tyler.durden
/
audk
mirror of https://github.com/acidanthera/audk.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

UefiCpuPkg/MpInitLib: Set the SW exit fields when performing VMGEXIT 

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: 20da7ca42a
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>
Message-Id: <6e11dd7e161bddeacc3fb4817467cef24510c31c.1604685192.git.thomas.lendacky@amd.com>
This commit is contained in:
Tom Lendacky 2020-11-06 11:53:09 -06:00 committed by mergify[bot]
parent 12a0c11e81
commit fb2a1a36a2
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
UefiCpuPkg/Library/MpInitLib/X64/MpFuncs.nasm
View File

@ -533,6 +533,12 @@ BITS 64
mov rax, 0x80000004 ; VMGEXIT AP_RESET_HOLD mov rax, 0x80000004 ; VMGEXIT AP_RESET_HOLD
mov [rdx + 0x390], rax 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 rdx
pop rcx pop rcx