On Wed, 2012-03-28 at 14:18 -0400, Jason Baron wrote: > The current kvm_init_irq_routing() doesn't set up the used_gsi_bitmap > correctly, and as a consequence pins max_gsi to 32 when it really > should be 1024. I ran into this limitation while testing pci > passthrough, where I consistently got an -ENOSPC return from > kvm_get_irq_route_gsi() called from assigned_dev_update_msix_mmio(). > > Signed-off-by: Jason Baron <jbaron@xxxxxxxxxx> > --- > kvm-all.c | 2 +- > 1 files changed, 1 insertions(+), 1 deletions(-) > > diff --git a/kvm-all.c b/kvm-all.c > index ab88c7c..b616c7d 100644 > --- a/kvm-all.c > +++ b/kvm-all.c > @@ -873,7 +873,7 @@ static void kvm_init_irq_routing(KVMState *s) > unsigned int gsi_bits, i; > > /* Round up so we can search ints using ffs */ > - gsi_bits = (gsi_count + 31) / 32; > + gsi_bits = ALIGN(gsi_count, 32); > s->used_gsi_bitmap = g_malloc0(gsi_bits / 8); > s->max_gsi = gsi_bits; > Acked-by: Alex Williamson <alex.williamson@xxxxxxxxxx> -- 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
