* grub-core/partmap/gpt.c (grub_gpt_partition_type_bios_boot)
[GRUB_UTIL]: New variable.
(gpt_partition_map_iterate): Set part.parent.
(gpt_partition_map_embed) [GRUB_UTIL]: New function.
(grub_gpt_partition_map) [GRUB_UTIL]: Set .embed.
* grub-core/partmap/msdos.c (pc_partition_map_embed) [GRUB_UTIL]:
New function.
(grub_msdos_partition_map) [GRUB_UTIL]: Set .embed.
* include/grub/partition.h (grub_embed_type_t) [GRUB_UTIL]: New type.
(grub_partition_map) [GRUB_UTIL]: New field embed.
* util/grub-setup.c (grub_gpt_partition_type_bios_boot): Removed.
(setup): Use ->embed.
Reported by: Yves Blusseau.
* include/grub/command.h (grub_command_flags_t): New flags
GRUB_COMMAND_ACCEPT_DASH and GRUB_COMMAND_OPTIONS_AT_START.
* grub-core/lib/arg.c (grub_arg_parse): Handle new flags.
* grub-core/commands/echo.c (GRUB_MOD_INIT): Use new flags.
All users updated.
* disk/loopback.c (grub_loopback): Remove has_partitions.
All users updated.
(options): Remove partitions. All users updated.
* util/grub-fstest.c (fstest): Don't pass "-p" to loopback.
* util/i386/pc/grub-setup.c (setup): copy partition table only when
actual partition table is found.
* grub-core/Makefile.core.def (vbeinfo): Removed.
(vbetest): Removed.
(videoinfo): New module.
* grub-core/commands/i386/pc/vbeinfo.c: Removed.
* grub-core/commands/i386/pc/vbetest.c: Removed.
* grub-core/commands/videoinfo.c: New file.
* grub-core/commands/videotest.c (grub_cmd_videotest): Support mode
specification.
(grub_cmd_videotest) [GRUB_MACHINE_PCBIOS]: Load vbe.mod when invoked
as vbetest.
(GRUB_MOD_INIT) [GRUB_MACHINE_PCBIOS]: New command vbetest.
(GRUB_MOD_FINI) [GRUB_MACHINE_PCBIOS]: Unregister vbetest.
* grub-core/video/efi_gop.c (grub_video_gop_fill_mode_info): Fill
mode_number. New parameter mode. All users updated.
(grub_video_gop_iterate): New function.
(grub_video_efi_gop): New member iterate.
* grub-core/video/i386/pc/vbe.c (framebuffer): Removed leftover fields.
(grub_vbe_set_video_mode): Remove setting useless fields.
(vbe2videoinfo): New function.
(grub_video_vbe_iterate): Likewise.
(grub_video_vbe_setup): Use vbe2videoinfo.
(grub_video_vbe_print_adapter_specific_info): New function.
(grub_video_vbe_adapter): New fields iterate and
print_adapter_specific_info.
* include/grub/video.h (GRUB_VIDEO_MODE_*): Transform into enum.
All users updated.
(grub_video_mode_info): New field mode_number.
(grub_video_adapter): New fields iterate and
print_adapter_specific_info.
* grub-core/kern/emu/getroot.c (grub_util_get_dev_abstraction):
Return GRUB_DEV_ABSTRACTION_NONE if device is in device.map.
* grub-core/kern/emu/hostdisk.c
(convert_system_partition_to_system_disk): Support mdX.
(find_system_device): New parameter add. All users updated.
(grub_util_biosdisk_is_present): New function.
* include/grub/emu/hostdisk.h (grub_util_biosdisk_is_present): New
proto.
* grub-core/Makefile.core.def (halt): Add commands/acpihalt.c on i386-pc.
* grub-core/commands/acpihalt.c: New file.
* grub-core/commands/i386/pc/halt.c (grub_cmd_halt): Call grub_acpi_halt.
