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qemu/hw/virtio
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Stefan Hajnoczi 366844f3d1 virtio-fs: fix MSI-X nvectors calculation 
The following MSI-X vectors are required:
 * VIRTIO Configuration Change
 * hiprio virtqueue
 * requests virtqueues

Fix the calculation to reserve enough MSI-X vectors.  Otherwise guest
drivers fall back to a sub-optional configuration where all virtqueues
share a single vector.

This change does not break live migration compatibility since
vhost-user-fs-pci devices are not migratable yet.

Reported-by: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20191209110759.35227-1-stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2019-12-13 10:53:57 +00:00
..
Kconfig virtio-pmem: add virtio device 2019-07-02 12:59:22 -04:00
Makefile.objs virtio: add vhost-user-fs-pci device 2019-10-05 17:43:55 -04:00
trace-events hw/virtio/virtio-mmio: Convert DPRINTF to trace and log 2019-05-22 15:33:20 +02:00
vhost-backend.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
vhost-scsi-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
vhost-stub.c vhost-user: simplify vhost_user_init/vhost_user_cleanup 2019-03-12 21:22:31 -04:00
vhost-user-blk-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
vhost-user-fs-pci.c virtio-fs: fix MSI-X nvectors calculation 2019-12-13 10:53:57 +00:00
vhost-user-fs.c vhost-user-fs: remove "vhostfd" property 2019-12-13 10:38:58 +00:00
vhost-user-input-pci.c Add vhost-user-input-pci 2019-05-10 14:52:47 +02:00
vhost-user-scsi-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
vhost-user.c Include qemu/main-loop.h less 2019-08-16 13:31:52 +02:00
vhost-vsock-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
vhost-vsock.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
vhost.c virtio/vhost: Use auto_rcu_read macros 2019-10-29 18:56:45 -04:00
virtio-9p-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-balloon-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-balloon.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-blk-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-bus.c virtio: notify virtqueue via host notifier when available 2019-11-06 06:35:00 -05:00
virtio-crypto-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-crypto.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-input-host-pci.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
virtio-input-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-mmio.c hw/virtio: Factorize virtio-mmio headers 2019-10-22 09:38:42 +02:00
virtio-net-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-pci.c virtio,vhost: fixes, features, cleanups. 2019-09-04 17:22:34 +01:00
virtio-pci.h virtio-pci: Add Function Level Reset support 2019-09-04 06:33:10 -04:00
virtio-pmem-pci.c virtio pmem: remove transitional names 2019-07-12 10:57:27 -04:00
virtio-pmem-pci.h virtio-pci: Proxy for virtio-pmem 2019-07-04 17:00:32 -04:00
virtio-pmem.c Include sysemu/hostmem.h less 2019-08-16 13:31:53 +02:00
virtio-rng-pci.c Include qemu/module.h where needed, drop it from qemu-common.h 2019-06-12 13:18:33 +02:00
virtio-rng.c virtio: Free rnd virqueue at unrealize() 2019-10-25 07:46:22 -04:00
virtio-scsi-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio-serial-pci.c Include hw/qdev-properties.h less 2019-08-16 13:31:53 +02:00
virtio.c virtio: notify virtqueue via host notifier when available 2019-11-06 06:35:00 -05:00