[meta-ti] [master/thud][PATCH v2 3/3] jailhouse: use ramfs for linux-demo

[Nikhil Devshatwar]

On 20/08/19 11:41 PM, Jacob Stiffler wrote:
> * Configure the linux-demo to use a ramfs for the linux inmate.
> * Using JH_RAMFS_IMAGE, this can be set in some global conf.
> 
> Signed-off-by: Jacob Stiffler <j-stiffler at ti.com>

Tested-by: Nikhil Devshatwar <nikhil.nd at ti.com>

I manually built the core-image-minimal in cpio format with a bbappend of my own.
How is this supposed to be built automatically?

Can you add a depends variable so that the build kicks automatically?

Nikhil D

> ---
>   recipes-kernel/jailhouse/jailhouse_git.bb | 21 +++++++++++++++++----
>   1 file changed, 17 insertions(+), 4 deletions(-)
> 
> diff --git a/recipes-kernel/jailhouse/jailhouse_git.bb b/recipes-kernel/jailhouse/jailhouse_git.bb
> index 5d572d0..ba6772f 100644
> --- a/recipes-kernel/jailhouse/jailhouse_git.bb
> +++ b/recipes-kernel/jailhouse/jailhouse_git.bb
> @@ -58,8 +58,10 @@ JH_SYSCONFIG_CELL ?= ""
>   JH_SYSCONFIG_CELL_am65xx ?= "k3-am654-idk.cell"
>   JH_SYSCONFIG_CELL_j7-evm ?= "k3-j721e-evm.cell"
>   
> +JH_RAMFS_IMAGE ?= "core-image-minimal"
> +
>   JH_CMDLINE ?= ""
> -JH_CMDLINE_k3 ?= "console=ttyS1,115200n8 root=/dev/mmcblk0p2 rw rootfstype=ext4 rootwait"
> +JH_CMDLINE_k3 ?= "console=ttyS1,115200n8"
>   
>   do_configure() {
>   	if [ -d ${STAGING_DIR_HOST}/${CELLCONF_DIR} ];
> @@ -101,6 +103,16 @@ do_install() {
>   	install -m 0644 ${B}/inmates/demos/${JH_ARCH}/*.bin ${D}${INMATES_DIR}
>   
>   	install -d ${D}/boot
> +	if [ -n "${JH_RAMFS_IMAGE}" ]
> +	then
> +		if [ -f ${DEPLOY_DIR_IMAGE}/${JH_RAMFS_IMAGE}-${MACHINE}.cpio ]
> +		then
> +			install -m 0644 ${DEPLOY_DIR_IMAGE}/${JH_RAMFS_IMAGE}-${MACHINE}.cpio ${D}/boot
> +		else
> +			bbwarn "Could find find JH_RAMFS_IMAGE (${JH_RAMFS_IMAGE}-${MACHINE}.cpio)!"
> +			bbwarn "Please make sure that \"cpio\" is in IMAGE_FSTYPES."
> +		fi
> +	fi
>   
>   	if [ -n "${JH_INMATE_DTB}" -a -n "${JH_LINUX_DEMO_CELL}" ]; then
>   		cd ${TOOLS_SRC_DIR}
> @@ -110,6 +122,7 @@ do_install() {
>   		./jailhouse-cell-linux -w ${D}${JH_DATADIR}/${JH_INMATE_DTB} \
>   			-a ${JH_ARCH} -c "${JH_CMDLINE}" \
>   			-d ../configs/${JH_ARCH}/dts/${JH_INMATE_DTB} \
> +			-i ${D}/boot/${JH_RAMFS_IMAGE}-${MACHINE}.cpio \
>   			${D}${CELL_DIR}/${JH_LINUX_DEMO_CELL} \
>   			${DEPLOY_DIR_IMAGE}/Image \
>   			| tr -cd '\11\12\15\40-\176' \
> @@ -143,9 +156,9 @@ CELLS = ""
>   
>   python __anonymous () {
>       d.appendVarFlag('do_install', 'depends', ' virtual/kernel:do_deploy')
> -    initrd = d.getVar('INITRAMFS_IMAGE', True)
> -    if initrd:
> -        d.appendVarFlag('do_install', 'depends', ' ${INITRAMFS_IMAGE}:do_image_complete')
> +    ramfs = d.getVar('JH_RAMFS_IMAGE', True)
> +    if ramfs:
> +        d.appendVarFlag('do_install', 'depends', ' ${JH_RAMFS_IMAGE}:do_image_complete')
>   
>       # Setup DEPENDS and RDEPENDS to included cells
>       cells = d.getVar('CELLS', True) or ""
>