aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/boot
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/boot')
-rw-r--r--arch/x86/boot/compressed/head_64.S6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S
index f0c3a2f7e528..12915511be61 100644
--- a/arch/x86/boot/compressed/head_64.S
+++ b/arch/x86/boot/compressed/head_64.S
@@ -33,6 +33,7 @@
#include <asm/processor-flags.h>
#include <asm/asm-offsets.h>
#include <asm/bootparam.h>
+#include "pgtable.h"
/*
* Locally defined symbols should be marked hidden:
@@ -359,6 +360,8 @@ ENTRY(startup_64)
pushq %rax
lretq
lvl5:
+ /* Restore the stack, the 32-bit trampoline uses its own stack */
+ leaq boot_stack_end(%rbx), %rsp
/*
* cleanup_trampoline() would restore trampoline memory.
@@ -513,6 +516,9 @@ compatible_mode:
movl %eax, %ds
movl %eax, %ss
+ /* Set up new stack */
+ leal TRAMPOLINE_32BIT_STACK_END(%ecx), %esp
+
/* Disable paging */
movl %cr0, %eax
btrl $X86_CR0_PG_BIT, %eax