diff options
author | Thomas Huth <thuth@redhat.com> | 2016-06-14 15:57:56 +0200 |
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committer | David Gibson <david@gibson.dropbear.id.au> | 2016-06-17 15:57:59 +1000 |
commit | fcbf4a3c0c576eec1321f9cff4fa0dd8e0b1a82f (patch) | |
tree | 62b8cb2b380c5d5a9be290dacdf6bcffee42c781 /tests/prom-env-test.c | |
parent | a1aa1309892581972b5019ef65fd0a12cd69cc28 (diff) |
ppc / sparc: Add a tester for checking whether OpenBIOS runs successfully
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>
Diffstat (limited to 'tests/prom-env-test.c')
-rw-r--r-- | tests/prom-env-test.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/tests/prom-env-test.c b/tests/prom-env-test.c new file mode 100644 index 0000000000..6df57d224b --- /dev/null +++ b/tests/prom-env-test.c @@ -0,0 +1,90 @@ +/* + * Test OpenBIOS-based machines. + * + * Copyright (c) 2016 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 OpenBIOS machines 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 OpenBIOS 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(void) +{ + uint32_t signature; + int i; + + /* Poll until code has run and modified memory. Wait at most 30 seconds */ + for (i = 0; i < 3000; ++i) { + signature = readl(ADDRESS); + if (signature == MAGIC) { + break; + } + g_usleep(10000); + } + + g_assert_cmphex(signature, ==, MAGIC); +} + +static void test_machine(const void *machine) +{ + char *args; + + args = g_strdup_printf("-M %s,accel=tcg -prom-env 'boot-command=%x %x l!'", + (const char *)machine, MAGIC, ADDRESS); + + qtest_start(args); + check_guest_memory(); + qtest_quit(global_qtest); + + g_free(args); +} + +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", "sun4v", NULL }; + const char *mac_machines[] = { "mac99", "g3beige", NULL }; + const char *arch = qtest_get_arch(); + + g_test_init(&argc, &argv, NULL); + + if (!strcmp(arch, "ppc") || !strcmp(arch, "ppc64")) { + add_tests(mac_machines); + } 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(); +} |