[OE-core] [PATCH v2] boot-directdisk: Allow for EFI-only boot direct disk images

[Darren Hart]

On Fri, 2013-09-13 at 15:12 -0300, Joao Henrique Ferreira de Freitas
wrote:
> From: João Henrique Ferreira de Freitas <joaohf at gmail.com>
> 
> Condition building PCBIOS legacy images on MACHINE_FEATURES containing "pcbios"
> or not containing "efi". This ensures existing BSPs will continue to get the
> old PCBIOS legacy-only images. New BSPs can add "efi", "pcbios", or both. The
> images created likewise support one or the other or both.
> 
> Signed-off-by: João Henrique Ferreira de Freitas <joaohf at gmail.com>
> ---

Please provide a list of what changed since v1 after the --- line, for
example:

Changes since v1:
* blah blah blah

I believe I acked v1, so what's different here? I will reiterate my
comment about line length in the commit message which does not appear to
have been fixed in this v2.

--
Darren

>  meta/classes/boot-directdisk.bbclass | 65 ++++++++++++++++++++++++++++++------
>  meta/classes/syslinux.bbclass        |  5 +++
>  2 files changed, 60 insertions(+), 10 deletions(-)
> 
> diff --git a/meta/classes/boot-directdisk.bbclass b/meta/classes/boot-directdisk.bbclass
> index 8a55aae..4b9d7bd 100644
> --- a/meta/classes/boot-directdisk.bbclass
> +++ b/meta/classes/boot-directdisk.bbclass
> @@ -31,6 +31,29 @@ EXCLUDE_FROM_WORLD = "1"
>  BOOTDD_VOLUME_ID   ?= "boot"
>  BOOTDD_EXTRA_SPACE ?= "16384"
>  
> +EFI = "${@base_contains("MACHINE_FEATURES", "efi", "1", "0", d)}"
> +EFI_CLASS = "${@base_contains("MACHINE_FEATURES", "efi", "grub-efi", "", d)}"
> +
> +# Include legacy boot if MACHINE_FEATURES includes "pcbios" or if it does not
> +# contain "efi". This way legacy is supported by default if neither is
> +# specified, maintaining the original behavior.
> +def pcbios(d):
> +    pcbios = base_contains("MACHINE_FEATURES", "pcbios", "1", "0", d)
> +    if pcbios == "0":
> +        pcbios = base_contains("MACHINE_FEATURES", "efi", "0", "1", d)
> +    return pcbios
> +
> +def pcbios_class(d):
> +    if d.getVar("PCBIOS", True) == "1":
> +        return "syslinux"
> +    return ""
> +
> +PCBIOS = "${@pcbios(d)}"
> +PCBIOS_CLASS = "${@pcbios_class(d)}"
> +
> +inherit ${PCBIOS_CLASS}
> +inherit ${EFI_CLASS}
> +
>  # Get the build_syslinux_cfg() function from the syslinux class
>  
>  AUTO_SYSLINUXCFG = "1"
> @@ -38,17 +61,32 @@ DISK_SIGNATURE ?= "${DISK_SIGNATURE_GENERATED}"
>  SYSLINUX_ROOT ?= "root=/dev/sda2"
>  SYSLINUX_TIMEOUT ?= "10"
>  
> -inherit syslinux
> -		
> +populate() {
> +	DEST=$1
> +	install -d ${DEST}
> +
> +	# Install bzImage, initrd, and rootfs.img in DEST for all loaders to use.
> +	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage ${DEST}/vmlinuz
> +
> +	if [ -n "${INITRD}" ] && [ -s "${INITRD}" ]; then
> +		install -m 0644 ${INITRD} ${DEST}/initrd
> +	fi
> +
> +}
> +
>  build_boot_dd() {
>  	HDDDIR="${S}/hdd/boot"
>  	HDDIMG="${S}/hdd.image"
>  	IMAGE=${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hdddirect
>  
> -	install -d $HDDDIR
> -	install -m 0644 ${STAGING_KERNEL_DIR}/bzImage $HDDDIR/vmlinuz
> -	install -m 0644 ${S}/syslinux.cfg $HDDDIR/syslinux.cfg
> -	install -m 444 ${STAGING_DATADIR}/syslinux/ldlinux.sys $HDDDIR/ldlinux.sys
> +	populate ${HDDDIR}
> +
> +	if [ "${PCBIOS}" = "1" ]; then
> +		syslinux_hddimg_populate
> +	fi
> +	if [ "${EFI}" = "1" ]; then
> +		grubefi_hddimg_populate
> +	fi
>  
>  	BLOCKS=`du -bks $HDDDIR | cut -f 1`
>  	BLOCKS=`expr $BLOCKS + ${BOOTDD_EXTRA_SPACE}`
> @@ -62,7 +100,9 @@ build_boot_dd() {
>  	mkdosfs -n ${BOOTDD_VOLUME_ID} -S 512 -C $HDDIMG $BLOCKS 
>  	mcopy -i $HDDIMG -s $HDDDIR/* ::/
>  
> -	syslinux $HDDIMG
> +	if [ "${PCBIOS}" = "1" ]; then
> +		syslinux_hdddirect_install $HDDIMG
> +	fi	
>  	chmod 644 $HDDIMG
>  
>  	ROOTFSBLOCKS=`du -Lbks ${ROOTFS} | cut -f 1`
> @@ -85,9 +125,11 @@ build_boot_dd() {
>  		dd of=$IMAGE bs=1 seek=440 conv=notrunc
>  
>  	OFFSET=`expr $END2 / 512`
> -	dd if=${STAGING_DATADIR}/syslinux/mbr.bin of=$IMAGE conv=notrunc
> +	if [ "${PCBIOS}" = "1" ]; then
> +		dd if=${STAGING_DATADIR}/syslinux/mbr.bin of=$IMAGE conv=notrunc
> +	fi
>  	dd if=$HDDIMG of=$IMAGE conv=notrunc seek=1 bs=512
> -	dd if=${ROOTFS} of=$IMAGE conv=notrunc seek=$OFFSET bs=512
> +	dd if=${ROOTFS} of=$IMAGE conv=notrunc seek=$OFFSET bs=512	
>  
>  	cd ${DEPLOY_DIR_IMAGE}
>  	rm -f ${DEPLOY_DIR_IMAGE}/${IMAGE_LINK_NAME}.hdddirect
> @@ -96,7 +138,10 @@ build_boot_dd() {
>  
>  python do_bootdirectdisk() {
>      validate_disk_signature(d)
> -    bb.build.exec_func('build_syslinux_cfg', d)
> +    if d.getVar("PCBIOS", True) == "1":
> +        bb.build.exec_func('build_syslinux_cfg', d)
> +    if d.getVar("EFI", True) == "1":
> +        bb.build.exec_func('build_grub_cfg', d)
>      bb.build.exec_func('build_boot_dd', d)
>  }
>  
> diff --git a/meta/classes/syslinux.bbclass b/meta/classes/syslinux.bbclass
> index 501bc6d..dae6609 100644
> --- a/meta/classes/syslinux.bbclass
> +++ b/meta/classes/syslinux.bbclass
> @@ -64,6 +64,11 @@ syslinux_hddimg_install() {
>  	syslinux ${DEPLOY_DIR_IMAGE}/${IMAGE_NAME}.hddimg
>  }
>  
> +syslinux_hdddirect_install() {
> +	DEST=$1
> +	syslinux $DEST
> +}
> +
>  python build_syslinux_cfg () {
>      import copy
>      import sys

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Linux Kernel