i386: use ACPI to power off the machine

This is a mostly verbatim copy of acpihalt.c from GRUB2 with a little
bit of glue code.

* i386/Makefrag.am (libkernel_a_SOURCES): Add the new files.
* i386/grub/acpi.h: Verbatim copy from GRUB2.
* i386/grub/compiler.h: Likewise.
* i386/grub/cpu/io.h: Likewise.
* i386/grub/cpu/time.h: Likewise.
* i386/grub/cpu/types.h: Likewise.
* i386/grub/err.h: Likewise.
* i386/grub/misc.h: Likewise.
* i386/grub/mm.h: Likewise.
* i386/grub/symbol.h: Likewise.
* i386/grub/time.h: Likewise.
* i386/grub/types.h: Likewise.
* i386/i386at/acpi.c: Likewise.
* i386/i386at/acpihalt.c: Likewise.
(grub_acpi_halt): Map physical addresses.
* i386/i386at/acpihalt.h: New file.
* i386/grub/glue.h: Some glue macros.
* i386/grub/i18n.h: Stub out i18n.
* i386/i386at/grub_glue.c: Some glue code.
* i386/i386at/model_dep.c (halt_all_cpus): Use grub_acpi_halt.

1 files changed, 220 insertions, 0 deletions

diff --git a/i386/grub/acpi.h b/i386/grub/acpi.h
new file mode 100644
index 00000000..2ac2bd6f
--- /dev/null
+++ b/i386/grub/acpi.h
@@ -0,0 +1,220 @@
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 2009  Free Software Foundation, Inc.
+ *
+ *  GRUB is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  GRUB is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef GRUB_ACPI_HEADER
+#define GRUB_ACPI_HEADER	1
+
+#ifndef GRUB_DSDT_TEST
+#include <grub/types.h>
+#include <grub/err.h>
+#endif
+
+#define GRUB_RSDP_SIGNATURE "RSD PTR "
+#define GRUB_RSDP_SIGNATURE_SIZE 8
+
+struct grub_acpi_rsdp_v10
+{
+  grub_uint8_t signature[GRUB_RSDP_SIGNATURE_SIZE];
+  grub_uint8_t checksum;
+  grub_uint8_t oemid[6];
+  grub_uint8_t revision;
+  grub_uint32_t rsdt_addr;
+} GRUB_PACKED;
+
+struct grub_acpi_rsdp_v20
+{
+  struct grub_acpi_rsdp_v10 rsdpv1;
+  grub_uint32_t length;
+  grub_uint64_t xsdt_addr;
+  grub_uint8_t checksum;
+  grub_uint8_t reserved[3];
+} GRUB_PACKED;
+
+struct grub_acpi_table_header
+{
+  grub_uint8_t signature[4];
+  grub_uint32_t length;
+  grub_uint8_t revision;
+  grub_uint8_t checksum;
+  grub_uint8_t oemid[6];
+  grub_uint8_t oemtable[8];
+  grub_uint32_t oemrev;
+  grub_uint8_t creator_id[4];
+  grub_uint32_t creator_rev;
+} GRUB_PACKED;
+
+#define GRUB_ACPI_FADT_SIGNATURE "FACP"
+
+struct grub_acpi_fadt
+{
+  struct grub_acpi_table_header hdr;
+  grub_uint32_t facs_addr;
+  grub_uint32_t dsdt_addr;
+  grub_uint8_t somefields1[20];
+  grub_uint32_t pm1a;
+  grub_uint8_t somefields2[64];
+  grub_uint64_t facs_xaddr;
+  grub_uint64_t dsdt_xaddr;
+  grub_uint8_t somefields3[96];
+} GRUB_PACKED;
+
+#define GRUB_ACPI_MADT_SIGNATURE "APIC"
+
+struct grub_acpi_madt_entry_header
+{
+  grub_uint8_t type;
+  grub_uint8_t len;
+};
+
+struct grub_acpi_madt
+{
+  struct grub_acpi_table_header hdr;
+  grub_uint32_t lapic_addr;
+  grub_uint32_t flags;
+  struct grub_acpi_madt_entry_header entries[0];
+};
+
+enum
+  {
+    GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC = 0,
+    GRUB_ACPI_MADT_ENTRY_TYPE_IOAPIC = 1,
+    GRUB_ACPI_MADT_ENTRY_TYPE_INTERRUPT_OVERRIDE = 2,
+    GRUB_ACPI_MADT_ENTRY_TYPE_LAPIC_NMI = 4,
+    GRUB_ACPI_MADT_ENTRY_TYPE_SAPIC = 6,
+    GRUB_ACPI_MADT_ENTRY_TYPE_LSAPIC = 7,