* include/grub/acpi.h (grub_acpi_fadt): New member pm1a.
(grub_acpi_halt): New proto.
(GRUB_ACPI_SLP_EN): New const.
(GRUB_ACPI_SLP_TYP_OFFSET): Likewise.
(GRUB_ACPI_OPCODE_*): New enum.
(GRUB_ACPI_EXTOPCODE_*): Likewise.
* conf/Makefile.common (CFLAGS_PLATFORM): Add -mflush-func
=grub_cpu_flush_cache on all mips and not only yeeloong.
* configure.ac (COND_mips): New conditional.
* grub-core/Makefile.am (KERNEL_HEADER_FILES): Add libgcc on all
platforms.
* grub-core/kern/emu/cache.S (__mips__): Use _flush_cache.
* grub-core/kern/emu/full.c (grub_arch_dl_init_linker)
[GRUB_LINKER_HAVE_INIT]: New function.
(grub_emu_post_init): Likewise.
* grub-core/kern/emu/lite.c (grub_emu_post_init): Likewise.
* grub-core/kern/emu/main.c: Use grub_emu_post_init.
* include/grub/cache.h (_mips): Include mips/cache.h.
* include/grub/disk.h [GRUB_UTIL || GRUB_MACHINE_EMU]: Add missing
LVM and RAID prototypes.
* include/grub/emu/misc.h (grub_emu_post_init): New proto.
* include/grub/mips/time.h (grub_cpu_idle) [GRUB_MACHINE_EMU]: New
function.
GRUB_IEEE1275_FLAG_HAS_CURSORONOFF when appropriate.
* grub-core/term/ieee1275/ofconsole.c (grub_ofconsole_setcursor):
Use terminfo and don't use cursor-on/cursor-off unless it's known
to work.
* include/grub/ieee1275/ieee1275.h (grub_ieee1275_flag): New element
GRUB_IEEE1275_FLAG_HAS_CURSORONOFF.
(grub_file_seekable): New inline function.
* grub-core/io/gzio.c (test_header): Don't test end magic if file isn't
easily seekable.
(grub_gzio_open): Set not_easly_seekable.
* grub-core/fs/i386/pc/pxe.c (grub_pxefs_open): Set not_easily_seekable.
* grub-core/io/bufio.c (grub_bufio_open): Propagate not_easily_seekable.
* grub-core/boot/i386/pc/lnxboot.S: Use
GRUB_KERNEL_I386_PC_MULTIBOOT_SIGNATURE.
* grub-core/kern/i386/pc/startup.S: Move grub_prefix to compressed part.
* include/grub/offsets.h: Rename GRUB_MACHINE_DATA_END to
GRUB_MACHINE_PREFIX_END. All users updated.
(GRUB_KERNEL_I386_PC_PREFIX): Set to GRUB_KERNEL_I386_PC_RAW_SIZE.
(GRUB_KERNEL_I386_PC_PREFIX_END): Set to GRUB_KERNEL_I386_PC_PREFIX
+ 0x40.
(GRUB_KERNEL_I386_PC_RAW_SIZE): Decrease.
* util/grub-mkimage.c (image_target_desc): Change data_end to
prefix_end. All users updated.
required by the boot protocol.
* include/grub/i386/relocator.h (struct grub_relocator32_state): Add
ebp and edi members.
* grub-core/lib/i386/relocator.c (grub_relocator_boot): Handle
state.ebp and state.edi.
* grub-core/lib/i386/relocator32.S (grub_relocator32_start): Set
%ebp and %edi according to grub_relocator32_ebp and
grub_relocator32_edi respectively.
* grub-core/loader/i386/linux.c (grub_linux_boot): Zero state.ebp
and state.edi.
* grub-core/fs/i386/pc/pxe.c (grub_pxe_pxenv): Put correct type bangpxe.
(grub_pxe_scan): Fix types and pxe_rm_entry computation.
All users updated.
