From: "Lendacky, Thomas" <thomas.lendacky@amd.com>
To: devel@edk2.groups.io
Cc: Jordan Justen <jordan.l.justen@intel.com>,
Laszlo Ersek <lersek@redhat.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Michael D Kinney <michael.d.kinney@intel.com>,
Liming Gao <liming.gao@intel.com>,
Eric Dong <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Brijesh Singh <brijesh.singh@amd.com>,
Benjamin You <benjamin.you@intel.com>,
Dandan Bi <dandan.bi@intel.com>, Guo Dong <guo.dong@intel.com>,
Hao A Wu <hao.a.wu@intel.com>,
Jian J Wang <jian.j.wang@intel.com>,
Maurice Ma <maurice.ma@intel.com>
Subject: [RFC PATCH v3 00/43] SEV-ES guest support
Date: Wed, 20 Nov 2019 14:06:22 -0600 [thread overview]
Message-ID: <cover.1574280425.git.thomas.lendacky@amd.com> (raw)
This patch series provides support for running EDK2/OVMF under SEV-ES.
Secure Encrypted Virtualization - Encrypted State (SEV-ES) expands on the
SEV support to protect the guest register state from the hypervisor. See
"AMD64 Architecture Programmer's Manual Volume 2: System Programming",
section "15.35 Encrypted State (SEV-ES)" [1].
In order to allow a hypervisor to perform functions on behalf of a guest,
there is architectural support for notifying a guest's operating system
when certain types of VMEXITs are about to occur. This allows the guest to
selectively share information with the hypervisor to satisfy the requested
function. The notification is performed using a new exception, the VMM
Communication exception (#VC). The information is shared through the
Guest-Hypervisor Communication Block (GHCB) using the VMGEXIT instruction.
The GHCB format and the protocol for using it is documented in "SEV-ES
Guest-Hypervisor Communication Block Standardization" [2].
The main areas of the EDK2 code that are updated to support SEV-ES are
around the exception handling support and the AP boot support.
Exception support is required starting in Sec, continuing through Pei
and into Dxe in order to handle #VC exceptions that are generated. Each
AP requires it's own GHCB page as well as a page to hold values specific
to that AP.
AP booting poses some interesting challenges. The INIT-SIPI-SIPI sequence
is typically used to boot the APs. However, the hypervisor is not allowed
to update the guest registers. The GHCB document [2] talks about how SMP
booting under SEV-ES is performed.
Since the GHCB page must be a shared (unencrypted) page, the processor
must be running in long mode in order for the guest and hypervisor to
communicate with each other. As a result, SEV-ES is only supported under
the X64 architecture.
[1] https://www.amd.com/system/files/TechDocs/24593.pdf
[2] https://developer.amd.com/wp-content/resources/56421.pdf
---
These patches are based on commit:
cc6854506c2b ("Readme.md: remove positional references from submodule description")
Proper execution of SEV-ES relies on Bugzilla 2340 being fixed.
A version of the tree (with an extra patch to workaround Bugzilla 2340) can
be found at:
https://github.com/AMDESE/ovmf/tree/sev-es-v9
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Benjamin You <benjamin.you@intel.com>
Cc: Dandan Bi <dandan.bi@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Guo Dong <guo.dong@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Maurice Ma <maurice.ma@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Changes since v2:
- Added a way to locate the SEV-ES fixed AP RIP address for starting
AP's to avoid updating the actual flash image (build time location
that is identified with a GUID value).
- Create a VmgExit library to replace static inline functions.
