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-rw-r--r--tests/qtest/tpm-crb-test.c179
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;
+}
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