> Subject: Re: [RFC qemu 2/4] virtio-balloon: Add a new feature to balloon > device > > On Thu, Mar 03, 2016 at 06:44:26PM +0800, Liang Li wrote: > > Extend the virtio balloon device to support a new feature, this new > > feature can help to get guest's free pages information, which can be > > used for live migration optimzation. > > > > Signed-off-by: Liang Li <liang.z.li@xxxxxxxxx> > > I don't understand why we need a new interface. > Balloon already sends free pages to host. > Just teach host to skip these pages. > I just make use the current virtio-balloon implementation, it's more complicated to invent a new virtio-io device... Actually, there is no need to inflate the balloon before live migration, so the host has no information about the guest's free pages, that's why I add a new one. > Maybe instead of starting with code, you should send a high level description > to the virtio tc for consideration? > > You can do it through the mailing list or using the web form: > http://www.oasis- > open.org/committees/comments/form.php?wg_abbrev=virtio > Thanks for your information and suggestion. Liang _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
