diff options
| author |   Janakarajan Natarajan <Janakarajan.Natarajan@amd.com> | 2017-07-06 15:50:44 -0500 |
|---|---|---|
| committer |   Radim Krčmář <rkrcmar@redhat.com> | 2017-07-12 22:38:28 +0200 |
| commit | 8a77e90966e92759f94087f9845d413290be0d70 (patch) | |
| tree | 17bb4aae92b4ebf1aa096e25c7df0d25d70cc252 /arch/x86/include | |
| parent | KVM: SVM: handle singlestep exception when skipping emulated instructions (diff) | |
| download | linux-dev-8a77e90966e92759f94087f9845d413290be0d70.tar.xz linux-dev-8a77e90966e92759f94087f9845d413290be0d70.zip | |
KVM: SVM: Prepare for new bit definition in lbr_ctl
The lbr_ctl variable in the vmcb control area is used to enable or
disable Last Branch Record (LBR) virtualization. However, this is to be
done using only bit 0 of the variable. To correct this and to prepare
for a new feature, change the current usage to work only on a particular
bit.
Signed-off-by: Janakarajan Natarajan <Janakarajan.Natarajan@amd.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/svm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/svm.h b/arch/x86/include/asm/svm.h index 14824fc78f7e..d1163f64d732 100644 --- a/arch/x86/include/asm/svm.h +++ b/arch/x86/include/asm/svm.h @@ -119,6 +119,8 @@ struct __attribute__ ((__packed__)) vmcb_control_area { #define AVIC_ENABLE_SHIFT 31 #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT) +#define LBR_CTL_ENABLE_MASK BIT_ULL(0) + #define SVM_INTERRUPT_SHADOW_MASK 1 #define SVM_IOIO_STR_SHIFT 2 |