105 lines
3.0 KiB
C
105 lines
3.0 KiB
C
/*
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* Test Open-Firmware-based machines.
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*
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* Copyright (c) 2016, 2017 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 Open Firmware based machines (i.e.
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* OpenBIOS or SLOF) can be started successfully in TCG mode. To do this, we
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* first put some Forth code into the "boot-command" Open Firmware environment
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* variable. This Forth code writes a well-known magic value to a known location
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* in memory. Then we start the guest so that the firmware can boot and finally
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* 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(QTestState *qts)
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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 600 seconds */
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for (i = 0; i < 60000; ++i) {
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signature = qtest_readl(qts, 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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const char *extra_args = "";
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QTestState *qts;
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/*
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* The pseries firmware boots much faster without the default
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* devices, it also needs Spectre/Meltdown workarounds disabled to
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* avoid warnings with TCG
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*/
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if (strcmp(machine, "pseries") == 0) {
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extra_args = "-nodefaults"
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" -machine cap-cfpc=broken,cap-sbbc=broken,cap-ibs=broken";
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}
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qts = qtest_initf("-M %s,accel=tcg %s -prom-env 'use-nvramrc?=true' "
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"-prom-env 'nvramrc=%x %x l!' ", (const char *)machine,
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extra_args, MAGIC, ADDRESS);
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check_guest_memory(qts);
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qtest_quit(qts);
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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", NULL };
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const char *ppc_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")) {
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add_tests(ppc_machines);
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} else if (!strcmp(arch, "ppc64")) {
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add_tests(ppc_machines);
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if (g_test_slow()) {
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qtest_add_data_func("prom-env/pseries", "pseries", test_machine);
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}
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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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