{"id":2223042,"url":"http://patchwork.ozlabs.org/api/patches/2223042/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414082915.112122-9-armenon@redhat.com/","project":{"id":14,"url":"http://patchwork.ozlabs.org/api/projects/14/?format=json","name":"QEMU Development","link_name":"qemu-devel","list_id":"qemu-devel.nongnu.org","list_email":"qemu-devel@nongnu.org","web_url":"","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260414082915.112122-9-armenon@redhat.com>","list_archive_url":null,"date":"2026-04-14T08:29:13","name":"[v4,08/10] tests: Use ML-DSA-87 operations to caused large TPM transfers with CRB","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"f761cd2fb0f2e9440b9315f4886ce98efacdf92d","submitter":{"id":91136,"url":"http://patchwork.ozlabs.org/api/people/91136/?format=json","name":"Arun Menon","email":"armenon@redhat.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/qemu-devel/patch/20260414082915.112122-9-armenon@redhat.com/mbox/","series":[{"id":499802,"url":"http://patchwork.ozlabs.org/api/series/499802/?format=json","web_url":"http://patchwork.ozlabs.org/project/qemu-devel/list/?series=499802","date":"2026-04-14T08:29:05","name":"hw/tpm: CRB chunking capability to handle PQC","version":4,"mbox":"http://patchwork.ozlabs.org/series/499802/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2223042/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2223042/checks/","tags":{},"related":[],"headers":{"Return-Path":"","X-Original-To":"incoming@patchwork.ozlabs.org","Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (1024-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=mimecast20190719 header.b=S0GVeBRf;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256\n header.s=google header.b=arLMS+y/;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org\n (client-ip=209.51.188.17; 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Tsirkin\" , =?utf-8?q?Philippe_Mathieu-Daud?=\n\t=?utf-8?q?=C3=A9?= ,\n Stefan Berger ,\n Paolo Bonzini ,\n Marcel Apfelbaum ,\n Zhao Liu , marcandre.lureau@redhat.com,\n Igor Mammedov , Laurent Vivier ,\n Fabiano Rosas , Arun Menon ,\n Stefan Berger ","Subject":"[PATCH v4 08/10] tests: Use ML-DSA-87 operations to caused large TPM\n transfers with CRB","Date":"Tue, 14 Apr 2026 13:59:13 +0530","Message-ID":"<20260414082915.112122-9-armenon@redhat.com>","X-Mailer":"git-send-email 2.53.0","In-Reply-To":"<20260414082915.112122-1-armenon@redhat.com>","References":"<20260414082915.112122-1-armenon@redhat.com>","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","Received-SPF":"pass client-ip=170.10.133.124; envelope-from=armenon@redhat.com;\n helo=us-smtp-delivery-124.mimecast.com","X-Spam_score_int":"-25","X-Spam_score":"-2.6","X-Spam_bar":"--","X-Spam_report":"(-2.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.54,\n DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1,\n RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001,\n RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001,\n SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no","X-Spam_action":"no action","X-BeenThere":"qemu-devel@nongnu.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"qemu development ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org","Sender":"qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org"},"content":"From: Stefan Berger \n\nTo test large data transfers (receiving and sending) that make use of a CRB\nchunked transfer, create an ML-DSA-87 key and sign some data with it and\nreceive the 4627 bytes signature. After this send the signature back to the\nTPM to have the TPM verify the signature.