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/*
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* Boot order test cases.
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*
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* Copyright (c) 2013 Red Hat Inc.
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*
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* Authors:
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* Michael S. Tsirkin <mst@redhat.com>,
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include <string.h> |
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#include <stdio.h> |
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#include <glib.h> |
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#include "qemu-common.h" |
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#include "libqtest.h" |
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#include "qemu/compiler.h" |
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#include "hw/i386/acpi-defs.h" |
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/* DSDT and SSDTs format */
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typedef struct { |
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AcpiTableHeader header; |
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uint8_t *aml; |
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int aml_len;
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} AcpiSdtTable; |
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typedef struct { |
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uint32_t rsdp_addr; |
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AcpiRsdpDescriptor rsdp_table; |
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AcpiRsdtDescriptorRev1 rsdt_table; |
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AcpiFadtDescriptorRev1 fadt_table; |
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AcpiFacsDescriptorRev1 facs_table; |
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uint32_t *rsdt_tables_addr; |
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int rsdt_tables_nr;
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AcpiSdtTable dsdt_table; |
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GArray *ssdt_tables; |
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} test_data; |
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#define LOW(x) ((x) & 0xff) |
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#define HIGH(x) ((x) >> 8) |
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#define SIGNATURE 0xdead |
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#define SIGNATURE_OFFSET 0x10 |
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#define BOOT_SECTOR_ADDRESS 0x7c00 |
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#define ACPI_READ_FIELD(field, addr) \
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do { \
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switch (sizeof(field)) { \ |
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case 1: \ |
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field = readb(addr); \ |
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break; \
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case 2: \ |
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field = le16_to_cpu(readw(addr)); \ |
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break; \
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case 4: \ |
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field = le32_to_cpu(readl(addr)); \ |
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break; \
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case 8: \ |
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field = le64_to_cpu(readq(addr)); \ |
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break; \
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default: \
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g_assert(false); \
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} \ |
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addr += sizeof(field); \
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} while (0); |
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#define ACPI_READ_ARRAY_PTR(arr, length, addr) \
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do { \
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int idx; \
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for (idx = 0; idx < length; ++idx) { \ |
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ACPI_READ_FIELD(arr[idx], addr); \ |
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} \ |
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} while (0); |
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#define ACPI_READ_ARRAY(arr, addr) \
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ACPI_READ_ARRAY_PTR(arr, sizeof(arr)/sizeof(arr[0]), addr) |
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#define ACPI_READ_TABLE_HEADER(table, addr) \
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do { \
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ACPI_READ_FIELD((table)->signature, addr); \ |
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ACPI_READ_FIELD((table)->length, addr); \ |
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ACPI_READ_FIELD((table)->revision, addr); \ |
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ACPI_READ_FIELD((table)->checksum, addr); \ |
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ACPI_READ_ARRAY((table)->oem_id, addr); \ |
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ACPI_READ_ARRAY((table)->oem_table_id, addr); \ |
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ACPI_READ_FIELD((table)->oem_revision, addr); \ |
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ACPI_READ_ARRAY((table)->asl_compiler_id, addr); \ |
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ACPI_READ_FIELD((table)->asl_compiler_revision, addr); \ |
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} while (0); |
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/* Boot sector code: write SIGNATURE into memory,
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* then halt.
