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qapi: Add VFIO devices migration stats in Migration stats

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Added amount of bytes transferred to the VM at destination by all VFIO
devices

Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
This commit is contained in:
Kirti Wankhede 2020-10-26 15:06:27 +05:30 • committed by Alex Williamson
parent a22651053b
commit 3710586caa
6 changed files with 71 additions and 0 deletions
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9
hw/vfio/migration.c
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@ -45,6 +45,8 @@
#define VFIO_MIG_FLAG_DEV_SETUP_STATE (0xffffffffef100003ULL)
#define VFIO_MIG_FLAG_DEV_DATA_STATE (0xffffffffef100004ULL)
static int64_t bytes_transferred;
static inline int vfio_mig_access(VFIODevice *vbasedev, void *val, int count,
off_t off, bool iswrite)
{
@ -255,6 +257,7 @@ static int vfio_save_buffer(QEMUFile *f, VFIODevice *vbasedev, uint64_t *size)
*size = data_size;
}
bytes_transferred += data_size;
return ret;
}
@ -785,6 +788,7 @@ static void vfio_migration_state_notifier(Notifier *notifier, void *data)
case MIGRATION_STATUS_CANCELLING:
case MIGRATION_STATUS_CANCELLED:
case MIGRATION_STATUS_FAILED:
bytes_transferred = 0;
ret = vfio_migration_set_state(vbasedev,
~(VFIO_DEVICE_STATE_SAVING | VFIO_DEVICE_STATE_RESUMING),
VFIO_DEVICE_STATE_RUNNING);
@ -866,6 +870,11 @@ err:
/* ---------------------------------------------------------------------- */
int64_t vfio_mig_bytes_transferred(void)
{
return bytes_transferred;
}
int vfio_migration_probe(VFIODevice *vbasedev, Error **errp)
{
VFIOContainer *container = vbasedev->group->container;