This is a note to let you know that I've just added the patch titled
x86, cpufeature: Update CPU feature RDRND to RDRAND
to the 2.6.39-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-cpufeature-update-cpu-feature-rdrnd-to-rdrand.patch
and it can be found in the queue-2.6.39 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 7ccafc5f75c87853f3c49845d5a884f2376e03ce Mon Sep 17 00:00:00 2001
From: Kees Cook <[email protected]>
Date: Tue, 24 May 2011 16:29:26 -0700
Subject: x86, cpufeature: Update CPU feature RDRND to RDRAND
From: Kees Cook <[email protected]>
commit 7ccafc5f75c87853f3c49845d5a884f2376e03ce upstream.
The Intel manual changed the name of the CPUID bit to match the
instruction name. We should follow suit for sanity's sake. (See Intel SDM
Volume 2, Table 3-20 "Feature Information Returned in the ECX Register".)
[ hpa: we can only do this at this time because there are currently no CPUs
with this feature on the market, hence this is pre-hardware enabling.
However, Cc:'ing stable so that stable can present a consistent ABI. ]
Signed-off-by: Kees Cook <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: H. Peter Anvin <[email protected]>
Cc: Fenghua Yu <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
arch/x86/include/asm/cpufeature.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -125,7 +125,7 @@
#define X86_FEATURE_OSXSAVE (4*32+27) /* "" XSAVE enabled in the OS */
#define X86_FEATURE_AVX (4*32+28) /* Advanced Vector Extensions
*/
#define X86_FEATURE_F16C (4*32+29) /* 16-bit fp conversions */
-#define X86_FEATURE_RDRND (4*32+30) /* The RDRAND instruction */
+#define X86_FEATURE_RDRAND (4*32+30) /* The RDRAND instruction */
#define X86_FEATURE_HYPERVISOR (4*32+31) /* Running on a hypervisor */
/* VIA/Cyrix/Centaur-defined CPU features, CPUID level 0xC0000001, word 5 */
Patches currently in stable-queue which might be from [email protected]
are
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