- Move some PCDs to the appropriate packages
- Add support for writing to QEMU flash under SEV-ES
- Add additional MMIO opcode support
- Cleaned up the GHCB MSR CPUID protocol support
Changes since v1:
- Patches reworked to be more specific to the component/area being updated
and order of definition/usage
- Created a library for VMGEXIT-related functions to replace use of inline
functions
- Allocation method for GDT changed from AllocatePool to AllocatePages
- Early caching only enabled for SEV-ES guests
- Ensure AP loop mode set to halt loop mode for SEV-ES guests
- Reserved SEC GHCB-related memory areas when S3 is enabled
Tom Lendacky (43):
MdePkg: Create PCDs to be used in support of SEV-ES
MdePkg: Add the MSR definition for the GHCB register
MdePkg: Add a structure definition for the GHCB
MdeModulePkg/DxeIplPeim: Support GHCB pages when creating page tables
MdePkg/BaseLib: Add support for the XGETBV instruction
MdePkg/BaseLib: Add support for the VMGEXIT instruction
UefiCpuPkg: Implement library support for VMGEXIT
UefiCpuPkg/CpuExceptionHandler: Add base support for the #VC exception
UefiCpuPkg/CpuExceptionHandler: Add support for IOIO_PROT NAE events
UefiCpuPkg/CpuExceptionHandler: Support string IO for IOIO_PROT NAE
events
UefiCpuPkg/CpuExceptionHandler: Add support for CPUID NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for MSR_PROT NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for NPF NAE events (MMIO)
UefiCpuPkg/CpuExceptionHandler: Add support for WBINVD NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for RDTSC NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for RDPMC NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for INVD NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for VMMCALL NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for RDTSCP NAE events
UefiCpuPkg/CpuExceptionHandler: Add support for MONITOR/MONITORX NAE
events
UefiCpuPkg/CpuExceptionHandler: Add support for MWAIT/MWAITX NAE
events
UefiCpuPkg/CpuExceptionHandler: Add support for DR7 Read/Write NAE
events
OvmfPkg/MemEncryptSevLib: Add an SEV-ES guest indicator function
OvmfPkg: Add support to perform SEV-ES initialization
OvmfPkg/ResetVector: Add support for a 32-bit SEV check
OvmfPkg: Create a GHCB page for use during Sec phase
OvmfPkg/PlatformPei: Reserve GHCB-related areas if S3 is supported
OvmfPkg: Create GHCB pages for use during Pei and Dxe phase
OvmfPkg/PlatformPei: Move early GDT into ram when SEV-ES is enabled
OvmfPkg/Sec: Add #VC exception handling for Sec phase
OvmfPkg/Sec: Enable cache early to speed up booting
OvmfPkg/QemuFlashFvbServicesRuntimeDxe: Bypass flash detection with
SEV-ES is enabled
MdeModulePkg: Reserve a 16-bit protected mode code segment descriptor
UefiCpuPkg: Add a 16-bit protected mode code segment descriptor
UefiCpuPkg/MpInitLib: Add a CPU MP data flag to indicate if SEV-ES is
enabled
UefiCpuPkg: Allow AP booting under SEV-ES
OvmfPkg: Reserve a page in memory for the SEV-ES AP reset vector
OvmfPkg: Move the GHCB allocations into reserved memory
MdePkg: Add a finalization function to the CPU protocol
UefiCpuPkg/MpInitLib: Add MP finalization interface to MpInitLib
UefiCpuPkg/MpInitLib: Prepare SEV-ES guest APs for OS use
UefiCpuPkg/CpuDxe: Provide an DXE MP finalization routine to support
SEV-ES
MdeModulePkg/DxeCore: Perform the CPU protocol finalization support
MdeModulePkg/MdeModulePkg.dec | 23 +
OvmfPkg/OvmfPkg.dec | 5 +
UefiCpuPkg/UefiCpuPkg.dec | 8 +
OvmfPkg/OvmfPkgIa32.dsc | 11 +
OvmfPkg/OvmfPkgIa32X64.dsc | 11 +
OvmfPkg/OvmfPkgX64.dsc | 11 +
UefiCpuPkg/UefiCpuPkg.dsc | 5 +
