[PATCH v17 0/2] add debugfs to migration driver

From: Longfang Liu
Date: Fri Oct 13 2023 - 05:07:43 EST


Add a debugfs function to the migration driver in VFIO to provide
a step-by-step debugfs information for the migration driver.

Changes v16 -> v17
Add separate VFIO_DEBUGFS Kconfig entries.

Changes v15 -> v16
Update the calling order of functions to maintain symmetry

Changes v14 -> v15
Update the output status value of live migration.

Changes v13 -> v14
Split the patchset and keep the vfio debugfs frame.

Changes v12 -> v13
Solve the problem of open and close competition to debugfs.

Changes v11 -> v12
Update loading conditions of vfio debugfs.

Changes v10 -> v11
Delete the device restore function in debugfs.

Changes v9 -> v10
Update the debugfs file of the live migration driver.

Changes v8 -> v9
Update the debugfs directory structure of vfio.

Changes v7 -> v8
Add support for platform devices.

Changes v6 -> v7
Fix some code style issues.

Changes v5 -> v6
Control the creation of debugfs through the CONFIG_DEBUG_FS.

Changes v4 -> v5
Remove the newly added vfio_migration_ops and use seq_printf
to optimize the implementation of debugfs.

Changes v3 -> v4
Change the migration_debug_operate interface to debug_root file.

Changes v2 -> v3
Extend the debugfs function from hisilicon device to vfio.

Changes v1 -> v2
Change the registration method of root_debugfs to register
with module initialization.

Longfang Liu (2):
vfio/migration: Add debugfs to live migration driver
Documentation: add debugfs description for vfio

Documentation/ABI/testing/debugfs-vfio | 25 +++++++
MAINTAINERS | 1 +
drivers/vfio/Kconfig | 10 +++
drivers/vfio/Makefile | 1 +
drivers/vfio/debugfs.c | 90 ++++++++++++++++++++++++++
drivers/vfio/vfio.h | 14 ++++
drivers/vfio/vfio_main.c | 14 +++-
include/linux/vfio.h | 7 ++
include/uapi/linux/vfio.h | 1 +
9 files changed, 161 insertions(+), 2 deletions(-)
create mode 100644 Documentation/ABI/testing/debugfs-vfio
create mode 100644 drivers/vfio/debugfs.c

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2.24.0