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/*
* Boot order test cases.
*
* Copyright (c) 2013 Red Hat Inc.
*
* Authors:
* Michael S. Tsirkin <mst@redhat.com>,
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include <string.h>
#include <stdio.h>
#include <glib.h>
#include "libqtest.h"
typedef struct {
const char *args;
uint64_t expected_boot;
uint64_t expected_reboot;
} boot_order_test;
#define LOW(x) ((x) & 0xff)
#define HIGH(x) ((x) >> 8)
#define SIGNATURE 0xdead
#define SIGNATURE_OFFSET 0x10
#define BOOT_SECTOR_ADDRESS 0x7c00
/* Boot sector code: write SIGNATURE into memory,
* then halt.
*/
static uint8_t boot_sector[0x200] = {
/* 7c00: mov $0xdead,%ax */
[0x00] = 0xb8,
[0x01] = LOW(SIGNATURE),
[0x02] = HIGH(SIGNATURE),
/* 7c03: mov %ax,0x7c10 */
[0x03] = 0xa3,
[0x04] = LOW(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
[0x05] = HIGH(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
/* 7c06: cli */
[0x06] = 0xfa,
/* 7c07: hlt */
[0x07] = 0xf4,
/* 7c08: jmp 0x7c07=0x7c0a-3 */
[0x08] = 0xeb,
[0x09] = LOW(-3),
/* We mov 0xdead here: set value to make debugging easier */
[SIGNATURE_OFFSET] = LOW(0xface),
[SIGNATURE_OFFSET + 1] = HIGH(0xface),
/* End of boot sector marker */
[0x1FE] = 0x55,
[0x1FF] = 0xAA,
};
static const char *disk = "tests/acpi-test-disk.raw";
static void test_acpi_one(const char *params)
{
char *args;
uint8_t signature_low;
uint8_t signature_high;
uint16_t signature;
int i;
uint32_t off;
args = g_strdup_printf("-net none -display none %s %s",
params ? params : "", disk);
qtest_start(args);
/* Wait at most 1 minute */
#define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
#define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
/* Poll until code has run and modified memory. Once it has we know BIOS
* initialization is done. TODO: check that IP reached the halt
* instruction.
*/
for (i = 0; i < TEST_CYCLES; ++i) {
signature_low = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET);
signature_high = readb(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET + 1);
signature = (signature_high << 8) | signature_low;
if (signature == SIGNATURE) {
break;
}
g_usleep(TEST_DELAY);
}
g_assert_cmphex(signature, ==, SIGNATURE);
/* OK, now find RSDP */
for (off = 0xf0000; off < 0x100000; off += 0x10)
{
uint8_t sig[] = "RSD PTR ";
int i;
for (i = 0; i < sizeof sig - 1; ++i) {
sig[i] = readb(off + i);
}
if (!memcmp(sig, "RSD PTR ", sizeof sig)) {
break;
}
}
g_assert_cmphex(off, <, 0x100000);
qtest_quit(global_qtest);
g_free(args);
}
static void test_acpi_tcg(void)
{
/* Supplying -machine accel argument overrides the default (qtest).
* This is to make guest actually run.
*/
test_acpi_one("-machine accel=tcg");
}
int main(int argc, char *argv[])
{
const char *arch = qtest_get_arch();
FILE *f = fopen(disk, "w");
fwrite(boot_sector, 1, sizeof boot_sector, f);
fclose(f);
g_test_init(&argc, &argv, NULL);
if (strcmp(arch, "i386") == 0 || strcmp(arch, "x86_64") == 0) {
qtest_add_func("acpi/tcg", test_acpi_tcg);
}
return g_test_run();
}
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