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| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2018-05-16 18:21:31 +0300 |
|---|---|---|
| committer | Radim Krčmář <rkrcmar@redhat.com> | 2018-05-26 16:35:35 +0300 |
| commit | c1aea9196ef4f6b64a8ef7e62a933f7e4164aed9 (patch) | |
| tree | 8e6c26810c55248da4999bf0d9a4133c6c17f2d6 /arch/x86/kvm/x86.c | |
| parent | c70126764bf09c5dd95527808b647ec347b8a822 (diff) | |
| download | linux-c1aea9196ef4f6b64a8ef7e62a933f7e4164aed9.tar.xz | |
KVM: x86: hyperv: declare KVM_CAP_HYPERV_TLBFLUSH capability
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>
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index b7bf9ac9b6d1..22bd20fedd6d 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2871,6 +2871,7 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) case KVM_CAP_HYPERV_SYNIC2: case KVM_CAP_HYPERV_VP_INDEX: case KVM_CAP_HYPERV_EVENTFD: + case KVM_CAP_HYPERV_TLBFLUSH: case KVM_CAP_PCI_SEGMENT: case KVM_CAP_DEBUGREGS: case KVM_CAP_X86_ROBUST_SINGLESTEP: |