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migration: Add Error** argument to .load_setup() handler

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This will be useful to report errors at a higher level, mostly in VFIO
today.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
Link: https://lore.kernel.org/r/20240320064911.545001-9-clg@redhat.com
[peterx: drop comment for ERRP_GUARD, per Markus]
Signed-off-by: Peter Xu <peterx@redhat.com>
This commit is contained in:
Cédric Le Goater 2024-03-20 07:49:04 +01:00 • committed by Peter Xu
parent 01c3ac681b
commit e4fa064d56
4 changed files with 18 additions and 8 deletions
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3
include/migration/register.h
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@ -234,10 +234,11 @@ typedef struct SaveVMHandlers {
*
* @f: QEMUFile where to receive the data
* @opaque: data pointer passed to register_savevm_live()
* @errp: pointer to Error*, to store an error if it happens.
*
* Returns zero to indicate success and negative for error
*/
int (*load_setup)(QEMUFile *f, void *opaque);
int (*load_setup)(QEMUFile *f, void *opaque, Error **errp);
/**
* @load_cleanup