UefiPayloadPkg/UefiPayloadPkgIa32.dsc | 2 +
UefiPayloadPkg/UefiPayloadPkgIa32X64.dsc | 2 +
OvmfPkg/OvmfPkgX64.fdf | 9 +
MdeModulePkg/Core/DxeIplPeim/DxeIpl.inf | 2 +
MdePkg/Library/BaseLib/BaseLib.inf | 4 +
OvmfPkg/PlatformPei/PlatformPei.inf | 7 +
.../FvbServicesRuntimeDxe.inf | 2 +
OvmfPkg/ResetVector/ResetVector.inf | 9 +
OvmfPkg/Sec/SecMain.inf | 1 +
.../DxeCpuExceptionHandlerLib.inf | 5 +
.../PeiCpuExceptionHandlerLib.inf | 5 +
.../SecPeiCpuExceptionHandlerLib.inf | 8 +
UefiCpuPkg/Library/MpInitLib/DxeMpInitLib.inf | 4 +
UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf | 4 +
UefiCpuPkg/Library/VmgExitLib/VmgExitLib.inf | 33 +
.../Core/DxeIplPeim/X64/VirtualMemory.h | 12 +-
MdePkg/Include/Library/BaseLib.h | 31 +
MdePkg/Include/Protocol/Cpu.h | 18 +
MdePkg/Include/Register/Amd/Fam17Msr.h | 28 +
MdePkg/Include/Register/Amd/Ghcb.h | 117 ++
OvmfPkg/Include/Library/MemEncryptSevLib.h | 12 +
UefiCpuPkg/CpuDxe/CpuDxe.h | 12 +
UefiCpuPkg/CpuDxe/CpuGdt.h | 4 +-
UefiCpuPkg/Include/Library/MpInitLib.h | 14 +
UefiCpuPkg/Include/Library/VmgExitLib.h | 96 ++
.../CpuExceptionHandlerLib/AMDSevVcCommon.h | 26 +
.../CpuExceptionCommon.h | 2 +
UefiCpuPkg/Library/MpInitLib/MpLib.h | 79 +-
MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c | 5 +
.../Core/DxeIplPeim/Ia32/DxeLoadFunc.c | 6 +-
.../Core/DxeIplPeim/X64/DxeLoadFunc.c | 11 +-
.../Core/DxeIplPeim/X64/VirtualMemory.c | 49 +-
MdePkg/Library/BaseLib/Ia32/GccInline.c | 45 +
MdePkg/Library/BaseLib/X64/GccInline.c | 47 +
.../MemEncryptSevLibInternal.c | 77 +-
OvmfPkg/PlatformPei/AmdSev.c | 82 ++
OvmfPkg/PlatformPei/MemDetect.c | 23 +
.../QemuFlash.c | 38 +-
OvmfPkg/Sec/SecMain.c | 74 +-
UefiCpuPkg/CpuDxe/CpuDxe.c | 21 +-
UefiCpuPkg/CpuDxe/CpuGdt.c | 8 +-
.../CpuExceptionCommon.c | 2 +-
.../Ia32/AMDSevVcCommon.c | 20 +
.../PeiDxeAMDSevVcHandler.c | 29 +
.../PeiDxeSmmCpuException.c | 16 +
.../SecAMDSevVcHandler.c | 50 +
.../SecPeiCpuException.c | 16 +
.../X64/AMDSevVcCommon.c | 1230 +++++++++++++++++
UefiCpuPkg/Library/MpInitLib/DxeMpLib.c | 136 +-
UefiCpuPkg/Library/MpInitLib/MpLib.c | 280 +++-
UefiCpuPkg/Library/MpInitLib/PeiMpLib.c | 35 +
UefiCpuPkg/Library/VmgExitLib/VmgExitLib.c | 132 ++
UefiCpuPkg/PiSmmCpuDxeSmm/X64/SmmFuncsArch.c | 2 +-
MdePkg/Library/BaseLib/Ia32/VmgExit.nasm | 37 +
MdePkg/Library/BaseLib/Ia32/XGetBv.nasm | 31 +
MdePkg/Library/BaseLib/X64/VmgExit.nasm | 32 +
MdePkg/Library/BaseLib/X64/XGetBv.nasm | 34 +
OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm | 94 ++
OvmfPkg/ResetVector/Ia32/PageTables64.asm | 337 ++++-
OvmfPkg/ResetVector/ResetVector.nasmb | 19 +
.../X64/ExceptionHandlerAsm.nasm | 15 +
UefiCpuPkg/Library/MpInitLib/Ia32/MpEqu.inc | 2 +-
.../Library/MpInitLib/Ia32/MpFuncs.nasm | 15 +
UefiCpuPkg/Library/MpInitLib/X64/MpEqu.inc | 4 +-
UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 370 ++++-
UefiCpuPkg/Library/VmgExitLib/VmgExitLib.uni | 15 +
.../ResetVector/Vtf0/Ia16/Real16ToFlat32.asm | 9 +
74 files changed, 3969 insertions(+), 101 deletions(-)
create mode 100644 UefiCpuPkg/Library/VmgExitLib/VmgExitLib.inf
create mode 100644 MdePkg/Include/Register/Amd/Ghcb.h
create mode 100644 UefiCpuPkg/Include/Library/VmgExitLib.h
create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/AMDSevVcCommon.h
create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/Ia32/AMDSevVcCommon.c
create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/PeiDxeAMDSevVcHandler.c
create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/SecAMDSevVcHandler.c
create mode 100644 UefiCpuPkg/Library/CpuExceptionHandlerLib/X64/AMDSevVcCommon.c
