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authorSong, BinX <binx.song@intel.com>2017-12-13 10:35:15 +0800
committerEric Dong <eric.dong@intel.com>2017-12-13 16:40:25 +0800
commit5c59537c1092a1372913274636a8d766fdd97e61 (patch)
tree2e5ea5e5b8e802c34ca28f291d5d9ad8585433ce /UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h
parent8a5ef41ebb3dded5e9578ff4b716b87416b9c95f (diff)
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UefiCpuPkg: Check invalid RegisterCpuFeature parameter
V2: Update function name, add more detail description. V1: Check and assert invalid RegisterCpuFeature function parameter Cc: Eric Dong <eric.dong@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Bell Song <binx.song@intel.com> Reviewed-by: Eric Dong <eric.dong@intel.com> Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
Diffstat (limited to 'UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h')
-rw-r--r--UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h b/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h
index 9331e49d13..fc3ccda1ba 100644
--- a/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h
+++ b/UefiCpuPkg/Include/Library/RegisterCpuFeaturesLib.h
@@ -71,6 +71,11 @@
#define CPU_FEATURE_APIC_TPR_UPDATE_MESSAGE (32+9)
#define CPU_FEATURE_ENERGY_PERFORMANCE_BIAS (32+10)
#define CPU_FEATURE_PPIN (32+11)
+//
+// Currently, CPU_FEATURE_PROC_TRACE is the MAX feature we support.
+// If you define a feature bigger than it, please also replace it
+// in RegisterCpuFeatureLibIsFeatureValid function.
+//
#define CPU_FEATURE_PROC_TRACE (32+12)
#define CPU_FEATURE_BEFORE_ALL BIT27