| /* |
| * QTest testcase for TPM TIS |
| * |
| * Copyright (c) 2018 Red Hat, Inc. |
| * Copyright (c) 2018 IBM Corporation |
| * |
| * Authors: |
| * Marc-André Lureau <marcandre.lureau@redhat.com> |
| * Stefan Berger <stefanb@linux.vnet.ibm.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. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include <glib/gstdio.h> |
| |
| #include "hw/acpi/tpm.h" |
| #include "io/channel-socket.h" |
| #include "libqtest.h" |
| #include "tpm-emu.h" |
| |
| #define TIS_REG(LOCTY, REG) \ |
| (TPM_TIS_ADDR_BASE + ((LOCTY) << 12) + REG) |
| |
| #define DEBUG_TIS_TEST 0 |
| |
| #define DPRINTF(fmt, ...) do { \ |
| if (DEBUG_TIS_TEST) { \ |
| printf(fmt, ## __VA_ARGS__); \ |
| } \ |
| } while (0) |
| |
| #define DPRINTF_ACCESS \ |
| DPRINTF("%s: %d: locty=%d l=%d access=0x%02x pending_request_flag=0x%x\n", \ |
| __func__, __LINE__, locty, l, access, pending_request_flag) |
| |
| #define DPRINTF_STS \ |
| DPRINTF("%s: %d: sts = 0x%08x\n", __func__, __LINE__, sts) |
| |
| static const uint8_t TPM_CMD[12] = |
| "\x80\x01\x00\x00\x00\x0c\x00\x00\x01\x44\x00\x00"; |
| |
| static void tpm_tis_test_check_localities(const void *data) |
| { |
| uint8_t locty; |
| uint8_t access; |
| uint32_t ifaceid; |
| uint32_t capability; |
| uint32_t didvid; |
| uint32_t rid; |
| |
| for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES; locty++) { |
| access = readb(TIS_REG(0, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| capability = readl(TIS_REG(locty, TPM_TIS_REG_INTF_CAPABILITY)); |
| g_assert_cmpint(capability, ==, TPM_TIS_CAPABILITIES_SUPPORTED2_0); |
| |
| ifaceid = readl(TIS_REG(locty, TPM_TIS_REG_INTERFACE_ID)); |
| g_assert_cmpint(ifaceid, ==, TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0); |
| |
| didvid = readl(TIS_REG(locty, TPM_TIS_REG_DID_VID)); |
| g_assert_cmpint(didvid, !=, 0); |
| g_assert_cmpint(didvid, !=, 0xffffffff); |
| |
| rid = readl(TIS_REG(locty, TPM_TIS_REG_RID)); |
| g_assert_cmpint(rid, !=, 0); |
| g_assert_cmpint(rid, !=, 0xffffffff); |
| } |
| } |
| |
| static void tpm_tis_test_check_access_reg(const void *data) |
| { |
| uint8_t locty; |
| uint8_t access; |
| |
| /* do not test locality 4 (hw only) */ |
| for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES - 1; locty++) { |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* request use of locality */ |
| writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* release access */ |
| writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| } |
| } |
| |
| /* |
| * Test case for seizing access by a higher number locality |
| */ |
| static void tpm_tis_test_check_access_reg_seize(const void *data) |
| { |
| int locty, l; |
| uint8_t access; |
| uint8_t pending_request_flag; |
| |
| /* do not test locality 4 (hw only) */ |
| for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES - 1; locty++) { |
| pending_request_flag = 0; |
| |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* request use of locality */ |
| writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* lower localities cannot seize access */ |
| for (l = 0; l < locty; l++) { |
| /* lower locality is not active */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* try to request use from 'l' */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| |
| /* requesting use from 'l' was not possible; |
| we must see REQUEST_USE and possibly PENDING_REQUEST */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_REQUEST_USE | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* locality 'locty' must be unchanged; |
| we must see PENDING_REQUEST */ |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_PENDING_REQUEST | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* try to seize from 'l' */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_SEIZE); |
| /* seize from 'l' was not possible */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_REQUEST_USE | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* locality 'locty' must be unchanged */ |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_PENDING_REQUEST | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* on the next loop we will have a PENDING_REQUEST flag |
