9bd0e32a19
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Message-id: 20210802215246.1433175-2-stefanb@linux.ibm.com
452 lines
17 KiB
C
452 lines
17 KiB
C
/*
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* QTest testcase for TPM TIS: common test functions used for both
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* the ISA and SYSBUS devices
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*
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* Copyright (c) 2018 Red Hat, Inc.
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* Copyright (c) 2018 IBM Corporation
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*
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* Authors:
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* Marc-André Lureau <marcandre.lureau@redhat.com>
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* Stefan Berger <stefanb@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2 or later.
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* See the COPYING file in the top-level directory.
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*/
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#include "qemu/osdep.h"
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#include <glib/gstdio.h>
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#include "hw/acpi/tpm.h"
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#include "io/channel-socket.h"
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#include "libqtest-single.h"
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#include "qemu/module.h"
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#include "tpm-emu.h"
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#include "tpm-util.h"
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#include "tpm-tis-util.h"
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#define DEBUG_TIS_TEST 0
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#define DPRINTF(fmt, ...) do { \
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if (DEBUG_TIS_TEST) { \
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printf(fmt, ## __VA_ARGS__); \
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} \
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} while (0)
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#define DPRINTF_ACCESS \
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DPRINTF("%s: %d: locty=%d l=%d access=0x%02x pending_request_flag=0x%x\n", \
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__func__, __LINE__, locty, l, access, pending_request_flag)
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#define DPRINTF_STS \
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DPRINTF("%s: %d: sts = 0x%08x\n", __func__, __LINE__, sts)
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static const uint8_t TPM_CMD[12] =
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"\x80\x01\x00\x00\x00\x0c\x00\x00\x01\x44\x00\x00";
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void tpm_tis_test_check_localities(const void *data)
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{
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uint8_t locty;
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uint8_t access;
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uint32_t ifaceid;
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uint32_t capability;
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uint32_t didvid;
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uint32_t rid;
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for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES; locty++) {
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access = readb(TIS_REG(0, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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capability = readl(TIS_REG(locty, TPM_TIS_REG_INTF_CAPABILITY));
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g_assert_cmpint(capability, ==, TPM_TIS_CAPABILITIES_SUPPORTED2_0);
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ifaceid = readl(TIS_REG(locty, TPM_TIS_REG_INTERFACE_ID));
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g_assert_cmpint(ifaceid, ==, TPM_TIS_IFACE_ID_SUPPORTED_FLAGS2_0);
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didvid = readl(TIS_REG(locty, TPM_TIS_REG_DID_VID));
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g_assert_cmpint(didvid, !=, 0);
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g_assert_cmpint(didvid, !=, 0xffffffff);
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rid = readl(TIS_REG(locty, TPM_TIS_REG_RID));
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g_assert_cmpint(rid, !=, 0);
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g_assert_cmpint(rid, !=, 0xffffffff);
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}
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}
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void tpm_tis_test_check_access_reg(const void *data)
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{
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uint8_t locty;
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uint8_t access;
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/* do not test locality 4 (hw only) */
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for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES - 1; locty++) {
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* request use of locality */
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writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* release access */
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writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_ACTIVE_LOCALITY);
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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}
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}
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/*
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* Test case for seizing access by a higher number locality
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*/
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void tpm_tis_test_check_access_reg_seize(const void *data)
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{
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int locty, l;
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uint8_t access;
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uint8_t pending_request_flag;
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/* do not test locality 4 (hw only) */
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for (locty = 0; locty < TPM_TIS_NUM_LOCALITIES - 1; locty++) {
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pending_request_flag = 0;
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* request use of locality */
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writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* lower localities cannot seize access */
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for (l = 0; l < locty; l++) {
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/* lower locality is not active */
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* try to request use from 'l' */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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/*
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* requesting use from 'l' was not possible;
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* we must see REQUEST_USE and possibly PENDING_REQUEST
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*/
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_REQUEST_USE |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/*
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* locality 'locty' must be unchanged;
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* we must see PENDING_REQUEST
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*/
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_PENDING_REQUEST |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* try to seize from 'l' */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_SEIZE);
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/* seize from 'l' was not possible */
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_REQUEST_USE |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* locality 'locty' must be unchanged */
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_PENDING_REQUEST |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/*
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* on the next loop we will have a PENDING_REQUEST flag
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* set for locality 'l'
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*/
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pending_request_flag = TPM_TIS_ACCESS_PENDING_REQUEST;
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}
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/*
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* higher localities can 'seize' access but not 'request use';
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* note: this will activate first l+1, then l+2 etc.
