diff options
| -rw-r--r-- | ArmPkg/Include/Chipset/AArch64.h | 5 | ||||
| -rw-r--r-- | ArmPkg/Library/ArmLib/AArch64/AArch64Support.S | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/ArmPkg/Include/Chipset/AArch64.h b/ArmPkg/Include/Chipset/AArch64.h index e53605f641..aa6a7e0a00 100644 --- a/ArmPkg/Include/Chipset/AArch64.h +++ b/ArmPkg/Include/Chipset/AArch64.h @@ -204,6 +204,11 @@ ArmWriteHcr ( );
UINTN
+ArmReadHcr (
+ VOID
+ );
+
+UINTN
ArmReadCurrentEL (
VOID
);
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S index db21f73f0e..1a3023b794 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S @@ -54,6 +54,7 @@ GCC_ASM_EXPORT (ArmIsArchTimerImplemented) GCC_ASM_EXPORT (ArmReadIdPfr0)
GCC_ASM_EXPORT (ArmReadIdPfr1)
GCC_ASM_EXPORT (ArmWriteHcr)
+GCC_ASM_EXPORT (ArmReadHcr)
GCC_ASM_EXPORT (ArmReadCurrentEL)
.set CTRL_M_BIT, (1 << 0)
@@ -470,6 +471,11 @@ ASM_PFX(ArmWriteHcr): msr hcr_el2, x0 // Write the passed HCR value
ret
+// UINTN ArmReadHcr(VOID)
+ASM_PFX(ArmReadHcr):
+ mrs x0, hcr_el2
+ ret
+
// UINTN ArmReadCurrentEL(VOID)
ASM_PFX(ArmReadCurrentEL):
mrs x0, CurrentEL
|