#
# \brief  Virtual-machine monitor demo
# \author Stefan Kalkowski
# \date   2015-06-25
#

assert_spec hw

if { ![have_board imx7d_sabre] && ![have_board imx8q_evk] &&
     ![have_board virt_qemu_arm_v7a] &&
     ![have_board virt_qemu_arm_v8a]} {
	puts "Run script is not supported on this platform"
	exit 0
}

create_boot_directory
import_from_depot [depot_user]/src/[base_src] \
                  [depot_user]/src/init \
                  [depot_user]/src/libc \
                  [depot_user]/src/log_terminal \
                  [depot_user]/src/nic_router \
                  [depot_user]/src/terminal_crosslink \
                  [depot_user]/src/vfs \
                  [depot_user]/src/vfs_block \
                  [depot_user]/src/vmm

build { test/terminal_expect_send }

proc vmm_config { } {

	# for early printk add bootarg: earlycon=pl011,0x9000000

	if {[have_spec arm]} {
		return {
		<config kernel_rom="linux" initrd_rom="initrd" ram_size="128M"
		        cpu_count="1" cpu_type="arm,cortex-a15" gic_version="2"
		        bootargs="rdinit=/bin/sh ip=dhcp console=hvc0">
			<virtio_device name="hvc0" type="console"/>
			<virtio_device name="eth0" type="net"/>
			<virtio_device name="blk0" type="block"/>
		</config>}
	}

	if {[have_spec arm_64]} {
		return {
		<config kernel_rom="linux" initrd_rom="initrd" ram_size="128M"
		        cpu_count="4" cpu_type="arm,cortex-a53" gic_version="3"
		        bootargs="rdinit=/bin/sh ip=dhcp console=hvc0">
			<virtio_device name="hvc0" type="console"/>
			<virtio_device name="eth0" type="net"/>
			<virtio_device name="blk0" type="block"/>
		</config>}
	}

	return unavailable
}

install_config {
<config verbose="yes" prio_levels="2">
	<parent-provides>
		<service name="ROM"/>
		<service name="IRQ"/>
		<service name="IO_MEM"/>
		<service name="PD"/>
		<service name="RM"/>
		<service name="CPU"/>
		<service name="LOG"/>
		<service name="VM"/>
	</parent-provides>
	<default-route>
		<any-service><parent/><any-child/></any-service>
	</default-route>
	<default caps="100"/>

	<start name="timer">
		<resource name="RAM" quantum="1M"/>
		<provides><service name="Timer"/></provides>
	</start>

	<start name="nic_drv">
		<binary name="nic_router" />
		<resource name="RAM" quantum="8M"/>
		<provides>
			<service name="Nic"/>
			<service name="Uplink"/>
		</provides>
		<config>
			<default-policy domain="default"/>
			<domain name="default" interface="10.0.1.1/24">
				<dhcp-server ip_first="10.0.1.2" ip_last="10.0.1.2" />
			</domain>
		</config>
	</start>

	<start name="vfs_block">
		<resource name="RAM" quantum="2M"/>
		<provides> <service name="Block"/> </provides>
		<config>
			<vfs> <rom name="block.img"/> </vfs>
			<default-policy file="/block.img" block_size="512"/>
		</config>
		<route>
			<any-service> <parent/> </any-service>
		</route>
	</start>

	<start name="log_terminal">
		<resource name="RAM" quantum="2M"/>
		<provides> <service name="Terminal"/> </provides>
	</start>

	<start name="terminal_crosslink">
		<resource name="RAM" quantum="1M"/>
		<provides> <service name="Terminal"/> </provides>
	</start>

	<start name="vmm" caps="200" priority="-1">
		<resource name="RAM" quantum="256M"/>
		<route>
			<service name="Terminal" label="earlycon"> <child name="log_terminal"/> </service>
			<service name="Terminal"> <child name="terminal_crosslink"/> </service>
			<service name="Nic"> <child name="nic_drv"/> </service>
			<any-service><parent/><any-child/></any-service>
		</route>} [vmm_config] {
	</start>