\n\nSigned-off-by: Stefan Berger \nSigned-off-by: Arun Menon \n---\n tests/qtest/tpm-crb-swtpm-test.c | 5 +-\n tests/qtest/tpm-tests.c | 96 ++++++++++++++++++++++++++++++++\n tests/qtest/tpm-tests.h | 4 ++\n tests/qtest/tpm-util.c | 37 ++++++++++++\n tests/qtest/tpm-util.h | 2 +\n 5 files changed, 142 insertions(+), 2 deletions(-)","diff":"diff --git a/tests/qtest/tpm-crb-swtpm-test.c b/tests/qtest/tpm-crb-swtpm-test.c\nindex 050c7b0c1f..541fd58133 100644\n--- a/tests/qtest/tpm-crb-swtpm-test.c\n+++ b/tests/qtest/tpm-crb-swtpm-test.c\n@@ -37,8 +37,9 @@ static void tpm_crb_chunk_swtpm_test(const void *data)\n {\n const TestState *ts = data;\n \n- tpm_test_swtpm_test(ts->src_tpm_path, tpm_util_crb_chunk_transfer,\n- \"tpm-crb\", NULL);\n+ tpm_test_swtpm_large_tx_test(ts->src_tpm_path,\n+ tpm_util_crb_chunk_transfer,\n+ \"tpm-crb\", NULL);\n }\n \n static void tpm_crb_swtpm_migration_test(const void *data)\ndiff --git a/tests/qtest/tpm-tests.c b/tests/qtest/tpm-tests.c\nindex f71d882990..21811f3a2e 100644\n--- a/tests/qtest/tpm-tests.c\n+++ b/tests/qtest/tpm-tests.c\n@@ -13,6 +13,7 @@\n */\n \n #include \"qemu/osdep.h\"\n+#include \"system/tpm_util.h\"\n #include \n \n #include \"libqtest-single.h\"\n@@ -130,3 +131,98 @@ void tpm_test_swtpm_migration_test(const char *src_tpm_path,\n g_unlink(src_tpm_addr->u.q_unix.path);\n qapi_free_SocketAddress(src_tpm_addr);\n }\n+\n+void tpm_test_swtpm_large_tx_test(const char *src_tpm_path, tx_func *tx,\n+ const char *ifmodel,\n+ const char *machine_options)\n+{\n+ unsigned char signature[2 + 2 + 4627]; /* TPMT_SIGNATURE */\n+ unsigned char response[8192];\n+ unsigned char request[8192];\n+ SocketAddress *addr = NULL;\n+ GError *error = NULL;\n+ char *args = NULL;\n+ GPid swtpm_pid;\n+ QTestState *s;\n+ gboolean succ;\n+\n+ if (tpm_test_swtpm_skip()) {\n+ return;\n+ }\n+\n+ /* Large transfers based on ML-DSA operations required default-v2 profile */\n+ if (!tpm_util_swtpm_has_profile(\"default-v2\", \"ml-dsa\")) {\n+ return;\n+ }\n+\n+ succ = tpm_util_swtpm_start(src_tpm_path, &swtpm_pid, &addr, \"default-v2\",\n+ &error);\n+ g_assert_true(succ);\n+\n+ args = g_strdup_printf(\n+ \"%s \"\n+ \"-chardev socket,id=chr,path=%s \"\n+ \"-tpmdev emulator,id=dev,chardev=chr \"\n+ \"-device %s,tpmdev=dev\",\n+ machine_options ? : \"\", addr->u.q_unix.path, ifmodel);\n+\n+ s = qtest_start(args);\n+ g_free(args);\n+\n+ tpm_util_startup(s, tx);\n+\n+ static const unsigned char tpm_createprimary_mldsa[] =\n+ \"\\x80\\x02\\x00\\x00\\x00\\x38\\x00\\x00\\x01\\x31\\x40\\x00\\x00\\x07\\x00\\x00\"\n+ \"\\x00\\x09\\x40\\x00\\x00\\x09\\x00\\x00\\x00\\x00\\x00\\x00\\x04\\x00\\x00\\x00\"\n+ \"\\x00\\x00\\x0f\\x00\\xa1\\x00\\x0b\\x00\\x04\\x04\\x72\\x00\\x00\\x00\\x03\\x00\"\n+ \"\\x00\\x00\\x00\\x00\\x00\\x00\\x00\\x00\";\n+ tx(s, tpm_createprimary_mldsa, sizeof(tpm_createprimary_mldsa),\n+ response, sizeof(response));\n+ g_assert_cmpint(tpm_cmd_get_errcode(response), ==, 0);\n+ g_assert_cmpint(tpm_cmd_get_size(response), ==, 2831);\n+\n+ static const unsigned char tpm_signsequencestart[] =\n+ \"\\x80\\x01\\x00\\x00\\x00\\x12\\x00\\x00\\x01\\xaa\\x80\\x00\\x00\\x00\\x00\\x00\"\n+ \"\\x00\\x00\";\n+ tx(s, tpm_signsequencestart, sizeof(tpm_signsequencestart),\n+ response, sizeof(response));\n+ g_assert_cmpint(tpm_cmd_get_errcode(response), ==, 0);\n+ g_assert_cmpint(tpm_cmd_get_size(response), ==, 14);\n+\n+ /* Complete sequence and get signature */\n+ static const unsigned char tpm_signsequencecomplete[] =\n+ \"\\x80\\x02\\x00\\x00\\x00\\x2a\\x00\\x00\\x01\\xa4\\x80\\x00\\x00\\x01\\x80\\x00\"\n+ \"\\x00\\x00\\x00\\x00\\x00\\x12\\x40\\x00\\x00\\x09\\x00\\x00\\x00\\x00\\x00\\x40\"\n+ \"\\x00\\x00\\x09\\x00\\x00\\x00\\x00\\x00\\x00\\x00\";\n+ tx(s, tpm_signsequencecomplete, sizeof(tpm_signsequencecomplete),\n+ response, sizeof(response));\n+ g_assert_cmpint(tpm_cmd_get_errcode(response), ==, 0);\n+ g_assert_cmpint(tpm_cmd_get_size(response), ==, 4655);\n+\n+ /* TPMT_SIGNATURE found at offset 14 */\n+ memcpy(signature, &response[14], sizeof(signature));\n+\n+ static const unsigned char tpm_verifysequencestart[] =\n+ \"\\x80\\x01\\x00\\x00\\x00\\x14\\x00\\x00\\x01\\xa9\\x80\\x00\\x00\\x00\\x00\\x00\"\n+ \"\\x00\\x00\\x00\\x00\";\n+ tx(s, tpm_verifysequencestart, sizeof(tpm_verifysequencestart),\n+ response, sizeof(response));\n+ g_assert_cmpint(tpm_cmd_get_errcode(response), ==, 0);\n+ g_assert_cmpint(tpm_cmd_get_size(response), ==, 14);\n+\n+ /* TPM2_VerifySequenceComplete */\n+ memcpy(request,\n+ \"\\x80\\x02\\x00\\x00\\x12\\x36\\x00\\x00\\x01\\xa3\\x80\\x00\\x00\\x01\\x80\\x00\"\n+ \"\\x00\\x00\\x00\\x00\\x00\\x09\\x40\\x00\\x00\\x09\\x00\\x00\\x00\\x00\\x00\",\n+ 31);\n+ memcpy(&request[31], signature, sizeof(signature));\n+ tx(s, request, 31 + sizeof(signature), response, sizeof(response));\n+ g_assert_cmpint(tpm_cmd_get_errcode(response), ==, 0);\n+ g_assert_cmpint(tpm_cmd_get_size(response), ==, 27);\n+\n+ qtest_end();\n+ tpm_util_swtpm_kill(swtpm_pid);\n+\n+ g_unlink(addr->u.q_unix.path);\n+ qapi_free_SocketAddress(addr);\n+}\ndiff --git a/tests/qtest/tpm-tests.h b/tests/qtest/tpm-tests.h\nindex 07ba60d26e..6993ce40dc 100644\n--- a/tests/qtest/tpm-tests.h\n+++ b/tests/qtest/tpm-tests.h\n@@ -24,4 +24,8 @@ void tpm_test_swtpm_migration_test(const char *src_tpm_path,\n const char *ifmodel,\n const char *machine_options);\n \n+void tpm_test_swtpm_large_tx_test(const char *src_tpm_path, tx_func *tx,\n+ const char *ifmodel,\n+ const char *machine_options);\n+\n #endif /* TESTS_TPM_TESTS_H */\ndiff --git a/tests/qtest/tpm-util.c b/tests/qtest/tpm-util.c\nindex cbba5b1c1f..ad4325aade 100644\n--- a/tests/qtest/tpm-util.c\n+++ b/tests/qtest/tpm-util.c\n@@ -211,6 +211,43 @@ bool tpm_util_swtpm_has_tpm2(void)\n return has_tpm2;\n }\n \n+bool tpm_util_swtpm_has_profile(const char *profilename,\n+ const char *content)\n+{\n+ bool has_profile = false;\n+ char *out = NULL;\n+ static const char *argv[] = {\n+ \"swtpm\", \"socket\", \"--tpm2\", \"--print-profiles\", NULL\n+ };\n+\n+ if (!tpm_util_swtpm_has_tpm2()) {\n+ return false;\n+ }\n+\n+ if (!g_spawn_sync(NULL /* working_dir */,\n+ (char **)argv,\n+ NULL /* envp */,\n+ G_SPAWN_SEARCH_PATH,\n+ NULL /* child_setup */,\n+ NULL /* user_data */,\n+ &out,\n+ NULL /* err */,\n+ NULL /* exit_status */,\n+ NULL)) {\n+ return false;\n+ }\n+\n+ if (strstr(out, profilename)) {\n+ has_profile = true;\n+ }\n+ if (has_profile && content && strstr(out, content) == NULL) {\n+ has_profile = false;\n+ }\n+\n+ g_free(out);\n+ return has_profile;\n+}\n+\n gboolean tpm_util_swtpm_start(const char *path, GPid *pid,\n SocketAddress **addr, const char *profilename,\n GError **error)\ndiff --git a/tests/qtest/tpm-util.h b/tests/qtest/tpm-util.h\nindex ca2d7d173f..90790f30db 100644\n--- a/tests/qtest/tpm-util.h\n+++ b/tests/qtest/tpm-util.h\n@@ -39,6 +39,8 @@ void tpm_util_pcrread(QTestState *s, tx_func *tx,\n const unsigned char *exp_resp, size_t exp_resp_size);\n \n bool tpm_util_swtpm_has_tpm2(void);\n+bool tpm_util_swtpm_has_profile(const char *profilename,\n+ const char *content);\n \n gboolean tpm_util_swtpm_start(const char *path, GPid *pid,\n SocketAddress **addr, const char *profilename,\n","prefixes":["v4","08/10"]}