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fcbf4a3c0c
Since the mac99 and g3beige PowerPC machines recently broke without being noticed, it would be good to have a tester for "make check" that detects such issues immediately. A simple way to test the firmware of these machines is to use the "-prom-env" parameter of QEMU. This parameter can be used to put some Forth code into the 'boot-command' firmware variable which then can signal success to the tester by writing a magic value to a known memory location. And since some of the Sparc machines are also using OpenBIOS, they are now tested with this prom-env-tester, too. Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Thomas Huth <thuth@redhat.com> [dwg: Removed sparc64, because it trips a TCG bug on 32-bit hosts] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
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* Test OpenBIOS-based machines.
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*
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* Copyright (c) 2016 Red Hat Inc.
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*
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* Author:
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* Thomas Huth <thuth@redhat.com>
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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 some OpenBIOS machines can be started
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* successfully in TCG mode. To do this, we first put some Forth code into
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* the "boot-command" Open Firmware environment variable. This Forth code
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* writes a well-known magic value to a known location in memory. Then we
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* start the guest so that OpenBIOS can boot and finally run the Forth code.
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* The testing code here then can finally check whether the value has been
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* successfully written into the guest memory.
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*/
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#include "qemu/osdep.h"
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#include "libqtest.h"
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#define MAGIC 0xcafec0de
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#define ADDRESS 0x4000
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static void check_guest_memory(void)
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{
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uint32_t signature;
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int i;
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/* Poll until code has run and modified memory. Wait at most 30 seconds */
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for (i = 0; i < 3000; ++i) {
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signature = readl(ADDRESS);
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if (signature == MAGIC) {
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break;
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}
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g_usleep(10000);
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}
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g_assert_cmphex(signature, ==, MAGIC);
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}
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static void test_machine(const void *machine)
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{
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char *args;
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args = g_strdup_printf("-M %s,accel=tcg -prom-env 'boot-command=%x %x l!'",
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(const char *)machine, MAGIC, ADDRESS);
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qtest_start(args);
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check_guest_memory();
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qtest_quit(global_qtest);
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g_free(args);
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}
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static void add_tests(const char *machines[])
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{
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int i;
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char *name;
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for (i = 0; machines[i] != NULL; i++) {
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name = g_strdup_printf("prom-env/%s", machines[i]);
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qtest_add_data_func(name, machines[i], test_machine);
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g_free(name);
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}
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}
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int main(int argc, char *argv[])
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{
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const char *sparc_machines[] = { "SPARCbook", "Voyager", "SS-20", NULL };
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const char *sparc64_machines[] = { "sun4u", "sun4v", NULL };
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const char *mac_machines[] = { "mac99", "g3beige", NULL };
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const char *arch = qtest_get_arch();
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g_test_init(&argc, &argv, NULL);
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if (!strcmp(arch, "ppc") || !strcmp(arch, "ppc64")) {
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add_tests(mac_machines);
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} else if (!strcmp(arch, "sparc")) {
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add_tests(sparc_machines);
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} else if (!strcmp(arch, "sparc64")) {
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add_tests(sparc64_machines);
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} else {
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g_assert_not_reached();
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}
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return g_test_run();
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}
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