sepolicy: Allow lmkd access to psi procfs nodes

Lmkd needs read access to /proc/pressure/memory, proc/pressure/cpu
and proc/pressure/io nodes to read current psi levels.
Lmkd needs write access to /proc/pressure/memory to set psi monitor
triggers.

Bug: 111308141
Test: modified lmkd to use PSI and tested using lmkd_unit_test

Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Merged-In: I9efd60c7fbb89cc08938fa5119b13d794813b52b
Change-Id: I9efd60c7fbb89cc08938fa5119b13d794813b52b
diff --git a/private/compat/26.0/26.0.cil b/private/compat/26.0/26.0.cil
index abd5fc3..1e21719 100644
--- a/private/compat/26.0/26.0.cil
+++ b/private/compat/26.0/26.0.cil
@@ -481,6 +481,9 @@
     proc_panic
     proc_pid_max
     proc_pipe_conf
+    proc_pressure_cpu
+    proc_pressure_io
+    proc_pressure_mem
     proc_random
     proc_sched
     proc_slabinfo
diff --git a/private/compat/27.0/27.0.cil b/private/compat/27.0/27.0.cil
index 8bc2ca6..078d608 100644
--- a/private/compat/27.0/27.0.cil
+++ b/private/compat/27.0/27.0.cil
@@ -1196,6 +1196,9 @@
     proc_panic
     proc_pid_max
     proc_pipe_conf
+    proc_pressure_cpu
+    proc_pressure_io
+    proc_pressure_mem
     proc_random
     proc_sched
     proc_slabinfo
diff --git a/private/compat/28.0/28.0.cil b/private/compat/28.0/28.0.cil
index 18604bc..77c215c 100644
--- a/private/compat/28.0/28.0.cil
+++ b/private/compat/28.0/28.0.cil
@@ -1378,6 +1378,9 @@
 (typeattributeset proc_28_0
   ( proc
     proc_keys
+    proc_pressure_cpu
+    proc_pressure_io
+    proc_pressure_mem
     proc_slabinfo))
 (typeattributeset proc_abi_28_0 (proc_abi))
 (typeattributeset proc_asound_28_0 (proc_asound))
diff --git a/private/genfs_contexts b/private/genfs_contexts
index 9eeb43a..070559f 100644
--- a/private/genfs_contexts
+++ b/private/genfs_contexts
@@ -24,6 +24,9 @@
 genfscon proc /net/xt_qtaguid/ u:object_r:proc_qtaguid_stat:s0
 genfscon proc /cpuinfo u:object_r:proc_cpuinfo:s0
 genfscon proc /pagetypeinfo u:object_r:proc_pagetypeinfo:s0
+genfscon proc /pressure/cpu u:object_r:proc_pressure_cpu:s0
+genfscon proc /pressure/io u:object_r:proc_pressure_io:s0
+genfscon proc /pressure/memory u:object_r:proc_pressure_mem:s0
 genfscon proc /slabinfo u:object_r:proc_slabinfo:s0
 genfscon proc /softirqs u:object_r:proc_timer:s0
 genfscon proc /stat u:object_r:proc_stat:s0