear.id.au>
Subject: Re: [RFC PATCH 2/6] i386/sev: extend sev-guest property to include SEV-SNP
Date: Mon, 12 Jul 2021 09:09:34 +0300 [thread overview]
Message-ID: <8b053bdf-42fb-d329-4cd8-f326ad98e10b@linux.ibm.com> (raw)
In-Reply-To: <20210709215550.32496-3-brijesh.singh@amd.com>
On 10/07/2021 0:55, Brijesh Singh wrote:
> To launch the SEV-SNP guest, a user can specify up to 8 parameters.
> Passing all parameters through command line can be difficult. To simplify
> the launch parameter passing, introduce a .ini-like config file that can be
> used for passing the parameters to the launch flow.
>
> The contents of the config file will look like this:
>
> $ cat snp-launch.init
>
> # SNP launch parameters
> [SEV-SNP]
> init_flags = 0
> policy = 0x1000
> id_block = "YWFhYWFhYWFhYWFhYWFhCg=="
>
>
> Add 'snp' property that can be used to indicate that SEV guest launch
> should enable the SNP support.
>
> SEV-SNP guest launch examples:
>
> 1) launch without additional parameters
>
> $(QEMU_CLI) \
> -object sev-guest,id=sev0,snp=on
>
> 2) launch with optional parameters
> $(QEMU_CLI) \
> -object sev-guest,id=sev0,snp=on,launch-config=<file>
>
Not directly SNP-related, but in an internal communication Connor told
me he wants to allow the SEV configuration (like dh-cert-file etc.) to
be set using QMP commands when the machine launches instead (or in
addition to) setting them via QEMU command-line parameters.
Whatever the configuration solution decided for the SEV parameters
should also apply to these new SNP settings (policy, id_block, etc.).
-Dov
next prev parent reply other threads:[~2021-07-12 6:10 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-09 21:55 [RFC PATCH 0/6] Add AMD Secure Nested Paging (SEV-SNP) support Brijesh Singh
2021-07-09 21:55 ` [RFC PATCH 1/6] linux-header: add the SNP specific command Brijesh Singh
2021-07-10 20:32 ` Michael S. Tsirkin
2021-07-12 15:48 ` Brijesh Singh
2021-07-19 11:35 ` Dov Murik
2021-07-19 14:40 ` Brijesh Singh
2021-07-09 21:55 ` [RFC PATCH 2/6] i386/sev: extend sev-guest property to include SEV-SNP Brijesh Singh
2021-07-12 6:09 ` Dov Murik [this message]
2021-07-12 14:34 ` Dr. David Alan Gilbert
2021-07-12 15:59 ` Brijesh Singh
2021-07-12 16:16 ` Dr. David Alan Gilbert
2021-07-12 14:43 ` Daniel P. Berrangé
2021-07-12 15:56 ` Brijesh Singh
2021-07-12 16:24 ` Daniel P. Berrangé
2021-07-13 13:54 ` Brijesh Singh
2021-07-13 13:46 ` Markus Armbruster
2021-07-14 14:18 ` Brijesh Singh
2021-07-20 19:42 ` Michael Roth
2021-07-20 21:54 ` Daniel P. Berrangé
2021-07-21 13:08 ` Markus Armbruster
2021-07-22 0:02 ` Michael Roth via
2021-07-13 18:21 ` Eric Blake
2021-07-09 21:55 ` [RFC PATCH 3/6] i386/sev: initialize SNP context Brijesh Singh
2021-07-15 9:32 ` Dov Murik
2021-07-15 13:24 ` Brijesh Singh
2021-07-09 21:55 ` [RFC PATCH 4/6] i386/sev: add the SNP launch start context Brijesh Singh
2021-07-19 12:34 ` Dov Murik
2021-07-19 15:27 ` Brijesh Singh
2021-07-09 21:55 ` [RFC PATCH 5/6] i386/sev: add support to encrypt BIOS when SEV-SNP is enabled Brijesh Singh
2021-07-14 17:08 ` Connor Kuehl
2021-07-14 18:52 ` Brijesh Singh
2021-07-15 5:54 ` Dov Murik
2021-07-19 13:00 ` Dov Murik
2021-07-09 21:55 ` [RFC PATCH 6/6] i386/sev: populate secrets and cpuid page and finalize the SNP launch Brijesh Singh
2021-07-14 17:29 ` Dr. David Alan Gilbert
2021-07-14 18:53 ` Brijesh Singh
2021-07-19 11:24 ` Dov Murik
2021-07-19 14:45 ` Brijesh Singh
2021-07-12 17:00 ` [RFC PATCH 0/6] Add AMD Secure Nested Paging (SEV-SNP) support Tom Lendacky
2021-07-13 8:05 ` Dov Murik
2021-07-13 8:31 ` Dr. David Alan Gilbert
2021-07-13 13:57 ` Brijesh Singh
2021-07-13 14:01 ` Brijesh Singh
2021-07-14 9:52 ` Dr. David Alan Gilbert
2021-07-14 14:23 ` Brijesh Singh
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