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grub2.13873
grub2-efi-xen-chainload.patch
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File grub2-efi-xen-chainload.patch of Package grub2.13873
From: Raymund Will <rw@suse.com> Subject: Use chainloader to boot xen.efi under UEFI. References: bnc#871857, bnc#879148 Patch-Mainline: no As XEN on SLE12 is not multiboot2 ready, some very dirty hacking is necessary to boot via xen.efi and separate configfile snippets (as done in SLE11SP3 secureboot). To that end said configfile snippets, xen efi-binaries, kernels and initrds need to copied to the EFI system partition during 'grub2-mkconfig'! V0: - first, somewhat fragile version, without any sort of cleanup for ESP. V1: - add missing whitespace. (bnc879148) V2: - second, much less fragile version, using only one config file per XEN hypervisor version with sections for different kernels, avoiding useless duplicates for sym-linked hypervisors. and removing previously installed files from ESP. V3: - support move to '/usr/share/efi/$machine' for EFI-binaries. (bsc#1122563) --- util/grub.d/20_linux_xen.in | 109 +++++++++++++++++++++++++++++++++++++++----- 1 file changed, 97 insertions(+), 12 deletions(-) --- a/util/grub.d/20_linux_xen.in +++ b/util/grub.d/20_linux_xen.in @@ -21,6 +21,8 @@ prefix="@prefix@" exec_prefix="@exec_prefix@" datarootdir="@datarootdir@" +ME=$(basename $0) + . "$pkgdatadir/grub-mkconfig_lib" export TEXTDOMAIN=@PACKAGE@ @@ -36,11 +38,23 @@ CLASS="--class gnu-linux --class gnu --c if [ "x${GRUB_DISTRIBUTOR}" = "x" ] ; then OS=GNU/Linux + os=linux else OS="${GRUB_DISTRIBUTOR}" - CLASS="--class $(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1|LC_ALL=C sed 's,[^[:alnum:]_],_,g') ${CLASS}" + os="$(echo ${GRUB_DISTRIBUTOR} | tr 'A-Z' 'a-z' | cut -d' ' -f1)" + CLASS="--class ${os} ${CLASS}" fi +machine=`uname -m` + +case "$machine" in + i?86) GENKERNEL_ARCH="x86" ;; + mips|mips64) GENKERNEL_ARCH="mips" ;; + mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;; + arm*) GENKERNEL_ARCH="arm" ;; + *) GENKERNEL_ARCH="$machine" ;; +esac + # loop-AES arranges things so that /dev/loop/X can be our root device, but # the initrds that Linux uses don't like that. case ${GRUB_DEVICE} in @@ -87,6 +101,32 @@ esac title_correction_code= +if [ -d /sys/firmware/efi ]; then + is_efi=true + err_msg="" + efi_dir="/boot/efi/efi/${os}" + grub_dir=/boot/@PACKAGE@ + xen_dir=/usr/share/efi/$machine + [ -d $xen_dir ] || xen_dir=/usr/lib64/efi + for d in $grub_dir $efi_dir $xen_dir; do + [ ! -d "$d" ] || continue + err_msg="${err_msg}$ME: Essential directory '$d' not found!\n" + done + if ! [ -d "$efi_dir" -a -d "$grub_dir" -a -d "$xen_dir" ]; then + err_msg="${err_msg}$ME: XEN configuration skipped!\n" + else + rm -f $grub_dir/xen*.cfg + if [ -s $efi_dir/grub.xen-files ]; then + for f in $(sort $efi_dir/grub.xen-files| uniq); do + rm -f $efi_dir/$f + done + : > $efi_dir/grub.xen-files + fi + fi +else + is_efi=false +fi + linux_entry () { os="$1" @@ -124,6 +164,40 @@ linux_entry () save_default_entry | grub_add_tab | sed "s/^/$submenu_indentation/" fi + if $is_efi; then + xen_cfg=${xen_basename/.efi/.cfg} + if [ "$section_count" = 0 ]; then + cat <<-EOF > $grub_dir/$xen_cfg + # disclaimer + [global] + #default= + EOF + fi + section_count=$(expr $section_count + 1) + if [ x$type != xrecovery ] ; then + section="config.$section_count" + else + section="failsafe.$section_count" + fi + cat <<-EOF >> $grub_dir/$xen_cfg + + [$section] + options=${xen_args} + kernel=${basename} root=${linux_root_device_thisversion} ${args} + ramdisk=${initrd_real} + EOF + message="$(gettext_printf "Loading Xen %s with Linux %s ..." ${xen_version} ${version})" + sed "s/^/$submenu_indentation/" <<-EOF + echo '$(echo "$message" | grub_quote)' + chainloader \$cmdpath/${xen_basename} ${xen_basename} $section + } + EOF + for f in ${grub_dir}/$xen_cfg ${xen_dir}/${xen_basename} ${dirname}/${basename} ${dirname}/${initrd_real}; do + cp --preserve=timestamps $f $efi_dir + echo $(basename $f) >> $efi_dir/grub.xen-files + done + return + fi if [ -z "${prepare_boot_cache}" ]; then prepare_boot_cache="$(prepare_grub_to_access_device ${GRUB_DEVICE_BOOT} | grub_add_tab)" fi @@ -200,16 +274,6 @@ boot_device_id= title_correction_code= -machine=`uname -m` - -case "$machine" in - i?86) GENKERNEL_ARCH="x86" ;; - mips|mips64) GENKERNEL_ARCH="mips" ;; - mipsel|mips64el) GENKERNEL_ARCH="mipsel" ;; - arm*) GENKERNEL_ARCH="arm" ;; - *) GENKERNEL_ARCH="$machine" ;; -esac - # Extra indentation to add to menu entries in a submenu. We're not in a submenu # yet, so it's empty. In a submenu it will be equal to '\t' (one tab). submenu_indentation="" @@ -223,6 +287,24 @@ while [ "x${xen_list}" != "x" ] ; do xen_dirname=`dirname ${current_xen}` rel_xen_dirname=`make_system_path_relative_to_its_root $xen_dirname` xen_version=`echo $xen_basename | sed -e "s,.gz$,,g;s,^xen-,,g"` + xen_list=`echo $xen_list | tr ' ' '\n' | grep -vx $current_xen | tr '\n' ' '` + if $is_efi; then + xen_basename=${xen_basename/.gz/.efi} + if ! [ -f ${xen_dir}/${xen_basename} ]; then + echo "Skip missing hypervisor $xen_dir/$xen_basename" >&2 + continue + elif [ -L ${xen_dir}/${xen_basename} ]; then + xen_target=$(basename $(readlink -e ${xen_dir}/${xen_basename})) + if [ -f ${efi_dir}/${xen_target} ]; then + echo "Skip duplicate $xen_dir/$xen_basename for $xen_target" >&2 + continue + fi + elif [ -n "$err_msg" ]; then + break + fi + gettext_printf "Found hypervisor: %s\n" "$current_xen" >&2 + section_count=0 + fi if [ -z "$boot_device_id" ]; then boot_device_id="$(grub_get_device_id "${GRUB_DEVICE}")" fi @@ -287,7 +369,6 @@ while [ "x${xen_list}" != "x" ] ; do if [ x"$is_top_level" != xtrue ]; then echo ' }' fi - xen_list=`echo $xen_list | tr ' ' '\n' | fgrep -vx "$current_xen" | tr '\n' ' '` done # If at least one kernel was found, then we need to @@ -297,3 +378,7 @@ if [ x"$is_top_level" != xtrue ]; then fi echo "$title_correction_code" + +if [ -n "$err_msg" ]; then + echo -en "$err_msg" >&2 +fi
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