Alex Williamson a563fc1858 vfio/fsl-mc: Block calling interrupt handler without trigger ... [ Upstream commit 7447d911af ] The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is initially NULL and may become NULL if the user sets the trigger eventfd to -1. The interrupt handler itself is guaranteed that trigger is always valid between request_irq() and free_irq(), but the loopback testing mechanisms to invoke the handler function need to test the trigger. The triggering and setting ioctl paths both make use of igate and are therefore mutually exclusive. The vfio-fsl-mc driver does not make use of irqfds, nor does it support any sort of masking operations, therefore unlike vfio-pci and vfio-platform, the flow can remain essentially unchanged. Cc: Diana Craciun <diana.craciun@oss.nxp.com> Cc: <stable@vger.kernel.org> Fixes: cc0ee20bd9 ("vfio/fsl-mc: trigger an interrupt via eventfd") Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Eric Auger <eric.auger@redhat.com> Link: https://lore.kernel.org/r/20240308230557.805580-8-alex.williamson@redhat.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-04-13 12:59:21 +02:00
..
fsl-mc	vfio/fsl-mc: Block calling interrupt handler without trigger	2024-04-13 12:59:21 +02:00
mdev	vfio/mdev: Make to_mdev_device() into a static inline	2022-08-21 15:16:07 +02:00
pci	vfio/pci: Create persistent INTx handler	2024-04-13 12:59:20 +02:00
platform	vfio/platform: Create persistent IRQ handlers	2024-04-13 12:59:21 +02:00
Kconfig	vfio: Use config not menuconfig for VFIO_NOIOMMU	2021-09-18 13:40:12 +02:00
Makefile
vfio_iommu_spapr_tce.c
vfio_iommu_type1.c	vfio/type1: fix cap_migration information leak	2023-09-19 12:20:14 +02:00
vfio_spapr_eeh.c
vfio.c	vfio: Clear the caps->buf to NULL after free	2022-08-25 11:38:18 +02:00
virqfd.c	vfio: Introduce interface to flush virqfd inject workqueue	2024-04-13 12:59:20 +02:00