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Tue, 20 Jul 2021 08:04:49 +0000 X-Received: from b03ledav002.gho.boulder.ibm.com (b03ledav002.gho.boulder.ibm.com [9.17.130.233]) by b03cxnp08027.gho.boulder.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 16K84lil14877052 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 20 Jul 2021 08:04:47 GMT X-Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id DC32713605E; Tue, 20 Jul 2021 08:04:46 +0000 (GMT) X-Received: from b03ledav002.gho.boulder.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AF9D9136055; Tue, 20 Jul 2021 08:04:45 +0000 (GMT) X-Received: from localhost.localdomain (unknown [9.2.130.16]) by b03ledav002.gho.boulder.ibm.com (Postfix) with ESMTP; Tue, 20 Jul 2021 08:04:45 +0000 (GMT) From: "Dov Murik" To: devel@edk2.groups.io Cc: Dov Murik , Tobin Feldman-Fitzthum , Tobin Feldman-Fitzthum , Jim Cadden , James Bottomley , Hubertus Franke , Ard Biesheuvel , Jordan Justen , Ashish Kalra , Brijesh Singh , Erdem Aktas , Jiewen Yao , Min Xu , Tom Lendacky Subject: [edk2-devel] [PATCH v3 11/11] OvmfPkg/AmdSev: Enforce hash verification of kernel blobs Date: Tue, 20 Jul 2021 08:04:01 +0000 Message-Id: <20210720080401.3662854-12-dovmurik@linux.ibm.com> In-Reply-To: <20210720080401.3662854-1-dovmurik@linux.ibm.com> References: <20210720080401.3662854-1-dovmurik@linux.ibm.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 6jrCvvxDemTRKV4g_GdgF3VMFwYQTciy X-Proofpoint-GUID: T2nEFadCyDBSEtU1YC9-TjP0zJur_CCQ X-Proofpoint-UnRewURL: 1 URL was un-rewritten MIME-Version: 1.0 Precedence: Bulk List-Unsubscribe: List-Subscribe: List-Help: Sender: devel@edk2.groups.io List-Id: Mailing-List: list devel@edk2.groups.io; contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,dovmurik@linux.ibm.com X-Gm-Message-State: Sa4LFhLBCg3AXPla6TBQbRKvx1787277AA= Content-Transfer-Encoding: quoted-printable DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=groups.io; q=dns/txt; s=20140610; t=1626768293; bh=0F9JyrW5J8Df8EdR5MAlAqzWx9gYSZTDS2Zr+/ndD9Y=; h=Cc:Date:From:Reply-To:Subject:To; b=lUe7+MRqvxiqE5sZ5gSZcGL44JnHRdMyammbxcybt075KBDhNkO6ye0P4xgOLTGdfYT o6PfIivtAcRvXz3dkHSelYIzr31sANHfEYJ+Z9oL60kO6C84xXLv18HkrPipmThNmAvOK 1z/eDeldAKS9829u+yHCgvUDgP2sWO+0MY0= X-ZohoMail-DKIM: pass (identity @groups.io) X-ZM-MESSAGEID: 1626768295626100001 Content-Type: text/plain; charset="utf-8" In the AmdSevX64 build, use BlobVerifierLibSevHashes to enforce verification of hashes of the kernel/initrd/cmdline blobs fetched from firmware config. This allows for secure (measured) boot of SEV guests with QEMU's -kernel/-initrd/-append switches (with the corresponding QEMU support for injecting the hashes table into initial measured guest memory). Cc: Ard Biesheuvel Cc: Jordan Justen Cc: Ashish Kalra Cc: Brijesh Singh Cc: Erdem Aktas Cc: James Bottomley Cc: Jiewen Yao Cc: Min Xu Cc: Tom Lendacky Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=3D3457 Signed-off-by: Dov Murik Reviewed-by: Tom Lendacky --- OvmfPkg/AmdSev/AmdSevX64.dsc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/OvmfPkg/AmdSev/AmdSevX64.dsc b/OvmfPkg/AmdSev/AmdSevX64.dsc index b2cc96cc5a97..c01599ea354f 100644 --- a/OvmfPkg/AmdSev/AmdSevX64.dsc +++ b/OvmfPkg/AmdSev/AmdSevX64.dsc @@ -173,7 +173,7 @@ [LibraryClasses] LockBoxLib|OvmfPkg/Library/LockBoxLib/LockBoxBaseLib.inf CustomizedDisplayLib|MdeModulePkg/Library/CustomizedDisplayLib/Customize= dDisplayLib.inf FrameBufferBltLib|MdeModulePkg/Library/FrameBufferBltLib/FrameBufferBltL= ib.inf - BlobVerifierLib|OvmfPkg/Library/BlobVerifierLib/BlobVerifierLibNull.inf + BlobVerifierLib|OvmfPkg/Library/BlobVerifierLib/BlobVerifierLibSevHashes= .inf =20 !if $(SOURCE_DEBUG_ENABLE) =3D=3D TRUE PeCoffExtraActionLib|SourceLevelDebugPkg/Library/PeCoffExtraActionLibDeb= ug/PeCoffExtraActionLibDebug.inf @@ -696,7 +696,7 @@ [Components] } OvmfPkg/QemuKernelLoaderFsDxe/QemuKernelLoaderFsDxe.inf { - NULL|OvmfPkg/Library/BlobVerifierLib/BlobVerifierLibNull.inf + NULL|OvmfPkg/Library/BlobVerifierLib/BlobVerifierLibSevHashes.inf } OvmfPkg/VirtioPciDeviceDxe/VirtioPciDeviceDxe.inf OvmfPkg/Virtio10Dxe/Virtio10.inf --=20 2.25.1 -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. 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