* [PATCH] Enable DRNG feature support for KVM
@ 2011-06-13 13:52 Yang, Wei Y
2011-06-13 13:57 ` Avi Kivity
0 siblings, 1 reply; 2+ messages in thread
From: Yang, Wei Y @ 2011-06-13 13:52 UTC (permalink / raw)
To: Avi Kivity; +Cc: kvm@vger.kernel.org
This patch exposes DRNG feature to KVM guests.
The RDRAND instruction can provide software with sequences of
random numbers generated from white noise.
Signed-off-by: Yang, Wei <wei.y.yang@intel.com>
---
arch/x86/kvm/x86.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ff4623b..4ddca60 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -2345,7 +2345,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
0 /* Reserved, DCA */ | F(XMM4_1) |
F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) |
0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) |
- F(F16C);
+ F(F16C) | F(RDRAND);
/* cpuid 0x80000001.ecx */
const u32 kvm_supported_word6_x86_features =
F(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ |
--
1.7.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] Enable DRNG feature support for KVM
2011-06-13 13:52 [PATCH] Enable DRNG feature support for KVM Yang, Wei Y
@ 2011-06-13 13:57 ` Avi Kivity
0 siblings, 0 replies; 2+ messages in thread
From: Avi Kivity @ 2011-06-13 13:57 UTC (permalink / raw)
To: Yang, Wei Y; +Cc: kvm@vger.kernel.org
On 06/13/2011 04:52 PM, Yang, Wei Y wrote:
> This patch exposes DRNG feature to KVM guests.
>
> The RDRAND instruction can provide software with sequences of
> random numbers generated from white noise.
>
> Signed-off-by: Yang, Wei<wei.y.yang@intel.com>
Applied, thanks.
--
error compiling committee.c: too many arguments to function
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2011-06-13 13:57 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-06-13 13:52 [PATCH] Enable DRNG feature support for KVM Yang, Wei Y
2011-06-13 13:57 ` Avi Kivity
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox