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GET /api/patches/2226178/?format=api
{ "id": 2226178, "url": "http://patchwork.ozlabs.org/api/patches/2226178/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422103018.123608-6-armenon@redhat.com/", "project": { "id": 14, "url": "http://patchwork.ozlabs.org/api/projects/14/?format=api", "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": "<20260422103018.123608-6-armenon@redhat.com>", "list_archive_url": null, "date": "2026-04-22T10:30:13", "name": "[v5,05/10] test/qtest: Add test for tpm crb chunking", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3d6d832759b81fb9971add87002df4bd55ea1f0d", "submitter": { "id": 91136, "url": "http://patchwork.ozlabs.org/api/people/91136/?format=api", "name": "Arun Menon", "email": "armenon@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/qemu-devel/patch/20260422103018.123608-6-armenon@redhat.com/mbox/", "series": [ { "id": 500964, "url": "http://patchwork.ozlabs.org/api/series/500964/?format=api", "web_url": "http://patchwork.ozlabs.org/project/qemu-devel/list/?series=500964", "date": "2026-04-22T10:30:14", "name": "hw/tpm: CRB chunking capability to handle PQC", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/500964/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2226178/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2226178/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org>", "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=f5eGd1Uo;\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=QCgYEqI7;\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\" <mst@redhat.com>, Yanan Wang <wangyanan55@huawei.com>,\n Ani Sinha <anisinha@redhat.com>, Arun Menon <armenon@redhat.com>", "Subject": "[PATCH v5 05/10] test/qtest: Add test for tpm crb chunking", "Date": "Wed, 22 Apr 2026 16:00:13 +0530", "Message-ID": "<20260422103018.123608-6-armenon@redhat.com>", "X-Mailer": "git-send-email 2.53.0", "In-Reply-To": "<20260422103018.123608-1-armenon@redhat.com>", "References": "<20260422103018.123608-1-armenon@redhat.com>", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=UTF-8", "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": "-20", "X-Spam_score": "-2.1", "X-Spam_bar": "--", "X-Spam_report": "(-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001,\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, SPF_HELO_PASS=-0.001,\n 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 <qemu-devel.nongnu.org>", "List-Unsubscribe": "<https://lists.nongnu.org/mailman/options/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>", "List-Archive": "<https://lists.nongnu.org/archive/html/qemu-devel>", "List-Post": "<mailto:qemu-devel@nongnu.org>", "List-Help": "<mailto:qemu-devel-request@nongnu.org?subject=help>", "List-Subscribe": "<https://lists.nongnu.org/mailman/listinfo/qemu-devel>,\n <mailto:qemu-devel-request@nongnu.org?subject=subscribe>", "Errors-To": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org", "Sender": "qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org" }, "content": "From: Arun Menon <armenon@redhat.com>\n\n- New test case added to the swtpm test. Data is written and read from\n the buffer in chunks.\n- The chunk size is dynamically calculated by reading the\n CRB_CTRL_CMD_SIZE address. This can be changed manually to test.