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android_kernel_motorola_sm6225/drivers/vfio/pci
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Eric Auger c8fa33f831 vfio_pci: Enable memory accesses before calling pci_map_rom 
[ Upstream commit 0cfd027be1d6def4a462cdc180c055143af24069 ]

pci_map_rom/pci_get_rom_size() performs memory access in the ROM.
In case the Memory Space accesses were disabled, readw() is likely
to trigger a synchronous external abort on some platforms.

In case memory accesses were disabled, re-enable them before the
call and disable them back again just after.

Fixes: 89e1f7d4c6 ("vfio: Add PCI device driver")
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-01-27 14:50:24 +01:00
..
Kconfig vfio/pci: Make IGD support a configurable option 2018-06-18 16:39:50 -06:00
Makefile
vfio_pci.c vfio_pci: Enable memory accesses before calling pci_map_rom 2020-01-27 14:50:24 +01:00
vfio_pci_config.c vfio/pci: Mask buggy SR-IOV VF INTx support 2019-11-20 18:47:32 +01:00
vfio_pci_igd.c vfio/pci: Intel IGD host and LCP bridge config space access 2016-02-22 16:10:09 -07:00
vfio_pci_intrs.c vfio/pci: call irq_bypass_unregister_producer() before freeing irq 2019-12-21 10:57:37 +01:00
vfio_pci_private.h vfio/pci: Add ioeventfd support 2018-03-26 13:22:58 -06:00
vfio_pci_rdwr.c vfio/pci: Add ioeventfd support 2018-03-26 13:22:58 -06:00