diff options
Diffstat (limited to 'ArmPkg/Library/ArmLib/AArch64/AArch64Support.S')
| -rw-r--r-- | ArmPkg/Library/ArmLib/AArch64/AArch64Support.S | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S index 98eba3cac2..bdede48724 100644 --- a/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S +++ b/ArmPkg/Library/ArmLib/AArch64/AArch64Support.S @@ -313,8 +313,8 @@ ASM_PFX(ArmDisableBranchPrediction): ASM_PFX(AArch64AllDataCachesOperation):
// We can use regs 0-7 and 9-15 without having to save/restore.
-// Save our link register on the stack.
- str x30, [sp, #-0x10]!
+// Save our link register on the stack. - The stack must always be quad-word aligned
+ str x30, [sp, #-16]!
mov x1, x0 // Save Function call in x1
mrs x6, clidr_el1 // Read EL1 CLIDR
and x3, x6, #0x7000000 // Mask out all but Level of Coherency (LoC)
@@ -326,8 +326,8 @@ ASM_PFX(AArch64AllDataCachesOperation): ASM_PFX(AArch64PerformPoUDataCacheOperation):
// We can use regs 0-7 and 9-15 without having to save/restore.
-// Save our link register on the stack.
- str x30, [sp, #-0x10]!
+// Save our link register on the stack. - The stack must always be quad-word aligned
+ str x30, [sp, #-16]!
mov x1, x0 // Save Function call in x1
mrs x6, clidr_el1 // Read EL1 CLIDR
and x3, x6, #0x38000000 // Mask out all but Point of Unification (PoU)
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