| set for locality 'l' */ |
| pending_request_flag = TPM_TIS_ACCESS_PENDING_REQUEST; |
| } |
| |
| /* higher localities can 'seize' access but not 'request use'; |
| note: this will activate first l+1, then l+2 etc. */ |
| for (l = locty + 1; l < TPM_TIS_NUM_LOCALITIES - 1; l++) { |
| /* try to 'request use' from 'l' */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| |
| /* requesting use from 'l' was not possible; we should see |
| REQUEST_USE and may see PENDING_REQUEST */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_REQUEST_USE | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* locality 'l-1' must be unchanged; we should always |
| see PENDING_REQUEST from 'l' requesting access */ |
| access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_PENDING_REQUEST | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* try to seize from 'l' */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_SEIZE); |
| |
| /* seize from 'l' was possible */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* l - 1 should show that it has BEEN_SEIZED */ |
| access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_BEEN_SEIZED | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* clear the BEEN_SEIZED flag and make sure it's gone */ |
| writeb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_BEEN_SEIZED); |
| |
| access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| } |
| |
| /* PENDING_REQUEST will not be set if locty = 0 since all localities |
| were active; in case of locty = 1, locality 0 will be active |
| but no PENDING_REQUEST anywhere */ |
| if (locty <= 1) { |
| pending_request_flag = 0; |
| } |
| |
| /* release access from l - 1; this activates locty - 1 */ |
| l--; |
| |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| |
| DPRINTF("%s: %d: relinquishing control on l = %d\n", |
| __func__, __LINE__, l); |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| for (l = locty - 1; l >= 0; l--) { |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* release this locality */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| |
| if (l == 1) { |
| pending_request_flag = 0; |
| } |
| } |
| |
| /* no locality may be active now */ |
| for (l = 0; l < TPM_TIS_NUM_LOCALITIES - 1; l++) { |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| } |
| } |
| } |
| |
| /* |
| * Test case for getting access when higher number locality relinquishes access |
| */ |
| static void tpm_tis_test_check_access_reg_release(const void *data) |
| { |
| int locty, l; |
| uint8_t access; |
| uint8_t pending_request_flag; |
| |
| /* do not test locality 4 (hw only) */ |
| for (locty = TPM_TIS_NUM_LOCALITIES - 2; locty >= 0; locty--) { |
| pending_request_flag = 0; |
| |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* request use of locality */ |
| writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| /* request use of all other localities */ |
| for (l = 0; l < TPM_TIS_NUM_LOCALITIES - 1; l++) { |
| if (l == locty) { |
| continue; |
| } |
| /* request use of locality 'l' -- we MUST see REQUEST USE and |
| may see PENDING_REQUEST */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_REQUEST_USE | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| pending_request_flag = TPM_TIS_ACCESS_PENDING_REQUEST; |
| } |
| /* release locality 'locty' */ |
| writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| /* highest locality should now be active; release it and make sure the |
| next higest locality is active afterwards */ |
| for (l = TPM_TIS_NUM_LOCALITIES - 2; l >= 0; l--) { |
| if (l == locty) { |
| continue; |
| } |
| /* 'l' should be active now */ |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| /* 'l' relinquishes access */ |
| writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS)); |
| DPRINTF_ACCESS; |
| if (l == 1 || (locty <= 1 && l == 2)) { |
| pending_request_flag = 0; |
| } |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| pending_request_flag | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| } |
| } |
| } |
| |
| /* |
| * Test case for transmitting packets |
| */ |
| static void tpm_tis_test_check_transmit(const void *data) |
