From: "Daniel P. Berrangé" <berrange@redhat.com>
To: Dov Murik <dovmurik@linux.ibm.com>
Cc: "Tom Lendacky" <thomas.lendacky@amd.com>,
"Ashish Kalra" <ashish.kalra@amd.com>,
"Brijesh Singh" <brijesh.singh@amd.com>,
"Eduardo Habkost" <ehabkost@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Connor Kuehl" <ckuehl@redhat.com>,
"Laszlo Ersek" <lersek@redhat.com>,
"James Bottomley" <jejb@linux.ibm.com>,
"Richard Henderson" <richard.henderson@linaro.org>,
"Dr. David Alan Gilbert" <dgilbert@redhat.com>,
qemu-devel@nongnu.org, "Hubertus Franke" <frankeh@us.ibm.com>,
"Tobin Feldman-Fitzthum" <tobin@linux.ibm.com>,
"Jim Cadden" <jcadden@ibm.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: Re: [PATCH v4 1/2] sev/i386: Introduce sev_add_kernel_loader_hashes for measured linux boot
Date: Thu, 30 Sep 2021 09:32:26 +0100 [thread overview]
Message-ID: <YVV2GoXCv6BT4fgf@redhat.com> (raw)
In-Reply-To: <20210930054915.13252-2-dovmurik@linux.ibm.com>
On Thu, Sep 30, 2021 at 08:49:14AM +0300, Dov Murik wrote:
> Add the sev_add_kernel_loader_hashes function to calculate the hashes of
> the kernel/initrd/cmdline and fill a designated OVMF encrypted hash
> table area. For this to work, OVMF must support an encrypted area to
> place the data which is advertised via a special GUID in the OVMF reset
> table.
>
> The hashes of each of the files is calculated (or the string in the case
> of the cmdline with trailing '\0' included). Each entry in the hashes
> table is GUID identified and since they're passed through the
> sev_encrypt_flash interface, the hashes will be accumulated by the AMD
> PSP measurement (SEV_LAUNCH_MEASURE).
>
> Co-developed-by: James Bottomley <jejb@linux.ibm.com>
> Signed-off-by: James Bottomley <jejb@linux.ibm.com>
> Signed-off-by: Dov Murik <dovmurik@linux.ibm.com>
> ---
> target/i386/sev_i386.h | 12 ++++
> target/i386/sev-stub.c | 5 ++
> target/i386/sev.c | 137 +++++++++++++++++++++++++++++++++++++++++
> 3 files changed, 154 insertions(+)
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Regards,
Daniel
--
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next prev parent reply other threads:[~2021-09-30 8:33 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-30 5:49 [PATCH v4 0/2] x86/sev: Measured Linux SEV guest with kernel/initrd/cmdline Dov Murik
2021-09-30 5:49 ` [PATCH v4 1/2] sev/i386: Introduce sev_add_kernel_loader_hashes for measured linux boot Dov Murik
2021-09-30 8:32 ` Daniel P. Berrangé [this message]
2021-09-30 10:13 ` Dov Murik
2021-10-18 18:02 ` Tom Lendacky
2021-10-19 6:18 ` Dov Murik
2021-10-20 15:26 ` Tom Lendacky
2021-10-27 19:43 ` Brijesh Singh
2021-10-28 8:41 ` Dov Murik
2021-11-01 10:28 ` Dov Murik
2021-09-30 5:49 ` [PATCH v4 2/2] x86/sev: generate SEV kernel loader hashes in x86_load_linux Dov Murik
2021-10-04 8:03 ` [PATCH v4 0/2] x86/sev: Measured Linux SEV guest with kernel/initrd/cmdline Paolo Bonzini
2021-10-04 17:23 ` Dov Murik
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