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> -----Original Message----- > From: Wood Scott-B07421 > Sent: Tuesday, July 16, 2013 5:01 PM > To: Yoder Stuart-B08248 > Cc: Wood Scott-B07421; Alex Williamson; Alexander Graf; Bhushan Bharat-R65777; Sethi Varun-B16395; > virtualization at lists.linux-foundation.org; Antonios Motakis; kvm at vger.kernel.org list; kvm- > ppc at vger.kern...

> -----Original Message----- > From: Wood Scott-B07421 > Sent: Tuesday, July 16, 2013 5:01 PM > To: Yoder Stuart-B08248 > Cc: Wood Scott-B07421; Alex Williamson; Alexander Graf; Bhushan Bharat-R65777; Sethi Varun-B16395; > virtualization at lists.linux-foundation.org; Antonios Motakis; kvm at vger.kernel.org list; kvm- > ppc at vger.kern...

> -----Original Message----- > From: Wood Scott-B07421 > Sent: Wednesday, July 03, 2013 1:52 PM > To: Alexander Graf > Cc: Yoder Stuart-B08248; Alex Williamson; Wood Scott-B07421; Bhushan Bharat-R65777; Sethi Varun-B16395; > virtualization at lists.linux-foundation.org; Antonios Motakis; kvm at vger.kernel.org list; kvm- > ppc at vger.ke...

On 07/02/2013 08:07:53 PM, Alexander Graf wrote: > > On 03.07.2013, at 01:25, Yoder Stuart-B08248 wrote: > > > 8. Open Issues > > > > -how to handle cases where VFIO is requested to handle > > a device where the valid, mappable range for a region > > is less than a page size. See example above where an > > advertised region in the DMA

On 07/02/2013 08:07:53 PM, Alexander Graf wrote: > > On 03.07.2013, at 01:25, Yoder Stuart-B08248 wrote: > > > 8. Open Issues > > > > -how to handle cases where VFIO is requested to handle > > a device where the valid, mappable range for a region > > is less than a page size. See example above where an > > advertised region in the DMA

> -----Original Message----- > From: Wood Scott-B07421 > Sent: Wednesday, July 03, 2013 5:32 PM > To: Yoder Stuart-B08248 > Cc: Alex Williamson; Alexander Graf; Wood Scott-B07421; Bhushan Bharat-R65777; Sethi Varun-B16395; > virtualization at lists.linux-foundation.org; Antonios Motakis; kvm at vger.kernel.org list; kvm- > ppc at vger.ke...

> -----Original Message----- > From: Wood Scott-B07421 > Sent: Wednesday, July 03, 2013 5:32 PM > To: Yoder Stuart-B08248 > Cc: Alex Williamson; Alexander Graf; Wood Scott-B07421; Bhushan Bharat-R65777; Sethi Varun-B16395; > virtualization at lists.linux-foundation.org; Antonios Motakis; kvm at vger.kernel.org list; kvm- > ppc at vger.ke...

The write-up below is the first draft of a proposal for how the kernel can expose platform devices to user space using vfio. In short, I'm proposing a new ioctl VFIO_DEVICE_GET_DEVTREE_INFO which allows user space to correlate regions and interrupts to the corresponding device tree node structure that is defined for most platform devices. Regards, Stuart Yoder

The write-up below is the first draft of a proposal for how the kernel can expose platform devices to user space using vfio. In short, I'm proposing a new ioctl VFIO_DEVICE_GET_DEVTREE_INFO which allows user space to correlate regions and interrupts to the corresponding device tree node structure that is defined for most platform devices. Regards, Stuart Yoder

Version 2 -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, defined 5 new flags and associated structs -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, defined 1 new flag and

Version 2 -VFIO_GROUP_GET_DEVICE_FD-- specified that the path is a sysfs path -VFIO_DEVICE_GET_INFO-- defined 2 flags instead of 1 -deleted VFIO_DEVICE_GET_DEVTREE_INFO ioctl -VFIO_DEVICE_GET_REGION_INFO-- updated as per AlexW's suggestion, defined 5 new flags and associated structs -VFIO_DEVICE_GET_IRQ_INFO-- updated as per AlexW's suggestion, defined 1 new flag and