* include/grub/i386/pc/pxe.h (grub_pxe_bangpxe): New struct.
(grub_pxe_pxenv): Correct type.
* grub-core/Makefile.core.def (lsefimmap): New module.
* include/grub/efi/api.h (PRIxGRUB_EFI_UINTN_T): New definition.
Also-By: Robert Millan <rmh.grub@aybabtu.com>
Also-By: Vladimir Serbinenko <phcoder@gmail.com>
* Makefile.util.def (grub-mkrescue): Use x86 tg instead of
x86_noieee1275 which are functionaly equivalent in this case.
(grub-install): Make source on each platform explicit. Enable on
all noemu.
* gentpl.py (x86_efi_pc): Removed group.
(x86_noefi): Likewise.
(i386_noefi): Likewise.
(x86_noieee1275): Likewise.
(i386_noieee1275): Likewise.
(i386_noefi_noieee1275): Likewise.
(i386_pc_qemu_coreboot): Likewise.
(i386_coreboot_multiboot): Likewise.
(i386_pc_coreboot_multiboot_qemu): Likewise.
(x86_noefi_mips): Likewise.
(noieee1275): Likewise.
(ieee1275_mips): Likewise.
(noemu_noieee1275): Likewise.
(cmos): New group.
(usb): Likewise.
(videoinkernel): Likewise.
(videomodules): Likewise.
* grub-core/Makefile.am (KERNEL_HEADER_FILES): Remove
include/grub/elf.h, include/grub/elfload.h, include/grub/net.h,
include/grub/reader.h, include/grub/symbol.h, include/grub/types.h,
include/grub/loader.h, include/grub/msdos_partition.h,
include/grub/machine/biosdisk.h, include/grub/machine/boot.h,
include/grub/machine/console.h, include/grub/machine/vga.h,
include/grub/machine/vbe.h, include/grub/machine/init.h,
include/grub/machine/kernel.h, include/grub/cpu/time.h,
include/grub/cpu/types.h, include/grub/gzio.h and include/grub/menu.h
(KERNEL_HEADER_FILES) [i386-pc]: Add include/grub/machine/int.h.
(KERNEL_HEADER_FILES) [i386-ieee1275]: Add include/grub/i386/pit.h
* grub-core/Makefile.core.def (kernel): Explicit the source for
startup. Explicit the platforms using kern/generic/rtc_get_time_ms.c.
Split ieee1275_mips. Remove kern/i386/halt.c. Remove kern/i386/misc.S.
Enable kern/i386/pit.c on all x86. Remove kern/i386/ieee1275/init.c.
Use videoinkernel tag.
(usb): Enable on all usb.
(usbserial_common): Likewise.
(usbserial_pl2303): Likewise.
(usbserial_ftdi): Likewise.
(uhci): Enable on all x86.
(ohci): Enable on all pci.
(cmostest): Enable on all CMOS.
(acpi): Include commands/acpi.c on all platforms.
(halt): Add relevant lib/*/halt.c.
(hdparm): Enable on all pci.
(lspci): Likewise.
(usbtest): Enable on all usb.
(ata): Enable on all pci.
(ata_pthru): Likewise.
(usbms): Enable on all usb.
(usb_keyboard): Likewise.
(font): Use tag videomodules.
(bufio): Likewise.
(datetime): Use tag cmos. Enable on all noemu.
(mmap): Use tags common and x86.
(gfxterm): Use tag videomodules.
(bitmap): Likewise.
(bitmap_scale): Likewise.
(video_fb): Likewise.
(video): Likewise.
* grub-core/bus/usb/ohci.c (grub_ohci_td): Make link_td a pointer and
adjust padding accordingly. All users updated.
(grub_ohci_transaction): Fix bad format specification.
(GRUB_MOD_INIT): Add asserts for struct size.
* grub-core/bus/usb/uhci.c (grub_uhci_pci_iter): Add explicit casts.
(grub_alloc_td): Likewise.
