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| author | Jason Wang <jasowang@redhat.com> | 2015-09-15 14:41:59 +0800 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2015-10-01 15:06:31 +0200 |
| commit | e9ea5069d9e569c32ab913c39467df32e056b3a7 (patch) | |
| tree | 1e3e34946e2875564aa7a85a454f851d1575dac8 /virt | |
| parent | 931c33b178b091cced2a6b3f57f04655f8ff5207 (diff) | |
| download | lwn-e9ea5069d9e569c32ab913c39467df32e056b3a7.tar.gz lwn-e9ea5069d9e569c32ab913c39467df32e056b3a7.zip | |
kvm: add capability for any-length ioeventfds
Cc: Gleb Natapov <gleb@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'virt')
| -rw-r--r-- | virt/kvm/eventfd.c | 4 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 1 |
2 files changed, 2 insertions, 3 deletions
diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index 79db45336e3a..ac89299b8699 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -914,9 +914,7 @@ kvm_assign_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args) return -EINVAL; /* ioeventfd with no length can't be combined with DATAMATCH */ - if (!args->len && - args->flags & (KVM_IOEVENTFD_FLAG_PIO | - KVM_IOEVENTFD_FLAG_DATAMATCH)) + if (!args->len && (args->flags & KVM_IOEVENTFD_FLAG_DATAMATCH)) return -EINVAL; ret = kvm_assign_ioeventfd_idx(kvm, bus_idx, args); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 23116dcb2129..afd7ae6aec65 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2718,6 +2718,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg) case KVM_CAP_IRQFD: case KVM_CAP_IRQFD_RESAMPLE: #endif + case KVM_CAP_IOEVENTFD_ANY_LENGTH: case KVM_CAP_CHECK_EXTENSION_VM: return 1; #ifdef CONFIG_HAVE_KVM_IRQ_ROUTING |