linux-kernel - [PATCH] kvm-amd: Auto-load on CPUs with SVM.

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Message-ID: <20120328183228.GA24889@leaf>
Date:	Wed, 28 Mar 2012 11:32:28 -0700
From:	Josh Triplett <josh@...htriplett.org>
To:	Avi Kivity <avi@...hat.com>
Cc:	Marcelo Tosatti <mtosatti@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
	Kay Sievers <kay.sievers@...y.org>
Subject: [PATCH] kvm-amd: Auto-load on CPUs with SVM.

Enable x86 feature-based autoloading for the kvm-amd module on CPUs
with X86_FEATURE_SVM.

Signed-off-by: Josh Triplett <josh@...htriplett.org>
---

On Wed, Mar 28, 2012 at 01:26:01PM +0200, Avi Kivity wrote:
> On 03/21/2012 08:33 AM, Josh Triplett wrote:
> > Enable x86 feature-based autoloading for the kvm-intel module on CPUs
> > with X86_FEATURE_VMX.
> 
> Thanks, applied.

As promised, the corresponding patch for kvm-amd.

 arch/x86/kvm/svm.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e385214..cd95ea7 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -22,6 +22,7 @@
 #include "x86.h"
 
 #include <linux/module.h>
+#include <linux/mod_devicetable.h>
 #include <linux/kernel.h>
 #include <linux/vmalloc.h>
 #include <linux/highmem.h>
@@ -42,6 +43,12 @@
 MODULE_AUTHOR("Qumranet");
 MODULE_LICENSE("GPL");
 
+static const struct x86_cpu_id svm_cpu_id[] = {
+	X86_FEATURE_MATCH(X86_FEATURE_SVM),
+	{}
+};
+MODULE_DEVICE_TABLE(x86cpu, svm_cpu_id);
+
 #define IOPM_ALLOC_ORDER 2
 #define MSRPM_ALLOC_ORDER 1
 
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