diff --git a/kernel/Cargo.lock b/kernel/Cargo.lock
index 474fce23..9f9bc730 100644
--- a/kernel/Cargo.lock
+++ b/kernel/Cargo.lock
@@ -681,7 +681,7 @@ dependencies = [
 [[package]]
 name = "rvm"
 version = "1.2.0"
-source = "git+https://github.com/rcore-riscv-hypervisor-dev/RVM?rev=fa31039#fa310395b771590df3c6fc354798037c0ae0e9df"
+source = "git+https://github.com/rcore-riscv-hypervisor-dev/RVM?rev=5cde71c#5cde71c7f4c1a691e12adbe542d28b381bc8e383"
 dependencies = [
  "bit-set",
  "bit_field 0.10.1",
@@ -701,7 +701,7 @@ dependencies = [
 [[package]]
 name = "rvm_macros"
 version = "0.1.0"
-source = "git+https://github.com/rcore-riscv-hypervisor-dev/RVM?rev=fa31039#fa310395b771590df3c6fc354798037c0ae0e9df"
+source = "git+https://github.com/rcore-riscv-hypervisor-dev/RVM?rev=5cde71c#5cde71c7f4c1a691e12adbe542d28b381bc8e383"
 dependencies = [
  "quote",
  "syn",
diff --git a/kernel/Cargo.toml b/kernel/Cargo.toml
index 6e9469c4..cab9773b 100644
--- a/kernel/Cargo.toml
+++ b/kernel/Cargo.toml
@@ -77,7 +77,7 @@ virtio-drivers = { git = "https://github.com/rcore-riscv-hypervisor-dev/virtio-d
 volatile = "0.2"
 woke = "0.0.2"
 xmas-elf = "0.7"
-rvm = { git = "https://github.com/rcore-riscv-hypervisor-dev/RVM", rev = "fa31039", optional = true }
+rvm = { git = "https://github.com/rcore-riscv-hypervisor-dev/RVM", rev = "5cde71c", optional = true }
 
 [target.'cfg(target_arch = "x86_64")'.dependencies]
 apic = { git = "https://github.com/rcore-os/apic-rs", rev = "fb86bd7" }
diff --git a/kernel/Makefile b/kernel/Makefile
index 02521062..d3c18a67 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -141,13 +141,13 @@ qemu_opts += \
 	-cpu rv64,x-h=true \
 	-serial mon:stdio \
 	-bios ../tools/opensbi/fw_jump.elf \
-	-m 2G\
+	-m 1G\
 	-kernel $(kernel_img)
 else
 qemu_opts += \
 	-machine virt \
 	-cpu rv64,x-h=true \
-	-m 1G \
+	-m 2G \
 	-serial mon:stdio
 ifeq ($(UART2), on)
 qemu_opts += \
diff --git a/user b/user
index 9251d3d5..b4a7bd80 160000
--- a/user
+++ b/user
@@ -1 +1 @@
-Subproject commit 9251d3d5535d9ceff6d4d36e3f203a190e9f708c
+Subproject commit b4a7bd80a9dd34a9e4fe37fc623f0c33e6e23880