Am 29.10.2015 um 09:15 hat Daniel P. Berrange geschrieben: > On Thu, Oct 29, 2015 at 09:11:15AM +0100, Kevin Wolf wrote: > > In qemu proper, you can use a dot syntax for -drive instead: > > > > qemu-system-x86_64 -drive \ > > driver=luks,\ > > secret=x,\ > > file.driver=file,\ > > file.filename=test.luks > > > > In qemu-io, you can't use such syntax on the command line, but the open > > command supports an -o option that accepts the same dot syntax. > > > > Note that qemu-img can't deal with this stuff yet, so you'll have > > trouble creating an image with such a specification. I guess you need to > > create it as a local file first and then use non-qemu tools to copy it > > somewhere where it's exported by rbd, iscsi or gluster. > > I wonder if my patches to qemu-io & qemu-img here do the right thing to > make this dot syntax work.... > > https://lists.gnu.org/archive/html/qemu-devel/2015-10/msg04382.html > https://lists.gnu.org/archive/html/qemu-devel/2015-10/msg04375.html
I haven't looked at the series in detail yet, but considering that it's probably harder to prevent it from working than getting it, I assume that your patches do allow it. Just passing the options QDict to bdrv_open() is enough, nesting is represented with the dot syntax in the keys there. In fact, if you use blockdev-add in QMP, it first converts the options to a flattened QDict with dot syntax for the keys before it processes it. Kevin
