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/*
* Test serial output of some machines.
*
* Copyright 2016 Thomas Huth, Red Hat Inc.
*
* This work is licensed under the terms of the GNU GPL, version 2
* or later. See the COPYING file in the top-level directory.
*
* This test is used to check that the serial output of the firmware
* (that we provide for some machines) or some small mini-kernels that
* we provide here contains an expected string. Thus we check that the
* firmware/kernel still boots at least to a certain point and so we
* know that the machine is not completely broken.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
static const uint8_t kernel_mcf5208[] = {
0x41, 0xf9, 0xfc, 0x06, 0x00, 0x00, /* lea 0xfc060000,%a0 */
0x10, 0x3c, 0x00, 0x54, /* move.b #'T',%d0 */
0x11, 0x7c, 0x00, 0x04, 0x00, 0x08, /* move.b #4,8(%a0) Enable TX */
0x11, 0x40, 0x00, 0x0c, /* move.b %d0,12(%a0) Print 'T' */
0x60, 0xfa /* bra.s loop */
};
static const uint8_t kernel_pls3adsp1800[] = {
0xb0, 0x00, 0x84, 0x00, /* imm 0x8400 */
0x30, 0x60, 0x00, 0x04, /* addik r3,r0,4 */
0x30, 0x80, 0x00, 0x54, /* addik r4,r0,'T' */
0xf0, 0x83, 0x00, 0x00, /* sbi r4,r3,0 */
0xb8, 0x00, 0xff, 0xfc /* bri -4 loop */
};
static const uint8_t kernel_plml605[] = {
0xe0, 0x83, 0x00, 0xb0, /* imm 0x83e0 */
0x00, 0x10, 0x60, 0x30, /* addik r3,r0,0x1000 */
0x54, 0x00, 0x80, 0x30, /* addik r4,r0,'T' */
0x00, 0x00, 0x83, 0xf0, /* sbi r4,r3,0 */
0xfc, 0xff, 0x00, 0xb8 /* bri -4 loop */
};
static const uint8_t bios_moxiesim[] = {
0x20, 0x10, 0x00, 0x00, 0x03, 0xf8, /* ldi.s r1,0x3f8 */
0x1b, 0x20, 0x00, 0x00, 0x00, 0x54, /* ldi.b r2,'T' */
0x1e, 0x12, /* st.b r1,r2 */
0x1a, 0x00, 0x00, 0x00, 0x10, 0x00 /* jmpa 0x1000 */
};
static const uint8_t bios_raspi2[] = {
0x08, 0x30, 0x9f, 0xe5, /* ldr r3,[pc,#8] Get base */
0x54, 0x20, 0xa0, 0xe3, /* mov r2,#'T' */
0x00, 0x20, 0xc3, 0xe5, /* strb r2,[r3] */
0xfb, 0xff, 0xff, 0xea, /* b loop */
0x00, 0x10, 0x20, 0x3f, /* 0x3f201000 = UART0 base addr */
};
typedef struct testdef {
const char *arch; /* Target architecture */
const char *machine; /* Name of the machine */
const char *extra; /* Additional parameters */
const char *expect; /* Expected string in the serial output */
size_t codesize; /* Size of the kernel or bios data */
const uint8_t *kernel; /* Set in case we use our own mini kernel */
const uint8_t *bios; /* Set in case we use our own mini bios */
} testdef_t;
static testdef_t tests[] = {
{ "alpha", "clipper", "", "PCI:" },
{ "ppc", "ppce500", "", "U-Boot" },
{ "ppc", "prep", "", "Open Hack'Ware BIOS" },
{ "ppc64", "ppce500", "", "U-Boot" },
{ "ppc64", "prep", "", "Open Hack'Ware BIOS" },
{ "ppc64", "pseries", "", "Open Firmware" },
{ "ppc64", "powernv", "-cpu POWER8", "OPAL" },
{ "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
{ "i386", "pc", "-device sga", "SGABIOS" },
{ "i386", "q35", "-device sga", "SGABIOS" },
{ "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
{ "x86_64", "q35", "-device sga", "SGABIOS" },
{ "s390x", "s390-ccw-virtio",
"-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
{ "m68k", "mcf5208evb", "", "TT", sizeof(kernel_mcf5208), kernel_mcf5208 },
{ "microblaze", "petalogix-s3adsp1800", "", "TT",
sizeof(kernel_pls3adsp1800), kernel_pls3adsp1800 },
{ "microblazeel", "petalogix-ml605", "", "TT",
sizeof(kernel_plml605), kernel_plml605 },
{ "moxie", "moxiesim", "", "TT", sizeof(bios_moxiesim), 0, bios_moxiesim },
{ "arm", "raspi2", "", "TT", sizeof(bios_raspi2), 0, bios_raspi2 },
{ NULL }
};
static void check_guest_output(const testdef_t *test, int fd)
{
bool output_ok = false;
int i, nbr, pos = 0, ccnt;
char ch;
/* Poll serial output... Wait at most 60 seconds */
for (i = 0; i < 6000; ++i) {
ccnt = 0;
while ((nbr = read(fd, &ch, 1)) == 1 && ccnt++ < 512) {
if (ch == test->expect[pos]) {
pos += 1;
if (test->expect[pos] == '\0') {
/* We've reached the end of the expected string! */
output_ok = true;
goto done;
}
} else {
pos = 0;
}
}
g_assert(nbr >= 0);
g_usleep(10000);
}
done:
g_assert(output_ok);
}
static void test_machine(const void *data)
{
const testdef_t *test = data;
char serialtmp[] = "/tmp/qtest-boot-serial-sXXXXXX";
char codetmp[] = "/tmp/qtest-boot-serial-cXXXXXX";
const char *codeparam = "";
const uint8_t *code = NULL;
int ser_fd;
ser_fd = mkstemp(serialtmp);
g_assert(ser_fd != -1);
if (test->kernel) {
code = test->kernel;
codeparam = "-kernel";
} else if (test->bios) {
code = test->bios;
codeparam = "-bios";
}
if (code) {
ssize_t wlen;
int code_fd;
code_fd = mkstemp(codetmp);
g_assert(code_fd != -1);
wlen = write(code_fd, code, test->codesize);
g_assert(wlen == test->codesize);
close(code_fd);
}
/*
* Make sure that this test uses tcg if available: It is used as a
* fast-enough smoketest for that.
*/
global_qtest = qtest_startf("%s %s -M %s,accel=tcg:kvm "
"-chardev file,id=serial0,path=%s "
"-no-shutdown -serial chardev:serial0 %s",
codeparam, code ? codetmp : "",
test->machine, serialtmp, test->extra);
unlink(serialtmp);
if (code) {
unlink(codetmp);
}
check_guest_output(test, ser_fd);
qtest_quit(global_qtest);
close(ser_fd);
}
int main(int argc, char *argv[])
{
const char *arch = qtest_get_arch();
int i;
g_test_init(&argc, &argv, NULL);
for (i = 0; tests[i].arch != NULL; i++) {
if (strcmp(arch, tests[i].arch) == 0) {
char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
qtest_add_data_func(name, &tests[i], test_machine);
g_free(name);
}
}
return g_test_run();
}
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