On Fri, Dec 04, 2015 at 10:42:30AM +0800, Tashi Lu wrote:
> Hi everyone,
>
> I incidentally configured two IDE controller for my machine-1.2 VM(it
> might be virsh attach-disk to blame), and I got the error message
> "Only a single IDE controller is unsupported...". I can't understand
> this error message, I think it means I HAVE to configure two or more
> IDE controllers until I looked it up in the source.
>
> At libvirt-1.2.22/src/qemu/qemu_command.c:
>
> 4916 case VIR_DOMAIN_CONTROLLER_TYPE_IDE:
> 4917 /* Since we currently only support the integrated IDE controller
> 4918 * on 440fx, if we ever get to here, it's because some other
> 4919 * machinetype had an IDE controller specified, or a 440fx had
> 4920 * multiple ide controllers.
> 4921 */
> 4922 if (qemuDomainMachineIsI440FX(domainDef))
> 4923 virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
> 4924 _("Only a single IDE controller is
> unsupported "
> 4925 "for this machine type"));
>
> I didn't dig VIR_DOMAIN_CONTROLLER_TYPE_IDE up, but reasoning from the
> comment, I think this error message should be something like "More
> than one IDE controllers is not supported for this machine type"
>
The following commit replaced "unsupported" by "supported" in the error
message:
http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=e4ab3b5d
commit e4ab3b5d38bfbaef3cfe9da07ffafca0904e69da
Author: Guido Günther <agx@xxxxxxxxxxx>
CommitDate: 2015-11-23 09:39:29 +0100
qemu: handle more machines with a single builtin IDE controller
like I440FX by moving the condition into qemuDomainMachineHasBuiltinIDE
and adding more machines.
Reference: http://bugs.debian.org/805189
git describe: v1.2.21-112-ge4ab3b5 contains: v1.3.0-rc1~91
It will be released in libvirt 1.3.0.
Jan
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