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KVM: x86: hyperv: declare KVM_CAP_HYPERV_TLBFLUSH capability

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We need a new capability to indicate support for the newly added
HvFlushVirtualAddress{List,Space}{,Ex} hypercalls. Upon seeing this
capability, userspace is supposed to announce PV TLB flush features
by setting the appropriate CPUID bits (if needed).

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
This commit is contained in:
Vitaly Kuznetsov
2018-05-16 17:21:31 +02:00
committed by Radim Krčmář
parent c70126764b
commit c1aea9196e
3 changed files with 11 additions and 0 deletions
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include/uapi/linux/kvm.h
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@@ -948,6 +948,7 @@ struct kvm_ppc_resize_hpt {
#define KVM_CAP_S390_BPB 152
#define KVM_CAP_GET_MSR_FEATURES 153
#define KVM_CAP_HYPERV_EVENTFD 154
#define KVM_CAP_HYPERV_TLBFLUSH 155
#ifdef KVM_CAP_IRQ_ROUTING