Any ideas about this fix?
Regards, -Gonglei > -----Original Message----- > From: Qemu-devel > [mailto:qemu-devel-bounces+arei.gonglei=huawei....@nongnu.org] On > Behalf Of P J P > Sent: Wednesday, October 12, 2016 8:38 PM > To: Qemu Developers > Cc: Paolo Bonzini; Huawei PSIRT; Prasad J Pandit; Michael S. Tsirkin > Subject: [Qemu-devel] [PATCH] dma: rc4030: limit interval timer reload value > > From: Prasad J Pandit <p...@fedoraproject.org> > > The JAZZ RC4030 chipset emulator has a periodic timer and > associated interval reload register. The reload value is used > as divider when computing timer's next tick value. If reload > value is large, it could lead to divide by zero error. Limit > the interval reload value to avoid it. > > Reported-by: Huawei PSIRT <ps...@huawei.com> > Signed-off-by: Prasad J Pandit <p...@fedoraproject.org> > --- > hw/dma/rc4030.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/hw/dma/rc4030.c b/hw/dma/rc4030.c > index 2f2576f..c1b4997 100644 > --- a/hw/dma/rc4030.c > +++ b/hw/dma/rc4030.c > @@ -460,7 +460,7 @@ static void rc4030_write(void *opaque, hwaddr addr, > uint64_t data, > break; > /* Interval timer reload */ > case 0x0228: > - s->itr = val; > + s->itr = val & 0x01FF; > qemu_irq_lower(s->timer_irq); > set_next_tick(s); > break; > -- > 2.5.5 >
