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| author | Lou, Yun <Yun.Lou@intel.com> | 2021-02-01 16:28:50 +0800 |
|---|---|---|
| committer | mergify[bot] <37929162+mergify[bot]@users.noreply.github.com> | 2021-02-03 07:41:46 +0000 |
| commit | e806bb29cfde1b242bb37e72e77364dd812830e0 (patch) | |
| tree | 0a73c3173fd6b55e42e33b37dba0c96676574a75 /UefiCpuPkg | |
| parent | 51b96e4b4cb6d68093f7c7004d4716152ad3ac79 (diff) | |
| download | edk2-e806bb29cfde1b242bb37e72e77364dd812830e0.tar.gz edk2-e806bb29cfde1b242bb37e72e77364dd812830e0.tar.bz2 edk2-e806bb29cfde1b242bb37e72e77364dd812830e0.zip | |
UefiCpuPkg/CpuCacheInfoLib: Support no enabled AP case in DxeLib
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3195
Support system has no enabled AP case in DxeCpuCacheInfoLib.
Otherwise, if the system only has 1 BSP without any enabled AP,
UEFI POST hangs when invoking StartupAllAPs protocol because
EFI_NOT_STARTED is returned.
Signed-off-by: Jason Lou <yun.lou@intel.com>
Reviewed-by: Ray Ni <ray.ni@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Rahul Kumar <rahul1.kumar@intel.com>
Diffstat (limited to 'UefiCpuPkg')
| -rw-r--r-- | UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c b/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c index bb788e3614..d810294e21 100644 --- a/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c +++ b/UefiCpuPkg/Library/CpuCacheInfoLib/DxeCpuCacheInfoLib.c @@ -51,6 +51,13 @@ CpuCacheInfoStartupAllCPUs ( EFI_STATUS Status;
Status = MpServices.Protocol->StartupAllAPs (MpServices.Protocol, Procedure, FALSE, NULL, 0, ProcedureArgument, NULL);
+ if (Status == EFI_NOT_STARTED) {
+ //
+ // EFI_NOT_STARTED is returned when there is no enabled AP.
+ // Treat this case as EFI_SUCCESS.
+ //
+ Status = EFI_SUCCESS;
+ }
ASSERT_EFI_ERROR (Status);
Procedure (ProcedureArgument);
|