diff options
Diffstat (limited to 'ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c')
| -rw-r--r-- | ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c index da5755106e..3a46f360ef 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Lib.c @@ -119,3 +119,18 @@ ArmHasVhe ( {
return ((ArmReadIdAA64Mmfr1 () & AARCH64_MMFR1_VH) != 0);
}
+
+/**
+ Checks whether the CPU implements the Trace Buffer Extension.
+
+ @retval TRUE FEAT_TRBE is implemented.
+ @retval FALSE FEAT_TRBE is not mplemented.
+**/
+BOOLEAN
+EFIAPI
+ArmHasTrbe (
+ VOID
+ )
+{
+ return ((ArmReadIdAA64Dfr0 () & AARCH64_DFR0_TRBE) != 0);
+}
|