OpenCloudOS-Kernel/drivers/vfio/pci
Fred Gao e4eccb8536 vfio/pci: Bypass IGD init in case of -ENODEV
Bypass the IGD initialization when -ENODEV returns,
that should be the case if opregion is not available for IGD
or within discrete graphics device's option ROM,
or host/lpc bridge is not found.

Then use of -ENODEV here means no special device resources found
which needs special care for VFIO, but we still allow other normal
device resource access.

Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Xiong Zhang <xiong.y.zhang@intel.com>
Cc: Hang Yuan <hang.yuan@linux.intel.com>
Cc: Stuart Summers <stuart.summers@intel.com>
Signed-off-by: Fred Gao <fred.gao@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-11-03 11:07:40 -07:00
..
Kconfig vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO 2020-10-12 11:37:59 -06:00
Makefile vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO 2020-10-12 11:37:59 -06:00
trace.h vfio/pci: Cleanup license mess 2019-01-22 11:06:05 -07:00
vfio_pci.c vfio/pci: Bypass IGD init in case of -ENODEV 2020-11-03 11:07:40 -07:00
vfio_pci_config.c Merge branches 'v5.10/vfio/bardirty', 'v5.10/vfio/dma_avail', 'v5.10/vfio/misc', 'v5.10/vfio/no-cmd-mem' and 'v5.10/vfio/yan_zhao_fixes' into v5.10/vfio/next 2020-09-22 10:56:51 -06:00
vfio_pci_igd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vfio_pci_intrs.c vfio/pci: Clear token on bypass registration failure 2020-10-19 07:13:55 -06:00
vfio_pci_nvlink2.c drivers/powerpc: Replace _ALIGN_UP() by ALIGN() 2020-05-11 23:15:15 +10:00
vfio_pci_private.h vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO 2020-10-12 11:37:59 -06:00
vfio_pci_rdwr.c vfio/pci: Implement ioeventfd thread handler for contended memory lock 2020-11-03 11:07:40 -07:00
vfio_pci_zdev.c vfio-pci/zdev: Add zPCI capabilities to VFIO_DEVICE_GET_INFO 2020-10-12 11:37:59 -06:00