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04ceb61a40
qemu/hw/virtio
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Kevin Wolf 04ceb61a40 virtio: Fail if iommu_platform is requested, but unsupported 
Commit 2943b53f6 (' virtio: force VIRTIO_F_IOMMU_PLATFORM') made sure
that vhost can't just reject VIRTIO_F_IOMMU_PLATFORM when it was
requested. However, just adding it back to the negotiated flags isn't
right either because it promises support to the guest that the device
actually doesn't support. One example of a vhost-user device that
doesn't have support for the flag is the vhost-user-blk export of QEMU.

Instead of successfully creating a device that doesn't work, just fail
to plug the device when it doesn't support the feature, but it was
requested. This results in much clearer error messages.

Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935019
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Message-Id: <20210429171316.162022-6-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-05-18 12:57:38 +02:00
..
Kconfig virtio-mem: Paravirtualized memory hot(un)plug 2020-07-03 07:57:04 -04:00
meson.build meson: convert hw/virtio 2020-08-21 06:30:26 -04:00
trace-events virtio-pmem: add trace events 2021-02-05 08:52:58 -05:00
trace.h trace: switch position of headers to what Meson requires 2020-08-21 06:18:24 -04:00
vhost-backend.c vhost: Check for valid vdev in vhost_backend_handle_iotlb_msg 2021-02-05 08:52:59 -05:00
vhost-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
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 Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-fs-pci.c vhost-user-fs: add the "bootindex" property 2021-01-13 09:06:37 -05:00
vhost-user-fs.c vhost-user-fs: fix features handling 2021-04-13 16:13:41 +01:00
vhost-user-input-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
vhost-user-vsock-pci.c vhost-user-vsock-pci: force virtio version 1 2020-09-29 02:15:24 -04:00
vhost-user-vsock.c qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
vhost-user.c vhost-user: Monitor slave channel in vhost_user_read() 2021-03-22 10:17:53 -04:00
vhost-vdpa.c vhost-vdpa: Make vhost_vdpa_get_device_id() static 2021-05-14 10:26:18 -04:00
vhost-vsock-common.c Remove superfluous timer_del() calls 2021-01-08 15:13:38 +00:00
vhost-vsock-pci.c vhost-vsock-pci: force virtio version 1 2020-09-29 02:15:24 -04:00
vhost-vsock.c vhost-vsock: set vhostfd to non-blocking mode 2020-10-30 04:29:13 -04:00
vhost.c Do not include exec/address-spaces.h if it's not really necessary 2021-05-02 17:24:51 +02:00
virtio-9p-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-balloon-pci.c hw/virtio/virtio-balloon: Remove the "class" property 2021-02-05 08:52:59 -05:00
virtio-balloon.c migrate/ram: remove "ram_bulk_stage" and "fpo_enabled" 2021-05-13 18:21:13 +01:00
virtio-blk-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-bus.c virtio: Fail if iommu_platform is requested, but unsupported 2021-05-18 12:57:38 +02:00
virtio-crypto-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-crypto.c virtio-crypto: don't modify elem->in/out_sg 2020-09-23 13:41:58 +01:00
virtio-input-host-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-input-pci.c Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio-iommu-pci.c qdev: Move softmmu properties to qdev-properties-system.h 2020-12-18 15:20:17 -05:00
virtio-iommu.c virtio-iommu: Handle non power of 2 range invalidations 2021-03-12 12:40:10 +00:00
virtio-mem-pci.c virito-mem: Implement get_min_alignment() 2020-11-03 07:19:26 -05:00
virtio-mem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-mem.c migrate/ram: remove "ram_bulk_stage" and "fpo_enabled" 2021-05-13 18:21:13 +01:00
virtio-mmio.c hw/virtio: enable ioeventfd configuring for mmio 2021-05-14 10:26:18 -04:00
virtio-net-pci.c virtio-net: calculating proper msix vectors on init 2021-03-15 16:41:22 +08:00
virtio-pci.c virtio-pci: compat page aligned ATS 2021-04-06 07:11:36 -04:00
virtio-pci.h virtio-pci: compat page aligned ATS 2021-04-06 07:11:36 -04:00
virtio-pmem-pci.c virtio-pmem-pci: force virtio version 1 2020-09-29 02:14:30 -04:00
virtio-pmem-pci.h Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-pmem.c virtio-pmem: fix virtio_pmem_resp assign problem 2021-03-22 10:17:53 -04:00
virtio-rng-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-rng.c sysemu: Let VMChangeStateHandler take boolean 'running' argument 2021-03-09 23:13:57 +01:00
virtio-scsi-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio-serial-pci.c Use DECLARE_*CHECKER* macros 2020-09-09 09:27:09 -04:00
virtio.c pc,pci,virtio: bugfixes, improvements 2021-05-16 17:22:46 +01:00