lkml.org 
[lkml]   [2022]   [Dec]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v5 5/5] vfio: update live migration device status
Date
migration debugfs needs to perform debug operations based on the
status of the current device. If the device is not loaded or has
stopped, debugfs does not allow operations.

so, after the live migration function is executed and the device is
turned off, the device no longer needs to be accessed. At this time,
the status of the device needs to be set to stop.

Signed-off-by: Longfang Liu <liulongfang@huawei.com>
---
drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c | 3 +++
drivers/vfio/pci/mlx5/main.c | 3 +++
2 files changed, 6 insertions(+)

diff --git a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
index 186a44091b59..3e58d635afb6 100644
--- a/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
+++ b/drivers/vfio/pci/hisilicon/hisi_acc_vfio_pci.c
@@ -1601,6 +1601,9 @@ static void hisi_acc_vfio_pci_close_device(struct vfio_device *core_vdev)
struct hisi_acc_vf_core_device *hisi_acc_vdev = hisi_acc_get_vf_dev(core_vdev);
struct hisi_qm *vf_qm = &hisi_acc_vdev->vf_qm;

+ if (core_vdev->mig_ops)
+ hisi_acc_vdev->mig_state = VFIO_DEVICE_STATE_STOP;
+
iounmap(vf_qm->io_base);
vfio_pci_core_close_device(core_vdev);
}
diff --git a/drivers/vfio/pci/mlx5/main.c b/drivers/vfio/pci/mlx5/main.c
index 031ac8cc215d..64b2fe58355a 100644
--- a/drivers/vfio/pci/mlx5/main.c
+++ b/drivers/vfio/pci/mlx5/main.c
@@ -1092,6 +1092,9 @@ static void mlx5vf_pci_close_device(struct vfio_device *core_vdev)
struct mlx5vf_pci_core_device *mvdev = container_of(
core_vdev, struct mlx5vf_pci_core_device, core_device.vdev);

+ if (mvdev->migrate_cap)
+ mvdev->mig_state = VFIO_DEVICE_STATE_STOP;
+
mlx5vf_cmd_close_migratable(mvdev);
vfio_pci_core_close_device(core_vdev);
}
--
2.24.0
\
 
 \ /
  Last update: 2022-12-17 07:37    [W:0.080 / U:0.976 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site