(grub_free_queue): Likewise.
(grub_uhci_transfer): Likewise.
(grub_uhci_transaction): Fix bad format specification.
* grub-core/bus/usb/usbtrans.c (grub_usb_control_msg): Likewise.
(grub_usb_bulk_readwrite): Likewise.
* grub-core/kern/i386/misc.S (grub_stop): Moved from here ...
* grub-core/commands/i386/pc/halt.c (stop): ...here. Transformed into C.
Made static.
* grub-core/lib/i386/halt.c (stop): ... and here. Transformed into C.
Made static.
* grub-core/kern/i386/pc/startup.S (grub_halt): Moved from here ...
* grub-core/commands/i386/pc/halt.c (grub_halt): ...here.
Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_biosdisk_rw_int13_extensions):
Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c (grub_biosdisk_rw_int13_extensions):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_biosdisk_rw_standard):
Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c (grub_biosdisk_rw_standard):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S
(grub_biosdisk_check_int13_extensions): Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c
(grub_biosdisk_check_int13_extensions): ... here. Transformed into C.
Made static.
* grub-core/kern/i386/pc/startup.S
(grub_biosdisk_get_cdinfo_int13_extensions): Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c
(grub_biosdisk_get_cdinfo_int13_extensions): ... here.
Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S
(grub_biosdisk_get_diskinfo_int13_extensions): Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c
(grub_biosdisk_get_diskinfo_int13_extensions): ... here.
Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S
(grub_biosdisk_get_diskinfo_standard): Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c
(grub_biosdisk_get_diskinfo_standard): ... here.
Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S
(grub_biosdisk_get_num_floppies): Moved from here ...
* grub-core/disk/i386/pc/biosdisk.c
(grub_biosdisk_get_num_floppies): ... here.
Transformed into C. Made static.
* grub-core/disk/i386/pc/biosdisk.c (grub_biosdisk_get_diskinfo_real):
New function.
* grub-core/kern/i386/pc/startup.S (grub_pxe_scan): Moved from here ...
* grub-core/fs/i386/pc/pxe.c (grub_pxe_scan): ... here.
Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_rm_entry): Moved from here ...
* grub-core/fs/i386/pc/pxe.c (grub_rm_entry): ... here.
Transformed into C. Made static.
* grub-core/kern/i386/ieee1275/init.c: Removed.
* grub-core/kern/i386/misc.S: Likewise.
* grub-core/kern/i386/pc/startup.S (grub_get_memsize):
Splitted from here ...
* grub-core/kern/i386/pc/init.c (grub_get_conv_memsize): ... here.
Transformed into C. Made static. All users updated.
* grub-core/kern/i386/pc/mmap.c (grub_get_ext_memsize): ... and here.
Transformed into C. Made static. All users updated.
* grub-core/kern/i386/pc/startup.S (grub_get_eisa_mmap):
Moved from here...
* grub-core/kern/i386/pc/mmap.c (grub_get_eisa_mmap): ... here.
Transformed into C. Made static. All users updated.
* grub-core/kern/i386/pc/startup.S (grub_get_mmap_entry):
Moved from here...
* grub-core/kern/i386/pc/mmap.c (grub_get_mmap_entry): ... here.
Transformed into C. Made static. All users updated.
* grub-core/kern/i386/pc/startup.S (grub_stop_floppy):
Removed (replaced by C version).
* grub-core/kern/i386/pc/startup.S (grub_vga_set_mode):
Moved from here...
* grub-core/video/i386/pc/vga.c (grub_vga_set_mode): ...here.
Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_controller_info):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_controller_info):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_mode_info):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_mode_info):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_set_mode):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_set_mode):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_mode):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_mode):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S
(grub_vbe_bios_getset_dac_palette_width):Moved from here...
