--- tools/virsh.pod | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-) diff --git a/tools/virsh.pod b/tools/virsh.pod index cad5b1c..a26c420 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -1675,9 +1675,15 @@ I<source> is path for the files and devices. I<target> controls the bus or device under which the disk is exposed to the guest OS. It indicates the "logical" device name. I<driver> can be I<file>, I<tap> or I<phy> for the Xen hypervisor depending on the kind of access; or I<qemu> for the QEMU emulator. -I<type> can indicate I<lun>, I<cdrom> or I<floppy> as alternative to the disk default, -although this use only replaces the media within the existing virtual cdrom or -floppy device; consider using B<update-device> for this usage instead. +Further details to the driver can be passed using I<subdriver>. For Xen +I<subdriver> can be I<aio>, while for QEMU subdriver should match the format +of the disk source, such as I<raw> or I<qcow2>. Hypervisor default will be +used if I<subdriver> is not specified. However, the default may not be +correct, esp. for QEMU as for security reasons it is configured not to detect +disk formats. I<type> can indicate I<lun>, I<cdrom> or I<floppy> as +alternative to the disk default, although this use only replaces the media +within the existing virtual cdrom or floppy device; consider using +B<update-device> for this usage instead. I<mode> can specify the two specific mode I<readonly> or I<shareable>. I<--config> indicates the changes will affect the next boot of the domain, for compatibility purposes, I<--persistent> is alias of I<--config>.