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| author | Stefan Hajnoczi <stefanha@redhat.com> | 2016-11-21 11:09:58 +0000 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2016-11-21 11:09:58 +0000 |
| commit | c36ed06e9159fa484b711dfdd27ec64d7ac3d17a (patch) | |
| tree | e87010bcb634dd0ed1f2abb8123e044d308e4a71 /hw/virtio/vhost.c | |
| parent | d93b1fb009b64333d324a2fe76fe805f2ac2cda4 (diff) | |
| parent | 4b5b47abbf23246bd8dde4c6faaed8b7249d8654 (diff) | |
| download | focaccia-qemu-c36ed06e9159fa484b711dfdd27ec64d7ac3d17a.tar.gz focaccia-qemu-c36ed06e9159fa484b711dfdd27ec64d7ac3d17a.zip | |
Merge remote-tracking branch 'mst/tags/for_upstream' into staging
virtio, vhost, pc: fixes Most notably this fixes a regression with vhost introduced by the pull before last. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Fri 18 Nov 2016 03:51:55 PM GMT # gpg: using RSA key 0x281F0DB8D28D5469 # gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" # gpg: aka "Michael S. Tsirkin <mst@redhat.com>" # Primary key fingerprint: 0270 606B 6F3C DF3D 0B17 0970 C350 3912 AFBE 8E67 # Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA 8A0D 281F 0DB8 D28D 5469 * mst/tags/for_upstream: acpi: Use apic_id_limit when calculating legacy ACPI table size ipmi: fix qemu crash while migrating with ipmi ivshmem: Fix 64 bit memory bar configuration virtio: set ISR on dataplane notifications virtio: access ISR atomically virtio: introduce grab/release_ioeventfd to fix vhost virtio-crypto: fix virtio_queue_set_notification() race Message-id: 1479484366-7977-1-git-send-email-mst@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'hw/virtio/vhost.c')
| -rw-r--r-- | hw/virtio/vhost.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/hw/virtio/vhost.c b/hw/virtio/vhost.c index 30aee88a3e..f7f70237db 100644 --- a/hw/virtio/vhost.c +++ b/hw/virtio/vhost.c @@ -1214,17 +1214,17 @@ void vhost_dev_cleanup(struct vhost_dev *hdev) int vhost_dev_enable_notifiers(struct vhost_dev *hdev, VirtIODevice *vdev) { BusState *qbus = BUS(qdev_get_parent_bus(DEVICE(vdev))); - VirtioBusState *vbus = VIRTIO_BUS(qbus); - VirtioBusClass *k = VIRTIO_BUS_GET_CLASS(vbus); int i, r, e; - if (!k->ioeventfd_assign) { + /* We will pass the notifiers to the kernel, make sure that QEMU + * doesn't interfere. + */ + r = virtio_device_grab_ioeventfd(vdev); + if (r < 0) { error_report("binding does not support host notifiers"); - r = -ENOSYS; goto fail; } - virtio_device_stop_ioeventfd(vdev); for (i = 0; i < hdev->nvqs; ++i) { r = virtio_bus_set_host_notifier(VIRTIO_BUS(qbus), hdev->vq_index + i, true); @@ -1244,7 +1244,7 @@ fail_vq: } assert (e >= 0); } - virtio_device_start_ioeventfd(vdev); + virtio_device_release_ioeventfd(vdev); fail: return r; } @@ -1267,7 +1267,7 @@ void vhost_dev_disable_notifiers(struct vhost_dev *hdev, VirtIODevice *vdev) } assert (r >= 0); } - virtio_device_start_ioeventfd(vdev); + virtio_device_release_ioeventfd(vdev); } /* Test and clear event pending status. |