qemu-system-s390: add basic support, only virtio-net does not work as expected.

4 files changed, 82 insertions, 1 deletions

diff --git a/target/s390/Makefile b/target/s390/Makefile
index 03afae8f0..93373aaa8 100644
--- a/target/s390/Makefile
+++ b/target/s390/Makefile
@@ -5,3 +5,64 @@ include $(ADK_TOPDIR)/rules.mk
 include $(ADK_TOPDIR)/mk/kernel-build.mk
 include $(ADK_TOPDIR)/mk/image.mk
 
+KERNEL:=$(LINUX_DIR)/vmlinux
+
+QEMU_ARGS:=-monitor null -M s390-ccw-virtio-2.4
+QEMU_ARGS+=${ADK_QEMU_ARGS}
+QEMU_ARGS+=-netdev user,id=eth0 -device virtio-net-ccw,netdev=eth0
+
+# target helper text
+ifeq ($(ADK_TARGET_FS),archive)
+targethelp:
+	@echo "The RootFS tarball is: $(FW_DIR)/$(ROOTFSTARBALL)"
+ifeq ($(ADK_TARGET_QEMU),y)
+	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
+	@echo "Use following command to create a QEMU Image:"
+	@echo "./scripts/create.sh qemu-${ADK_TARGET_CPU_ARCH}.img $(FW_DIR)/$(ROOTFSTARBALL)"
+	@echo "Start qemu with following options:"
+	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL) qemu-${ADK_TARGET_CPU_ARCH}.img'
+endif
+endif
+ifeq ($(ADK_TARGET_FS),initramfs)
+targethelp:
+	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
+	@echo 'The initramfs image is: ${FW_DIR}/${INITRAMFS}'
+ifeq ($(ADK_TARGET_QEMU),y)
+	@echo "Start qemu with following command line:"
+	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL) -initrd ${FW_DIR}/${INITRAMFS}'
+endif
+endif
+ifeq ($(ADK_TARGET_FS),initramfsarchive)
+targethelp:
+	@echo 'The kernel file is: $(FW_DIR)/${TARGET_KERNEL}'
+	@echo "The RootFS tarball is: $(FW_DIR)/$(ROOTFSUSERTARBALL)"
+endif
+ifeq ($(ADK_TARGET_FS),initramfspiggyback)
+targethelp:
+	@echo 'The kernel+initramfs file is: $(FW_DIR)/${TARGET_KERNEL}'
+ifeq ($(ADK_TARGET_QEMU),y)
+	@echo "Start qemu with following command line:"
+	@echo 'qemu-system-${ADK_TARGET_CPU_ARCH} ${QEMU_ARGS} -kernel $(FW_DIR)/$(TARGET_KERNEL)'
+endif
+endif
+
+# image creation and kernel install
+kernel-strip:
+	$(TARGET_CROSS)objcopy $(OSTRIP) -S $(KERNEL) $(BUILD_DIR)/$(TARGET_KERNEL)
+
+kernel-install: kernel-strip
+	@cp $(BUILD_DIR)/$(TARGET_KERNEL) $(FW_DIR)/${TARGET_KERNEL}
+
+# filesystem specific targets
+ifeq ($(ADK_TARGET_FS),archive)
+imageinstall: $(FW_DIR)/$(ROOTFSTARBALL) targethelp
+endif
+ifeq ($(ADK_TARGET_FS),initramfs)
+imageinstall: kernel-install $(FW_DIR)/$(INITRAMFS) targethelp
+endif
+ifeq ($(ADK_TARGET_FS),initramfsarchive)
+imageinstall: kernel-install $(FW_DIR)/$(ROOTFSUSERTARBALL) targethelp
+endif
+ifeq ($(ADK_TARGET_FS),initramfspiggyback)
+imageinstall: createinitramfs targethelp
+endif
diff --git a/target/s390/kernel/qemu-s390 b/target/s390/kernel/qemu-s390
new file mode 100644
index 000000000..00a86e58b
--- /dev/null
+++ b/target/s390/kernel/qemu-s390
@@ -0,0 +1,13 @@
+CONFIG_S390=y
+CONFIG_MARCH_Z900=y
+CONFIG_TN3270=y
+CONFIG_TN3270_TTY=y
+CONFIG_TN3270_FS=m
+CONFIG_TN3270_CONSOLE=y
+CONFIG_TN3215=y
+CONFIG_TN3215_CONSOLE=y
+CONFIG_CCW_CONSOLE=y
+CONFIG_SCLP_TTY=y
+CONFIG_SCLP_CONSOLE=y
+CONFIG_SCLP_VT220_TTY=y
+CONFIG_SCLP_VT220_CONSOLE=y
diff --git a/target/s390/systems/qemu-s390 b/target/s390/systems/qemu-s390
new file mode 100644
index 000000000..c04dfad31
--- /dev/null
+++ b/target/s390/systems/qemu-s390
@@ -0,0 +1,7 @@
+config ADK_TARGET_SYSTEM_QEMU_S390
+	bool "Qemu Emulator"
+	select ADK_CPU_Z900
+	select ADK_TARGET_QEMU
+	help
+	  Support for Qemu Emulator S/390 architecture.
+
diff --git a/target/s390/systems/toolchain-s390 b/target/s390/systems/toolchain-s390
index e1b520a83..d441dfd94 100644
--- a/target/s390/systems/toolchain-s390
+++ b/target/s390/systems/toolchain-s390
@@ -1,6 +1,6 @@
 config ADK_TARGET_SYSTEM_TOOLCHAIN_S390
 	bool "Toolchain only"
-	select ADK_CPU_S390
+	select ADK_CPU_Z900
 	select ADK_TARGET_TOOLCHAIN
 	select ADK_TARGET_PACKAGE_TXZ
 	help