LXR qemu/tests/acpi-utils.h

   1/*
   2 * Utilities for working with ACPI tables
   3 *
   4 * Copyright (c) 2013 Red Hat Inc.
   5 *
   6 * Authors:
   7 *  Michael S. Tsirkin <mst@redhat.com>,
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10 * See the COPYING file in the top-level directory.
  11 */
  12
  13#ifndef TEST_ACPI_UTILS_H
  14#define TEST_ACPI_UTILS_H
  15
  16#include "hw/acpi/acpi-defs.h"
  17#include "libqtest.h"
  18
  19/* DSDT and SSDTs format */
  20typedef struct {
  21    AcpiTableHeader header;
  22    gchar *aml;            /* aml bytecode from guest */
  23    gsize aml_len;
  24    gchar *aml_file;
  25    gchar *asl;            /* asl code generated from aml */
  26    gsize asl_len;
  27    gchar *asl_file;
  28    bool tmp_files_retain;   /* do not delete the temp asl/aml */
  29} AcpiSdtTable;
  30
  31#define ACPI_READ_FIELD(field, addr)            \
  32    do {                                        \
  33        memread(addr, &field, sizeof(field));   \
  34        addr += sizeof(field);                  \
  35    } while (0)
  36
  37#define ACPI_READ_ARRAY_PTR(arr, length, addr)  \
  38    do {                                        \
  39        int idx;                                \
  40        for (idx = 0; idx < length; ++idx) {    \
  41            ACPI_READ_FIELD(arr[idx], addr);    \
  42        }                                       \
  43    } while (0)
  44
  45#define ACPI_READ_ARRAY(arr, addr)                               \
  46    ACPI_READ_ARRAY_PTR(arr, sizeof(arr) / sizeof(arr[0]), addr)
  47
  48#define ACPI_READ_TABLE_HEADER(table, addr)                      \
  49    do {                                                         \
  50        ACPI_READ_FIELD((table)->signature, addr);               \
  51        ACPI_READ_FIELD((table)->length, addr);                  \
  52        ACPI_READ_FIELD((table)->revision, addr);                \
  53        ACPI_READ_FIELD((table)->checksum, addr);                \
  54        ACPI_READ_ARRAY((table)->oem_id, addr);                  \
  55        ACPI_READ_ARRAY((table)->oem_table_id, addr);            \
  56        ACPI_READ_FIELD((table)->oem_revision, addr);            \
  57        ACPI_READ_ARRAY((table)->asl_compiler_id, addr);         \
  58        ACPI_READ_FIELD((table)->asl_compiler_revision, addr);   \
  59    } while (0)
  60
  61#define ACPI_ASSERT_CMP(actual, expected) do { \
  62    char ACPI_ASSERT_CMP_str[5] = {}; \
  63    memcpy(ACPI_ASSERT_CMP_str, &actual, 4); \
  64    g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
  65} while (0)
  66
  67#define ACPI_ASSERT_CMP64(actual, expected) do { \
  68    char ACPI_ASSERT_CMP_str[9] = {}; \
  69    memcpy(ACPI_ASSERT_CMP_str, &actual, 8); \
  70    g_assert_cmpstr(ACPI_ASSERT_CMP_str, ==, expected); \
  71} while (0)
  72
  73#define ACPI_READ_GENERIC_ADDRESS(field, addr)       \
  74    do {                                             \
  75        ACPI_READ_FIELD((field).space_id, addr);     \
  76        ACPI_READ_FIELD((field).bit_width, addr);    \
  77        ACPI_READ_FIELD((field).bit_offset, addr);   \
  78        ACPI_READ_FIELD((field).access_width, addr); \
  79        ACPI_READ_FIELD((field).address, addr);      \
  80    } while (0)
  81
  82
  83uint8_t acpi_calc_checksum(const uint8_t *data, int len);
  84uint32_t acpi_find_rsdp_address(void);
  85void acpi_parse_rsdp_table(uint32_t addr, AcpiRsdpDescriptor *rsdp_table);
  86
  87#endif  /* TEST_ACPI_UTILS_H */
  88