[kvm-devel] [PATCH 2/8] SVM: add detection of Nested Paging feature

2008-01-25 Thread Joerg Roedel 
Let SVM detect if the Nested Paging feature is available on the hardware.
Disable it to keep this patch series bisectable.

Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
---
 arch/x86/kvm/svm.c |8 
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index 0c58527..49bb57a 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -47,6 +47,8 @@ MODULE_LICENSE("GPL");
 #define SVM_FEATURE_LBRV (1 << 1)
 #define SVM_DEATURE_SVML (1 << 2)
 
+static bool npt_enabled = false;
+
 static void kvm_reput_irq(struct vcpu_svm *svm);
 
 static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
@@ -410,6 +412,12 @@ static __init int svm_hardware_setup(void)
 
svm_features = cpuid_edx(SVM_CPUID_FUNC);
 
+   if (!svm_has(SVM_FEATURE_NPT))
+   npt_enabled = false;
+
+   if (npt_enabled)
+   printk(KERN_INFO "kvm: Nested Paging enabled\n");
+
return 0;
 
 err_2:
-- 
1.5.3.7




-
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[kvm-devel] [PATCH 2/8] SVM: add detection of Nested Paging feature

2008-02-07 Thread Joerg Roedel 
Let SVM detect if the Nested Paging feature is available on the hardware.
Disable it to keep this patch series bisectable.

Signed-off-by: Joerg Roedel <[EMAIL PROTECTED]>
---
 arch/x86/kvm/svm.c |8 
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index c0aaa85..b037b27 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -47,6 +47,8 @@ MODULE_LICENSE("GPL");
 #define SVM_FEATURE_LBRV (1 << 1)
 #define SVM_DEATURE_SVML (1 << 2)
 
+static bool npt_enabled = false;
+
 static void kvm_reput_irq(struct vcpu_svm *svm);
 
 static inline struct vcpu_svm *to_svm(struct kvm_vcpu *vcpu)
@@ -410,6 +412,12 @@ static __init int svm_hardware_setup(void)
 
svm_features = cpuid_edx(SVM_CPUID_FUNC);
 
+   if (!svm_has(SVM_FEATURE_NPT))
+   npt_enabled = false;
+
+   if (npt_enabled)
+   printk(KERN_INFO "kvm: Nested Paging enabled\n");
+
return 0;
 
 err_2:
-- 
1.5.3.7




-
This SF.net email is sponsored by: Microsoft
Defy all challenges. Microsoft(R) Visual Studio 2008.
http://clk.atdmt.com/MRT/go/vse012070mrt/direct/01/
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