From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, min.m.xu@intel.com
Cc: Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <gaoliming@byosoft.com.cn>,
Zhiguang Liu <zhiguang.liu@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: [edk2-devel] [PATCH 07/23] MdePkg: Update BaseIoLibIntrinsicSev to support Tdx
Date: Tue, 17 Aug 2021 10:38:22 +0200 [thread overview]
Message-ID: <20210817083822.vx2ts6twmm2fspqc@sirius.home.kraxel.org> (raw)
In-Reply-To: <8f56e6f50477bf00d5121e6515388fe68525b1e2.1628767741.git.min.m.xu@intel.com>
Hi,
> In the I/O functions of above files, if IsTdxGuest() returns TRUE, then
> Td I/O routine is called, otherwise the legacy I/O routine is called.
> Td I/O routines are declared in IoLibTdx.h and implemented in
> IoLibInternalTdx.c.
Sorry, I'm a bit late to the party, but what is the overall long plan
here?
IIRC some of the TDX features require a separate firmware binary. So,
if we need a separate binary anyway at some point in the future, isn't
it simpler then to use a separate firmware binary right from the start?
You can simply add a Tdx-specific variant of the library
(BaseIoLibIntrinsicTdx.inf) and switch at compile time instead of
having runtime switches all over the place.
take care,
Gerd
next prev parent reply other threads:[~2021-08-17 8:38 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-12 11:56 [PATCH 00/23] Enable Intel TDX in OvmfPkg (SEC/PEI) Min Xu
2021-08-12 11:56 ` [PATCH 01/23] OvmfPkg: Add Tdx BFV/CFV PCDs and PcdOvmfImageSizeInKb Min Xu
2021-08-12 11:56 ` [PATCH 02/23] OvmfPkg/Sec: Update the check logic in SevEsIsEnabled Min Xu
2021-09-11 1:13 ` Erdem Aktas
2021-09-13 3:04 ` Min Xu
2021-08-12 11:56 ` [PATCH 03/23] OvmfPkg/ResetVector: Enable Intel TDX in ResetVector of Ovmf Min Xu
2021-09-11 1:14 ` Erdem Aktas
2021-09-13 6:06 ` Min Xu
2021-09-14 2:16 ` Erdem Aktas
2021-08-12 11:56 ` [PATCH 04/23] MdePkg: Add Tdx.h Min Xu
2021-08-12 20:52 ` Michael D Kinney
2021-08-12 22:57 ` Min Xu
2021-08-12 11:56 ` [PATCH 05/23] MdePkg: Add TdxProbeLib to probe Intel Tdx Min Xu
2021-08-16 9:43 ` [edk2-devel] " Gerd Hoffmann
2021-08-17 0:14 ` Min Xu
2021-08-17 8:20 ` Gerd Hoffmann
2021-08-17 8:43 ` Min Xu
2021-08-17 8:58 ` Gerd Hoffmann
2021-09-11 1:14 ` Erdem Aktas
2021-09-13 6:11 ` [edk2-devel] " Min Xu
2021-08-12 11:56 ` [PATCH 06/23] MdePkg: Add TdxLib to wrap Tdx operations Min Xu
2021-09-11 1:15 ` Erdem Aktas
2021-08-12 11:56 ` [PATCH 07/23] MdePkg: Update BaseIoLibIntrinsicSev to support Tdx Min Xu
2021-08-17 8:38 ` Gerd Hoffmann [this message]
2021-08-18 5:54 ` [edk2-devel] " Min Xu
2021-08-19 6:30 ` Gerd Hoffmann
2021-08-19 13:12 ` Min Xu
2021-08-20 6:41 ` Gerd Hoffmann
2021-09-11 1:15 ` Erdem Aktas
2021-09-28 8:33 ` [edk2-devel] " Min Xu
2021-08-12 11:56 ` [PATCH 08/23] UefiCpuPkg: Support TDX in BaseXApicX2ApicLib Min Xu
2021-08-12 11:56 ` [PATCH 09/23] UefiCpuPkg: Add VmTdExitLibNull Min Xu
2021-08-12 11:56 ` [PATCH 10/23] OvmfPkg: Prepare OvmfPkg to use the VmTdExitLib library Min Xu
2021-08-12 11:56 ` [PATCH 11/23] OvmfPkg: Implement library support for VmTdExitLib in Ovmf Min Xu
2021-08-12 11:56 ` [PATCH 12/23] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception Min Xu
2021-08-12 11:56 ` [PATCH 13/23] UefiCpuPkg: Enable Tdx support in MpInitLib Min Xu
2021-08-12 11:56 ` [PATCH 14/23] OvmfPkg: Update SecEntry.nasm to support Tdx Min Xu
2021-08-12 11:56 ` [PATCH 15/23] OvmfPkg: Add IntelTdx.h in OvmfPkg/Include/IndustryStandard Min Xu
2021-08-12 11:56 ` [PATCH 16/23] OvmfPkg: Add TdxMailboxLib Min Xu
2021-08-12 11:56 ` [PATCH 17/23] MdePkg: Add EFI_RESOURCE_ATTRIBUTE_ENCRYPTED in PiHob.h Min Xu
2021-08-12 11:56 ` [PATCH 18/23] OvmfPkg: Enable Tdx in SecMain.c Min Xu
2021-08-19 6:49 ` [edk2-devel] " Gerd Hoffmann
2021-08-19 14:27 ` Min Xu
2021-08-20 7:22 ` Gerd Hoffmann
2021-08-24 12:07 ` Min Xu
2021-08-24 12:55 ` Ard Biesheuvel
2021-08-25 6:10 ` Yao, Jiewen
2021-08-25 7:52 ` Gerd Hoffmann
2021-08-25 9:07 ` Yao, Jiewen
2021-08-25 14:51 ` Gerd Hoffmann
2021-08-25 16:28 ` Yao, Jiewen
2021-08-26 8:31 ` Gerd Hoffmann
2021-08-26 16:58 ` Yao, Jiewen
2021-08-25 6:22 ` Gerd Hoffmann
2021-08-12 11:56 ` [PATCH 19/23] OvmfPkg: Check Tdx in QemuFwCfgPei to avoid DMA operation Min Xu
2021-08-12 11:56 ` [PATCH 20/23] MdePkg: Add AllocatePagesWithMemoryType support in PeiMemoryAllocationLib Min Xu
2021-08-12 20:43 ` Michael D Kinney
2021-08-15 2:51 ` Min Xu
2021-08-12 11:57 ` [PATCH 21/23] OvmfPkg: Add PcdUse1GPageTable support for TDX Min Xu
2021-08-12 11:57 ` [PATCH 22/23] MdeModulePkg: EFER should not be changed in TDX Min Xu
2021-08-12 11:57 ` [PATCH 23/23] OvmfPkg: Update PlatformPei to support TDX Min Xu
2021-08-31 10:45 ` [edk2-devel] [PATCH 00/23] Enable Intel TDX in OvmfPkg (SEC/PEI) Gerd Hoffmann
2021-09-01 5:41 ` Min Xu
2021-09-01 6:25 ` Gerd Hoffmann
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