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| author | Michael Kinney <michael.d.kinney@intel.com> | 2016-11-17 12:43:04 -0800 |
|---|---|---|
| committer | Michael Kinney <michael.d.kinney@intel.com> | 2016-11-17 17:37:50 -0800 |
| commit | c773514d457265e9ada334572641e1b137c66aac (patch) | |
| tree | c224281b6eba7a6c09a0ecff690ed9d0ec8c9159 /UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c | |
| parent | 672b80c8b74718e8c82373b9d59a06f5b10ddc8c (diff) | |
| download | edk2-c773514d457265e9ada334572641e1b137c66aac.tar.gz edk2-c773514d457265e9ada334572641e1b137c66aac.tar.bz2 edk2-c773514d457265e9ada334572641e1b137c66aac.zip | |
UefiCpuPkg/PiSmmCpuDxeSmm: Add volatile to mNumberToFinish
Add volatile qualifier to mNumberToFinish to prevent GCC 5.4
compiler from optimizing away required logic in ACPI S3 resume.
Cc: Liming Gao <liming.gao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Diffstat (limited to 'UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c')
| -rw-r--r-- | UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c index 4af86b70f2..532b7c44bd 100644 --- a/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c +++ b/UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c @@ -55,7 +55,7 @@ AsmGetAddressMap ( #define LEGACY_REGION_BASE (0xA0000 - LEGACY_REGION_SIZE)
ACPI_CPU_DATA mAcpiCpuData;
-UINT32 mNumberToFinish;
+volatile UINT32 mNumberToFinish;
MP_CPU_EXCHANGE_INFO *mExchangeInfo;
BOOLEAN mRestoreSmmConfigurationInS3 = FALSE;
VOID *mGdtForAp = NULL;
|