On Fri, Nov 30, 2012 at 02:51:28PM +0000, Marc Zyngier wrote: > A bug in the KVM GIC init code set the priority mask to the > highest possible value, while the reset value should be zero. > > Now that the kernel bug is fixed, kvm-tool must properly configure > its GIC CPU interface in order to receive the boot IPI. Just set > the GICC_PMR register to the maximum value (0xff), and it "just works". > > Cc: Will Deacon <[email protected]> > Cc: Pekka Enberg <[email protected]> > Signed-off-by: Marc Zyngier <[email protected]> > --- > v2: Changed the constant name to GIC_CPUI_PMR_MIN_PRIO, as suggested by > Peter Maydell > > tools/kvm/arm/aarch32/smp-pen.S | 4 ++++ > tools/kvm/arm/include/arm-common/gic.h | 2 ++ > 2 files changed, 6 insertions(+) > > diff --git a/tools/kvm/arm/aarch32/smp-pen.S b/tools/kvm/arm/aarch32/smp-pen.S > index 0861171..2398297 100644 > --- a/tools/kvm/arm/aarch32/smp-pen.S > +++ b/tools/kvm/arm/aarch32/smp-pen.S > @@ -17,6 +17,10 @@ smp_pen_start: > mov r1, #GIC_CPUI_CTLR_EN > str r1, [r0] > > + @ Set the priority mask to accept any interrupt > + mov r1, #GIC_CPUI_PMR_MIN_PRIO > + str r1, [r0, #4]
nit: can you #define the register offset in arm-common/gic.h please? Will -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
