fix(CSR): initialize [m|h|s]context to 0 (#4915)

ready-to-run

@@ -1 +1 @@
-Subproject commit dec66a09340ccf720063601dddb856b246a91285
+Subproject commit 2ea9d84709fdafe27c421d10d7e065c9e0a1b20f

src/main/scala/xiangshan/backend/fu/NewCSR/MachineLevel.scala

@@ -756,7 +756,7 @@ object OPTYPE extends CSREnum with WARLApply {
 
 class McontextBundle extends CSRBundle {
   override val len = 14
-  val HCONTEXT = RW(13, 0)
+  val HCONTEXT = RW(13, 0).withReset(0.U)
 }
 
 trait HasOfFromPerfCntBundle { self: CSRModule[_] =>

src/main/scala/xiangshan/backend/fu/NewCSR/SupervisorLevel.scala

@@ -253,7 +253,7 @@ class SatpBundle extends CSRBundle {
 
 class ScontextBundle extends CSRBundle {
   override val len = 32
-  val ALL = RW(31, 0)
+  val ALL = RW(31, 0).withReset(0.U)
 }
 
 class SEnvCfg extends EnvCfg