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| author | Steve Sistare <steven.sistare@oracle.com> | 2025-07-14 12:21:30 -0700 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2025-07-28 17:52:34 +0200 |
| commit | 9751377c3a9445f597c5d0bf134a79c8cb58e45d (patch) | |
| tree | 45edb3c7467fa0b190f7cdd94d7e747141bfeaa6 /hw/core/cpu-user.c | |
| parent | 1dc1220fbd30a200aea972fc3aa53d439aff466b (diff) | |
| download | qemu-9751377c3a9445f597c5d0bf134a79c8cb58e45d.zip qemu-9751377c3a9445f597c5d0bf134a79c8cb58e45d.tar.gz qemu-9751377c3a9445f597c5d0bf134a79c8cb58e45d.tar.bz2 | |
vfio: fix sub-page bar after cpr
Regions for sub-page BARs are normally mapped here, in response to the
guest writing to PCI config space:
vfio_pci_write_config()
pci_default_write_config()
pci_update_mappings()
memory_region_add_subregion()
vfio_sub_page_bar_update_mapping()
... vfio_dma_map()
However, after CPR, the guest does not reconfigure the device and the
code path above is not taken. To fix, in vfio_cpr_pci_post_load, call
vfio_sub_page_bar_update_mapping for each sub-page BAR with a valid
address.
Fixes: 7e9f21411302 ("vfio/container: restore DMA vaddr")
Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1752520890-223356-1-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/core/cpu-user.c')
0 files changed, 0 insertions, 0 deletions