On 22.08.2010, at 18:42, Avi Kivity wrote: > On 08/17/2010 04:57 PM, Alexander Graf wrote: >> We will soon add SR PV support to the shared page, so we need some >> infrastructure that allows the guest to query for features KVM exports. >> >> This patch adds a second return value to the magic mapping that >> indicated to the guest which features are available. >> > > You need to make that feature controllable from userspace, to allow new->old save/restore. Good one :). We're still missing too much stuff to even run without losing interrupts yet and you're thinking about new->old save/restore. Who'd want to migrate onto a system that's broken anyways? Besides - we're missing too many register values from the kernel side to even be able to perform a migration. I'm planning to add migration, probably after SMP. But that will be another CAP and anything before that won't be able to save/restore. Alex -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
