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

assert_spec hw

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

set build_components {
	core init timer
	server/terminal_crosslink
	test/terminal_expect_send
	server/log_terminal
	server/nic_router
	server/vmm
}
build $build_components
create_boot_directory

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"/> </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="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>
	</start>
	<start name="vm">
		<binary name="test-terminal_expect_send"/>
		<resource name="RAM" quantum="1M"/>
		<config expect="/ #" send="ls" 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-15.02/arm_vt/linux
	}

	if {![file exists bin/dtb]} {
		puts "Download device tree blob ..."
			exec >& /dev/null wget -c -O bin/dtb http://genode.org/files/release-15.02/arm_vt/dtb
	}

#
# This test uses a Linux kernel built from unmodified vanilla kernel sources
# but using a slightly simplified kernel configuration, as well as device tree
# for a minimal Versatile Express Cortex A15 like emulated board.
#
# The used sources, including the modified device tree and configuration file
# can be found in the following git repository/branch:
#
#   https://github.com/skalk/linux/tree/vexpress-vt
#
# To compile the kernel and device tree blob used in this script, do the
# following steps:
#
# ! git checkout https://github.com/skalk/linux.git
# ! cd linux
# ! git checkout origin/vexpress-vt
# ! make ARCH=arm CROSS_COMPILE=<cross_compiler_prefix> vexpress_config
# ! make ARCH=arm CROSS_COMPILE=<cross_compiler_prefix> -j8 Image
# ! make ARCH=arm CROSS_COMPILE=<cross_compiler_prefix> vexpress-v2p-ca15-tc1.dtb
#
}

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-20.02/linux-arm64
	}

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

	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 obtain the linux kernel, do the following steps:
# 
# wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.19.53.tar.xz
# 
# tar -xJf linux-4.19.53.tar.xz
# cd linux-4.19.53
# 
# make O=../build-linux-aarch64 ARCH=arm64 CROSS_COMPILE=/usr/local/genode/tool/current/bin/genode-aarch64- defconfig
# make O=../build-linux-aarch64 ARCH=arm64 CROSS_COMPILE=/usr/local/genode/tool/current/bin/genode-aarch64- -j32
# 
# copy ../build-linux-aarch64/arch/arm64/boot/Image to your build directory in 'bin/linux'
#
#
# To get the dtb (device-tree-binary), you have to compile the file:
# repos/os/src/server/vmm/spec/arm_v8/virt.dts with the dtc compiler:
# dtc repos/os/src/server/vmm/spec/arm_v8/virt.dts > bin/dtb
#
#
# 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
}

set boot_modules {
	core ld.lib.so init
	timer
	terminal_crosslink
	test-terminal_expect_send
	nic_router
	log_terminal
	vmm
	linux
	dtb
}
append_if [have_spec arm_64] boot_modules initrd
build_boot_image $boot_modules

#
# Execute test case
#
run_genode_until "\[init -> vm\] .*sbin.*" 220
exec rm bin/linux bin/dtb