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authorSteve Sistare <steven.sistare@oracle.com>2025-06-10 08:39:19 -0700
committerCédric Le Goater <clg@redhat.com>2025-06-11 14:01:58 +0200
commit7e9f21411302d823e9ee563ff6a2a40b1ffc1266 (patch)
tree0c6c8539d7c63e0b84ba19dd95278b5a91f983f9 /hw/pci/pci.c
parent1faadd96306b428f2e8e35f71761c333a6777f55 (diff)
downloadfocaccia-qemu-7e9f21411302d823e9ee563ff6a2a40b1ffc1266.tar.gz
focaccia-qemu-7e9f21411302d823e9ee563ff6a2a40b1ffc1266.zip
vfio/container: restore DMA vaddr
In new QEMU, do not register the memory listener at device creation time.
Register it later, in the container post_load handler, after all vmstate
that may affect regions and mapping boundaries has been loaded.  The
post_load registration will cause the listener to invoke its callback on
each flat section, and the calls will match the mappings remembered by the
kernel.

The listener calls a special dma_map handler that passes the new VA of each
section to the kernel using VFIO_DMA_MAP_FLAG_VADDR.  Restore the normal
handler at the end.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/qemu-devel/1749569991-25171-7-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'hw/pci/pci.c')
0 files changed, 0 insertions, 0 deletions