updateInterface: enable hot-add nic on arm64

For now, update interface in agent will fail when hot-add nic to a running containers on arm64 as rescan pci bus will occur between uf and bf of shpc hotplug interrupt handling. Another problem is that the rootBusPath will be "/devices/platform/4010000000.pcie/pci0000:00" on arm64. To enable hot-add nic on arm64, rootBusPath should be changed here and shpc hotplug should be disabled in guest kernel. This patch just change rootBusPath. Fixes: #544 Signed-off-by: Jianyong Wu <[email protected]>
kata-containers · May 15, 2019 · 701344e · 701344e
1 parent f1fd336
commit 701344e
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Showing 5 changed files with 43 additions and 2 deletions.
diff --git a/device.go b/device.go
@@ -35,8 +35,7 @@ const (
 )
 
 const (
-	rootBusPath = "/devices/pci0000:00"
-	pciBusMode  = 0220
+	pciBusMode = 0220
 )
 
 var (

diff --git a/device_amd64.go b/device_amd64.go
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2019 ARM Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+const (
+	rootBusPath = "/devices/pci0000:00"
+)
diff --git a/device_arm64.go b/device_arm64.go
@@ -0,0 +1,9 @@
+//
+// Copyright (c) 2019 ARM Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+const rootBusPath = "/devices/platform/4010000000.pcie/pci0000:00"
diff --git a/device_ppc64le.go b/device_ppc64le.go
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2019 ARM Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+const (
+	rootBusPath = "/devices/pci0000:00"
+)
diff --git a/device_s390x.go b/device_s390x.go
@@ -0,0 +1,11 @@
+//
+// Copyright (c) 2019 ARM Limited
+//
+// SPDX-License-Identifier: Apache-2.0
+//
+
+package main
+
+const (
+	rootBusPath = "/devices/pci0000:00"
+)