create mode 100644 UefiCpuPkg/Library/VmgExitLib/VmgExitLib.c
create mode 100644 MdePkg/Library/BaseLib/Ia32/VmgExit.nasm
create mode 100644 MdePkg/Library/BaseLib/Ia32/XGetBv.nasm
create mode 100644 MdePkg/Library/BaseLib/X64/VmgExit.nasm
create mode 100644 MdePkg/Library/BaseLib/X64/XGetBv.nasm
create mode 100644 OvmfPkg/ResetVector/Ia16/ResetVectorVtf0.asm
create mode 100644 UefiCpuPkg/Library/VmgExitLib/VmgExitLib.uni
--
2.17.1
next reply other threads:[~2019-11-20 20:07 UTC|newest]
Thread overview: 82+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-20 20:06 Lendacky, Thomas [this message]
2019-11-20 20:06 ` [RFC PATCH v3 01/43] MdePkg: Create PCDs to be used in support of SEV-ES Lendacky, Thomas
2019-12-12 6:53 ` Ni, Ray
2019-12-12 20:48 ` Lendacky, Thomas
2019-12-13 1:21 ` Ni, Ray
2019-11-20 20:06 ` [RFC PATCH v3 02/43] MdePkg: Add the MSR definition for the GHCB register Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 03/43] MdePkg: Add a structure definition for the GHCB Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 04/43] MdeModulePkg/DxeIplPeim: Support GHCB pages when creating page tables Lendacky, Thomas
2019-12-12 6:53 ` [edk2-devel] " Ni, Ray
2019-12-12 20:58 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 05/43] MdePkg/BaseLib: Add support for the XGETBV instruction Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 06/43] MdePkg/BaseLib: Add support for the VMGEXIT instruction Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 07/43] UefiCpuPkg: Implement library support for VMGEXIT Lendacky, Thomas
2019-11-21 11:15 ` [edk2-devel] " Laszlo Ersek
2019-11-21 16:48 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 08/43] UefiCpuPkg/CpuExceptionHandler: Add base support for the #VC exception Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 09/43] UefiCpuPkg/CpuExceptionHandler: Add support for IOIO_PROT NAE events Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 10/43] UefiCpuPkg/CpuExceptionHandler: Support string IO " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 11/43] UefiCpuPkg/CpuExceptionHandler: Add support for CPUID " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 12/43] UefiCpuPkg/CpuExceptionHandler: Add support for MSR_PROT " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 13/43] UefiCpuPkg/CpuExceptionHandler: Add support for NPF NAE events (MMIO) Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 14/43] UefiCpuPkg/CpuExceptionHandler: Add support for WBINVD NAE events Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 15/43] UefiCpuPkg/CpuExceptionHandler: Add support for RDTSC " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 16/43] UefiCpuPkg/CpuExceptionHandler: Add support for RDPMC " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 17/43] UefiCpuPkg/CpuExceptionHandler: Add support for INVD " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 18/43] UefiCpuPkg/CpuExceptionHandler: Add support for VMMCALL " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 19/43] UefiCpuPkg/CpuExceptionHandler: Add support for RDTSCP " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 20/43] UefiCpuPkg/CpuExceptionHandler: Add support for MONITOR/MONITORX " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 21/43] UefiCpuPkg/CpuExceptionHandler: Add support for MWAIT/MWAITX " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 22/43] UefiCpuPkg/CpuExceptionHandler: Add support for DR7 Read/Write " Lendacky, Thomas
2019-12-12 6:53 ` Ni, Ray
2019-12-12 20:39 ` Lendacky, Thomas
2019-12-12 6:53 ` Ni, Ray
