808642a2f6
Currently, VFIO bytes_transferred is not reset properly:
1. bytes_transferred is not reset after a VM snapshot (so a migration
following a snapshot will report incorrect value).
2. bytes_transferred is a single counter for all VFIO devices, however
upon migration failure it is reset multiple times, by each VFIO
device.
Fix it by introducing a new function vfio_reset_bytes_transferred() and
calling it during migration and snapshot start.
Remove existing bytes_transferred reset in VFIO migration state
notifier, which is not needed anymore.
Fixes: 3710586caa5d ("qapi: Add VFIO devices migration stats in Migration stats")
Signed-off-by: Avihai Horon <avihaih@nvidia.com>
Reviewed-by: Cédric Le Goater <clg@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Cédric Le Goater <clg@redhat.com>
39 lines
775 B
C
39 lines
775 B
C
/*
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* QEMU live migration - functions that need to be compiled target-specific
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*
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* This work is licensed under the terms of the GNU GPL, version 2
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* or (at your option) any later version.
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*/
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#include "qemu/osdep.h"
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#include "qapi/qapi-types-migration.h"
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#include "migration.h"
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#include CONFIG_DEVICES
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#ifdef CONFIG_VFIO
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#include "hw/vfio/vfio-common.h"
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#endif
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#ifdef CONFIG_VFIO
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void populate_vfio_info(MigrationInfo *info)
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{
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if (vfio_mig_active()) {
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info->vfio = g_malloc0(sizeof(*info->vfio));
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info->vfio->transferred = vfio_mig_bytes_transferred();
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}
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}
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void reset_vfio_bytes_transferred(void)
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{
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vfio_reset_bytes_transferred();
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}
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#else
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void populate_vfio_info(MigrationInfo *info)
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{
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}
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void reset_vfio_bytes_transferred(void)
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{
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}
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#endif
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