summaryrefslogtreecommitdiff
path: root/virt
diff options
context:
space:
mode:
authorPaolo Bonzini <pbonzini@redhat.com>2015-03-05 11:54:46 +0100
committerMarcelo Tosatti <mtosatti@redhat.com>2015-03-10 21:18:59 -0300
commitdc9be0fac70a2ad86e31a81372bb0bdfb6945353 (patch)
treed515c5004b6f58412e3dac08729afa614aca0b9b /virt
parentaffb8172de395a6e1db52ed9790ca0456d8c29a9 (diff)
downloadkernel-dc9be0fac70a2ad86e31a81372bb0bdfb6945353.tar.gz
kvm: move advertising of KVM_CAP_IRQFD to common code
POWER supports irqfds but forgot to advertise them. Some userspace does not check for the capability, but others check it---thus they work on x86 and s390 but not POWER. To avoid that other architectures in the future make the same mistake, let common code handle KVM_CAP_IRQFD the same way as KVM_CAP_IRQFD_RESAMPLE. Reported-and-tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com> Cc: stable@vger.kernel.org Fixes: 297e21053a52f060944e9f0de4c64fad9bcd72fc Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Diffstat (limited to 'virt')
-rw-r--r--virt/kvm/kvm_main.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index a1093700f3a4..a2214d9609bd 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -2492,6 +2492,7 @@ static long kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
case KVM_CAP_SIGNAL_MSI:
#endif
#ifdef CONFIG_HAVE_KVM_IRQFD
+ case KVM_CAP_IRQFD:
case KVM_CAP_IRQFD_RESAMPLE:
#endif
case KVM_CAP_CHECK_EXTENSION_VM: