What were you trying to do that didn't work?

Start a guest with vfio pci device, then found error log printed

Please provide the package NVR for which the bug is seen:

On rhel 10.2
# rpm -q libvirt qemu-kvm
libvirt-11.10.0-10.el10.x86_64
qemu-kvm-10.1.0-13.el10.x86_64

On rhel9.8
# rpm -q libvirt qemu-kvm
libvirt-11.10.0-11.el9_8.x86_64
qemu-kvm-10.1.0-15.el9.x86_64

How reproducible is this bug?:100%

Steps to reproduce

1. Define a guest with below vfio pci devices:
<hostdev mode='subsystem' type='pci' managed='yes'>
      <driver iommufd='yes'/>
      <source>
        <address domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
      </source>
    </hostdev>
     <hostdev mode='subsystem' type='pci' managed='yes'>
            <driver iommufd='yes'/>
      <source>
        <address domain='0x0000' bus='0x01' slot='0x00' function='0x1'/>
      </source>
    </hostdev>

2. Start the guest

# virsh start vm2
Domain 'vm2' started

3. Check the libvirt log found below error:
2026-03-09 13:09:47.838+0000: 49275: error : virProcessRunInFork:1396 : internal error: child reported (status=125): unable to set security context 'system_u:object_r:svirt_image_t:s0:c141,c617' on '/dev/vfio/devices/vfio0': No such file or directory
2026-03-09 13:09:47.838+0000: 49275: error : virProcessRunInFork:1400 : unable to set security context 'system_u:object_r:svirt_image_t:s0:c141,c617' on '/dev/vfio/devices/vfio0': No such file or directory
2026-03-09 13:09:47.839+0000: 49275: info : virObjectUnref:378 : OBJECT_UNREF: obj=0x7fc7f400e4b0
2026-03-09 13:09:47.841+0000: 49275: error : virProcessRunInFork:1396 : internal error: child reported (status=125): unable to stat: /dev/vfio/devices/vfio0: No such file or directory
2026-03-09 13:09:47.841+0000: 49275: error : virProcessRunInFork:1400 : unable to stat: /dev/vfio/devices/vfio0: No such file or directory

Expected results

No error log printed in log

Actual results

error log printed