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i440fx-test: verify firmware under 4G and 1M, both -bios and -pflash

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Check whether the firmware is not hidden by other memory regions.

Qemu is started in paused mode: it shouldn't try to interpret generated
garbage.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Laszlo Ersek 2013-11-29 18:12:22 +01:00 committed by Michael S. Tsirkin
parent 27d59ccd89
commit 3bcc77ae99
1 changed files with 75 additions and 6 deletions
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81
tests/i440fx-test.c
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@ -35,6 +35,11 @@ typedef struct TestData
int num_cpus;
} TestData;
typedef struct FirmwareTestFixture {
/* decides whether we're testing -bios or -pflash */
bool is_bios;
} FirmwareTestFixture;
static QPCIBus *test_start_get_bus(const TestData *s)
{
char *cmdline;
@ -278,6 +283,7 @@ static void test_i440fx_pam(gconstpointer opaque)
}
#define BLOB_SIZE ((size_t)65536)
#define ISA_BIOS_MAXSZ ((size_t)(128 * 1024))
/* Create a blob file, and return its absolute pathname as a dynamically
* allocated string.
@ -326,23 +332,86 @@ static char *create_blob_file(void)
return ret == -1 ? NULL : pathname;
}
static void test_i440fx_firmware(FirmwareTestFixture *fixture,
gconstpointer user_data)
{
char *fw_pathname, *cmdline;
uint8_t *buf;
size_t i, isa_bios_size;
fw_pathname = create_blob_file();
g_assert(fw_pathname != NULL);
/* Better hope the user didn't put metacharacters in TMPDIR and co. */
cmdline = g_strdup_printf("-S %s %s",
fixture->is_bios ? "-bios" : "-pflash",
fw_pathname);
g_test_message("qemu cmdline: %s", cmdline);
qtest_start(cmdline);
g_free(cmdline);
/* Qemu has loaded the firmware (because qtest_start() only returns after
* the QMP handshake completes). We must unlink the firmware blob right
* here, because any assertion firing below would leak it in the
* filesystem. This is also the reason why we recreate the blob every time
* this function is invoked.
*/
unlink(fw_pathname);
g_free(fw_pathname);
/* check below 4G */
buf = g_malloc0(BLOB_SIZE);
memread(0x100000000ULL - BLOB_SIZE, buf, BLOB_SIZE);
for (i = 0; i < BLOB_SIZE; ++i) {
g_assert_cmphex(buf[i], ==, (uint8_t)i);
}
/* check in ISA space too */
memset(buf, 0, BLOB_SIZE);
isa_bios_size = ISA_BIOS_MAXSZ < BLOB_SIZE ? ISA_BIOS_MAXSZ : BLOB_SIZE;
memread(0x100000 - isa_bios_size, buf, isa_bios_size);
for (i = 0; i < isa_bios_size; ++i) {
g_assert_cmphex(buf[i], ==,
(uint8_t)((BLOB_SIZE - isa_bios_size) + i));
}
g_free(buf);
qtest_end();
}
static void add_firmware_test(const char *testpath,
void (*setup_fixture)(FirmwareTestFixture *f,
gconstpointer test_data))
{
g_test_add(testpath, FirmwareTestFixture, NULL, setup_fixture,
test_i440fx_firmware, NULL);
}
static void request_bios(FirmwareTestFixture *fixture,
gconstpointer user_data)
{
fixture->is_bios = true;
}
static void request_pflash(FirmwareTestFixture *fixture,
gconstpointer user_data)
{
fixture->is_bios = false;
}
int main(int argc, char **argv)
{
char *fw_pathname;
TestData data;
int ret;
g_test_init(&argc, &argv, NULL);
fw_pathname = create_blob_file();
g_assert(fw_pathname != NULL);
unlink(fw_pathname);
g_free(fw_pathname);
data.num_cpus = 1;
g_test_add_data_func("/i440fx/defaults", &data, test_i440fx_defaults);
g_test_add_data_func("/i440fx/pam", &data, test_i440fx_pam);
add_firmware_test("/i440fx/firmware/bios", request_bios);
add_firmware_test("/i440fx/firmware/pflash", request_pflash);
ret = g_test_run();
return ret;