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virtio,pci,pc: fixes, features

Browse source 
vhost-scsi now supports scsi hotplug
 cxl gained a bag of new operations, motably media operations
 virtio-net now supports SR-IOV emulation
 pci-testdev now supports backing memory bar with host memory
 amd iommu now supports migration
 
 fixes all over the place
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu into staging

virtio,pci,pc: fixes, features

vhost-scsi now supports scsi hotplug
cxl gained a bag of new operations, motably media operations
virtio-net now supports SR-IOV emulation
pci-testdev now supports backing memory bar with host memory
amd iommu now supports migration

fixes all over the place

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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# gpg: Signature made Wed 14 May 2025 07:49:25 EDT
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
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* tag 'for_upstream' of https://git.kernel.org/pub/scm/virt/kvm/mst/qemu: (27 commits)
  hw/i386/amd_iommu: Allow migration when explicitly create the AMDVI-PCI device
  hw/i386/amd_iommu: Isolate AMDVI-PCI from amd-iommu device to allow full control over the PCI device creation
  intel_iommu: Take locks when looking for and creating address spaces
  intel_iommu: Use BQL_LOCK_GUARD to manage cleanup automatically
  virtio: Move virtio_reset()
  virtio: Call set_features during reset
  vhost-scsi: support VIRTIO_SCSI_F_HOTPLUG
  vhost-user: return failure if backend crash when live migration
  vhost: return failure if stop virtqueue failed in vhost_dev_stop
  system/runstate: add VM state change cb with return value
  pci-testdev.c: Add membar-backed option for backing membar
  pcie_sriov: Make a PCI device with user-created VF ARI-capable
  docs: Document composable SR-IOV device
  virtio-net: Implement SR-IOV VF
  virtio-pci: Implement SR-IOV PF
  pcie_sriov: Allow user to create SR-IOV device
  pcie_sriov: Check PCI Express for SR-IOV PF
  pcie_sriov: Ensure PF and VF are mutually exclusive
  hw/pci: Fix SR-IOV VF number calculation
  hw/pci: Do not add ROM BAR for SR-IOV VF
  ...

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2025-05-15 13:41:56 -04:00
commit 2159606408
55 changed files with 1442 additions and 361 deletions
Download patch file Download diff file Expand all files Collapse all files

18
hw/core/vm-change-state-handler.c
View file

@ -40,6 +40,7 @@ static int qdev_get_dev_tree_depth(DeviceState *dev)
* qdev_add_vm_change_state_handler:
* @dev: the device that owns this handler
* @cb: the callback function to be invoked
* @cb_ret: the callback function with return value to be invoked
* @opaque: user data passed to the callback function
*
* This function works like qemu_add_vm_change_state_handler() except callbacks
@ -50,25 +51,30 @@ static int qdev_get_dev_tree_depth(DeviceState *dev)
* controller's callback is invoked before the children on its bus when the VM
* starts running. The order is reversed when the VM stops running.
*
* Note that the parameter `cb` and `cb_ret` are mutually exclusive.
*
* Returns: an entry to be freed with qemu_del_vm_change_state_handler()
*/
VMChangeStateEntry *qdev_add_vm_change_state_handler(DeviceState *dev,
VMChangeStateHandler *cb,
VMChangeStateHandlerWithRet *cb_ret,
void *opaque)
{
return qdev_add_vm_change_state_handler_full(dev, cb, NULL, opaque);
assert(!cb || !cb_ret);
return qdev_add_vm_change_state_handler_full(dev, cb, NULL, cb_ret, opaque);
}
/*
* Exactly like qdev_add_vm_change_state_handler() but passes a prepare_cb
* argument too.
* and the cb_ret arguments too.
*/
VMChangeStateEntry *qdev_add_vm_change_state_handler_full(
DeviceState *dev, VMChangeStateHandler *cb,
VMChangeStateHandler *prepare_cb, void *opaque)
DeviceState *dev, VMChangeStateHandler *cb, VMChangeStateHandler *prepare_cb,
VMChangeStateHandlerWithRet *cb_ret, void *opaque)
{
int depth = qdev_get_dev_tree_depth(dev);
return qemu_add_vm_change_state_handler_prio_full(cb, prepare_cb, opaque,
depth);
assert(!cb || !cb_ret);
return qemu_add_vm_change_state_handler_prio_full(cb, prepare_cb, cb_ret,
opaque, depth);
}