* grub-core/video/i386/pc/vbe.c
(grub_vbe_bios_getset_dac_palette_width):... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_set_memory_window):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_set_memory_window):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_memory_window):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_memory_window):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_set_scanline_length):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_set_scanline_length):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_scanline_length):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_scanline_length):
... here. Transformed into C.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_set_display_start):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_set_display_start):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_get_display_start):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_get_display_start):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_vbe_bios_set_palette_data):
Moved from here...
* grub-core/video/i386/pc/vbe.c (grub_vbe_bios_set_palette_data):
... here. Transformed into C. Made static.
* grub-core/kern/i386/pc/startup.S (grub_pxe_call): Receive
pxe_rm_entry as third argument.
(grub_bios_interrupt): New function.
* grub-core/kern/i386/qemu/mmap.c: Remove useless include.
* grub-core/kern/i386/qemu/startup.S (codestart): Do cli;hlt instead
of calling grub_stop.
* grub-core/kern/efi/efi.c (grub_halt): Moved from here ...
* grub-core/lib/efi/halt.c (grub_halt): ...here.
* grub-core/kern/emu/main.c (grub_halt): Moved from here ...
* grub-core/lib/emu/halt.c (grub_halt): ... here.
* grub-core/lib/i386/halt.c: Moved from here ...
* grub-core/lib/i386/halt.c: ... here.
* grub-core/kern/ieee1275/openfw.c (grub_halt): Moved from here ...
* grub-core/lib/ieee1275/halt.c (grub_halt): ... here.
* grub-core/loader/i386/pc/linux.c (grub_linux16_boot): Call
grub_stop_floppy.
* grub-core/loader/i386/xnu.c (guessfsb) [IEEE1275]: Enable.
* include/grub/i386/coreboot/init.h: Removed.
* include/grub/i386/multiboot/init.h: Likewise.
* include/grub/i386/pc/biosdisk.h: Removed all function prototypes.
* include/grub/i386/pc/init.h: Likewise except grub_gate_a20.
* include/grub/i386/pc/int.h: New file.
* include/grub/i386/pc/pxe.h (GRUB_PXE_SIGNATURE): New definition.
(grub_pxe_scan): Removed.
(grub_pxe_call): Update prototype.
* include/grub/i386/pc/vbe.h: Removed EXPORT_FUNC and useless
prototypes.
* include/grub/i386/pc/vga.h (grub_vga_set_mode): Removed.
* include/grub/i386/qemu/init.h: Removed.
* include/grub/mips/yeeloong/kernel.h (grub_reboot): Add missing
noreturn.
(grub_halt): Likewise.
* include/grub/misc.h (grub_halt): Removed EXPORT_FUNC.
(grub_reboot): Likewise.
* grub-core/kern/i386/coreboot/init.c (grub_stop_floppy): Moved from here...
* include/grub/i386/floppy.h (grub_stop_floppy): ...here. Inlined.
* grub-core/kern/i386/pc/startup.S (grub_hard_stop): Removed.
* include/grub/pci.h (GRUB_PCI_CLASS_SUBCLASS_VGA): New const.
* include/grub/vga.h (GRUB_VGA_IO_ARX_READ): New register.
(GRUB_VGA_IO_MISC_WRITE): Likewise.
(GRUB_VGA_CR_*): Added many registers.
(GRUB_VGA_SR_*): Likewise.
(GRUB_VGA_GR_*): Likewise.
(grub_vga_write_arx): New function.
(grub_video_hw_config): New struct.
(grub_vga_set_geometry): New function.
* kern/i386/qemu/init.c (load_palette): Use grub_vga_write_arx and
GRUB_PCI_CLASS_SUBCLASS_VGA.
* video/cirrus.c (grub_video_cirrus_setup): Use grub_vga_set_geometry.
* video/sm712.c (grub_sm712_write_reg): New function
(grub_sm712_read_reg): Likewise.
(grub_sm712_sr_write): Likewise.
(grub_sm712_gr_write): Likewise.
(grub_sm712_cr_write): Likewise.
(grub_sm712_write_arx): Likewise.
(grub_sm712_cr_shadow_write): Likewise.
