On Mon, Nov 02, 2020 at 09:14:22AM +0100, Christian Ehrhardt wrote:
On Thu, Oct 29, 2020 at 5:07 PM Dario Faggioli <dfaggioli@suse.com> wrote:
This patch maps /domain/cpu/maxphysaddr into -cpu parameters:
- <maxphysaddr mode='passthrough'/> becomes host-phys-bits=on - <maxphysaddr mode='emualte' bits='42'/> becomes phys-bits=42
I can't thank you enough Dario for starting this, I have waited for this quite a while and never found the time for it myself :-/
Looking at my todo notes I wondered if while touching it we should right away also add host-phys-bits-limit in the same spot? See https://git.qemu.org/?p=qemu.git;a=commit;h=258fe08bd341d
I'm not convinced we actally need it in libvirt. Assuming we report the host phys bits in the capabilities XML, apps can already achieve this functionality with the mode=emulate bits=NN settings by populating NN based on the capabilities XML. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|