On 12/12/2017 13:02, Cédric Le Goater wrote: > When restoring a pending interrupt, we are setting the Q bit to force > a retrigger in xive_finish_unmask(). But we also need to force an EOI > in this case to reach the same initial state : P=1, Q=0. > > This can be done by not setting 'old_p' for pending interrupts which > will inform xive_finish_unmask() that an EOI needs to be sent. > > Suggested-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> > Signed-off-by: Cédric Le Goater <clg@xxxxxxxx> > --- > > Tested with a guest running iozone. > > arch/powerpc/kvm/book3s_xive.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) We really need this patch to fix VM migration on POWER9. When will it be merged? Thanks, Laurent -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