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*/
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for (l = locty + 1; l < TPM_TIS_NUM_LOCALITIES - 1; l++) {
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/* try to 'request use' from 'l' */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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/*
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* requesting use from 'l' was not possible; we should see
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* REQUEST_USE and may see PENDING_REQUEST
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*/
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_REQUEST_USE |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/*
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* locality 'l-1' must be unchanged; we should always
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* see PENDING_REQUEST from 'l' requesting access
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*/
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access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_PENDING_REQUEST |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* try to seize from 'l' */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_SEIZE);
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/* seize from 'l' was possible */
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* l - 1 should show that it has BEEN_SEIZED */
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access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_BEEN_SEIZED |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* clear the BEEN_SEIZED flag and make sure it's gone */
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writeb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_BEEN_SEIZED);
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access = readb(TIS_REG(l - 1, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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}
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/*
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* PENDING_REQUEST will not be set if locty = 0 since all localities
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* were active; in case of locty = 1, locality 0 will be active
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* but no PENDING_REQUEST anywhere
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*/
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if (locty <= 1) {
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pending_request_flag = 0;
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}
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/* release access from l - 1; this activates locty - 1 */
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l--;
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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DPRINTF("%s: %d: relinquishing control on l = %d\n",
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__func__, __LINE__, l);
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_ACTIVE_LOCALITY);
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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for (l = locty - 1; l >= 0; l--) {
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* release this locality */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_ACTIVE_LOCALITY);
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if (l == 1) {
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pending_request_flag = 0;
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}
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}
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/* no locality may be active now */
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for (l = 0; l < TPM_TIS_NUM_LOCALITIES - 1; l++) {
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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}
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}
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}
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/*
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* Test case for getting access when higher number locality relinquishes access
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*/
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void tpm_tis_test_check_access_reg_release(const void *data)
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{
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int locty, l;
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uint8_t access;
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uint8_t pending_request_flag;
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/* do not test locality 4 (hw only) */
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for (locty = TPM_TIS_NUM_LOCALITIES - 2; locty >= 0; locty--) {
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pending_request_flag = 0;
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* request use of locality */
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writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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access = readb(TIS_REG(locty, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* request use of all other localities */
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for (l = 0; l < TPM_TIS_NUM_LOCALITIES - 1; l++) {
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if (l == locty) {
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continue;
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}
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/*
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* request use of locality 'l' -- we MUST see REQUEST USE and
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* may see PENDING_REQUEST
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*/
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_REQUEST_USE |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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pending_request_flag = TPM_TIS_ACCESS_PENDING_REQUEST;
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}
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/* release locality 'locty' */
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writeb(TIS_REG(locty, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_ACTIVE_LOCALITY);
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/*
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* highest locality should now be active; release it and make sure the
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* next higest locality is active afterwards
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*/
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for (l = TPM_TIS_NUM_LOCALITIES - 2; l >= 0; l--) {
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if (l == locty) {
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continue;
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}
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/* 'l' should be active now */
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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/* 'l' relinquishes access */
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writeb(TIS_REG(l, TPM_TIS_REG_ACCESS),
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TPM_TIS_ACCESS_ACTIVE_LOCALITY);
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access = readb(TIS_REG(l, TPM_TIS_REG_ACCESS));
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DPRINTF_ACCESS;
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if (l == 1 || (locty <= 1 && l == 2)) {
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pending_request_flag = 0;
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}
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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pending_request_flag |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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}
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}
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}
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/*
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* Test case for transmitting packets
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*/
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void tpm_tis_test_check_transmit(const void *data)
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{
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const TPMTestState *s = data;
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uint8_t access;
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uint32_t sts;
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uint16_t bcount;
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size_t i;
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/* request use of locality 0 */
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writeb(TIS_REG(0, TPM_TIS_REG_ACCESS), TPM_TIS_ACCESS_REQUEST_USE);
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access = readb(TIS_REG(0, TPM_TIS_REG_ACCESS));
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g_assert_cmpint(access, ==, TPM_TIS_ACCESS_TPM_REG_VALID_STS |
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TPM_TIS_ACCESS_ACTIVE_LOCALITY |
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TPM_TIS_ACCESS_TPM_ESTABLISHMENT);
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sts = readl(TIS_REG(0, TPM_TIS_REG_STS));
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DPRINTF_STS;
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g_assert_cmpint(sts & 0xff, ==, 0);
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g_assert_cmpint(sts & TPM_TIS_STS_TPM_FAMILY_MASK, ==,
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TPM_TIS_STS_TPM_FAMILY2_0);
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bcount = (sts >> 8) & 0xffff;
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g_assert_cmpint(bcount, >=, 128);
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writel(TIS_REG(0, TPM_TIS_REG_STS), TPM_TIS_STS_COMMAND_READY);
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sts = readl(TIS_REG(0, TPM_TIS_REG_STS));
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DPRINTF_STS;
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g_assert_cmpint(sts & 0xff, ==, TPM_TIS_STS_COMMAND_READY);
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/* transmit command */
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for (i = 0; i < sizeof(TPM_CMD); i++) {
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writeb(TIS_REG(0, TPM_TIS_REG_DATA_FIFO), TPM_CMD[i]);
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sts = readl(TIS_REG(0, TPM_TIS_REG_STS));
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DPRINTF_STS;
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if (i < sizeof(TPM_CMD) - 1) {
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g_assert_cmpint(sts & 0xff, ==,
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TPM_TIS_STS_EXPECT | TPM_TIS_STS_VALID);
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} else {
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g_assert_cmpint(sts & 0xff, ==, TPM_TIS_STS_VALID);
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}
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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));
|
|
}
|