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authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:29:07 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-28 05:29:07 -0700
commit8e6d539e0fd0c2124a20a207da70f2af7a9ae52c (patch)
tree73016c1bdb5005125cdb5d60d48f73ab4300be64 /arch/x86/Kconfig
parent8237eb946a1a23c600fb289cf8dd3b399b10604e (diff)
parent49d859d78c5aeb998b6936fcb5f288f78d713489 (diff)
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Merge branch 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-rdrand-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, random: Verify RDRAND functionality and allow it to be disabled x86, random: Architectural inlines to get random integers with RDRAND random: Add support for architectural random hooks Fix up trivial conflicts in drivers/char/random.c: the architectural random hooks touched "get_random_int()" that was simplified to use MD5 and not do the keyptr thing any more (see commit 6e5714eaf77d: "net: Compute protocol sequence numbers and fragment IDs using MD5").
Diffstat (limited to 'arch/x86/Kconfig')
-rw-r--r--arch/x86/Kconfig9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 16db864c42b..77f7a384c0b 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1454,6 +1454,15 @@ config ARCH_USES_PG_UNCACHED
def_bool y
depends on X86_PAT
+config ARCH_RANDOM
+ def_bool y
+ prompt "x86 architectural random number generator" if EXPERT
+ ---help---
+ Enable the x86 architectural RDRAND instruction
+ (Intel Bull Mountain technology) to generate random numbers.
+ If supported, this is a high bandwidth, cryptographically
+ secure hardware random number generator.
+
config EFI
bool "EFI runtime service support"
depends on ACPI