On Sat, 2010-10-23 at 19:29 +0200, Michael S. Tsirkin wrote: > On Sat, Oct 23, 2010 at 10:52:43AM -0600, Alex Williamson wrote: > > On Sat, 2010-10-23 at 18:16 +0200, Michael S. Tsirkin wrote: > > > On Fri, Oct 22, 2010 at 02:40:39PM -0600, Alex Williamson wrote: > > > > We need to pull in config.h or else kvm.h doesn't pull in > > > > linux/config.h, which we need if we ever want KVM_CAP_IRQCHIP > > > > defined. This requires moving the object over to Makefile.target > > > > or else we can't find config-target.h > > > > > > > > Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> > > > > > > Why? We just moved it from .target to .objs, see > > > 889e30cc18e21f2091b77267dca8096d7dd34f8b. > > > > Maybe that's why it used to work. When building in the qemu-kvm.git > > tree, I'm not getting CONFIG_KVM defined, which means I'm not getting > > KVM_CAP_IRQCHIP defined, which results in msix_irq_entries not being > > allocated. Then when I call msix_vector_use, I get a seg fault. > > Something is broken there. Thanks, > > > > Alex > > This is hopefully fixed in the latest bits. > bd8b215bce453706c3951460cc7e6627ccb90314 Nope, my tree includes that. It's not kvm_set_irq, it's kvm_msix_add, which dereferences msix_irq_entries, which is only allocated in msix_init if KVM_CAP_IRQCHIP is defined, which it's not. Maybe you also meant to remove the ifdef from msix_init? I also note there's another in msix_notify. Thanks, Alex -- 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
