[PATCH i-g-t 0/3] tools/vmtb: Parallel multi-VM migration and tests reconfiguration

[Adam Miszczak <adam.miszczak@linux.intel.com>]

This series extends VMTB VF migration validation coverage with parallel
multi-VM migration and reconfigures test variants to auto provisioning.

Patch 1:
Extend BaseTestBusyMigration to migrate multiple VMs concurrently.
Source/destination pairs go from the edges to the center
(VM0->VM(N-1), VM1->VM(N-2), ...).
Save and load use two-phase async operations: all migrations start
first, then each one is polled for completion.
The IGT workload runs on every source VM.
The single-VM (same source and destination VF) flow is kept.
For odd VM counts, the center VM is not migrated.

Patch 2:
Skip double migration tests when the debugfs 'resfix_stoppers' hook
isn't available (KMD no-debug build), instead of failing them.

Patch 3:
Reconfigure the tests setup:
- switch basic and migration test variants to auto resources and
  scheduling provisioning
- drop the 'full' migration variant; busy migration tests
  1xVF and 2xVF config scope by default
- add TestBusyMigrationParallel with 4xVF and 6xVF variants, which
  uses the parallel migration support from patch 1
- remove the manual EQ/PT override in test_2vm_pause_resume, which is
  no longer needed since the driver provides finite defaults
- limit TestVfDriverLoadRemove to 2 VMs to avoid exhausting host
  memory on systems with limited host RAM (<=16GB)

Signed-off-by: Adam Miszczak <adam.miszczak@linux.intel.com>
Cc: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Kamil Konieczny <kamil.konieczny@linux.intel.com>

Adam Miszczak (3):
  tools/vmtb: Support parallel multi-VM busy migration
  tools/vmtb: Skip double migration tests on no-debug config
  tools/vmtb: Reconfigure tests setup

 tools/vmtb/vmm_flows/test_basic.py     |  15 +-
 tools/vmtb/vmm_flows/test_migration.py | 235 ++++++++++++++++---------
 2 files changed, 157 insertions(+), 93 deletions(-)

-- 
2.39.1