projects
/
platform
/
adaptation
/
renesas_rcar
/
renesas_kernel.git
/ commitdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
| commitdiff |
tree
raw
|
patch
| inline |
side by side
(parent:
0a13773
)
x86, boot: zero EFLAGS on 32 bits
author
H. Peter Anvin
<hpa@zytor.com>
Thu, 7 May 2009 00:56:51 +0000
(17:56 -0700)
committer
H. Peter Anvin
<hpa@zytor.com>
Sat, 9 May 2009 00:19:01 +0000
(17:19 -0700)
The 64-bit code already clears EFLAGS as soon as it has a stack. This
seems like a reasonable precaution, so do it on 32 bits as well.
[ Impact: extra paranoia ]
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
arch/x86/boot/compressed/head_32.S
patch
|
blob
|
history
diff --git
a/arch/x86/boot/compressed/head_32.S
b/arch/x86/boot/compressed/head_32.S
index
d7245cf
..
d02a4f0
100644
(file)
--- a/
arch/x86/boot/compressed/head_32.S
+++ b/
arch/x86/boot/compressed/head_32.S
@@
-91,6
+91,10
@@
ENTRY(startup_32)
/* Set up the stack */
leal boot_stack_end(%ebx), %esp
+ /* Zero EFLAGS */
+ pushl $0
+ popfl
+
/*
* Copy the compressed kernel to the end of our buffer
* where decompression in place becomes safe.