Re: [Qemu-devel] [PATCH V1 1/1] tests: Add migration test for aarch64

[Christoffer Dall]

On Thu, Feb 01, 2018 at 01:25:20PM +0100, Andrew Jones wrote:
> On Thu, Feb 01, 2018 at 11:48:31AM +0100, Christoffer Dall wrote:
> > On Thu, Feb 01, 2018 at 11:42:22AM +0100, Andrew Jones wrote:
> > > On Thu, Feb 01, 2018 at 10:59:54AM +0100, Christoffer Dall wrote:
> > > > On Thu, Feb 1, 2018 at 10:33 AM, Ard Biesheuvel
> > > > > If you could use dirty page tracking to only perform the cache
> > > > > invalidation when the framebuffer memory has been updated, you can at
> > > > > least limit the impact to cases where the framebuffer is actually
> > > > > used, rather than sitting idle with a nice wallpaper image.
> > > 
> > > Yes, this is the exact approach I took back when I experimented with
> > > this. I must have screwed up my PoC in some way (like using the gcc
> > > builtin), because it wasn't working for me...
> > > 
> > Does that mean you have some code you feel like reviving and use to send
> > out an RFC based on? ;)
> >
> 
> I don't usually delete things, but I do do some sort of copy on use
> from old homedirs to new ones from time to time, letting stuff that
> gets really old completely drop at some point. I might be able to
> find the old work, or just hack a quick and ugly version from my
> memory to share - hopefully whatever I did to cause it to fail last
> time has been forgotten :-)
> 

If you have bandwidth to look at this that's great.  Otherwise let us
know, and I'll see if I can devote some time to it.

Thanks,
-Christoffer