| { |
| const TestState *s = data; |
| uint8_t access; |
| uint32_t sts; |
| uint16_t bcount; |
| size_t i; |
| |
| /* request use of locality 0 */ |
| writeb(TIS_REG(0, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE); |
| access = readb(TIS_REG(0, TPM_TIS_REG_ACCESS)); |
| g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS | |
| TPM_TIS_ACCESS_ACTIVE_LOCALITY | |
| TPM_TIS_ACCESS_TPM_ESTABLISHMENT); |
| |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| DPRINTF_STS; |
| |
| g_assert_cmpint(sts & 0xff, ==, 0); |
| g_assert_cmpint(sts & TPM_TIS_STS_TPM_FAMILY_MASK, ==, |
| TPM_TIS_STS_TPM_FAMILY2_0); |
| |
| bcount = (sts >> 8) & 0xffff; |
| g_assert_cmpint(bcount, >=, 128); |
| |
| writel(TIS_REG(0, TPM_TIS_REG_STS), TPM_TIS_STS_COMMAND_READY); |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| DPRINTF_STS; |
| g_assert_cmpint(sts & 0xff, ==, TPM_TIS_STS_COMMAND_READY); |
| |
| /* transmit command */ |
| for (i = 0; i < sizeof(TPM_CMD); i++) { |
| writeb(TIS_REG(0, TPM_TIS_REG_DATA_FIFO), TPM_CMD[i]); |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| DPRINTF_STS; |
| if (i < sizeof(TPM_CMD) - 1) { |
| g_assert_cmpint(sts & 0xff, ==, |
| TPM_TIS_STS_EXPECT | TPM_TIS_STS_VALID); |
| } else { |
| g_assert_cmpint(sts & 0xff, ==, TPM_TIS_STS_VALID); |
| } |
| g_assert_cmpint((sts >> 8) & 0xffff, ==, --bcount); |
| } |
| /* start processing */ |
| writeb(TIS_REG(0, TPM_TIS_REG_STS), TPM_TIS_STS_TPM_GO); |
| |
| uint64_t end_time = g_get_monotonic_time() + 50 * G_TIME_SPAN_SECOND; |
| do { |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| if ((sts & TPM_TIS_STS_DATA_AVAILABLE) != 0) { |
| break; |
| } |
| } while (g_get_monotonic_time() < end_time); |
| |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| DPRINTF_STS; |
| g_assert_cmpint(sts & 0xff, == , |
| TPM_TIS_STS_VALID | TPM_TIS_STS_DATA_AVAILABLE); |
| bcount = (sts >> 8) & 0xffff; |
| |
| /* read response */ |
| uint8_t tpm_msg[sizeof(struct tpm_hdr)]; |
| g_assert_cmpint(sizeof(tpm_msg), ==, bcount); |
| |
| for (i = 0; i < sizeof(tpm_msg); i++) { |
| tpm_msg[i] = readb(TIS_REG(0, TPM_TIS_REG_DATA_FIFO)); |
| sts = readl(TIS_REG(0, TPM_TIS_REG_STS)); |
| DPRINTF_STS; |
| if (sts & TPM_TIS_STS_DATA_AVAILABLE) { |
| g_assert_cmpint((sts >> 8) & 0xffff, ==, --bcount); |
| } |
| } |
| g_assert_cmpmem(tpm_msg, sizeof(tpm_msg), s->tpm_msg, sizeof(*s->tpm_msg)); |
| |
| /* relinquish use of locality 0 */ |
| writeb(TIS_REG(0, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_ACTIVE_LOCALITY); |
| access = readb(TIS_REG(0, TPM_TIS_REG_ACCESS)); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| int ret; |
| char *args, *tmp_path = g_dir_make_tmp("qemu-tpm-tis-test.XXXXXX", NULL); |
| GThread *thread; |
| TestState test; |
| |
| module_call_init(MODULE_INIT_QOM); |
| g_test_init(&argc, &argv, NULL); |
| |
| test.addr = g_new0(SocketAddress, 1); |
| test.addr->type = SOCKET_ADDRESS_TYPE_UNIX; |
| test.addr->u.q_unix.path = g_build_filename(tmp_path, "sock", NULL); |
| g_mutex_init(&test.data_mutex); |
| g_cond_init(&test.data_cond); |
| |
| thread = g_thread_new(NULL, tpm_emu_ctrl_thread, &test); |
| tpm_emu_test_wait_cond(&test); |
| |
| args = g_strdup_printf( |
| "-chardev socket,id=chr,path=%s " |
| "-tpmdev emulator,id=dev,chardev=chr " |
| "-device tpm-tis,tpmdev=dev", |
| test.addr->u.q_unix.path); |
| qtest_start(args); |
| |
| qtest_add_data_func("/tpm-tis/test_check_localities", &test, |
| tpm_tis_test_check_localities); |
| |
| qtest_add_data_func("/tpm-tis/test_check_access_reg", &test, |
| tpm_tis_test_check_access_reg); |
| |
| qtest_add_data_func("/tpm-tis/test_check_access_reg_seize", &test, |
| tpm_tis_test_check_access_reg_seize); |
| |
| qtest_add_data_func("/tpm-tis/test_check_access_reg_release", &test, |
| tpm_tis_test_check_access_reg_release); |
| |
| qtest_add_data_func("/tpm-tis/test_check_transmit", &test, |
| tpm_tis_test_check_transmit); |
| |
| ret = g_test_run(); |
| |
| qtest_end(); |
| |
| g_thread_join(thread); |
| g_unlink(test.addr->u.q_unix.path); |
| qapi_free_SocketAddress(test.addr); |
| g_rmdir(tmp_path); |
| g_free(tmp_path); |
| g_free(args); |
| return ret; |
| } |
