On Thu, Mar 25, 2010 at 3:46 AM, Avi Kivity <avi@xxxxxxxxxx> wrote: > On 03/25/2010 08:09 AM, Cam Macdonell wrote: >> >> This patch adds a driver for my shared memory PCI device using the uio_pci >> interface. The driver has three memory regions. The first memory region >> is for >> device registers for sending interrupts. The second BAR is for receiving >> MSI-X >> interrupts and the third memory region maps the shared memory. The device >> only >> exports the first and third memory regions to userspace. >> >> This driver supports MSI-X and regular pin interrupts. Currently, the >> number of >> MSI vectors is set to 4 which could be increased, but the driver will work >> with >> fewer vectors. If MSI is not available, then regular interrupts will be >> used. >> > > There is now a generic PCI 2.3 driver that can handle all PCI devices. It > doesn't support MSI, but if we add MSI support then it can be used without > the need for a specialized driver. Agreed, I'd be happy to use the generic driver if MSI is there. What would MSI support for UIO look like? An array of "struct uio_irq" for the different vectors? Cam > > -- > error compiling committee.c: too many arguments to function > > -- 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
