From: Joerg Roedel <joerg.roe...@amd.com> This patch enables setting of efer bit 13 which is allowed in all SVM capable processors. This is necessary for the SLES11 version of Xen 4.0 to boot with nested svm.
Signed-off-by: Joerg Roedel <joerg.roe...@amd.com> Signed-off-by: Avi Kivity <a...@redhat.com> diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index f932485..4eb2f72 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -20,6 +20,7 @@ #define _EFER_LMA 10 /* Long mode active (read-only) */ #define _EFER_NX 11 /* No execute enable */ #define _EFER_SVME 12 /* Enable virtualization */ +#define _EFER_LMSLE 13 /* Long Mode Segment Limit Enable */ #define _EFER_FFXSR 14 /* Enable Fast FXSAVE/FXRSTOR */ #define EFER_SCE (1<<_EFER_SCE) @@ -27,6 +28,7 @@ #define EFER_LMA (1<<_EFER_LMA) #define EFER_NX (1<<_EFER_NX) #define EFER_SVME (1<<_EFER_SVME) +#define EFER_LMSLE (1<<_EFER_LMSLE) #define EFER_FFXSR (1<<_EFER_FFXSR) /* Intel MSRs. Some also available on other CPUs */ diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index f8d2542..e707f86 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -610,7 +610,7 @@ static __init int svm_hardware_setup(void) if (nested) { printk(KERN_INFO "kvm: Nested Virtualization enabled\n"); - kvm_enable_efer_bits(EFER_SVME); + kvm_enable_efer_bits(EFER_SVME | EFER_LMSLE); } for_each_possible_cpu(cpu) { -- To unsubscribe from this list: send the line "unsubscribe kvm-commits" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html