*
* Authors:
*
* 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 "qemu/osdep.h"
#include "boot-sector.h"
-#include <string.h>
-#include <stdio.h>
#include "qemu-common.h"
#include "libqtest.h"
#define SIGNATURE 0xdead
#define SIGNATURE_OFFSET 0x10
#define BOOT_SECTOR_ADDRESS 0x7c00
+#define SIGNATURE_ADDR (BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET)
-/* Boot sector code: write SIGNATURE into memory,
+/* x86 boot sector code: write SIGNATURE into memory,
* then halt.
- * Q35 machine requires a minimum 0x7e000 bytes disk.
- * (bug or feature?)
*/
-static uint8_t boot_sector[0x7e000] = {
+static uint8_t x86_boot_sector[512] = {
/* The first sector will be placed at RAM address 00007C00, and
* the BIOS transfers control to 00007C00
*/
[0x07] = HIGH(SIGNATURE),
/* 7c08: mov %ax,0x7c10 */
[0x08] = 0xa3,
- [0x09] = LOW(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
- [0x0a] = HIGH(BOOT_SECTOR_ADDRESS + SIGNATURE_OFFSET),
+ [0x09] = LOW(SIGNATURE_ADDR),
+ [0x0a] = HIGH(SIGNATURE_ADDR),
/* 7c0b cli */
[0x0b] = 0xfa,
[0x1FF] = 0xAA,
};
+/* For s390x, use a mini "kernel" with the appropriate signature */
+static const uint8_t s390x_psw[] = {
+ 0x00, 0x08, 0x00, 0x00, 0x80, 0x01, 0x00, 0x00
+};
+static const uint8_t s390x_code[] = {
+ 0xa7, 0xf4, 0x00, 0x0a, /* j 0x10010 */
+ 0x00, 0x00, 0x00, 0x00,
+ 'S', '3', '9', '0',
+ 'E', 'P', 0x00, 0x01,
+ 0xa7, 0x38, HIGH(SIGNATURE_ADDR), LOW(SIGNATURE_ADDR), /* lhi r3,0x7c10 */
+ 0xa7, 0x48, LOW(SIGNATURE), HIGH(SIGNATURE), /* lhi r4,0xadde */
+ 0x40, 0x40, 0x30, 0x00, /* sth r4,0(r3) */
+ 0xa7, 0xf4, 0xff, 0xfa /* j 0x10010 */
+};
+
/* Create boot disk file. */
-int boot_sector_init(const char *fname)
+int boot_sector_init(char *fname)
{
- FILE *f = fopen(fname, "w");
+ int fd, ret;
+ size_t len;
+ char *boot_code;
+ const char *arch = qtest_get_arch();
- if (!f) {
+ fd = mkstemp(fname);
+ if (fd < 0) {
fprintf(stderr, "Couldn't open \"%s\": %s", fname, strerror(errno));
return 1;
}
- fwrite(boot_sector, 1, sizeof boot_sector, f);
- fclose(f);
+
+ if (g_str_equal(arch, "i386") || g_str_equal(arch, "x86_64")) {
+ /* Q35 requires a minimum 0x7e000 bytes disk (bug or feature?) */
+ len = MAX(0x7e000, sizeof(x86_boot_sector));
+ boot_code = g_malloc0(len);
+ memcpy(boot_code, x86_boot_sector, sizeof(x86_boot_sector));
+ } else if (g_str_equal(arch, "ppc64")) {
+ /* For Open Firmware based system, use a Forth script */
+ boot_code = g_strdup_printf("\\ Bootscript\n%x %x c! %x %x c!\n",
+ LOW(SIGNATURE), SIGNATURE_ADDR,
+ HIGH(SIGNATURE), SIGNATURE_ADDR + 1);
+ len = strlen(boot_code);
+ } else if (g_str_equal(arch, "s390x")) {
+ len = 0x10000 + sizeof(s390x_code);
+ boot_code = g_malloc0(len);
+ memcpy(boot_code, s390x_psw, sizeof(s390x_psw));
+ memcpy(&boot_code[0x10000], s390x_code, sizeof(s390x_code));
+ } else {
+ g_assert_not_reached();
+ }
+
+ ret = write(fd, boot_code, len);
+ close(fd);
+
+ g_free(boot_code);
+
+ if (ret != len) {
+ fprintf(stderr, "Could not write \"%s\"", fname);
+ return 1;
+ }
+
return 0;
}
/* Loop until signature in memory is OK. */
-void boot_sector_test(void)
+void boot_sector_test(QTestState *qts)
{
uint8_t signature_low;
uint8_t signature_high;
uint16_t signature;
int i;
- /* Wait at most 1 minute */
+ /* Wait at most 600 seconds (test is slow with TCI and --enable-debug) */
#define TEST_DELAY (1 * G_USEC_PER_SEC / 10)
-#define TEST_CYCLES MAX((60 * G_USEC_PER_SEC / TEST_DELAY), 1)
+#define TEST_CYCLES MAX((600 * 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_low = qtest_readb(qts, SIGNATURE_ADDR);
+ signature_high = qtest_readb(qts, SIGNATURE_ADDR + 1);
signature = (signature_high << 8) | signature_low;
if (signature == SIGNATURE) {
break;