diff options
| author | Arvind Sankar <nivedita@alum.mit.edu> | 2020-01-07 14:44:35 -0500 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-02-12 11:11:06 +0100 |
| commit | 48bfdb9deffdc6b683feb25e15f4f26aac503501 (patch) | |
| tree | 27e0e0f9cfdae92ea40dddc7f7dcd63a7b8d63b5 /arch/x86/boot/compressed/head_64.S | |
| parent | bb6d3fb354c5ee8d6bde2d576eb7220ea09862b9 (diff) | |
x86/boot/compressed/64: Use LEA to initialize boot stack pointer
It's shorter, and it's what is used in every other place, so make it
consistent.
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200107194436.2166846-2-nivedita@alum.mit.edu
Diffstat (limited to 'arch/x86/boot/compressed/head_64.S')
| -rw-r--r-- | arch/x86/boot/compressed/head_64.S | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 1f1f6c8139b3..d1220de1de52 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -81,9 +81,7 @@ SYM_FUNC_START(startup_32) subl $1b, %ebp /* setup a stack and make sure cpu supports long mode. */ - movl $boot_stack_end, %eax - addl %ebp, %eax - movl %eax, %esp + leal boot_stack_end(%ebp), %esp call verify_cpu testl %eax, %eax |