Fixes ACPI halt on ASUSTeK P8B75-V,
Bios: American Megatrends v: 0414 date: 04/24/2012
Reported-By: Goh Lip <g.lip@gmx.com>

PIT isn't available on some of new hardware including Hyper-V. So
use pmtimer for calibration. Moreover pmtimer calibration is faster, so
use it on coreboor where booting time is important.

Based on patch by Michael Chang.

	The AML parser implements only a small subset of possible AML
	opcodes. On the Fujitsu Lifebook E744 this and another bug in
	the parser (incorrect handling of TermArg data types) would lead
	to the laptop not turning off (_S5 not found).

	* grub-core/commands/acpihalt.c: Support OpAlias in the AML parser;
	in skip_ext_op(), handle some Type2Opcodes more correctly (TermArgs
	aren't always simply strings!); Add function to skip TermArgs
	* include/grub/acpi.h: Add new opcodes

	Just "packed" doesn't always pack the way we expect.

	  skipping Event, Device, Processor, PowerRes, ThermalZone, and
	  BankField extended opcodes.
	  (get_sleep_type): Add minimal scope handling (just enough to
	  handle setting the scope to the root path).
	  (grub_acpi_halt): Parse any SSDTs as well as the DSDT.
	* include/grub/acpi.h: Add enumeration values for Event, Device,
	  Processor, PowerRes, ThermalZone, and BankField extended opcodes.

	GRUB_ACPI_OPCODE_STRING_CONST, GRUB_ACPI_OPCODE_BUFFER,
	GRUB_ACPI_OPCODE_CREATE_WORD_FIELD
	and GRUB_ACPI_OPCODE_CREATE_BYTE_FIELD.
	* grub-core/commands/acpihalt.c [GRUB_DSDT_TEST]: Replace include of
	i18n with gettext no-op.
	(skip_data_ref_object): Support GRUB_ACPI_OPCODE_BUFFER and
	GRUB_ACPI_OPCODE_STRING_CONST.
	(get_sleep_type): Support GRUB_ACPI_OPCODE_CREATE_WORD_FIELD and
	GRUB_ACPI_OPCODE_CREATE_BYTE_FIELD. Add handling of unknown opcodes.

	* include/grub/acpi.h (GRUB_ACPI_EXTOPCODE_INDEX_FIELD_OP): New
	enum value.

	* grub-core/commands/acpihalt.c [GRUB_DSDT_TEST]: Include userspace
	headers and add relevant defines. Don't include standard headers.
	(main) [GRUB_DSDT_TEST]: New function.
	* include/grub/acpi.h [GRUB_DSDT_TEST]: Don't include standard headers.
	Don't declare functions.

	* grub-core/Makefile.core.def (lsacpi): New module.
	* include/grub/acpi.h (GRUB_ACPI_FADT_SIGNATURE): New definition.
	(GRUB_ACPI_MADT_SIGNATURE): Likewise.
	(grub_acpi_madt_entry_header): New struct.
	(grub_acpi_madt): Likewise.
	(grub_acpi_madt_entry_interrupt_override): Likewise.
	(grub_acpi_madt_entry_sapic): Likewise.
	(grub_acpi_madt_entry_lsapic): Likewise.
	(grub_acpi_madt_entry_platform_int_source): Likewise.
	* include/grub/types.h (PRIxGRUB_UINT32_T): New definition.
	(PRIuGRUB_UINT32_T): Likewise.
	(PRIxGRUB_UINT64_T): Likewise.
Also-By: Robert Millan <rmh.grub@aybabtu.com>
Also-By: Vladimir Serbinenko <phcoder@gmail.com>

	ACPI spoofing

	* commands/acpi.c: new file
	* commands/i386/pc/acpi.c: likewise
	* commands/efi/acpi.c: likewise
	* include/grub/acpi.h: likewise
	* conf/i386-pc.rmk (pkglib_MODULES): added acpi.mod
	(acpi_mod_SOURCES): new variable
	(acpi_mod_CFLAGS): likewise
	(acpi_mod_LDFLAGS): likewise
	* conf/i386-efi.rmk: likewise
	* conf/x86_64-efi.rmk: likewise