Alex Williamson b27bbf1f5b vfio/pci: Virtualize Maximum Payload Size ... [ Upstream commit 523184972b ] With virtual PCI-Express chipsets, we now see userspace/guest drivers trying to match the physical MPS setting to a virtual downstream port. Of course a lone physical device surrounded by virtual interconnects cannot make a correct decision for a proper MPS setting. Instead, let's virtualize the MPS control register so that writes through to hardware are disallowed. Userspace drivers like QEMU assume they can write anything to the device and we'll filter out anything dangerous. Since mismatched MPS can lead to AER and other faults, let's add it to the kernel side rather than relying on userspace virtualization to handle it. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2017-12-25 14:26:29 +01:00
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mdev	vfio/mdev: Use a module softdep for vfio_mdev	2017-02-08 13:13:25 -07:00
pci	vfio/pci: Virtualize Maximum Payload Size	2017-12-25 14:26:29 +01:00
platform	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
Kconfig	vfio: Fix build break when SPAPR_TCE_IOMMU=n	2017-02-08 13:13:25 -07:00
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vfio.c	vfio: Stall vfio_del_group_dev() for container group detach	2017-08-30 14:02:16 -06:00
vfio_iommu_spapr_tce.c	powerpc updates for 4.12 part 1.	2017-05-05 11:36:44 -07:00
vfio_iommu_type1.c	vfio/type1: Give hardware MSI regions precedence	2017-08-10 13:11:50 -06:00
vfio_spapr_eeh.c	drivers/vfio: Support EEH error injection	2015-05-12 20:33:35 +10:00
virqfd.c	sched/wait: Rename wait_queue_t => wait_queue_entry_t	2017-06-20 12:18:27 +02:00