92b540dac9
If the guest continuesly writes characters to the UART, we never leave the inner while loop and thus never check whether we've reached the timeout value. So if we fail to find the expected string in the UART output, the test just hangs and never finishs. Use a counter to regularly break out of the while loop to check the timeout. Signed-off-by: Thomas Huth <thuth@redhat.com> Message-Id: <1512031988-32490-2-git-send-email-thuth@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
114 lines
3.4 KiB
C
114 lines
3.4 KiB
C
/*
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* Test serial output of some machines.
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*
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* Copyright 2016 Thomas Huth, Red Hat Inc.
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*
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* This work is licensed under the terms of the GNU GPL, version 2
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* or later. See the COPYING file in the top-level directory.
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*
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* This test is used to check that the serial output of the firmware
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* (that we provide for some machines) contains an expected string.
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* Thus we check that the firmware still boots at least to a certain
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* point and so we know that the machine is not completely broken.
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*/
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#include "qemu/osdep.h"
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#include "libqtest.h"
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typedef struct testdef {
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const char *arch; /* Target architecture */
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const char *machine; /* Name of the machine */
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const char *extra; /* Additional parameters */
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const char *expect; /* Expected string in the serial output */
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} testdef_t;
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static testdef_t tests[] = {
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{ "alpha", "clipper", "", "PCI:" },
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{ "ppc", "ppce500", "", "U-Boot" },
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{ "ppc", "prep", "", "Open Hack'Ware BIOS" },
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{ "ppc64", "ppce500", "", "U-Boot" },
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{ "ppc64", "prep", "", "Open Hack'Ware BIOS" },
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{ "ppc64", "pseries", "", "Open Firmware" },
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{ "ppc64", "powernv", "-cpu POWER8", "SkiBoot" },
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{ "i386", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
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{ "i386", "pc", "-device sga", "SGABIOS" },
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{ "i386", "q35", "-device sga", "SGABIOS" },
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{ "x86_64", "isapc", "-cpu qemu32 -device sga", "SGABIOS" },
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{ "x86_64", "q35", "-device sga", "SGABIOS" },
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{ "s390x", "s390-ccw-virtio",
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"-nodefaults -device sclpconsole,chardev=serial0", "virtio device" },
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{ NULL }
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};
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static void check_guest_output(const testdef_t *test, int fd)
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{
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bool output_ok = false;
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int i, nbr, pos = 0, ccnt;
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char ch;
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/* Poll serial output... Wait at most 60 seconds */
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for (i = 0; i < 6000; ++i) {
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ccnt = 0;
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while ((nbr = read(fd, &ch, 1)) == 1 && ccnt++ < 512) {
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if (ch == test->expect[pos]) {
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pos += 1;
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if (test->expect[pos] == '\0') {
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/* We've reached the end of the expected string! */
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output_ok = true;
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goto done;
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}
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} else {
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pos = 0;
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}
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}
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g_assert(nbr >= 0);
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g_usleep(10000);
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}
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done:
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g_assert(output_ok);
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}
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static void test_machine(const void *data)
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{
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const testdef_t *test = data;
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char tmpname[] = "/tmp/qtest-boot-serial-XXXXXX";
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int fd;
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fd = mkstemp(tmpname);
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g_assert(fd != -1);
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/*
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* Make sure that this test uses tcg if available: It is used as a
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* fast-enough smoketest for that.
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*/
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global_qtest = qtest_startf("-M %s,accel=tcg:kvm "
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"-chardev file,id=serial0,path=%s "
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"-no-shutdown -serial chardev:serial0 %s",
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test->machine, tmpname, test->extra);
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unlink(tmpname);
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check_guest_output(test, fd);
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qtest_quit(global_qtest);
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close(fd);
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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();
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int i;
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g_test_init(&argc, &argv, NULL);
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for (i = 0; tests[i].arch != NULL; i++) {
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if (strcmp(arch, tests[i].arch) == 0) {
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char *name = g_strdup_printf("boot-serial/%s", tests[i].machine);
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qtest_add_data_func(name, &tests[i], test_machine);
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g_free(name);
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}
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}
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return g_test_run();
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}
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