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- /*
- * Test Open-Firmware-based machines.
- *
- * Copyright (c) 2016, 2017 Red Hat Inc.
- *
- * Author:
- * Thomas Huth <thuth@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.
- *
- * This test is used to check that some Open Firmware based machines (i.e.
- * OpenBIOS or SLOF) can be started successfully in TCG mode. To do this, we
- * first put some Forth code into the "boot-command" Open Firmware environment
- * variable. This Forth code writes a well-known magic value to a known location
- * in memory. Then we start the guest so that the firmware can boot and finally
- * run the Forth code.
- * The testing code here then can finally check whether the value has been
- * successfully written into the guest memory.
- */
- #include "qemu/osdep.h"
- #include "libqtest.h"
- #define MAGIC 0xcafec0de
- #define ADDRESS 0x4000
- static void check_guest_memory(QTestState *qts)
- {
- uint32_t signature;
- int i;
- /* Poll until code has run and modified memory. Wait at most 600 seconds */
- for (i = 0; i < 60000; ++i) {
- signature = qtest_readl(qts, ADDRESS);
- if (signature == MAGIC) {
- break;
- }
- g_usleep(10000);
- }
- g_assert_cmphex(signature, ==, MAGIC);
- }
- static void test_machine(const void *machine)
- {
- const char *extra_args = "";
- QTestState *qts;
- /*
- * The pseries firmware boots much faster without the default
- * devices, it also needs Spectre/Meltdown workarounds disabled to
- * avoid warnings with TCG
- */
- if (strcmp(machine, "pseries") == 0) {
- extra_args = "-nodefaults"
- " -machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken";
- }
- qts = qtest_initf("-M %s,accel=tcg %s -prom-env 'use-nvramrc?=true' "
- "-prom-env 'nvramrc=%x %x l!' ", (const char *)machine,
- extra_args, MAGIC, ADDRESS);
- check_guest_memory(qts);
- qtest_quit(qts);
- }
- static void add_tests(const char *machines[])
- {
- int i;
- char *name;
- for (i = 0; machines[i] != NULL; i++) {
- name = g_strdup_printf("prom-env/%s", machines[i]);
- qtest_add_data_func(name, machines[i], test_machine);
- g_free(name);
- }
- }
- int main(int argc, char *argv[])
- {
- const char *sparc_machines[] = { "SPARCbook", "Voyager", "SS-20", NULL };
- const char *sparc64_machines[] = { "sun4u", NULL };
- const char *ppc_machines[] = { "mac99", "g3beige", NULL };
- const char *arch = qtest_get_arch();
- g_test_init(&argc, &argv, NULL);
- if (!strcmp(arch, "ppc")) {
- add_tests(ppc_machines);
- } else if (!strcmp(arch, "ppc64")) {
- add_tests(ppc_machines);
- if (g_test_slow()) {
- qtest_add_data_func("prom-env/pseries", "pseries", test_machine);
- }
- } else if (!strcmp(arch, "sparc")) {
- add_tests(sparc_machines);
- } else if (!strcmp(arch, "sparc64")) {
- add_tests(sparc64_machines);
- } else {
- g_assert_not_reached();
- }
- return g_test_run();
- }
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