+    GRUB_ACPI_MADT_ENTRY_TYPE_PLATFORM_INT_SOURCE = 8
+  };
+
+struct grub_acpi_madt_entry_lapic
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t acpiid;
+  grub_uint8_t apicid;
+  grub_uint32_t flags;
+};
+
+struct grub_acpi_madt_entry_ioapic
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t id;
+  grub_uint8_t pad;
+  grub_uint32_t address;
+  grub_uint32_t global_sys_interrupt;
+};
+
+struct grub_acpi_madt_entry_interrupt_override
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t bus;
+  grub_uint8_t source;
+  grub_uint32_t global_sys_interrupt;
+  grub_uint16_t flags;
+} GRUB_PACKED;
+
+
+struct grub_acpi_madt_entry_lapic_nmi
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t acpiid;
+  grub_uint16_t flags;
+  grub_uint8_t lint;
+} GRUB_PACKED;
+
+struct grub_acpi_madt_entry_sapic
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t id;
+  grub_uint8_t pad;
+  grub_uint32_t global_sys_interrupt_base;
+  grub_uint64_t addr;
+};
+
+struct grub_acpi_madt_entry_lsapic
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint8_t cpu_id;
+  grub_uint8_t id;
+  grub_uint8_t eid;
+  grub_uint8_t pad[3];
+  grub_uint32_t flags;
+  grub_uint32_t cpu_uid;
+  grub_uint8_t cpu_uid_str[0];
+};
+
+struct grub_acpi_madt_entry_platform_int_source
+{
+  struct grub_acpi_madt_entry_header hdr;
+  grub_uint16_t flags;
+  grub_uint8_t inttype;
+  grub_uint8_t cpu_id;
+  grub_uint8_t cpu_eid;
+  grub_uint8_t sapic_vector;
+  grub_uint32_t global_sys_int;
+  grub_uint32_t src_flags;
+};
+
+enum
+  {
+    GRUB_ACPI_MADT_ENTRY_SAPIC_FLAGS_ENABLED = 1
+  };
+
+#ifndef GRUB_DSDT_TEST
+struct grub_acpi_rsdp_v10 *grub_acpi_get_rsdpv1 (void);
+struct grub_acpi_rsdp_v20 *grub_acpi_get_rsdpv2 (void);
+struct grub_acpi_rsdp_v10 *grub_machine_acpi_get_rsdpv1 (void);
+struct grub_acpi_rsdp_v20 *grub_machine_acpi_get_rsdpv2 (void);
+grub_uint8_t grub_byte_checksum (void *base, grub_size_t size);
+
+grub_err_t grub_acpi_create_ebda (void);
+
+void grub_acpi_halt (void);
+#endif
+
+#define GRUB_ACPI_SLP_EN (1 << 13)
+#define GRUB_ACPI_SLP_TYP_OFFSET 10
+
+enum
+  {
+    GRUB_ACPI_OPCODE_ZERO = 0, GRUB_ACPI_OPCODE_ONE = 1,
+    GRUB_ACPI_OPCODE_NAME = 8, GRUB_ACPI_OPCODE_BYTE_CONST = 0x0a,
+    GRUB_ACPI_OPCODE_WORD_CONST = 0x0b,
+    GRUB_ACPI_OPCODE_DWORD_CONST = 0x0c,
+    GRUB_ACPI_OPCODE_STRING_CONST = 0x0d,
+    GRUB_ACPI_OPCODE_SCOPE = 0x10,
+    GRUB_ACPI_OPCODE_BUFFER = 0x11,
+    GRUB_ACPI_OPCODE_PACKAGE = 0x12,
+    GRUB_ACPI_OPCODE_METHOD = 0x14, GRUB_ACPI_OPCODE_EXTOP = 0x5b,
+    GRUB_ACPI_OPCODE_CREATE_WORD_FIELD = 0x8b,
+    GRUB_ACPI_OPCODE_CREATE_BYTE_FIELD = 0x8c,
+    GRUB_ACPI_OPCODE_IF = 0xa0, GRUB_ACPI_OPCODE_ONES = 0xff
+  };
+enum
+  {
+    GRUB_ACPI_EXTOPCODE_MUTEX = 0x01,
+    GRUB_ACPI_EXTOPCODE_EVENT_OP = 0x02,
+    GRUB_ACPI_EXTOPCODE_OPERATION_REGION = 0x80,
+    GRUB_ACPI_EXTOPCODE_FIELD_OP = 0x81,
+    GRUB_ACPI_EXTOPCODE_DEVICE_OP = 0x82,
+    GRUB_ACPI_EXTOPCODE_PROCESSOR_OP = 0x83,
+    GRUB_ACPI_EXTOPCODE_POWER_RES_OP = 0x84,
+    GRUB_ACPI_EXTOPCODE_THERMAL_ZONE_OP = 0x85,
+    GRUB_ACPI_EXTOPCODE_INDEX_FIELD_OP = 0x86,
+    GRUB_ACPI_EXTOPCODE_BANK_FIELD_OP = 0x87,
+  };
+
+#endif /* ! GRUB_ACPI_HEADER */