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*/
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static uint8_t boot_sector[0x200] = { |
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/* 7c00: mov $0xdead,%ax */
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[0x00] = 0xb8, |
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[0x01] = LOW(SIGNATURE),
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[0x02] = HIGH(SIGNATURE),
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/* 7c03: mov %ax,0x7c10 */
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[0x03] = 0xa3, |
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[0x04] = LOW(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
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[0x05] = HIGH(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
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/* 7c06: cli */
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[0x06] = 0xfa, |
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/* 7c07: hlt */
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[0x07] = 0xf4, |
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/* 7c08: jmp 0x7c07=0x7c0a-3 */
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[0x08] = 0xeb, |
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[0x09] = LOW(-3), |
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/* We mov 0xdead here: set value to make debugging easier */
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[SIGNATURE_OFFSET] = LOW(0xface),
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[SIGNATURE_OFFSET + 1] = HIGH(0xface), |
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/* End of boot sector marker */
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[0x1FE] = 0x55, |
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[0x1FF] = 0xAA, |
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}; |
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static const char *disk = "tests/acpi-test-disk.raw"; |
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static void free_test_data(test_data *data) |
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{ |
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int i;
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g_free(data->rsdt_tables_addr); |
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for (i = 0; i < data->ssdt_tables->len; ++i) { |
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g_free(g_array_index(data->ssdt_tables, AcpiSdtTable, i).aml); |
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} |
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g_array_free(data->ssdt_tables, false);
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g_free(data->dsdt_table.aml); |
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} |
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static uint8_t acpi_checksum(const uint8_t *data, int len) |
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{ |
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int i;
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uint8_t sum = 0;
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for (i = 0; i < len; i++) { |
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sum += data[i]; |
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} |
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return sum;
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} |
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static void test_acpi_rsdp_address(test_data *data) |
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{ |
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uint32_t off; |
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/* OK, now find RSDP */
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for (off = 0xf0000; off < 0x100000; off += 0x10) { |
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uint8_t sig[] = "RSD PTR ";
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int i;
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for (i = 0; i < sizeof sig - 1; ++i) { |
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sig[i] = readb(off + i); |
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} |
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if (!memcmp(sig, "RSD PTR ", sizeof sig)) { |
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break;
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} |
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} |
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g_assert_cmphex(off, <, 0x100000);
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data->rsdp_addr = off; |
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} |
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static void test_acpi_rsdp_table(test_data *data) |
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{ |
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AcpiRsdpDescriptor *rsdp_table = &data->rsdp_table; |
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uint32_t addr = data->rsdp_addr; |
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ACPI_READ_FIELD(rsdp_table->signature, addr); |
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g_assert_cmphex(rsdp_table->signature, ==, ACPI_RSDP_SIGNATURE); |
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ACPI_READ_FIELD(rsdp_table->checksum, addr); |
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ACPI_READ_ARRAY(rsdp_table->oem_id, addr); |
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ACPI_READ_FIELD(rsdp_table->revision, addr); |
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ACPI_READ_FIELD(rsdp_table->rsdt_physical_address, addr); |
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ACPI_READ_FIELD(rsdp_table->length, addr); |
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/* rsdp checksum is not for the whole table, but for the first 20 bytes */
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g_assert(!acpi_checksum((uint8_t *)rsdp_table, 20));
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} |
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static void test_acpi_rsdt_table(test_data *data) |
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{ |
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AcpiRsdtDescriptorRev1 *rsdt_table = &data->rsdt_table; |
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uint32_t addr = data->rsdp_table.rsdt_physical_address; |
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uint32_t *tables; |
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int tables_nr;
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uint8_t checksum; |
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/* read the header */
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ACPI_READ_TABLE_HEADER(rsdt_table, addr); |
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g_assert_cmphex(rsdt_table->signature, ==, ACPI_RSDT_SIGNATURE); |
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/* compute the table entries in rsdt */
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tables_nr = (rsdt_table->length - sizeof(AcpiRsdtDescriptorRev1)) /
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sizeof(uint32_t);
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g_assert_cmpint(tables_nr, >, 0);
