[PATCH 0/2] vdpa_sim: fix suspend/reset and dma_unmap locking

[Xiong Weimin]

From: Xiong Weimin <xiongweimin@xxxxxxxxxx>

This series fixes two independent issues in the vDPA simulator:

1. Clear pending_kick on device reset so a deferred kick from a
   suspended device cannot be replayed after reset/re-init.

2. Hold iommu_lock across the full dma_unmap() path, including the
   passthrough-to-custom mapping transition, matching dma_map().

Both patches tested on an openEuler VM running kernel 6.16.8: built
vdpa_sim.ko from /usr/src/linux-6.16.8 and reloaded vdpa_sim /
vdpa_sim_net successfully.

Xiong Weimin (2):
  vdpa_sim: clear pending_kick on device reset
  vdpa_sim: hold iommu_lock across dma_unmap passthrough transition

---
 drivers/vdpa/vdpa_sim/vdpa_sim.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

-- 
2.43.0