tool: support image/uefi for grub2/uefi boot

- add x86_32/64 GRUB2 UEFI boot loader
- enable support for nova

Issue #2242

tool/boot/README

@@ -37,3 +37,11 @@ code respectively the download source of binaries are described below.
   The changes are available on the genode_bender branch of
   https://github.com/skalk/morbo.git.
 
+:'grub2_32.efi', 'grub2_64.efi'
+
+  GRUB 2 UEFI bootloader for x86
+
+  Source code was obtained from git://git.savannah.gnu.org/grub.git, git
+  commit 972765fe8245cdf44d465329f33b5aa9ac6c2f47.
+
+  The following modules were included: part_msdos iso9660 part_gpt ext2 multiboot multiboot2 fat normal configfile setpci serial efi_uga efi_gop

tool/run/boot_dir/nova

@@ -55,22 +55,44 @@ proc run_boot_dir {binaries} {
 
 	exec rm -rf [run_dir]/genode
 
-	if {[have_include "image/iso"] || [have_include "image/disk"]} {
-		#
-		# Install isolinux/GRUB files and bender
-		#
-		install_iso_bootloader_to_run_dir
+	if {[have_include "image/iso"] || [have_include "image/disk"] || [have_include image/uefi]} {
+		if {[have_include "image/iso"] || [have_include "image/disk"]} {
+			#
+			# Install isolinux/GRUB files and bender
+			#
+			install_iso_bootloader_to_run_dir
+
+			#
+			# Generate GRUB config file
+			#
+			set fh [open "[run_dir]/boot/grub/menu.lst" "WRONLY CREAT TRUNC"]
+			puts $fh "timeout 0"
+			puts $fh "default 0"
+			puts $fh "\ntitle Genode on NOVA"
+			puts $fh " kernel /boot/bender"
+			puts $fh " module /hypervisor iommu serial novpid novga"
+			puts $fh " module /image.elf"
+			close $fh
+		}
+
+		if {[have_include image/uefi]} {
+			exec mkdir -p [run_dir]/efi/boot
+			exec cp [genode_dir]/tool/boot/grub2_32.efi [run_dir]/efi/boot/bootia32.efi
+			exec cp [genode_dir]/tool/boot/grub2_64.efi [run_dir]/efi/boot/bootx64.efi
+			exec mkdir -p [run_dir]/boot/grub
+			exec cp [genode_dir]/tool/boot/bender [run_dir]/boot/bender
+		}
 
 		#
-		# Generate GRUB config file
+		# Generate GRUB2 config file
 		#
-		set fh [open "[run_dir]/boot/grub/menu.lst" "WRONLY CREAT TRUNC"]
-		puts $fh "timeout 0"
-		puts $fh "default 0"
-		puts $fh "\ntitle Genode on NOVA"
-		puts $fh " kernel /boot/bender"
-		puts $fh " module /hypervisor iommu serial novpid novga"
-		puts $fh " module /image.elf"
+		set fh [open "[run_dir]/boot/grub/grub.cfg" "WRONLY CREAT TRUNC"]
+		puts $fh "set timeout=0"
+		puts $fh "menuentry 'Genode on NOVA' {"
+		puts $fh " multiboot2 /boot/bender serial_fallback"
+		puts $fh " module2 /hypervisor hypervisor iommu serial novpid novga"
+		puts $fh " module2 /image.elf image.elf"
+		puts $fh "}"
 		close $fh
 	}
 

tool/run/image/uefi

@@ -0,0 +1,43 @@
+##
+# Create GPT disk image with UEFI boot loaders and content of the run directory
+#
+# \param --image-uefi-size   disk size in MiB
+#
+
+proc image_uefi_size { } { return [get_cmd_arg --image-uefi_size 0] }
+
+
+##
+# Create uefi image
+#
+proc run_image { {unused ""} } {
+
+	requires_installation_of parted
+	requires_installation_of mkfs.vfat
+	requires_installation_of mcopy
+
+	set run_size [expr [regsub {\s.*} [exec du -sm [run_dir]] {}]]
+
+	if {[image_uefi_size] > 0} {
+		set disk_size  [image_uefi_size]
+	} else {
+		set disk_size [expr $run_size + 1]
+	}
+
+	# generate head space designated for the partition table
+	exec dd if=/dev/zero of=[run_dir].header count=34 bs=512 2>/dev/null
+
+	exec dd if=/dev/zero of=[run_dir].partition bs=1M count=$disk_size 2>/dev/null
+	exec mkfs.vfat -n GENODE [run_dir].partition
+
+	# copy content to disk image
+	foreach file [exec ls [run_dir]] {
+		exec mcopy -i [run_dir].partition -s [run_dir]/$file ::
+	}
+
+	exec cat [run_dir].header [run_dir].partition > [run_dir].img
+
+	exec parted -a none -s [run_dir].img -- mklabel gpt mkpart ESP fat32 34s [expr $disk_size * 1024 * 1024 / 512]s set 1 boot on
+
+	exec rm -f [run_dir].header [run_dir].partition
+}