diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2018-02-21 13:39:51 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-08-15 18:14:52 +0200 |
| commit | 62d88fc0fb6bc888d30a5bd074afd5a0ae59a1af (patch) | |
| tree | 21b22a63f6b86a4ad321bd0eadd1a95f0fa5f47f /include | |
| parent | d9f378f64c0ae3d76c1828742557c6c0ccc9e977 (diff) | |
KVM: x86: Add a framework for supporting MSR-based features
commit 801e459a6f3a63af9d447e6249088c76ae16efc4 upstream
Provide a new KVM capability that allows bits within MSRs to be recognized
as features. Two new ioctls are added to the /dev/kvm ioctl routine to
retrieve the list of these MSRs and then retrieve their values. A kvm_x86_ops
callback is used to determine support for the listed MSR-based features.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[Tweaked documentation. - Radim]
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/uapi/linux/kvm.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/uapi/linux/kvm.h b/include/uapi/linux/kvm.h index 05b9bb63dbec..a0a365cbf3c9 100644 --- a/include/uapi/linux/kvm.h +++ b/include/uapi/linux/kvm.h @@ -717,6 +717,7 @@ struct kvm_ppc_smmu_info { #define KVM_TRACE_PAUSE __KVM_DEPRECATED_MAIN_0x07 #define KVM_TRACE_DISABLE __KVM_DEPRECATED_MAIN_0x08 #define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2) +#define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list) /* * Extension capability list. @@ -871,6 +872,7 @@ struct kvm_ppc_smmu_info { #define KVM_CAP_MSI_DEVID 131 #define KVM_CAP_PPC_HTM 132 #define KVM_CAP_S390_BPB 152 +#define KVM_CAP_GET_MSR_FEATURES 153 #ifdef KVM_CAP_IRQ_ROUTING |