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| author | duntan <dun.tan@intel.com> | 2024-01-08 13:08:03 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2024-01-09 16:31:57 +0000 |
| commit | 2a5c08caaf26568bc8e03cb4195c231af70da35c (patch) | |
| tree | 2c49d239183aab377e5f77185c27ec404a966b46 /UefiCpuPkg/Include | |
| parent | f2b074398ca0624206355524a1c5f653ff87876a (diff) | |
| download | edk2-2a5c08caaf26568bc8e03cb4195c231af70da35c.tar.gz | |
UefiCpuPkg: set EXTENDED_PROCESSOR_INFORMATION to 0
Set EXTENDED_PROCESSOR_INFORMATION to 0 in API
MpInitLibGetProcessorInfo() of MpInitLibUp. This
commit use ZeroMem() to set all fileds in output
EFI_PROCESSOR_INFORMATION to 0 before StatusFlag
field is reassigned.
Previously EXTENDED_PROCESSOR_INFORMATION in the API
MpInitLibGetProcessorInfo() of MpInitLibUp is ignored.
In PEI/DXE MpInitLib, EXTENDED_PROCESSOR_INFORMATION
will be retrived when BIT24 of input ProcessorNumber
is set. This commit can avoid garbage in the output
structure in MpInitLibGetProcessorInfo() of MpInitLibUp.
Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Min Xu <min.m.xu@intel.com>
Message-Id: <20240108050804.1718-2-dun.tan@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Diffstat (limited to 'UefiCpuPkg/Include')
| -rw-r--r-- | UefiCpuPkg/Include/Library/MpInitLib.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Library/MpInitLib.h b/UefiCpuPkg/Include/Library/MpInitLib.h index 1853c46415..842c6f7ff9 100644 --- a/UefiCpuPkg/Include/Library/MpInitLib.h +++ b/UefiCpuPkg/Include/Library/MpInitLib.h @@ -63,6 +63,8 @@ MpInitLibGetNumberOfProcessors ( instant this call is made. This service may only be called from the BSP.
@param[in] ProcessorNumber The handle number of processor.
+ Lower 24 bits contains the actual processor number.
+ BIT24 indicates if the EXTENDED_PROCESSOR_INFORMATION will be retrived.
@param[out] ProcessorInfoBuffer A pointer to the buffer where information for
the requested processor is deposited.
@param[out] HealthData Return processor health data.
|