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/* get the addresses of the tables pointed by rsdt */
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tables = g_new0(uint32_t, tables_nr); |
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ACPI_READ_ARRAY_PTR(tables, tables_nr, addr); |
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checksum = acpi_checksum((uint8_t *)rsdt_table, rsdt_table->length) + |
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acpi_checksum((uint8_t *)tables, tables_nr * sizeof(uint32_t));
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g_assert(!checksum); |
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/* SSDT tables after FADT */
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data->rsdt_tables_addr = tables; |
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data->rsdt_tables_nr = tables_nr; |
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} |
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static void test_acpi_fadt_table(test_data *data) |
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{ |
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AcpiFadtDescriptorRev1 *fadt_table = &data->fadt_table; |
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uint32_t addr; |
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/* FADT table comes first */
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addr = data->rsdt_tables_addr[0];
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ACPI_READ_TABLE_HEADER(fadt_table, addr); |
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ACPI_READ_FIELD(fadt_table->firmware_ctrl, addr); |
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ACPI_READ_FIELD(fadt_table->dsdt, addr); |
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ACPI_READ_FIELD(fadt_table->model, addr); |
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ACPI_READ_FIELD(fadt_table->reserved1, addr); |
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ACPI_READ_FIELD(fadt_table->sci_int, addr); |
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ACPI_READ_FIELD(fadt_table->smi_cmd, addr); |
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ACPI_READ_FIELD(fadt_table->acpi_enable, addr); |
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ACPI_READ_FIELD(fadt_table->acpi_disable, addr); |
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ACPI_READ_FIELD(fadt_table->S4bios_req, addr); |
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ACPI_READ_FIELD(fadt_table->reserved2, addr); |
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ACPI_READ_FIELD(fadt_table->pm1a_evt_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm1b_evt_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm1a_cnt_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm1b_cnt_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm2_cnt_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm_tmr_blk, addr); |
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ACPI_READ_FIELD(fadt_table->gpe0_blk, addr); |
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ACPI_READ_FIELD(fadt_table->gpe1_blk, addr); |
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ACPI_READ_FIELD(fadt_table->pm1_evt_len, addr); |
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ACPI_READ_FIELD(fadt_table->pm1_cnt_len, addr); |
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ACPI_READ_FIELD(fadt_table->pm2_cnt_len, addr); |
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ACPI_READ_FIELD(fadt_table->pm_tmr_len, addr); |
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ACPI_READ_FIELD(fadt_table->gpe0_blk_len, addr); |
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ACPI_READ_FIELD(fadt_table->gpe1_blk_len, addr); |
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ACPI_READ_FIELD(fadt_table->gpe1_base, addr); |
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ACPI_READ_FIELD(fadt_table->reserved3, addr); |
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ACPI_READ_FIELD(fadt_table->plvl2_lat, addr); |
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ACPI_READ_FIELD(fadt_table->plvl3_lat, addr); |
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ACPI_READ_FIELD(fadt_table->flush_size, addr); |
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ACPI_READ_FIELD(fadt_table->flush_stride, addr); |
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ACPI_READ_FIELD(fadt_table->duty_offset, addr); |
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ACPI_READ_FIELD(fadt_table->duty_width, addr); |
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ACPI_READ_FIELD(fadt_table->day_alrm, addr); |
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ACPI_READ_FIELD(fadt_table->mon_alrm, addr); |
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ACPI_READ_FIELD(fadt_table->century, addr); |
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ACPI_READ_FIELD(fadt_table->reserved4, addr); |
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ACPI_READ_FIELD(fadt_table->reserved4a, addr); |
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ACPI_READ_FIELD(fadt_table->reserved4b, addr); |
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ACPI_READ_FIELD(fadt_table->flags, addr); |
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g_assert_cmphex(fadt_table->signature, ==, ACPI_FACP_SIGNATURE); |
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g_assert(!acpi_checksum((uint8_t *)fadt_table, fadt_table->length)); |
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} |
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static void test_acpi_facs_table(test_data *data) |
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{ |
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AcpiFacsDescriptorRev1 *facs_table = &data->facs_table; |
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uint32_t addr = data->fadt_table.firmware_ctrl; |
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ACPI_READ_FIELD(facs_table->signature, addr); |
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ACPI_READ_FIELD(facs_table->length, addr); |
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ACPI_READ_FIELD(facs_table->hardware_signature, addr); |
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ACPI_READ_FIELD(facs_table->firmware_waking_vector, addr); |
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ACPI_READ_FIELD(facs_table->global_lock, addr); |
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ACPI_READ_FIELD(facs_table->flags, addr); |
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ACPI_READ_ARRAY(facs_table->resverved3, addr); |
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g_assert_cmphex(facs_table->signature, ==, ACPI_FACS_SIGNATURE); |
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} |
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static void test_dst_table(AcpiSdtTable *sdt_table, uint32_t addr) |
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{ |
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uint8_t checksum; |
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ACPI_READ_TABLE_HEADER(&sdt_table->header, addr); |
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sdt_table->aml_len = sdt_table->header.length - sizeof(AcpiTableHeader);
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sdt_table->aml = g_malloc0(sdt_table->aml_len); |
