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vfio/migration: Add load_device_config_state_start trace event

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And rename existing load_device_config_state trace event to
load_device_config_state_end for consistency since it is triggered at the
end of loading of the VFIO device config state.

This way both the start and end points of particular device config
loading operation (a long, BQL-serialized operation) are known.

Reviewed-by: Cédric Le Goater <clg@redhat.com>
Signed-off-by: Maciej S. Szmigiero <maciej.szmigiero@oracle.com>
Link: https://lore.kernel.org/qemu-devel/1b6c5a2097e64c272eb7e53f9e4cca4b79581b38.1741124640.git.maciej.szmigiero@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>
This commit is contained in:
Maciej S. Szmigiero 2025-03-04 23:03:45 +01:00 • committed by Cédric Le Goater
parent 8305921a91
commit 5963c219a0
2 changed files with 5 additions and 2 deletions
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4
hw/vfio/migration.c
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@ -285,6 +285,8 @@ static int vfio_load_device_config_state(QEMUFile *f, void *opaque)
VFIODevice *vbasedev = opaque;
uint64_t data;
trace_vfio_load_device_config_state_start(vbasedev->name);
if (vbasedev->ops && vbasedev->ops->vfio_load_config) {
int ret;
@ -303,7 +305,7 @@ static int vfio_load_device_config_state(QEMUFile *f, void *opaque)
return -EINVAL;
}
trace_vfio_load_device_config_state(vbasedev->name);
trace_vfio_load_device_config_state_end(vbasedev->name);
return qemu_file_get_error(f);
}