When switching to the DXE phase stack, set the frame pointer to zero so that code walking the stack frame will not try to access stack frames\ belonging to the old stack.
Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <[email protected]> --- MdePkg/Library/BaseLib/AArch64/SwitchStack.S | 1 + 1 file changed, 1 insertion(+) diff --git a/MdePkg/Library/BaseLib/AArch64/SwitchStack.S b/MdePkg/Library/BaseLib/AArch64/SwitchStack.S index 2bce9c998f4f..c3ac8d7e4dfe 100644 --- a/MdePkg/Library/BaseLib/AArch64/SwitchStack.S +++ b/MdePkg/Library/BaseLib/AArch64/SwitchStack.S @@ -40,6 +40,7 @@ InternalSwitchStackAsm ( ); **/ ASM_PFX(InternalSwitchStackAsm): + mov x29, #0 mov x30, x0 mov sp, x3 mov x0, x1 -- 2.7.4 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
