| Message ID | 20240828134328.94528-1-c.koehne@beckhoff.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | vfio/igd: add passthrough support for IGDs of gen 11 and later | expand |
On Wed, 28 Aug 2024 15:43:21 +0200 "Corvin Köhne" <corvin.koehne@gmail.com> wrote: > Hi, > > Qemu has experimental support for GPU passthrough of Intels integrated graphic > devices. Unfortunately, Intel has changed some bits for their gen 11 devices > and later. To support these devices, we have to account for those changes. This > patch series adds the missing bits on the Qemu side. > > I've tested the patch series on an ElkhartLake and TigerLake device. On the > guest side, I've tested an EFI environment (GOP driver), a Linux guest and a > Windows VM. The driver of all guests are able to use the GPU and produce an > output on the connected display. > > Corvin Köhne (7): > vfio/igd: return an invalid generation for unknown devices > vfio/igd: support legacy mode for all known generations > vfio/igd: use new BDSM register location and size for gen 11 and later > vfio/igd: add new bar0 quirk to emulate BDSM mirror > vfio/igd: add ID's for ElkhartLake and TigerLake > vfio/igd: don't set stolen memory size to zero > vfio/igd: correctly calculate stolen memory size for gen 9 and later > > hw/vfio/igd.c | 185 +++++++++++++++++++++++++++++++++++++------ > hw/vfio/pci-quirks.c | 1 + > hw/vfio/pci.h | 1 + > 3 files changed, 161 insertions(+), 26 deletions(-) > LGTM, for series Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
On 8/28/24 15:43, Corvin Köhne wrote: > Hi, > > Qemu has experimental support for GPU passthrough of Intels integrated graphic > devices. Unfortunately, Intel has changed some bits for their gen 11 devices > and later. To support these devices, we have to account for those changes. This > patch series adds the missing bits on the Qemu side. > > I've tested the patch series on an ElkhartLake and TigerLake device. On the > guest side, I've tested an EFI environment (GOP driver), a Linux guest and a > Windows VM. The driver of all guests are able to use the GPU and produce an > output on the connected display. > > Corvin Köhne (7): > vfio/igd: return an invalid generation for unknown devices > vfio/igd: support legacy mode for all known generations > vfio/igd: use new BDSM register location and size for gen 11 and later > vfio/igd: add new bar0 quirk to emulate BDSM mirror > vfio/igd: add ID's for ElkhartLake and TigerLake > vfio/igd: don't set stolen memory size to zero > vfio/igd: correctly calculate stolen memory size for gen 9 and later > > hw/vfio/igd.c | 185 +++++++++++++++++++++++++++++++++++++------ > hw/vfio/pci-quirks.c | 1 + > hw/vfio/pci.h | 1 + > 3 files changed, 161 insertions(+), 26 deletions(-) > Applied to vfio-next. Thanks, C.