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| author | Michael S. Tsirkin <mst@redhat.com> | 2009-07-20 10:29:34 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-09-15 09:50:48 -0700 |
| commit | ccb86a6907c9ba7b5be5f521362fc308e80bed34 (patch) | |
| tree | e10f409f582a50243124d9b8bf38b2ec8be8d5ac /MAINTAINERS | |
| parent | a56af87648054089d89874b52e3fc23ed4f274ad (diff) | |
| download | lwn-ccb86a6907c9ba7b5be5f521362fc308e80bed34.tar.gz lwn-ccb86a6907c9ba7b5be5f521362fc308e80bed34.zip | |
uio: add generic driver for PCI 2.3 devices
This adds a generic uio driver that can bind to any PCI device. First
user will be virtualization where a qemu userspace process needs to give
guest OS access to the device.
Interrupts are handled using the Interrupt Disable bit in the PCI
command register and Interrupt Status bit in the PCI status register.
All devices compliant to PCI 2.3 (circa 2002) and all compliant PCI
Express devices should support these bits. Driver detects this support,
and won't bind to devices which do not support the Interrupt Disable Bit
in the command register.
It's expected that more features of interest to virtualization will be
added to this driver in the future. Possibilities are: mmap for device
resources, MSI/MSI-X, eventfd (to interface with kvm), iommu.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Chris Wright <chrisw@redhat.com>
Signed-off-by: Hans J. Koch <hjk@linutronix.de>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'MAINTAINERS')
| -rw-r--r-- | MAINTAINERS | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/MAINTAINERS b/MAINTAINERS index 837b5985ac40..01193a4fe30e 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2218,6 +2218,13 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic.git S: Maintained F: include/asm-generic +GENERIC UIO DRIVER FOR PCI DEVICES +M: Michael S. Tsirkin <mst@redhat.com> +L: kvm@vger.kernel.org +L: linux-kernel@vger.kernel.org +S: Supported +F: drivers/uio/uio_pci_generic.c + GFS2 FILE SYSTEM M: Steven Whitehouse <swhiteho@redhat.com> L: cluster-devel@redhat.com |