On 14 August 2013 18:31, Alexander Graf <[email protected]> wrote:
> So why not have a vm ioctl to fetch the "best match" vcpu type?
I don't object to that particularly, but
(a) we're not going to use the extra flexibility because
the only thing we'll do is just bounce the answer
back at the kernel
(b) it requires an actual new ioctl rather than just
defining another supported value for the existing one
(c) the code is less neat if you have to do "ask kernel
for best-match, if it has it use it otherwise fall
back to [small list of legacy cpus]" than if you
just have "try best-match/legacy1/legacy2/legacy3".
If the consensus is that a 'fetch best match' ioctl
is the preferred API that's fine.
-- PMM
