Re: [libvirt] [Qemu-devel] [Qemu PATCH v2] add a boot option to do strict boot

On 01/22/2013 08:52 AM, Amos Kong wrote: >>> >>> Libvirt will need to expose an attribute that lets the user control >>> whether to use this new option; how do we probe via QMP whether the >>> new >>> -boot strict=on command-line option is available? >> >> Hi all, >> >> How about add new info/query command? >> >> (hmp) info strict-boot >> on >> >> (qmp) {"execute": "query-strict-boot"} >> {"return": {"state": true}} > > It might be not a good solution, I already updated qemu-options.hx, > we can check help message to know if this new option is added or not. Having libvirt probe the -help output is out of the question. We already declared that for qemu 1.3 and beyond, ALL command line behavior must ALSO be probe-able via QMP. I think Anthony had a trick for testing for existence of various command line options without needing to add a new query-strict-boot command, but I don't remember what that trick was.

-- Eric Blake eblake redhat com +1-919-301-3266 Libvirt virtualization library http://libvirt.org