From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Min Xu <min.m.xu@intel.com>
Cc: devel@edk2.groups.io, Ard Biesheuvel <ardb+tianocore@kernel.org>,
Jordan Justen <jordan.l.justen@intel.com>,
Brijesh Singh <brijesh.singh@amd.com>,
Erdem Aktas <erdemaktas@google.com>,
James Bottomley <jejb@linux.ibm.com>,
Jiewen Yao <jiewen.yao@intel.com>,
Tom Lendacky <thomas.lendacky@amd.com>
Subject: Re: [PATCH V5 1/2] OvmfPkg: Introduce Tdx BFV/CFV PCDs and PcdOvmfImageSizeInKb
Date: Mon, 30 Aug 2021 09:03:39 +0200 [thread overview]
Message-ID: <20210830070339.u47qq3g7hb4rq3xc@sirius.home.kraxel.org> (raw)
In-Reply-To: <77440edd1e175207dffcaaa052ce26ae71e6c66c.1630289827.git.min.m.xu@intel.com>
Hi,
> In practice BFV is the code part of Ovmf image. CFV is the vars part of
> Ovmf image (exclude the SPARE part).
Why do you exclude the spare part?
>From a security point of view I don't think it is a good idea to hard
code any assumptions about the layout of the vars volume.
> +SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvBase = $(FW_BASE_ADDRESS)
> +SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataOffset = $(VARS_OFFSET)
> +SET gUefiOvmfPkgTokenSpaceGuid.PcdCfvRawDataSize = $(VARS_LIVE_SIZE)
I'd suggest to use $(VARS_SIZE) here.
take care,
Gerd
next prev parent reply other threads:[~2021-08-30 7:03 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-30 2:35 [PATCH V5 0/2] Add Intel TDX support in OvmfPkg/ResetVector Min Xu
2021-08-30 2:35 ` [PATCH V5 1/2] OvmfPkg: Introduce Tdx BFV/CFV PCDs and PcdOvmfImageSizeInKb Min Xu
2021-08-30 7:03 ` Gerd Hoffmann [this message]
2021-08-31 3:29 ` [edk2-devel] " Min Xu
2021-08-31 5:13 ` Gerd Hoffmann
2021-08-31 6:17 ` Min Xu
2021-08-31 10:21 ` Gerd Hoffmann
2021-09-01 5:18 ` Min Xu
2021-09-01 6:10 ` Gerd Hoffmann
2021-09-01 6:57 ` Ard Biesheuvel
2021-09-01 7:19 ` Min Xu
2021-09-01 7:44 ` Gerd Hoffmann
2021-09-01 8:59 ` Yao, Jiewen
2021-09-01 16:53 ` James Bottomley
2021-09-01 19:19 ` Andrew Fish
2021-09-10 17:03 ` Erdem Aktas
2021-08-30 2:35 ` [PATCH V5 2/2] OvmfPkg/ResetVector: Enable Intel TDX in ResetVector of Ovmf Min Xu
2021-08-30 7:40 ` Gerd Hoffmann
2021-08-31 3:09 ` [edk2-devel] " Min Xu
2021-08-31 5:35 ` Gerd Hoffmann
2021-09-02 0:05 ` Min Xu
2021-09-02 7:18 ` Gerd Hoffmann
2021-09-02 7:49 ` Min Xu
2021-09-03 3:03 ` Yao, Jiewen
2021-09-03 5:39 ` Gerd Hoffmann
2021-09-09 13:54 ` Min Xu
2021-09-10 8:19 ` Gerd Hoffmann
2021-09-14 3:54 ` Yao, Jiewen
2021-09-11 1:17 ` Erdem Aktas
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