Re: [libvirt] [PATCH v2] Ignore virtio-mmio disks in qemuAssignDevicePCISlots()

Fixes the following error when attempting to add a disk with bus='virtio' to a machine which actually supports virtio-mmio (caught with ARM virt): virtio disk cannot have an address of type 'virtio-mmio' The problem has been likely introduced by e8d55172544c1fafe31a9e09346bdebca4f0d6f9. Before that qemuAssignDevicePCISlots() was never called for ARM "virt" machine. Signed-off-by: Pavel Fedin <p.fedin(a)samsung.com&gt; --- v1 => v2 - Added check for QEMU_CAPS_DEVICE_VIRTIO_MMIO, this leaves the error message for machines which actually do not support virtio-mmio. In this case the user may still attempt to add such a disk manually. --- src/qemu/qemu_command.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index ec5e3d4..db21ee9 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -2598,6 +2598,12 @@ qemuAssignDevicePCISlots(virDomainDefPtr def, VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) continue; + /* Also ignore virtio-mmio disks if our machine allows them */ + if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VIRTIO_MMIO) && + def->disks[i]->info.type == + VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_MMIO) + continue; +

if (def->disks[i]->info.type != VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("virtio disk cannot have an address of type '%s'"), -- 1.9.5.msysgit.0