linux_dsm_epyc7002/drivers/vfio
Zenghui Yu 1c0f68252a vfio/pci: Don't regenerate vconfig for all BARs if !bardirty
Now we regenerate vconfig for all the BARs via vfio_bar_fixup(), every
time any offset of any of them are read.  Though BARs aren't re-read
regularly, the regeneration can be avoided if no BARs had been written
since they were last read, in which case vdev->bardirty is false.

Let's return immediately in vfio_bar_fixup() if bardirty is false.

Suggested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Zenghui Yu <yuzenghui@huawei.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2020-09-21 14:08:12 -06:00
..
mdev vfio/mdev: Fix reference count leak in add_mdev_supported_type 2020-05-29 16:07:18 -06:00
pci vfio/pci: Don't regenerate vconfig for all BARs if !bardirty 2020-09-21 14:08:12 -06:00
platform vfio: platform: Switch to platform_get_irq_optional() 2020-03-24 09:26:30 -06:00
Kconfig docs: driver-api: add a series of orphaned documents 2019-07-15 11:03:02 -03:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vfio_iommu_spapr_tce.c vfio/spapr_tce: convert get_user_pages() --> pin_user_pages() 2020-07-27 13:43:38 -06:00
vfio_iommu_type1.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
vfio_spapr_eeh.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
vfio.c vfio: Cleanup allowed driver naming 2020-07-27 13:43:36 -06:00
virqfd.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00