Documentation says, bootloader should set reserved field to zero.

Reported by Wink Saville <wink@saville.com>

Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com>

Found by: Coverity scan.

	* grub-core/loader/multiboot_mbi2.c: Likewise.

	NULL pointer dereference.

	of supported tags.

	module.

	BSS clearing.

* grub-core/efiemu/mm.c (grub_efiemu_mmap_iterate): Add hook_data
argument, passed to hook.
* grub-core/kern/i386/coreboot/mmap.c
(grub_linuxbios_table_iterate): Likewise.
(grub_machine_mmap_iterate: iterate_linuxbios_table): Make static
instead of nested.
(grub_machine_mmap_iterate): Add hook_data argument.
* grub-core/kern/i386/multiboot_mmap.c (grub_machine_mmap_iterate):
Add hook_data argument, passed to hook.
* grub-core/kern/i386/pc/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/i386/qemu/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/ieee1275/mmap.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/arc/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/loongson/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/kern/mips/qemu_mips/init.c (grub_machine_mmap_iterate):
Likewise.
* grub-core/mmap/efi/mmap.c (grub_efi_mmap_iterate): Likewise.
(grub_machine_mmap_iterate): Likewise.
* grub-core/mmap/mmap.c (grub_mmap_iterate): Likewise.
* include/grub/efiemu/efiemu.h (grub_efiemu_mmap_iterate): Update
prototype.
* include/grub/memory.h (grub_memory_hook_t): Add data argument.
Remove NESTED_FUNC_ATTR from here and from all users.
(grub_mmap_iterate): Update prototype.
(grub_efi_mmap_iterate): Update prototype.  Update all callers to
pass appropriate hook data.
(grub_machine_mmap_iterate): Likewise.

* grub-core/commands/acpi.c (grub_acpi_create_ebda: find_hook): Make
static instead of nested.
* grub-core/commands/lsmmap.c (grub_cmd_lsmmap: hook): Likewise.
Rename to ...
(lsmmap_hook): ... this.
* grub-core/efiemu/mm.c (grub_efiemu_mmap_init: bounds_hook):
Likewise.
(grub_efiemu_mmap_fill: fill_hook): Likewise.
* grub-core/kern/i386/coreboot/init.c (grub_machine_init:
heap_init): Likewise.
* grub-core/kern/i386/pc/init.c (grub_machine_init: hook): Likewise.
Rename to ...
(mmap_iterate_hook): ... this.
* grub-core/kern/ieee1275/init.c (grub_claim_heap: heap_init):
Likewise.
* grub-core/lib/ieee1275/relocator.c
(grub_relocator_firmware_get_max_events: count): Likewise.
(grub_relocator_firmware_fill_events: fill): Likewise.  Rename
to ...
(grub_relocator_firmware_fill_events_iter): ... this.
* grub-core/lib/relocator.c (grub_relocator_alloc_chunk_align:
hook): Likewise.  Rename to ...
(grub_relocator_alloc_chunk_align_iter): ... this.
* grub-core/loader/i386/bsd.c (generate_e820_mmap: hook): Likewise.
Rename to ...
(generate_e820_mmap_iter): ... this.
* grub-core/loader/i386/linux.c (find_mmap_size: hook): Likewise.
Rename to ...
(count_hook): ... this.
(grub_linux_boot: hook): Likewise.  Rename to ...
(grub_linux_boot_mmap_find): ... this.
(grub_linux_boot: hook_fill): Likewise.  Rename to ...
(grub_linux_boot_mmap_fill): ... this.
* grub-core/loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap:
hook): Likewise.  Rename to ...
(grub_fill_multiboot_mmap_iter): ... this.
* grub-core/loader/multiboot.c (grub_get_multiboot_mmap_count:
hook): Likewise.  Rename to ...
(count_hook): ... this.
* grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap:
hook): Likewise.  Rename to ...
(grub_fill_multiboot_mmap_iter): ... this.
* grub-core/loader/powerpc/ieee1275/linux.c
(grub_linux_claimmap_iterate: alloc_mem): Likewise.
* grub-core/loader/sparc64/ieee1275/linux.c (alloc_phys: choose):
Likewise.  Rename to ...
(alloc_phys_choose): ... this.
(determine_phys_base: get_physbase): Likewise.
* grub-core/mmap/i386/mmap.c (grub_mmap_malign_and_register:
find_hook): Likewise.
* grub-core/mmap/i386/pc/mmap.c (preboot: fill_hook): Likewise.
(malloc_hook: count_hook): Likewise.
* grub-core/mmap/i386/uppermem.c (grub_mmap_get_lower: hook):
Likewise.  Rename to ...
(lower_hook): ... this.
(grub_mmap_get_upper: hook): Likewise.  Rename to ...
(upper_hook): ... this.
(grub_mmap_get_post64: hook): Likewise.  Rename to ...
(post64_hook): ... this.
* grub-core/mmap/mips/uppermem.c (grub_mmap_get_lower: hook):
Likewise.  Rename to ...
(lower_hook): ... this.
(grub_mmap_get_upper: hook): Likewise.  Rename to ...
(upper_hook): ... this.
* grub-core/mmap/mmap.c (grub_mmap_iterate: count_hook): Likewise.
(grub_mmap_iterate: fill_hook): Likewise.
(fill_mask): Pass addr and mask within a single struct.
(grub_cmd_badram: hook): Make static instead of nested.  Rename
to ...
(badram_iter): ... this.
(grub_cmd_cutmem: hook): Likewise.  Rename to ...
(cutmem_iter): ... this.

