android_kernel_samsung_a7y1.../drivers/vfio
hexin 1e37e15302 vfio_pci: Restore original state on release
[ Upstream commit 92c8026854c25093946e0d7fe536fd9eac440f06 ]

vfio_pci_enable() saves the device's initial configuration information
with the intent that it is restored in vfio_pci_disable().  However,
the commit referenced in Fixes: below replaced the call to
__pci_reset_function_locked(), which is not wrapped in a state save
and restore, with pci_try_reset_function(), which overwrites the
restored device state with the current state before applying it to the
device.  Reinstate use of __pci_reset_function_locked() to return to
the desired behavior.

Fixes: 890ed578df82 ("vfio-pci: Use pci "try" reset interface")
Signed-off-by: hexin <hexin15@baidu.com>
Signed-off-by: Liu Qi <liuqi16@baidu.com>
Signed-off-by: Zhang Yu <zhangyu31@baidu.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2020-04-07 07:43:13 +02:00
..
pci vfio_pci: Restore original state on release 2020-04-07 07:43:13 +02:00
platform A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Kconfig A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
Makefile A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vfio_iommu_spapr_tce.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vfio_iommu_type1.c vfio/type1: Limit DMA mappings per container 2020-04-06 16:41:46 +02:00
vfio_spapr_eeh.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
vfio.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30
virqfd.c A750FXXU4CTBC 2020-03-27 21:51:54 +05:30