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ACPI_READ_ARRAY_PTR(sdt_table->aml, sdt_table->aml_len, addr); |
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checksum = acpi_checksum((uint8_t *)sdt_table, sizeof(AcpiTableHeader)) +
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acpi_checksum(sdt_table->aml, sdt_table->aml_len); |
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g_assert(!checksum); |
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} |
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static void test_acpi_dsdt_table(test_data *data) |
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{ |
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AcpiSdtTable *dsdt_table = &data->dsdt_table; |
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uint32_t addr = data->fadt_table.dsdt; |
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test_dst_table(dsdt_table, addr); |
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g_assert_cmphex(dsdt_table->header.signature, ==, ACPI_DSDT_SIGNATURE); |
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} |
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static void test_acpi_ssdt_tables(test_data *data) |
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{ |
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GArray *ssdt_tables; |
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int ssdt_tables_nr = data->rsdt_tables_nr - 1; /* fadt is first */ |
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int i;
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ssdt_tables = g_array_sized_new(false, true, sizeof(AcpiSdtTable), |
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ssdt_tables_nr); |
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for (i = 0; i < ssdt_tables_nr; i++) { |
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AcpiSdtTable ssdt_table; |
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uint32_t addr = data->rsdt_tables_addr[i + 1]; /* fadt is first */ |
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test_dst_table(&ssdt_table, addr); |
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g_array_append_val(ssdt_tables, ssdt_table); |
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} |
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data->ssdt_tables = ssdt_tables; |
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} |
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static void test_acpi_one(const char *params, test_data *data) |
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{ |
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char *args;
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uint8_t signature_low; |
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uint8_t signature_high; |
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uint16_t signature; |
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int i;
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memset(data, 0, sizeof(*data)); |
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args = g_strdup_printf("-net none -display none %s %s",
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params ? params : "", disk);
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qtest_start(args); |
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/* Wait at most 1 minute */
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#define TEST_DELAY (1 * G_USEC_PER_SEC / 10) |
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#define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1) |
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/* Poll until code has run and modified memory. Once it has we know BIOS
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* initialization is done. TODO: check that IP reached the halt
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* instruction.
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*/
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for (i = 0; i < TEST_CYCLES; ++i) { |
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signature_low = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET); |
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signature_high = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1);
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signature = (signature_high << 8) | signature_low;
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if (signature == SIGNATURE) {
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break;
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} |
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g_usleep(TEST_DELAY); |
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} |
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g_assert_cmphex(signature, ==, SIGNATURE); |
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test_acpi_rsdp_address(data); |
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test_acpi_rsdp_table(data); |
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test_acpi_rsdt_table(data); |
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test_acpi_fadt_table(data); |
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test_acpi_facs_table(data); |
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test_acpi_dsdt_table(data); |
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test_acpi_ssdt_tables(data); |
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|
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qtest_quit(global_qtest); |
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g_free(args); |
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} |
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|
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static void test_acpi_tcg(void) |
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{ |
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test_data data; |
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/* Supplying -machine accel argument overrides the default (qtest).
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* This is to make guest actually run.
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*/
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test_acpi_one("-machine accel=tcg", &data);
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free_test_data(&data); |
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} |
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int main(int argc, char *argv[]) |
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{ |
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const char *arch = qtest_get_arch(); |
384 |
FILE *f = fopen(disk, "w");
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fwrite(boot_sector, 1, sizeof boot_sector, f); |
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fclose(f); |
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g_test_init(&argc, &argv, NULL);
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|
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if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) { |
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qtest_add_func("acpi/tcg", test_acpi_tcg);
|
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} |
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return g_test_run();
|
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} |