	on it.

	Reserve alignment invariants.
	(grub_multiboot_load): Likewise.
	(retrieve_video_parameters): Likewise.
	(grub_multiboot_make_mbi): Likewise.

	* grub-core/bus/usb/usbhub.c (hubs): Likewise.
	* grub-core/commands/hashsum.c (aliases): Likewise.
	* grub-core/commands/setpci.c (pci_registers): Likewise.
	* grub-core/disk/usbms.c (attach_hook): Likewise.
	* grub-core/fs/zfs/zfs.c (decomp_table): Likewise.
	(zio_checksum_table): Likewise.
	* grub-core/gettext/gettext.c (grub_gettext_msg_list): Likewise.
	* grub-core/gfxmenu/gfxmenu.c (cached_view): Likewise.
	* grub-core/lib/legacy_parse.c (legacy_commands): Likewise.
	* grub-core/lib/relocator.c (leftovers): Likewise.
	(extra_blocks): Likewise.
	* grub-core/loader/i386/bsd.c (relocator): Likewise.
	* grub-core/loader/i386/multiboot_mbi.c (modules): Likewise.
	(modules_last): Likewise.
	* grub-core/loader/i386/xnu.c (table_aliases): Likewise.
	(devices): Likewise.
	* grub-core/loader/multiboot_mbi2.c (modules): Likewise.
	(modules_last): Likewise.
	* grub-core/normal/auth.c (users): Likewise.
	* grub-core/normal/context.c (initial_menu): Likewise.
	(current_menu): Likewise.
	* grub-core/normal/crypto.c (crypto_specs): Likewise.
	* grub-core/term/serial.c (grub_serial_ports): Likewise.
	(grub_serial_terminfo_input_template): Likewise.
	(grub_serial_terminfo_output_template): Likewise.
	(grub_serial_terminfo_input): Likewise.
	(grub_serial_terminfo_output): Likewise.
	(registered): Likewise.
	* grub-core/term/usb_keyboard.c (attach_hook): Likewise.

	[GRUB_MACHINE_EFI && __i386__]: Fix typo.

i386 and x86-64 definedness tests.

typo in __i386__ conditional.

	include.

	Add BADRAM.
	* grub-core/loader/multiboot_mbi2.c (grub_fill_multiboot_mmap):
	Likewise.
	* include/multiboot.h: Resynced with specification.
	* include/multiboot2.h: Likewise.

	* conf/i386-multiboot.rmk: New file.
	* configure.ac: Add multiboot port.
	* include/grub/i386/multiboot/boot.h: New file.
	* include/grub/i386/multiboot/console.h: Likewise.
	* include/grub/i386/multiboot/init.h: Likewise.
	* include/grub/i386/multiboot/kernel.h: Likewise.
	* include/grub/i386/multiboot/loader.h: Likewise.
	* include/grub/i386/multiboot/memory.h: Likewise.
	* include/grub/i386/multiboot/serial.h: Likewise.
	* include/grub/i386/multiboot/time.h: Likewise.
	* include/grub/multiboot.h: Add GRUB_MACHINE_MULTIBOOT to ifdef.
	* loader/multiboot.c: Likewise.
	* loader/multiboot_mbi2.c: Likewise.
	* util/grub-mkrescue.in: Generate multiboot rescue.