I've applied all your patches. Thanks! On Saturday, October 30, 2010 09:58:55 am Alex Williamson wrote: > Hi Tom, > > I've updated some patches I've been working on to v5 and wanted to > see what you think. I also found a couple minor bugs, fixed in this > series. > > The main idea is that since the VFIO interface defines that the INTx > interrupt is disabled when it fires, we should provide an interface > to re-enable it. We currently have to do a read-modify-write to PCI > config space, requring two ioctls. I introduce an ioctl to do this > for us. An important aspect of this is that now we can support > non-PCI-2.3 devices since re-enabling the interrupt is abstracted > (with the same caveat as current KVM device assignment, that they > must get an exclusive interrupt). The real trick though is that we > can then also create an irqfd-like mechanism to trigger re-enabling > interrupts from and eventfd. This allows qemu to do all the setup > for connecting interrupts from VFIO into KVM and EOIs from KVM to > VFIO, then lets userspace get completely out of the way. > > Hope you like it. Thanks, > > Alex > --- > > Alex Williamson (5): > vfio: Add a new ioctl to support EOI via eventfd > vfio: Add support for non-PCI 2.3 compliant devices > vfio: Add ioctl to re-enable interrupts > vfio: Fix requested regions > vfio: Fix the ROM mask > > > drivers/vfio/vfio_intrs.c | 254 > +++++++++++++++++++++++++++++++++++++--- drivers/vfio/vfio_main.c | > 37 +++++- > drivers/vfio/vfio_pci_config.c | 2 > drivers/vfio/vfio_rdwr.c | 4 - > include/linux/vfio.h | 14 ++ > 5 files changed, 279 insertions(+), 32 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
