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authorVitaly Kuznetsov <vkuznets@redhat.com>2018-05-16 17:21:31 +0200
committerRadim Krčmář <rkrcmar@redhat.com>2018-05-26 15:35:35 +0200
commitc1aea9196ef4f6b64a8ef7e62a933f7e4164aed9 (patch)
tree8e6c26810c55248da4999bf0d9a4133c6c17f2d6 /arch/x86
parentc70126764bf09c5dd95527808b647ec347b8a822 (diff)
downloadop-kernel-dev-c1aea9196ef4f6b64a8ef7e62a933f7e4164aed9.zip
op-kernel-dev-c1aea9196ef4f6b64a8ef7e62a933f7e4164aed9.tar.gz
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')
-rw-r--r--arch/x86/kvm/x86.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index b7bf9ac..22bd20f 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:
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