(grub_sm712_write_dda_lookup): Likewise.
(grub_video_sm712_setup): Initialise the video rather then
blindly replay the dump.
(main) [TEST]: Add a routine to be able to compile as standalone for
tests.
* video/sm712_init.c (sm712_init): Removed.
(sm712_sr_seq1): New array.
(sm712_sr_seq2): Likewise.
Make it even harder to use uninitialized `libzfs_handle' (and
make the interface a bit simpler).
* include/grub/util/misc.h (grub_util_init_libzfs)
(libzfs_handle): Remove.
(grub_get_libzfs_handle): New prototype.
* util/misc.c [HAVE_LIBZFS] (libzfs_handle): Add `static'
attribute.
(grub_util_init_libzfs): Remove.
(grub_get_libzfs_handle): New function.
* kern/emu/getroot.c (find_root_device_from_libzfs): Use
grub_get_libzfs_handle() to obtain a libzfs handle instead of
accessing `libzfs_handle' directly.
* include/grub/emu/misc.h (grub_find_mount_point_from_dir)
(grub_find_zpool_from_mount_point): New function prototypes.
* kern/emu/getroot.c [HAVE_GETFSSTAT]: Move `<sys/mount.h>' to ...
* kern/emu/misc.c [HAVE_GETFSSTAT]: ... here.
* kern/emu/getroot.c (find_mount_point_from_dir): Move to ...
* kern/emu/misc.c (grub_find_mount_point_from_dir): ... this. Remove
`static' attribute.
* kern/emu/getroot.c (find_root_device_from_libzfs): Split code for
finding zpool from mount point into ...
* kern/emu/misc.c (grub_find_zpool_from_mount_point): ... this.
* kern/emu/misc.c (grub_make_system_path_relative_to_its_root): When
requested path is part of a ZFS pool, use
grub_find_zpool_from_mount_point() to detect its filesystem name,
and generate a path with `/fsname@path' syntax.
* configure.ac: Check for `libzfs.h' and `libnvpair.h'.
* include/grub/util/libnvpair.h: Include `<config.h>'.
[HAVE_LIBNVPAIR_H]: Include `<libnvpair.h>' instead of
declaring libnvpair prototypes ourselves.
* include/grub/util/libzfs.h: Include `<config.h>'.
[HAVE_LIBZFS_H]: Include `<libzfs.h>' instead of
declaring libzfs prototypes ourselves.
(libzfs_handle): Moved to ...
* include/grub/util/misc.h (libzfs_handle): ... here.
Include `<grub/util/libzfs.h>'.
Enable `grub-probe -t device' resolution on ZFS.
* configure.ac: Check for getfsstat(), libzfs and libnvpair.
* include/grub/util/libnvpair.h: New file.
* include/grub/util/libzfs.h: New file.
* kern/emu/getroot.c: Include `<assert.h>' and `<error.h>'.
[HAVE_LIBZFS && HAVE_LIBNVPAIR]: Include `<grub/util/libzfs.h>' and
`<grub/util/libnvpair.h>'.
[HAVE_GETFSSTAT]: Include `<sys/mount.h>'.
(find_mount_point_from_dir): New static function.
[HAVE_LIBZFS && HAVE_LIBNVPAIR] (find_root_device_from_libzfs): New
function.
[HAVE_LIBZFS && HAVE_LIBNVPAIR] (grub_guess_root_device): Use
find_root_device_from_libzfs() before ressorting to find_root_device().
* include/grub/util/misc.h (grub_util_init_libzfs): New function
prototype.
* util/misc.c: Include `<grub/util/libzfs.h>'.
(grub_util_init_libzfs): New function.
[HAVE_LIBZFS] (libzfs_handle): New global variable.
[HAVE_LIBZFS] (fini_libzfs): New static function.
(grub_util_init_libzfs): New function.
* util/grub-probe.c (main): Call grub_util_init_libzfs().
