Re: [PATCH 5/5] x86, head_32: Remove an old gcc2 fix

From: Borislav Petkov
Date: Sat Feb 09 2013 - 16:24:00 EST

On Sat, Feb 09, 2013 at 12:52:01PM -0800, H. Peter Anvin wrote:
> However... DF should have been cleared long before this...

How about we do this at the beginning of default_entry where we clear

diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S
index fc56613224c3..8b2a8a824fc6 100644
--- a/arch/x86/kernel/head_32.S
+++ b/arch/x86/kernel/head_32.S
@@ -322,10 +322,11 @@ default_entry:
* debugger if this code is traced. Best to initialize before switching to
* protected mode.
pushl $0

+ cld # GCC wants DF=0 at all times
* New page tables may be in 4Mbyte page mode and may be using the global pages.


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