From: "Gerd Hoffmann" <kraxel@redhat.com>
To: devel@edk2.groups.io, min.m.xu@intel.com
Cc: 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: [edk2-devel] [PATCH V2 21/28] OvmfPkg: Update PlatformPei to support TDX
Date: Wed, 13 Oct 2021 06:49:25 +0200 [thread overview]
Message-ID: <20211013044925.edspdvhh5t5baxez@sirius.home.kraxel.org> (raw)
In-Reply-To: <7a6c9317555de257ad0fd1d76c59c841fa601086.1633401643.git.min.m.xu@intel.com>
Hi,
> 2. Relocate mailbox
> At the beginning of system boot, a 4K-aligned, 4K-size memory (Td
> mailbox) is pre-allocated by host VMM. BSP & APs do the page accept
> together in that memory region.
> After that TDVF is designed to relocate the mailbox to a 4K-aligned,
> 4K-size memory block which is allocated in the ACPI Nvs memory. APs
> are waken up and spin around the relocated mailbox waiting for
> further command.
Why is the mailbox relocated? Are there any problems when simply
continuing to use the memfd page?
The memfd page location is known to qemu, so when not relocating the
mailbox the MADT update could be done on the host side.
take care,
Gerd
next prev parent reply other threads:[~2021-10-13 4:49 UTC|newest]
Thread overview: 91+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-05 3:39 [PATCH V2 00/28] Enable Intel TDX in OvmfPkg (Config-A) Min Xu
2021-10-05 3:39 ` [PATCH V2 01/28] OvmfPkg: Copy Main.asm from UefiCpuPkg to OvmfPkg's ResetVector Min Xu
2021-10-05 3:39 ` [PATCH V2 02/28] OvmfPkg: Enable TDX in ResetVector Min Xu
2021-10-05 3:39 ` [PATCH V2 03/28] OvmfPkg: Merge TEMP_MEM entries in Tdx metadata Min Xu
2021-10-05 3:39 ` [PATCH V2 04/28] MdePkg: Add Tdx.h Min Xu
2021-10-12 7:48 ` [edk2-devel] " Gerd Hoffmann
2021-10-05 3:39 ` [PATCH V2 05/28] MdePkg: Add TdxLib to wrap Tdx operations Min Xu
2021-10-12 8:22 ` [edk2-devel] " Gerd Hoffmann
2021-10-13 12:13 ` Min Xu
2021-10-14 5:30 ` Gerd Hoffmann
2021-10-22 2:06 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 06/28] MdePkg: Update BaseIoLibIntrinsicSev to support Tdx Min Xu
2021-10-12 10:05 ` [edk2-devel] " Gerd Hoffmann
2021-10-13 13:40 ` Min Xu
2021-10-14 5:37 ` Gerd Hoffmann
2021-10-14 6:24 ` Min Xu
2021-10-14 9:03 ` Gerd Hoffmann
2021-10-22 5:23 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 07/28] UefiCpuPkg: Support TDX in BaseXApicX2ApicLib Min Xu
2021-10-12 10:15 ` [edk2-devel] " Gerd Hoffmann
2021-10-13 14:06 ` Min Xu
2021-10-13 5:30 ` Ni, Ray
2021-10-14 7:58 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 08/28] UefiCpuPkg: Add VmTdExitLibNull Min Xu
2021-10-05 3:39 ` [PATCH V2 09/28] UefiPayloadPkg: Prepare UefiPayloadPkg to use the VmTdExitLib library Min Xu
2021-10-05 3:39 ` [PATCH V2 10/28] OvmfPkg: Prepare OvmfPkg " Min Xu
2021-10-05 3:39 ` [PATCH V2 11/28] OvmfPkg: Implement library support for VmTdExitLib in Ovmf Min Xu
2021-10-05 3:39 ` [PATCH V2 12/28] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VE exception Min Xu
2021-10-12 10:27 ` [edk2-devel] " Gerd Hoffmann
2021-10-26 5:06 ` Min Xu
2021-10-26 6:11 ` Gerd Hoffmann
