Merge "Add the standard cpuset nodes"
diff --git a/microdroid/init.rc b/microdroid/init.rc
index 36cddbb..614a5ed 100644
--- a/microdroid/init.rc
+++ b/microdroid/init.rc
@@ -48,6 +48,34 @@
chmod 0666 /dev/binderfs/binder
chmod 0666 /dev/binderfs/vndbinder
+ # Prepare cpusets that are pre-defined by Android. Inside Microdroid, these however don't mean
+ # much because the mapping from vCPUs to physical CPUs are quite flexible; a VM can be started
+ # with any number of vCPUs and we in general can't be sure that vCPU N is a big core or a little
+ # core. These nodes are provided just to satisfy the code which puts a PID to a specific cpuset.
+ mkdir /dev/cpuset/foreground
+ copy /dev/cpuset/cpus /dev/cpuset/foreground/cpus
+ copy /dev/cpuset/mems /dev/cpuset/foreground/mems
+ mkdir /dev/cpuset/background
+ copy /dev/cpuset/cpus /dev/cpuset/background/cpus
+ copy /dev/cpuset/mems /dev/cpuset/background/mems
+ mkdir /dev/cpuset/system-background
+ copy /dev/cpuset/cpus /dev/cpuset/system-background/cpus
+ copy /dev/cpuset/mems /dev/cpuset/system-background/mems
+
+ chown system system /dev/cpuset
+ chown system system /dev/cpuset/foreground
+ chown system system /dev/cpuset/background
+ chown system system /dev/cpuset/system-background
+ chown system system /dev/cpuset/tasks
+ chown system system /dev/cpuset/foreground/tasks
+ chown system system /dev/cpuset/background/tasks
+ chown system system /dev/cpuset/system-background/tasks
+
+ chmod 0664 /dev/cpuset/tasks
+ chmod 0664 /dev/cpuset/foreground/tasks
+ chmod 0664 /dev/cpuset/background/tasks
+ chmod 0664 /dev/cpuset/system-background/tasks
+
# Start logd before any other services run to ensure we capture all of their logs.
start logd