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qemu/include/hw/virtio
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David Hildenbrand 92a8ee1b59 virtio-mem: Prepare for device unplug support 
In many cases, blindly unplugging a virtio-mem device is problematic. We
can only safely remove a device once:
* The guest is not expecting to be able to read unplugged memory
  (unplugged-inaccessible == on)
* The virtio-mem device does not have memory plugged (size == 0)
* The virtio-mem device does not have outstanding requests to the VM to
  plug memory (requested-size == 0)

So let's add a callback to the virtio-mem device class to check for that.
We'll wire-up virtio-mem-pci next.

Message-ID: <20230711153445.514112-7-david@redhat.com>
Tested-by: Mario Casquero <mcasquer@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
2023-07-12 09:27:31 +02:00
..
vdpa-dev.h vdpa: add vdpa-dev support 2022-12-21 06:35:28 -05:00
vhost-backend.h vhost-user: fully use new backend/frontend naming 2023-06-26 09:50:00 -04:00
vhost-scsi-common.h vhost-scsi: support inflight io track 2020-09-30 19:09:20 +02:00
vhost-scsi.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
vhost-user-blk.h vhost-user-blk: make 'config_wce' part of 'host_features' 2022-10-07 09:41:51 -04:00
vhost-user-fs.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
vhost-user-gpio.h vhost-user-gpio: Configure vhost_dev when connecting 2023-03-02 03:10:47 -05:00
vhost-user-i2c.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
vhost-user-rng.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
vhost-user-scmi.h hw/virtio: Add boilerplate for vhost-user-scmi device 2023-07-10 16:17:07 -04:00
vhost-user-scsi.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
vhost-user-vsock.h Clean up ill-advised or unusual header guards 2022-05-11 16:50:01 +02:00
vhost-user.h hw/virtio: generalise CHR_EVENT_CLOSED handling 2022-12-01 02:30:13 -05:00
vhost-vdpa.h vhost-vdpa: Add support for vIOMMU. 2023-05-19 10:30:46 -04:00
vhost-vsock-common.h virtio: drop name parameter for virtio_init() 2022-05-16 04:38:40 -04:00
vhost-vsock.h vhost-vsock: handle common features in vhost-vsock-common 2021-10-05 17:30:57 -04:00
vhost.h vhost: register and change IOMMU flag depending on Device-TLB state 2023-07-10 15:07:50 -04:00
virtio-access.h Replace TARGET_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
virtio-balloon.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio-blk-common.h virtio-blk: move config size params to virtio-blk-common 2022-10-07 09:41:51 -04:00
virtio-blk.h virtio-blk: simplify virtio_blk_dma_restart_cb() 2023-01-23 15:01:23 -05:00
virtio-bus.h virtio-bus: introduce iommu_enabled() 2021-09-04 16:35:17 -04:00
virtio-crypto.h crypto: Introduce RSA algorithm 2022-06-16 12:54:58 -04:00
virtio-gpu-bswap.h Replace config-time define HOST_WORDS_BIGENDIAN 2022-04-06 10:50:37 +02:00
virtio-gpu-pci.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio-gpu-pixman.h virtio-gpu: add a pixman helper header 2019-05-29 06:29:07 +02:00
virtio-gpu.h virtio-gpu: refactor generate_edid function to virtio_gpu_base 2023-07-10 16:17:07 -04:00
virtio-input.h virtio-input: add a virtio-mulitouch device 2023-05-28 13:08:25 +04:00
virtio-iommu.h virtio-iommu: Fix 64kB host page size VFIO device assignment 2023-07-10 18:59:32 -04:00
virtio-md-pci.h virtio-md-pci: Support unplug requests for compatible devices 2023-07-12 09:27:30 +02:00
virtio-mem.h virtio-mem: Prepare for device unplug support 2023-07-12 09:27:31 +02:00
virtio-mmio.h include: Include headers where needed 2023-01-08 01:54:22 -05:00
virtio-net.h virtio-net: expose virtio_net_supported_guest_offloads() 2023-06-26 09:50:00 -04:00
virtio-pci.h virtio-pci: add support for configure interrupt 2023-01-08 01:54:22 -05:00
virtio-pmem.h qapi: Restrict device memory commands to machine code 2020-09-29 15:41:36 +02:00
virtio-rng.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio-scsi.h virtio-scsi: reset SCSI devices from main loop thread 2023-02-23 19:49:35 +01:00
virtio-serial.h Use OBJECT_DECLARE_SIMPLE_TYPE when possible 2020-09-18 14:12:32 -04:00
virtio.h include/hw/virtio: document some more usage of notifiers 2023-07-10 18:59:32 -04:00