Shameer Kolothum 45f80b2f23 hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume ... [ Upstream commit be12ad45e15b5ee0e2526a50266ba1d295d26a88 ] When the optional PRE_COPY support was added to speed up the device compatibility check, it failed to update the saving/resuming data pointers based on the fd offset. This results in migration data corruption and when the device gets started on the destination the following error is reported in some cases, [ 478.907684] arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: [ 478.913691] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000310200000010 [ 478.919603] arm-smmu-v3 arm-smmu-v3.2.auto: 0x000002088000007f [ 478.925515] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 [ 478.931425] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 [ 478.947552] hisi_zip 0000:31:00.0: qm_axi_rresp [error status=0x1] found [ 478.955930] hisi_zip 0000:31:00.0: qm_db_timeout [error status=0x400] found [ 478.955944] hisi_zip 0000:31:00.0: qm sq doorbell timeout in function 2 Fixes: d9a871e4a1 ("hisi_acc_vfio_pci: Introduce support for PRE_COPY state transitions") Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://lore.kernel.org/r/20231120091406.780-1-shameerali.kolothum.thodi@huawei.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-01-25 15:35:55 -08:00
..
Kconfig	vfio/pci: Cleanup Kconfig	2023-06-16 12:23:42 -06:00
Makefile	…
hisi_acc_vfio_pci.c	hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume	2024-01-25 15:35:55 -08:00
hisi_acc_vfio_pci.h	hisi_acc_vfio_pci: Move the dev compatibility tests for early check	2022-12-06 12:37:11 -07:00