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 | 184 +++++++++++++++++++++++++++++++++++++------ hw/vfio/pci-quirks.c | 1 + hw/vfio/pci.h | 1 + 3 files changed, 160 insertions(+), 26 deletions(-) -- 2.46.0 This email contains confidential information. If you have received it in error, you must not read, use, copy or pass on this e-mail or its attachments. If you have received the e-mail in error, please inform me immediately by reply e-mail and then delete this e-mail from your system. Thank you Diese E-Mail enthält vertrauliche Informationen. Sollten Sie sie irrtümlich erhalten haben, dürfen Sie diese E-Mail oder ihre Anhänge nicht lesen, verwenden, kopieren oder weitergeben. Sollten Sie die Mail versehentlich erhalten haben, teilen Sie mir dies bitte umgehend per Antwort-E-Mail mit und löschen Sie diese E-Mail dann aus Ihrem System. Vielen Dank Beckhoff Automation GmbH & Co. KG | Managing Director: Dipl. Phys. Hans Beckhoff Registered office: Verl, Germany | Register court: Guetersloh HRA 7075