On 06/16/2016 06:11 AM, Jim Fehlig wrote:
> When converting domXML to xen xl.cfg, backendtype should
> not be emitted if <driver> is not specified. Moreover,
> <driver name='file'/> should be converted to backendtype
> qdisk, similar to handling of <driver> in libxlMakeDisk()
> in libxl_conf.c.
>
> Prior to this change, connectDomainXMLToNative would
> produce incorrect xl.cfg when the input domXML contained
> <driver name='file'/>
>
> domXML:
>
> <disk type="file" device="disk">
> <driver name="file"/>
> <source file="/image/file/path"/>
> <target dev="xvda" bus="xen"/>
> </disk>
>
> virsh domxml-to-native xen-xl domXML
>
> disk = [ "format=raw,vdev=xvda,access=rw,backendtype=target=/image/file/path"
> ]
>
> xl create xl.cfg
> config parsing error in disk specification: unknown value
> for backendtype: near `target=/image/file/path' in
> `format=raw,vdev=xvda,access=rw,backendtype=target=/image/file/path'
>
> Signed-off-by: Jim Fehlig <jfeh...@suse.com>
FWIW looks good to me:
Reviewed-by: Joao Martins <joao.m.mart...@oracle.com>
> ---
> src/xenconfig/xen_xl.c | 16 +++++++++-------
> 1 file changed, 9 insertions(+), 7 deletions(-)
>
> diff --git a/src/xenconfig/xen_xl.c b/src/xenconfig/xen_xl.c
> index 5879c66..d524a82 100644
> --- a/src/xenconfig/xen_xl.c
> +++ b/src/xenconfig/xen_xl.c
> @@ -857,13 +857,15 @@ xenFormatXLDisk(virConfValuePtr list,
> virDomainDiskDefPtr disk)
> }
>
> /* backendtype */
> - virBufferAddLit(&buf, "backendtype=");
> - if (STREQ_NULLABLE(driver, "qemu"))
> - virBufferAddLit(&buf, "qdisk,");
> - else if (STREQ_NULLABLE(driver, "tap"))
> - virBufferAddLit(&buf, "tap,");
> - else if (STREQ_NULLABLE(driver, "phy"))
> - virBufferAddLit(&buf, "phy,");
> + if (driver) {
> + virBufferAddLit(&buf, "backendtype=");
> + if (STREQ(driver, "qemu") || STREQ(driver, "file"))
> + virBufferAddLit(&buf, "qdisk,");
> + else if (STREQ(driver, "tap"))
> + virBufferAddLit(&buf, "tap,");
> + else if (STREQ(driver, "phy"))
> + virBufferAddLit(&buf, "phy,");
> + }
>
> /* devtype */
> if (disk->device == VIR_DOMAIN_DISK_DEVICE_CDROM)
>
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