On Mon, 2011-01-03 at 09:33 +0100, Jan Kiszka wrote: > From: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > > If kvmclock is used, which implies the kernel supports it, register a > kvmclock device with the sysbus. Its main purpose is to save and restore > the kernel state on migration, but this will also allow to visualize it > one day. > > Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx> > CC: Glauber Costa <glommer@xxxxxxxxxx> Hi Jan. I've just recently posted a patch (not sure what was made from it), that fixes a bug that you reintroduce here. The bug is: if we call KVM_GET_CLOCK ioctl in pre_save, this means that this value will change every time we issue savevm, even if the machine is not run in between. Ideally, we'd like to have two consecutive savevms returning the exact same thing in that situation. I like the general approach of moving it to sysbus, but please move the ioctl to change state notifiers. Cheers! -- 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
