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Message-ID: <20241025090143.64472-5-liulongfang@huawei.com>
Date: Fri, 25 Oct 2024 17:01:43 +0800
From: Longfang Liu <liulongfang@...wei.com>
To: <alex.williamson@...hat.com>, <jgg@...dia.com>,
<shameerali.kolothum.thodi@...wei.com>, <jonathan.cameron@...wei.com>
CC: <kvm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linuxarm@...neuler.org>, <liulongfang@...wei.com>
Subject: [PATCH v11 4/4] Documentation: add debugfs description for hisi migration
Add a debugfs document description file to help users understand
how to use the hisilicon accelerator live migration driver's
debugfs.
Update the file paths that need to be maintained in MAINTAINERS
Signed-off-by: Longfang Liu <liulongfang@...wei.com>
Reviewed-by: Shameer Kolothum <shameerali.kolothum.thodi@...wei.com>
---
.../ABI/testing/debugfs-hisi-migration | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 Documentation/ABI/testing/debugfs-hisi-migration
diff --git a/Documentation/ABI/testing/debugfs-hisi-migration b/Documentation/ABI/testing/debugfs-hisi-migration
new file mode 100644
index 000000000000..89e4fde5ec6a
--- /dev/null
+++ b/Documentation/ABI/testing/debugfs-hisi-migration
@@ -0,0 +1,25 @@
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/dev_data
+Date: Oct 2024
+KernelVersion: 6.12
+Contact: Longfang Liu <liulongfang@...wei.com>
+Description: Read the configuration data and some status data
+ required for device live migration. These data include device
+ status data, queue configuration data, some task configuration
+ data and device attribute data. The output format of the data
+ is defined by the live migration driver.
+
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/migf_data
+Date: Oct 2024
+KernelVersion: 6.12
+Contact: Longfang Liu <liulongfang@...wei.com>
+Description: Read the data from the last completed live migration.
+ This data includes the same device status data as in "dev_data".
+ The migf_data is the dev_data that is migrated.
+
+What: /sys/kernel/debug/vfio/<device>/migration/hisi_acc/cmd_state
+Date: Oct 2024
+KernelVersion: 6.12
+Contact: Longfang Liu <liulongfang@...wei.com>
+Description: Used to obtain the device command sending and receiving
+ channel status. Returns failure or success logs based on the
+ results.
--
2.24.0
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