2019-12-12 20:27 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 23/43] OvmfPkg/MemEncryptSevLib: Add an SEV-ES guest indicator function Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 24/43] OvmfPkg: Add support to perform SEV-ES initialization Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 25/43] OvmfPkg/ResetVector: Add support for a 32-bit SEV check Lendacky, Thomas
2019-11-21 11:02 ` [edk2-devel] " Laszlo Ersek
2019-11-20 20:06 ` [RFC PATCH v3 26/43] OvmfPkg: Create a GHCB page for use during Sec phase Lendacky, Thomas
2019-11-21 11:29 ` [edk2-devel] " Laszlo Ersek
2019-11-20 20:06 ` [RFC PATCH v3 27/43] OvmfPkg/PlatformPei: Reserve GHCB-related areas if S3 is supported Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 28/43] OvmfPkg: Create GHCB pages for use during Pei and Dxe phase Lendacky, Thomas
2019-12-12 6:54 ` Ni, Ray
2019-12-12 21:03 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 29/43] OvmfPkg/PlatformPei: Move early GDT into ram when SEV-ES is enabled Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 30/43] OvmfPkg/Sec: Add #VC exception handling for Sec phase Lendacky, Thomas
2019-11-21 12:06 ` [edk2-devel] " Laszlo Ersek
2019-11-21 20:46 ` Lendacky, Thomas
2019-11-22 12:52 ` Laszlo Ersek
2019-11-22 16:30 ` Lendacky, Thomas
2019-11-22 21:10 ` Laszlo Ersek
2019-11-22 22:48 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 31/43] OvmfPkg/Sec: Enable cache early to speed up booting Lendacky, Thomas
2019-11-21 12:08 ` [edk2-devel] " Laszlo Ersek
2019-11-20 20:06 ` [RFC PATCH v3 32/43] OvmfPkg/QemuFlashFvbServicesRuntimeDxe: Bypass flash detection with SEV-ES is enabled Lendacky, Thomas
2019-11-21 12:31 ` [edk2-devel] " Laszlo Ersek
2019-11-21 21:11 ` Lendacky, Thomas
2019-11-22 12:20 ` Laszlo Ersek
2019-11-20 20:06 ` [RFC PATCH v3 33/43] MdeModulePkg: Reserve a 16-bit protected mode code segment descriptor Lendacky, Thomas
2019-12-12 6:57 ` Ni, Ray
2019-12-12 21:19 ` [edk2-devel] " Lendacky, Thomas
2019-12-13 1:20 ` Ni, Ray
2019-11-20 20:06 ` [RFC PATCH v3 34/43] UefiCpuPkg: Add " Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 35/43] UefiCpuPkg/MpInitLib: Add a CPU MP data flag to indicate if SEV-ES is enabled Lendacky, Thomas
2019-12-12 7:01 ` Ni, Ray
2019-12-12 21:21 ` Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 36/43] UefiCpuPkg: Allow AP booting under SEV-ES Lendacky, Thomas
2019-11-20 20:06 ` [RFC PATCH v3 37/43] OvmfPkg: Reserve a page in memory for the SEV-ES AP reset vector Lendacky, Thomas
2019-11-21 19:27 ` [edk2-devel] " Laszlo Ersek
2019-11-21 22:49 ` Lendacky, Thomas
2019-11-22 16:06 ` Laszlo Ersek
2019-11-22 16:40 ` Lendacky, Thomas
2019-11-20 20:07 ` [RFC PATCH v3 38/43] OvmfPkg: Move the GHCB allocations into reserved memory Lendacky, Thomas
2019-11-20 20:07 ` [RFC PATCH v3 39/43] MdePkg: Add a finalization function to the CPU protocol Lendacky, Thomas
2019-11-20 21:32 ` [RFC PATCH v3 40/43] UefiCpuPkg/MpInitLib: Add MP finalization interface to MpInitLib Lendacky, Thomas
2019-11-20 21:32 ` [RFC PATCH v3 41/43] UefiCpuPkg/MpInitLib: Prepare SEV-ES guest APs for OS use Lendacky, Thomas
2019-11-20 21:32 ` [RFC PATCH v3 42/43] UefiCpuPkg/CpuDxe: Provide an DXE MP finalization routine to support SEV-ES Lendacky, Thomas
2019-11-20 21:32 ` [RFC PATCH v3 43/43] MdeModulePkg/DxeCore: Perform the CPU protocol finalization support Lendacky, Thomas
2019-11-21 1:53 ` [edk2-devel] [RFC PATCH v3 00/43] SEV-ES guest support Nate DeSimone
2019-11-21 15:50 ` Lendacky, Thomas
2019-11-21 9:45 ` Laszlo Ersek
2019-11-21 9:48 ` Laszlo Ersek
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