Add initial virtiofs support

kernel/config

@@ -11,10 +11,9 @@ CONFIG_AS_VERSION=24700
 CONFIG_LD_IS_BFD=y
 CONFIG_LD_VERSION=24700
 CONFIG_LLD_VERSION=0
-CONFIG_RUSTC_VERSION=109701
-CONFIG_RUST_IS_AVAILABLE=y
-CONFIG_RUSTC_LLVM_VERSION=220106
-CONFIG_RUSTC_LLVM_MAJOR_VERSION=22
+CONFIG_RUSTC_VERSION=109401
+CONFIG_RUSTC_LLVM_VERSION=210108
+CONFIG_RUSTC_LLVM_MAJOR_VERSION=21
 CONFIG_CC_CAN_LINK=y
 CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
 CONFIG_CC_HAS_ASM_GOTO_TIED_OUTPUT=y
@@ -292,7 +291,6 @@ CONFIG_PERF_EVENTS=y
 # end of Kernel Performance Events And Counters
 
 CONFIG_PROFILING=y
-# CONFIG_RUST is not set
 CONFIG_TRACEPOINTS=y
 
 #
@@ -3204,7 +3202,11 @@ CONFIG_QUOTA_TREE=y
 CONFIG_QFMT_V2=y
 CONFIG_QUOTACTL=y
 CONFIG_AUTOFS_FS=y
-# CONFIG_FUSE_FS is not set
+CONFIG_FUSE_FS=y
+CONFIG_CUSE=y
+CONFIG_VIRTIO_FS=y
+CONFIG_FUSE_PASSTHROUGH=y
+CONFIG_FUSE_IO_URING=y
 CONFIG_OVERLAY_FS=y
 # CONFIG_OVERLAY_FS_REDIRECT_DIR is not set
 CONFIG_OVERLAY_FS_REDIRECT_ALWAYS_FOLLOW=y