diff options
Diffstat (limited to 'tests/qtest/tpm-crb-test.c')
| -rw-r--r-- | tests/qtest/tpm-crb-test.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/tests/qtest/tpm-crb-test.c b/tests/qtest/tpm-crb-test.c new file mode 100644 index 0000000000..632fb7fbd8 --- /dev/null +++ b/tests/qtest/tpm-crb-test.c @@ -0,0 +1,179 @@ +/* + * QTest testcase for TPM CRB + * + * Copyright (c) 2018 Red Hat, Inc. + * + * Authors: + * Marc-André Lureau <marcandre.lureau@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. + */ + +#include "qemu/osdep.h" +#include <glib/gstdio.h> + +#include "hw/acpi/tpm.h" +#include "io/channel-socket.h" +#include "libqtest-single.h" +#include "qemu/module.h" +#include "tpm-emu.h" + +#define TPM_CMD "\x80\x01\x00\x00\x00\x0c\x00\x00\x01\x44\x00\x00" + +static void tpm_crb_test(const void *data) +{ + const TestState *s = data; + uint32_t intfid = readl(TPM_CRB_ADDR_BASE + A_CRB_INTF_ID); + uint32_t csize = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_SIZE); + uint64_t caddr = readq(TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_LADDR); + uint32_t rsize = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_SIZE); + uint64_t raddr = readq(TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_ADDR); + uint8_t locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE); + uint32_t locctrl = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL); + uint32_t locsts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS); + uint32_t sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS); + + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, InterfaceType), ==, 1); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, InterfaceVersion), ==, 1); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, CapLocality), ==, 0); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, CapCRBIdleBypass), ==, 0); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, CapDataXferSizeSupport), + ==, 3); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, CapFIFO), ==, 0); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, CapCRB), ==, 1); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, InterfaceSelector), ==, 1); + g_assert_cmpint(FIELD_EX32(intfid, CRB_INTF_ID, RID), ==, 0); + + g_assert_cmpint(csize, >=, 128); + g_assert_cmpint(rsize, >=, 128); + g_assert_cmpint(caddr, >, TPM_CRB_ADDR_BASE); + g_assert_cmpint(raddr, >, TPM_CRB_ADDR_BASE); + + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1); + + g_assert_cmpint(locctrl, ==, 0); + + g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, Granted), ==, 0); + g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, beenSeized), ==, 0); + + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 1); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0); + + /* request access to locality 0 */ + writeb(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL, 1); + + /* granted bit must be set now */ + locsts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS); + g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, Granted), ==, 1); + g_assert_cmpint(FIELD_EX32(locsts, CRB_LOC_STS, beenSeized), ==, 0); + + /* we must have an assigned locality */ + locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 1); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1); + + /* set into ready state */ + writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_REQ, 1); + + /* TPM must not be in the idle state */ + sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 0); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0); + + memwrite(caddr, TPM_CMD, sizeof(TPM_CMD)); + + uint32_t start = 1; + uint64_t end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; + writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_START, start); + do { + start = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_START); + if ((start & 1) == 0) { + break; + } + } while (g_get_monotonic_time() < end_time); + start = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_START); + g_assert_cmpint(start & 1, ==, 0); + + /* TPM must still not be in the idle state */ + sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 0); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0); + + struct tpm_hdr tpm_msg; + memread(raddr, &tpm_msg, sizeof(tpm_msg)); + g_assert_cmpmem(&tpm_msg, sizeof(tpm_msg), s->tpm_msg, sizeof(*s->tpm_msg)); + + /* set TPM into idle state */ + writel(TPM_CRB_ADDR_BASE + A_CRB_CTRL_REQ, 2); + + /* idle state must be indicated now */ + sts = readl(TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmIdle), ==, 1); + g_assert_cmpint(FIELD_EX32(sts, CRB_CTRL_STS, tpmSts), ==, 0); + + /* relinquish locality */ + writel(TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL, 2); + + /* Granted flag must be cleared */ + sts = readl(TPM_CRB_ADDR_BASE + A_CRB_LOC_STS); + g_assert_cmpint(FIELD_EX32(sts, CRB_LOC_STS, Granted), ==, 0); + g_assert_cmpint(FIELD_EX32(sts, CRB_LOC_STS, beenSeized), ==, 0); + + /* no locality may be assigned */ + locstate = readb(TPM_CRB_ADDR_BASE + A_CRB_LOC_STATE); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmEstablished), ==, 1); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, locAssigned), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, activeLocality), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, reserved), ==, 0); + g_assert_cmpint(FIELD_EX32(locstate, CRB_LOC_STATE, tpmRegValidSts), ==, 1); + +} + +int main(int argc, char **argv) +{ + int ret; + char *args, *tmp_path = g_dir_make_tmp("qemu-tpm-crb-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); + test.data_cond_signal = false; + + 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-crb,tpmdev=dev", + test.addr->u.q_unix.path); + qtest_start(args); + + qtest_add_data_func("/tpm-crb/test", &test, tpm_crb_test); + 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; +} |