diff options
| author | Cédric Le Goater <clg@redhat.com> | 2024-03-20 07:49:04 +0100 |
|---|---|---|
| committer | Peter Xu <peterx@redhat.com> | 2024-04-23 18:36:01 -0400 |
| commit | e4fa064d5610a96e50b49c1ea34c98ef12d0034a (patch) | |
| tree | ffcbdf0f6dc90c3142859ff6d6fabe103d1f92a3 | |
| parent | 01c3ac681bd6709d2bf6a7d9591c40a394e39536 (diff) | |
migration: Add Error** argument to .load_setup() handler
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>
| -rw-r--r-- | hw/vfio/migration.c | 9 | ||||
| -rw-r--r-- | include/migration/register.h | 3 | ||||
| -rw-r--r-- | migration/ram.c | 3 | ||||
| -rw-r--r-- | migration/savevm.c | 11 |
4 files changed, 18 insertions, 8 deletions
diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c index 5763c0b683..06ae40969b 100644 --- a/hw/vfio/migration.c +++ b/hw/vfio/migration.c @@ -588,12 +588,17 @@ static void vfio_save_state(QEMUFile *f, void *opaque) } } -static int vfio_load_setup(QEMUFile *f, void *opaque) +static int vfio_load_setup(QEMUFile *f, void *opaque, Error **errp) { VFIODevice *vbasedev = opaque; + int ret; - return vfio_migration_set_state(vbasedev, VFIO_DEVICE_STATE_RESUMING, + ret = vfio_migration_set_state(vbasedev, VFIO_DEVICE_STATE_RESUMING, vbasedev->migration->device_state); + if (ret) { + error_setg(errp, "%s: Failed to set RESUMING state", vbasedev->name); + } + return ret; } static int vfio_load_cleanup(void *opaque) diff --git a/include/migration/register.h b/include/migration/register.h index 64fc7c1103..f60e797894 100644 --- a/include/migration/register.h +++ b/include/migration/register.h @@ -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 diff --git a/migration/ram.c b/migration/ram.c index 6ea5a06e00..4cd4f0158c 100644 --- a/migration/ram.c +++ b/migration/ram.c @@ -3704,8 +3704,9 @@ void colo_release_ram_cache(void) * * @f: QEMUFile where to receive the data * @opaque: RAMState pointer + * @errp: pointer to Error*, to store an error if it happens. */ -static int ram_load_setup(QEMUFile *f, void *opaque) +static int ram_load_setup(QEMUFile *f, void *opaque, Error **errp) { xbzrle_load_setup(); ramblock_recv_map_init(); diff --git a/migration/savevm.c b/migration/savevm.c index a2679ba0b8..5d200cf42a 100644 --- a/migration/savevm.c +++ b/migration/savevm.c @@ -2768,8 +2768,9 @@ static void qemu_loadvm_state_switchover_ack_needed(MigrationIncomingState *mis) trace_loadvm_state_switchover_ack_needed(mis->switchover_ack_pending_num); } -static int qemu_loadvm_state_setup(QEMUFile *f) +static int qemu_loadvm_state_setup(QEMUFile *f, Error **errp) { + ERRP_GUARD(); SaveStateEntry *se; int ret; @@ -2784,10 +2785,11 @@ static int qemu_loadvm_state_setup(QEMUFile *f) } } - ret = se->ops->load_setup(f, se->opaque); + ret = se->ops->load_setup(f, se->opaque, errp); if (ret < 0) { + error_prepend(errp, "Load state of device %s failed: ", + se->idstr); qemu_file_set_error(f, ret); - error_report("Load state of device %s failed", se->idstr); return ret; } } @@ -2968,7 +2970,8 @@ int qemu_loadvm_state(QEMUFile *f) return ret; } - if (qemu_loadvm_state_setup(f) != 0) { + if (qemu_loadvm_state_setup(f, &local_err) != 0) { + error_report_err(local_err); return -EINVAL; } |