2021-10-26 8:23 ` Min Xu
2021-10-26 10:24 ` Gerd Hoffmann
2021-10-26 12:09 ` Min Xu
2021-10-27 7:19 ` Gerd Hoffmann
2021-10-28 1:59 ` Yao, Jiewen
2021-10-28 15:35 ` Brijesh Singh
2021-10-28 15:52 ` Yao, Jiewen
2021-10-28 18:28 ` Lendacky, Thomas
2021-10-29 0:17 ` Yao, Jiewen
2021-10-29 4:52 ` Gerd Hoffmann
2021-10-29 7:51 ` Min Xu
2021-10-29 11:40 ` Gerd Hoffmann
2021-11-01 13:54 ` Sami Mujawar
2021-11-01 13:57 ` Yao, Jiewen
[not found] ` <16B2583BF2C9DB9C.5572@groups.io>
2021-10-29 0:20 ` Yao, Jiewen
2021-10-29 0:25 ` Brijesh Singh
[not found] ` <16B20F4407499229.28171@groups.io>
2021-10-28 2:07 ` Yao, Jiewen
2021-10-28 8:24 ` Gerd Hoffmann
2021-10-05 3:39 ` [PATCH V2 13/28] UefiCpuPkg: Enable Tdx support in MpInitLib Min Xu
2021-10-12 10:31 ` [edk2-devel] " Gerd Hoffmann
2021-10-14 0:27 ` Min Xu
2021-10-14 6:04 ` Gerd Hoffmann
2021-10-14 6:31 ` Min Xu
2021-10-14 6:56 ` Gerd Hoffmann
2021-10-13 6:01 ` Ni, Ray
2021-10-14 8:22 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 14/28] OvmfPkg: Update SecEntry.nasm to support Tdx Min Xu
2021-10-12 10:38 ` [edk2-devel] " Gerd Hoffmann
2021-10-14 0:55 ` Min Xu
2021-10-14 6:51 ` Gerd Hoffmann
2021-10-05 3:39 ` [PATCH V2 15/28] OvmfPkg: Add IntelTdx.h in OvmfPkg/Include/IndustryStandard Min Xu
2021-10-05 3:39 ` [PATCH V2 16/28] OvmfPkg: Add TdxMailboxLib Min Xu
2021-10-05 3:39 ` [PATCH V2 17/28] MdePkg: Add EFI_RESOURCE_ATTRIBUTE_ENCRYPTED in PiHob.h Min Xu
2021-10-05 3:39 ` [PATCH V2 18/28] OvmfPkg: Enable Tdx in SecMain.c Min Xu
2021-10-05 3:39 ` [PATCH V2 19/28] OvmfPkg: Check Tdx in QemuFwCfgPei to avoid DMA operation Min Xu
2021-10-05 3:39 ` [PATCH V2 20/28] MdeModulePkg: EFER should not be changed in TDX Min Xu
2021-10-05 3:39 ` [PATCH V2 21/28] OvmfPkg: Update PlatformPei to support TDX Min Xu
2021-10-13 4:49 ` Gerd Hoffmann [this message]
2021-10-15 1:31 ` [edk2-devel] " Yao, Jiewen
2021-10-15 5:45 ` Gerd Hoffmann
2021-10-15 6:41 ` Yao, Jiewen
2021-10-05 3:39 ` [PATCH V2 22/28] UefiCpuPkg: Define ConfidentialComputingGuestAttr (Temp) Min Xu
2021-10-05 3:39 ` [PATCH V2 23/28] OvmfPkg: Update AcpiPlatformDxe to alter MADT table Min Xu
2021-10-05 3:39 ` [PATCH V2 24/28] OvmfPkg: Add TdxDxe driver Min Xu
2021-10-12 11:50 ` [edk2-devel] " Gerd Hoffmann
2021-10-18 8:38 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 25/28] OvmfPkg/BaseMemEncryptTdxLib: Add TDX helper library Min Xu
2021-10-12 12:13 ` [edk2-devel] " Gerd Hoffmann
2021-10-05 3:39 ` [PATCH V2 26/28] OvmfPkg/QemuFwCfgLib: Support Tdx in QemuFwCfgDxe Min Xu
2021-10-05 3:39 ` [PATCH V2 27/28] OvmfPkg: Update IoMmuDxe to support TDX Min Xu
2021-10-12 12:15 ` [edk2-devel] " Gerd Hoffmann
2021-10-14 2:11 ` Min Xu
2021-10-05 3:39 ` [PATCH V2 28/28] OvmfPkg: Add LocalApicTimerDxe Min Xu
2021-10-12 13:02 ` [edk2-devel] " Gerd Hoffmann
2021-10-14 5:20 ` Min Xu
2021-10-15 1:21 ` Yao, Jiewen
2021-10-25 7:37 ` Min Xu
2021-10-25 11:27 ` Gerd Hoffmann
2021-10-26 1:29 ` Min Xu
2021-10-26 5:50 ` Gerd Hoffmann
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