Re: [PATCH 0/6] qemu: Fix cdrom as SCSI hostdev via -blockdev

Greetings All, > Sent: Thursday, October 15, 2020 at 6:25 PM > From: "Peter Krempa" <pkrempa(a)redhat.com&gt; > To: libvir-list(a)redhat.com > Cc: "daggs" <daggs(a)gmx.com&gt; > Subject: [PATCH 0/6] qemu: Fix cdrom as SCSI hostdev via -blockdev > > -drive detects whether a device is a cdrom automatically but we need to > use 'host_cdrom' when using blockdev explicitly. Fix the hostdev code > which was recently converted to -blockdev. > > Warning: > > I _don't_ have a box with a CDROM handy so this code is not tested in action! > > Peter Krempa (6): > qemuProcessCreatePretendCmd: Split up preparation and command building > qemu: hostdev: Prepare definition bits in qemuDomainPrepareHostdev > qemu: Prepare hostdev data which depends on the host state separately > qemuxml2argvmock: Remove mocking of 'virSCSIDeviceGetSgName' > qemu: Detect whether a SCSI hostdev is a cdrom > qemu: Add test cases for 'host_cdrom' blockdev backend via <disk> I've tested the bellow on libvirt 6.8.0, I wasn't able to get it to work, with the same entry as the example, e.g.: <hostdev mode='subsystem' type='scsi' managed='yes'> <source> <adapter name='cdrom'/>

<address bus='0' target='0' unit='0'/> </source> <readonly/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </hostdev> I get this error: error: XML error: SCSI host device doesn't support managed mode. if I mark the managed as no (like other pci pass-through devices I have in the vm), I get this error: error: internal error: Cannot parse adapter 'cdrom'