From: "Lendacky, Thomas" <thomas.lendacky@amd.com>
To: devel@edk2.groups.io
Cc: Brijesh Singh <brijesh.singh@amd.com>,
Eric Dong <eric.dong@intel.com>, Ray Ni <ray.ni@intel.com>,
Laszlo Ersek <lersek@redhat.com>,
Rahul Kumar <rahul1.kumar@intel.com>
Subject: [PATCH v4 07/11] UefiCpuPkg/MpInitLib: Set the SW exit fields when performing VMGEXIT
Date: Fri, 6 Nov 2020 11:53:09 -0600 [thread overview]
Message-ID: <6e11dd7e161bddeacc3fb4817467cef24510c31c.1604685192.git.thomas.lendacky@amd.com> (raw)
In-Reply-To: <cover.1604685192.git.thomas.lendacky@amd.com>
From: Tom Lendacky <thomas.lendacky@amd.com>
BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3008
All fields that are set in the GHCB should have their associated bit in
the GHCB ValidBitmap field set. Add support to set the bits for the
software exit information fields when performing a VMGEXIT (SwExitCode,
SwExitInfo1, SwExitInfo2).
Fixes: 20da7ca42a33d3ef767ce4129f11496af7f67c9f
Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Acked-by: Ray Ni <ray.ni@intel.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
---
UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm
index 5d30f35b201c..5532a1d391bc 100644
--- a/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm
+++ b/UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm
@@ -533,6 +533,12 @@ BITS 64
mov rax, 0x80000004 ; VMGEXIT AP_RESET_HOLD
mov [rdx + 0x390], rax
+ mov rax, 114 ; Set SwExitCode valid bit
+ bts [rdx + 0x3f0], rax
+ inc rax ; Set SwExitInfo1 valid bit
+ bts [rdx + 0x3f0], rax
+ inc rax ; Set SwExitInfo2 valid bit
+ bts [rdx + 0x3f0], rax
pop rdx
pop rcx
--
2.28.0
next prev parent reply other threads:[~2020-11-06 17:54 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-06 17:53 [PATCH v4 00/11] SEV-ES guest support fixes and cleanup Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 01/11] MdePkg: Clean up GHCB field offsets and save area Lendacky, Thomas
2020-11-09 5:24 ` 回复: [edk2-devel] " gaoliming
2020-11-06 17:53 ` [PATCH v4 02/11] UefiCpuPkg/VmgExitLib: Add interfaces to set/read GHCB ValidBitmap bits Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 03/11] OvmfPkg/VmgExitLib: Implement new VmgExitLib interfaces Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 04/11] OvmfPkg/VmgExitLib: Set the SW exit fields when performing VMGEXIT Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 05/11] OvmfPkg/VmgExitLib: Set the SwScratch valid bit for IOIO events Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 06/11] OvmfPkg/VmgExitLib: Set the SwScratch valid bit for MMIO events Lendacky, Thomas
2020-11-06 17:53 ` Lendacky, Thomas [this message]
2020-11-06 17:53 ` [PATCH v4 08/11] OvmfPkg/QemuFlashFvbServicesRuntimeDxe: Set the SwScratch valid bit Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 09/11] OvmfPkg/QemuFlashFvbServicesRuntimeDxe: Fix erase blocks for SEV-ES Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 10/11] UefiCpuPkg, OvmfPkg: Disable interrupts when using the GHCB Lendacky, Thomas
2020-11-06 17:53 ` [PATCH v4 11/11] UefiCpuPkg/MpInitLib: For SEV-ES guest, set stack based on processor number Lendacky, Thomas
2020-11-10 19:28 ` [edk2-devel] [PATCH v4 00/11] SEV-ES guest support fixes and cleanup Laszlo Ersek
2020-11-10 22:22 ` Lendacky, Thomas
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