On Tue, 2015-12-15 at 11:11 +0100, Christoffer Dall wrote:
On Tue, Dec 15, 2015 at 10:36:32AM +0100, Martin Kletzander wrote:
On Mon, Dec 14, 2015 at 10:47:26AM -0600, Andrew Jones wrote:
On Mon, Dec 14, 2015 at 12:31:59PM +0100, Christoffer Dall wrote:
Hi all,
I'm trying to figure out what the correct solution for libvirt support for ARM KVM guests with GICv3 is.
The challenge is that QEMU's virt machine model defaults to GICv2 unless you specify an additional "-machine gic-version=host" parameter to QEMU, in which case your VM gets the same GIC version as your host.
Now, I'm told that this is inconvenient for libvirt, because it typically does not pass any -machine options, is that correct?
We do pass some options, for example, you can restrict the GIC to v2: https://libvirt.org/formatdomain.html#elementsFeatures
That could be modified to work for your purpose IIUC, right?
How do I figure out which values the version can take (v2, v3, host?) and which QEMU cmdline that translates into?
The parser will currently accept any numeric value, including eg. 1 and 42. The value 2 is special and is silently ignored for backwards compatibility; any other value will cause libvirt to add the gic-version option to the machine type. Cheers. -- Andrea Bolognani Software Engineer - Virtualization Team