made minix3 bootable via EFI

Change-Id: I61d995e240deb6ebb3027d3ab07e6e3759e52b01

releasetools/image.functions

@@ -245,6 +245,85 @@ create_protos()
 	done
 }
 
+#
+# Clone grub repository and build efi boot binary
+#
+fetch_and_build_grub()
+{
+       if [ -d ${RELEASETOOLSDIR}/grub ]
+       then
+         echo grub is already checked out
+       else
+         git clone git://git.savannah.gnu.org/grub.git ${RELEASETOOLSDIR}/grub
+         pushd ${RELEASETOOLSDIR}/grub
+         # most recent known working commit at the time of writing
+         git clone b524fa27f56381bb0efa4944e36f50265113aee5
+         ./autogen.sh
+         ./configure --with-platform=efi --target=i386
+         make clean
+         make -j ${JOBS}
+         cd grub-core
+         ../grub-mkimage -v -d . -o booti386.efi -O i386-efi -p /boot/efi normal part_msdos fat chain boot configfile multiboot minix3 gzio efi_uga
+         ls -l booti386.efi
+         popd
+       fi
+}
+
+#
+# Create grub.cfg for efi boot
+#
+create_grub_cfg()
+{
+	cat > ${EFI_DIR}/boot/efi/grub.cfg <<END_GRUBCFG
+
+insmod serial
+insmod minix3
+insmod gzio
+#insmod efi_uga
+#insmod video_fb
+insmod all_video
+
+set timeout=30
+set default=0
+
+set gfxmode=text
+
+menuentry "Minix Boot" {
+        set root=(hd0,1)
+        multiboot /boot/minix_default/kernel rootdevname=c0d0p0
+        module /boot/minix_default/mod01_ds
+        module /boot/minix_default/mod02_rs
+        module /boot/minix_default/mod03_pm
+        module /boot/minix_default/mod04_sched
+        module /boot/minix_default/mod05_vfs
+        module /boot/minix_default/mod06_memory
+        module /boot/minix_default/mod07_tty
+        module /boot/minix_default/mod08_mib
+        module /boot/minix_default/mod09_vm
+        module /boot/minix_default/mod10_pfs
+        module /boot/minix_default/mod11_mfs
+        module /boot/minix_default/mod12_init
+}
+
+menuentry "Minix Boot (serial)" {
+        set root=(hd0,1)
+        multiboot /boot/minix_default/kernel rootdevname=c0d0p0 cttyline=0 ttybaud=115200 console=tty00 consdev=com0
+        module /boot/minix_default/mod01_ds
+        module /boot/minix_default/mod02_rs
+        module /boot/minix_default/mod03_pm
+        module /boot/minix_default/mod04_sched
+        module /boot/minix_default/mod05_vfs
+        module /boot/minix_default/mod06_memory
+        module /boot/minix_default/mod07_tty
+        module /boot/minix_default/mod08_mib
+        module /boot/minix_default/mod09_vm
+        module /boot/minix_default/mod10_pfs
+        module /boot/minix_default/mod11_mfs
+        module /boot/minix_default/mod12_init
+}
+END_GRUBCFG
+}
+
 #
 # Create ramdisk image from root directory
 #

releasetools/x86_hdimage.sh

@@ -26,6 +26,7 @@ fi
 : ${ROOT_SIZE=$((  128*(2**20) - ${BOOTXX_SECS} * 512 ))}
 : ${HOME_SIZE=$((  128*(2**20) ))}
 : ${USR_SIZE=$((  1792*(2**20) ))}
+: ${EFI_SIZE=$((  0  ))}
 
 # set up disk creation environment
 . releasetools/image.defaults
@@ -80,6 +81,18 @@ ROOTSIZEARG="-b $((${ROOT_SIZE} / 512 / 8))"
 USRSIZEARG="-b $((${USR_SIZE} / 512 / 8))"
 HOMESIZEARG="-b $((${HOME_SIZE} / 512 / 8))"
 
+if [ ${EFI_SIZE} -ge 512 ]
+then
+       fetch_and_build_grub
+
+       : ${EFI_DIR=$OBJ/efi}
+       rm -rf ${EFI_DIR} && mkdir -p ${EFI_DIR}/boot/minix_default ${EFI_DIR}/boot/efi
+       create_grub_cfg
+       cp ${MODDIR}/* ${EFI_DIR}/boot/minix_default/
+       cp ${RELEASETOOLSDIR}/grub/grub-core/booti386.efi ${EFI_DIR}/boot/efi
+       cp ${RELEASETOOLSDIR}/grub/grub-core/*.mod ${EFI_DIR}/boot/efi
+fi
+
 ROOT_START=${BOOTXX_SECS}
 echo " * ROOT"
 _ROOT_SIZE=$(${CROSS_TOOLS}/nbmkfs.mfs -d ${ROOTSIZEARG} -I $((${ROOT_START}*512)) ${IMG} ${WORK_DIR}/proto.root)
@@ -97,7 +110,18 @@ _HOME_SIZE=$(($_HOME_SIZE / 512))
 # Write the partition table using the natively compiled
 # minix partition utility
 #
-${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE} 81:${_USR_SIZE} 81:${_HOME_SIZE}
+if [ ${EFI_SIZE} -ge 512 ]
+then
+       dd if=/dev/zero bs=${EFI_SIZE} count=1 > ${OBJ}/efi.img
+       EFI_START=$((${HOME_START} + ${_HOME_SIZE}))
+       echo " * EFI"
+       ${CROSS_TOOLS}/nbmakefs -t msdos -s ${EFI_SIZE} -o "F=32,c=1" ${OBJ}/efi.img ${EFI_DIR}
+       dd if=${OBJ}/efi.img >> ${IMG}
+       ${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE}* 81:${_USR_SIZE} 81:${_HOME_SIZE} EF:1+
+else
+       ${CROSS_TOOLS}/nbpartition -m ${IMG} ${BOOTXX_SECS} 81:${_ROOT_SIZE}* 81:${_USR_SIZE} 81:${_HOME_SIZE}
+fi
+
 ${CROSS_TOOLS}/nbinstallboot -f -m ${ARCH} ${IMG} ${DESTDIR}/usr/mdec/bootxx_minixfs3
 
 echo ""
@@ -108,3 +132,5 @@ echo "qemu-system-i386 --enable-kvm -m 256 -hda `pwd`/${IMG}"
 echo ""
 echo "To boot this image on kvm:"
 echo "cd ${MODDIR} && qemu-system-i386 --enable-kvm -m 256M -kernel kernel -append \"rootdevname=c0d0p0\" -initrd \"${mods}\" -hda `pwd`/${IMG}"
+echo "To boot this image on kvm with EFI (tianocore OVMF):"
+echo "qemu-system-i386 -L . -bios OVMF-i32.fd -m 256M -drive file=minix_x86.img,if=ide,format=raw"