source: trunk/hal/x86_64/hal_acpi.h @ 35

Last change on this file since 35 was 35, checked in by max@…, 5 years ago

Update:

  • Introduce a basic VM manager in hal_gpt.c, to create the initial page tree for cluster0.
  • Locate the ACPI RSDP table, which involves entering the PA into cluster0's VA space.

The definitions are still a bit messy, but they will be reorganized later.

File size: 1.7 KB
Line 
1/*
2 * hal_acpi.h - ACPI-specific values and structures
3 *
4 * Copyright (c) 2017 Maxime Villard
5 *
6 * This file is part of ALMOS-MKH.
7 *
8 * ALMOS-MKH is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2.0 of the License.
11 *
12 * ALMOS-MKH is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with ALMOS-MKH.; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22void hal_acpi_init();
23
24#define ACPI_RSDP_ALIGN 16
25#define ACPI_RSDP_SIGNATURE     "RSD PTR "
26#define ACPI_RSDP_SIGNATURE_SIZE        8
27
28#define ACPI_OEM_ID_SIZE        6
29
30struct acpi_table_rsdp {
31        char Signature[8];               /* ACPI signature, contains "RSD PTR " */
32        uint8_t Checksum;                /* ACPI 1.0 checksum */
33        char OemId[ACPI_OEM_ID_SIZE];    /* OEM identification */
34        uint8_t Revision;                /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
35        uint32_t RsdtPhysicalAddress;    /* 32-bit physical address of the RSDT */
36        uint32_t Length;                 /* Table length in bytes, including header (ACPI 2.0+) */
37        uint64_t XsdtPhysicalAddress;    /* 64-bit physical address of the XSDT (ACPI 2.0+) */
38        uint8_t ExtendedChecksum;        /* Checksum of entire table (ACPI 2.0+) */
39        uint8_t Reserved[3];             /* Reserved, must be zero */
40} __packed;
41
42typedef struct acpi_table_rsdp  rsdp_t;
Note: See TracBrowser for help on using the repository browser.