	<start name="vm">
		<binary name="test-terminal_expect_send"/>
		<resource name="RAM" quantum="1M"/>
		<config expect="/ #" send="mount /dev/vda /root; cp -r /etc /root; ls /root/etc; umount /root" verbose="yes"/>
		<route>
			<service name="Terminal"> <child name="terminal_crosslink"/> </service>
			<any-service><parent/><any-child/></any-service>
		</route>
	</start>
</config>
}


if { [have_spec arm] } {

	if {![file exists bin/linux]} {
		puts "Download linux kernel ..."
			exec >& /dev/null wget -c -O bin/linux http://genode.org/files/release-22.11/linux-virtio-arm32
	}

	if {![file exists bin/initrd]} {
		puts "Download initramfs ..."
			exec >& /dev/null wget -c -O bin/initrd http://genode.org/files/release-20.05/initrd-arm32
	}

#
# To build the linux kernel from scratch, do the following steps:
#
# wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.14.21.tar.xz
# tar -xJf linux-5.14.21.tar.xz
# cd linux-5.14.21
# wget -O .config https://raw.githubusercontent.com/skalk/linux/66fb717e92b47512d8f686860a2c5e7329d01691/arch/arm/configs/virtio_only_defconfig
# make ARCH=arm CROSS_COMPILE=/usr/local/genode/tool/current/bin/genode-arm-
#
# copy arch/arm/boot/Image to your build directory in 'bin/linux'
#
#
# To construct the initrd do the following:
# * get and install gcc from bootlin:
#      (https://toolchains.bootlin.com/downloads/releases/toolchains/armv7-eabihf/tarballs/)
# * build busybox
#      wget https://busybox.net/downloads/busybox-1.31.1.tar.bz2
#      tar xjf busybox-1.31.1.tar.bz2
#      mkdir build-busybox-aarch32
#      cd busybox-1.31.1
#      make O=../build-busybox-aarch32 defconfig
#      make O=../build-busybox-aarch32 menuconfig
#
#      [*] Setting ->  Build static binary (no shared libs)
#
#      cd ../build-busybox-aarch32
#      make CROSS_COMPILE=/opt/armv7-eabihf--uclibc--stable-2020.02-1/bin/arm-buildroot-linux-uclibcgnueabihf- install -j6
# * create ramdisk
#      cd _install
#      find . | cpio -H newc -o | gzip > ../initrd
#
}

if { [have_spec arm_64] } {

	if {![file exists bin/linux]} {
		puts "Download linux kernel ..."
			exec >& /dev/null wget -c -O bin/linux http://genode.org/files/release-22.11/linux-virtio-arm64
	}

	if {![file exists bin/initrd]} {
		puts "Download initramfs ..."
			exec >& /dev/null wget -c -O bin/initrd http://genode.org/files/release-20.02/initrd-arm64
	}

#
# To build the linux kernel from scratch, do the following steps:
#
# wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.14.21.tar.xz
# tar -xJf linux-5.14.21.tar.xz
# cd linux-5.14.21
# wget -O .config https://raw.githubusercontent.com/skalk/linux/66fb717e92b47512d8f686860a2c5e7329d01691/arch/arm64/configs/virtio_only_defconfig
# make ARCH=arm64 CROSS_COMPILE=/usr/local/genode/tool/current/bin/genode-aarch64-
#
# copy arch/arm64/boot/Image to your build directory in 'bin/linux'
#
#
# To construct the initrd do the following:
# * get and install gcc from linaro
#      (https://releases.linaro.org/components/toolchain/binaries/latest-7/)
# * build busybox
#      wget https://busybox.net/downloads/busybox-1.29.3.tar.bz2
#      tar xjf busybox-1.29.3.tar.bz2
#      mkdir build-busybox-aarch64
#      cd busybox-1.29.3
#      make O=../build-busybox-aarch64 defconfig
#      make O=../build-busybox-aarch64 menuconfig
#
#      [*] Setting ->  Build static binary (no shared libs)
#
#      cd ../build-busybox-aarch64
#      make CROSS_COMPILE=/usr/local/gcc-linaro/bin/aarch64-linux-gnu- install -j6
# * create ramdisk
#      cd _install
#      find . | cpio -H newc -o | gzip > ../initrd
}

catch { exec [installed_command dd] if=/dev/zero of=bin/block.img bs=1M count=0 seek=64 }
exec [installed_command mkfs.vfat] bin/block.img

build_boot_image {
	test-terminal_expect_send
	linux
	initrd
	block.img
}

#
# Execute test case
#
append qemu_args " -nographic "

run_genode_until "\[init -> vm\] .*resolv.conf.*" 220
exec rm bin/linux bin/initrd bin/block.img