[PATCH 21/22] KVM: SVM: Report Nested Paging support to userspace
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From: Joerg Roedel on 27 Apr 2010 06:40 This patch implements the reporting of the nested paging feature support to userspace. Signed-off-by: Joerg Roedel <joerg.roedel(a)amd.com> --- arch/x86/kvm/svm.c | 7 ++++++- 1 files changed, 6 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 266b1d4..6d6b300 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3233,7 +3233,12 @@ static void svm_set_supported_cpuid(u32 func, struct kvm_cpuid_entry2 *entry) entry->ebx = 8; /* Lets support 8 ASIDs in case we add proper ASID emulation to nested SVM */ entry->ecx = 0; /* Reserved */ - entry->edx = 0; /* Do not support any additional features */ + entry->edx = 0; /* Per default do not support any + additional features */ + + /* Support NPT for the guest if enabled */ + if (npt_enabled) + entry->edx = SVM_FEATURE_NPT; break; } -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo(a)vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ |