ueventd: Fix creation of VFIO dev nodes
VFIO nodes, both the container (`vfio`) node and group (numbered)
nodes, should be located in `/dev/vfio`. This change prevents
ueventd from flattening that structure.
Test: Bind a device to VFIO driver to create a VFIO group
Change-Id: I635e9febe6bb52718df263e735479f361eacad4c
diff --git a/init/devices.cpp b/init/devices.cpp
index d29ffd6..7c23492 100644
--- a/init/devices.cpp
+++ b/init/devices.cpp
@@ -568,6 +568,8 @@
return;
} else if (uevent.subsystem == "misc" && StartsWith(uevent.device_name, "dm-user/")) {
devpath = "/dev/dm-user/" + uevent.device_name.substr(8);
+ } else if (uevent.subsystem == "misc" && uevent.device_name == "vfio/vfio") {
+ devpath = "/dev/" + uevent.device_name;
} else {
devpath = "/dev/" + Basename(uevent.path);
}
diff --git a/rootdir/ueventd.rc b/rootdir/ueventd.rc
index 0b7ffb8..60dcc2a 100644
--- a/rootdir/ueventd.rc
+++ b/rootdir/ueventd.rc
@@ -23,6 +23,11 @@
subsystem dma_heap
devname uevent_devpath
dirname /dev/dma_heap
+
+subsystem vfio
+ devname uevent_devpath
+ dirname /dev/vfio
+
# ueventd can only set permissions on device nodes and their associated
# sysfs attributes, not on arbitrary paths.
#
@@ -43,6 +48,7 @@
/dev/binder 0666 root root
/dev/hwbinder 0666 root root
/dev/vndbinder 0666 root root
+/dev/vfio/* 0666 root root
/dev/pmsg0 0222 root log
/dev/dma_heap/system 0444 system system