On Wed, Sep 30, 2015 at 03:28:56PM -0700, Stephen Hemminger wrote: > This is a new UIO device driver to allow supporting MSI-X and MSI devices > in userspace. It has been used in environments like VMware and older versions > of QEMU/KVM where no IOMMU support is available. > > Stephen Hemminger (2): > > *** BLURB HERE ***
I think this needs some more work to make sure userspace can drive devices without a risk of crashing the kernel even when there's no IOMMU. I sent some comments in response to the patch itself. Please copy me on future versions of this driver. Thanks! > Stephen Hemminger (2): > uio: add support for ioctls > uio: new driver to support PCI MSI-X > > drivers/uio/Kconfig | 9 ++ > drivers/uio/Makefile | 1 + > drivers/uio/uio.c | 15 ++ > drivers/uio/uio_msi.c | 378 > +++++++++++++++++++++++++++++++++++++++++++ > include/linux/uio_driver.h | 3 + > include/uapi/linux/Kbuild | 1 + > include/uapi/linux/uio_msi.h | 22 +++ > 7 files changed, 429 insertions(+) > create mode 100644 drivers/uio/uio_msi.c > create mode 100644 include/uapi/linux/uio_msi.h > > -- > 2.1.4 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
