hisi_acc_vfio_pci: fix VF reset timeout issue

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[ Upstream commit a22099ed79 ]

If device error occurs during live migration, qemu will
reset the VF. At this time, VF reset and device reset are performed
simultaneously. The VF reset will timeout. Therefore, the QM_RESETTING
flag is used to ensure that VF reset and device reset are performed
serially.

Fixes: b0eed08590 ("hisi_acc_vfio_pci: Add support for VFIO live migration")
Signed-off-by: Weili Qian <qianweili@huawei.com>
Link: https://lore.kernel.org/r/20260122020205.2884497-2-liulongfang@huawei.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Weili Qian 2026-01-22 10:02:02 +08:00 • committed by Greg Kroah-Hartman

parent 980aa1f8d0

commit ac092258d0

2 changed files with 26 additions and 0 deletions

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24

drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c

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2

drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.h

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