\n- Add a helper function tpm_wait_till_bit_clear()\n- Note that this commit does not yet exercise the chunked read/write\n logic, as current transfer sizes remain small. Testing for large\n transfers is introduced in a subsequent patch: 'tests: Use ML-DSA-87\n operations to cause large TPM transfers with CRB'\n\nSigned-off-by: Arun Menon <armenon@redhat.com>\nReviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>\n---\n tests/qtest/tpm-crb-swtpm-test.c | 10 +++\n tests/qtest/tpm-util.c | 110 ++++++++++++++++++++++++++-----\n tests/qtest/tpm-util.h | 5 ++\n 3 files changed, 110 insertions(+), 15 deletions(-)", "diff": "diff --git a/tests/qtest/tpm-crb-swtpm-test.c b/tests/qtest/tpm-crb-swtpm-test.c\nindex ffeb1c396b..050c7b0c1f 100644\n--- a/tests/qtest/tpm-crb-swtpm-test.c\n+++ b/tests/qtest/tpm-crb-swtpm-test.c\n@@ -33,6 +33,14 @@ static void tpm_crb_swtpm_test(const void *data)\n \"tpm-crb\", NULL);\n }\n \n+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+}\n+\n static void tpm_crb_swtpm_migration_test(const void *data)\n {\n const TestState *ts = data;\n@@ -54,6 +62,8 @@ int main(int argc, char **argv)\n g_test_init(&argc, &argv, NULL);\n \n qtest_add_data_func(\"/tpm/crb-swtpm/test\", &ts, tpm_crb_swtpm_test);\n+ qtest_add_data_func(\"/tpm/crb-chunk-swtpm/test\", &ts,\n+ tpm_crb_chunk_swtpm_test);\n qtest_add_data_func(\"/tpm/crb-swtpm-migration/test\", &ts,\n tpm_crb_swtpm_migration_test);\n ret = g_test_run();\ndiff --git a/tests/qtest/tpm-util.c b/tests/qtest/tpm-util.c\nindex 2cb2dd4796..744592763f 100644\n--- a/tests/qtest/tpm-util.c\n+++ b/tests/qtest/tpm-util.c\n@@ -14,16 +14,44 @@\n \n #include \"qemu/osdep.h\"\n #include <glib/gstdio.h>\n+#include \"qemu/bswap.h\"\n \n #include \"hw/acpi/tpm.h\"\n #include \"libqtest.h\"\n #include \"tpm-util.h\"\n #include \"qobject/qdict.h\"\n \n+#define CRB_ADDR_START (TPM_CRB_ADDR_BASE + A_CRB_CTRL_START)\n+#define CRB_ADDR_CTRL_STS (TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS)\n+#define CRB_ADDR_CTRL_CMD_SIZE \\\n+ (TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_SIZE)\n+\n+#define CRB_START_INVOKE (1 << 0)\n+#define CRB_START_RSP_RETRY (1 << 1)\n+#define CRB_START_NEXT_CHUNK (1 << 2)\n+\n+void tpm_wait_till_bit_clear(QTestState *s, uint64_t addr, uint32_t mask)\n+{\n+ uint32_t sts;\n+ uint64_t end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;\n+\n+ while (true) {\n+ sts = qtest_readl(s, addr);\n+ if ((sts & mask) == 0) {\n+ break;\n+ }\n+ if (g_get_monotonic_time() >= end_time) {\n+ g_assert_cmphex(sts & mask, ==, 0);\n+ break;\n+ }\n+ }\n+}\n+\n void tpm_util_crb_transfer(QTestState *s,\n const unsigned char *req, size_t req_size,\n unsigned char *rsp, size_t rsp_size)\n {\n+ uint32_t tpm_sts;\n uint64_t caddr = qtest_readq(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_LADDR);\n uint64_t raddr = qtest_readq(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_ADDR);\n \n@@ -31,24 +59,76 @@ void tpm_util_crb_transfer(QTestState *s,\n \n qtest_memwrite(s, caddr, req, req_size);\n \n- uint32_t sts, start = 1;\n- uint64_t end_time = g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND;\n- qtest_writel(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_START, start);\n- while (true) {\n- start = qtest_readl(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_START);\n- if ((start & 1) == 0) {\n- break;\n+ qtest_writel(s, CRB_ADDR_START, CRB_START_INVOKE);\n+ tpm_wait_till_bit_clear(s, CRB_ADDR_START, CRB_START_INVOKE);\n+\n+ tpm_sts = qtest_readl(s, CRB_ADDR_CTRL_STS);\n+ g_assert_cmpint(tpm_sts & 1, ==, 0);\n+\n+ qtest_memread(s, raddr, rsp, rsp_size);\n+}\n+\n+void tpm_util_crb_chunk_transfer(QTestState *s,\n+ const unsigned char *req, size_t req_size,\n+ unsigned char *rsp, size_t rsp_size)\n+{\n+ uint32_t tpm_sts;\n+ size_t chunk_size;\n+\n+ uint64_t caddr = qtest_readq(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_CMD_LADDR);\n+ uint64_t raddr = qtest_readq(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_RSP_ADDR);\n+ uint32_t crb_ctrl_cmd_size = qtest_readl(s, CRB_ADDR_CTRL_CMD_SIZE);\n+\n+ chunk_size = crb_ctrl_cmd_size;\n+\n+ qtest_writeb(s, TPM_CRB_ADDR_BASE + A_CRB_LOC_CTRL, 1);\n+\n+ for (size_t i = 0; i < req_size; i += chunk_size) {\n+ bool last_chunk = false;\n+ size_t current_chunk_size = chunk_size;\n+\n+ if (i + chunk_size > req_size) {\n+ last_chunk = true;\n+ current_chunk_size = req_size - i;\n }\n- if (g_get_monotonic_time() >= end_time) {\n- break;\n+\n+ qtest_memwrite(s, caddr, req + i, current_chunk_size);\n+\n+ if (last_chunk) {\n+ qtest_writel(s, CRB_ADDR_START, CRB_START_INVOKE);\n+ tpm_wait_till_bit_clear(s, CRB_ADDR_START, CRB_START_INVOKE);\n+ } else {\n+ qtest_writel(s, CRB_ADDR_START, CRB_START_NEXT_CHUNK);\n+ tpm_wait_till_bit_clear(s, CRB_ADDR_START, CRB_START_NEXT_CHUNK);\n }\n- };\n- start = qtest_readl(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_START);\n- g_assert_cmpint(start & 1, ==, 0);\n- sts = qtest_readl(s, TPM_CRB_ADDR_BASE + A_CRB_CTRL_STS);\n- g_assert_cmpint(sts & 1, ==, 0);\n+ }\n+ tpm_sts = qtest_readl(s, CRB_ADDR_CTRL_STS);\n+ g_assert_cmpint(tpm_sts & 1, ==, 0);\n \n- qtest_memread(s, raddr, rsp, rsp_size);\n+ /*\n+ * Read response in chunks\n+ */\n+\n+ unsigned char header[10];\n+ uint32_t actual_response_size = 0;\n+\n+ qtest_memread(s, raddr, header, sizeof(header));\n+ actual_response_size = ldl_be_p(&header[2]);\n+\n+ if (actual_response_size > rsp_size) {\n+ actual_response_size = rsp_size;\n+ }\n+\n+ for (size_t i = 0; i < actual_response_size; i += chunk_size) {\n+ size_t to_read = i + chunk_size > actual_response_size\n+ ? actual_response_size - i\n+ : chunk_size;\n+ if (i > 0) {\n+ qtest_writel(s, CRB_ADDR_START, CRB_START_NEXT_CHUNK);\n+ tpm_wait_till_bit_clear(s, CRB_ADDR_START, CRB_START_NEXT_CHUNK);\n+ }\n+ qtest_memread(s, raddr, rsp + i, to_read);\n+ }\n }\n \n void tpm_util_startup(QTestState *s, tx_func *tx)\ndiff --git a/tests/qtest/tpm-util.h b/tests/qtest/tpm-util.h\nindex 0cb28dd6e5..681544e7d8 100644\n--- a/tests/qtest/tpm-util.h\n+++ b/tests/qtest/tpm-util.h\n@@ -24,10 +24,15 @@ typedef void (tx_func)(QTestState *s,\n const unsigned char *req, size_t req_size,\n unsigned char *rsp, size_t rsp_size);\n \n+void tpm_wait_till_bit_clear(QTestState *s, uint64_t addr, uint32_t mask);\n void tpm_util_crb_transfer(QTestState *s,\n const unsigned char *req, size_t req_size,\n unsigned char *rsp, size_t rsp_size);\n \n+void tpm_util_crb_chunk_transfer(QTestState *s,\n+ const unsigned char *req, size_t req_size,\n+ unsigned char *rsp, size_t rsp_size);\n+\n void tpm_util_startup(QTestState *s, tx_func *tx);\n void tpm_util_pcrextend(QTestState *s, tx_func *tx);\n void tpm_util_pcrread(QTestState *s, tx_func *tx,\n", "prefixes": [ "v5", "05/10" ] }