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Thu, 24 Sep 2026 01:25:36 +0000 (GMT) Received: from sbct-3.pok.ibm.com (unknown [9.47.158.153]) by smtpav05.wdc07v.mail.ibm.com (Postfix) with ESMTP; Thu, 24 Sep 2026 01:25:35 +0000 (GMT) From: Stefan Berger To: qemu-devel@nongnu.org Cc: armenon@redhat.com, marcandre.lureau@gmail.com, Stefan Berger Subject: [PATCH 01/10] tpm_util: Pass TPMVersion to function writing fatal error response Date: Wed, 23 Sep 2026 21:25:18 -0400 Message-ID: <20260924012527.858527-2-stefanb@linux.ibm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260924012527.858527-1-stefanb@linux.ibm.com> References: <20260924012527.858527-1-stefanb@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: zoGU40poigFTYUf3KoBRtGP8yehlN6TK X-Authority-Analysis: v=2.4 cv=I43w19gg c=1 sm=1 tr=0 ts=6ab47c12 cx=c_pps a=bLidbwmWQ0KltjZqbj+ezA==:117 a=bLidbwmWQ0KltjZqbj+ezA==:17 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=iQ6ETzBq9ecOQQE5vZCe:22 a=VnNF1IyMAAAA:8 a=ZdjYBk6P2T0J8aFbIr8A:9 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTI0MDAwNiBTYWx0ZWRfX99WqA0ZY11Fm YhW9L4o/5x/bkYb97KHru/zPnCPnW+tRg+9FsjY3YibNh8pYjw8uz3ReD8uCIEvjkNCTmQntftU OJmTcb4UhevmekP4U0BDaDVz84OVUfO7RKO6GNIi/T/u1tDtO7unL/n3+wm3b+bSNIFQ2jrqAmp UOIHEKxVX/tatWdVxW9IDW0Ynq8TjFdRM5QidWJzPNDCcKgihtADRxIWv2m1ChTITZigkFccuyk DH+kgJkt1uUREWDdx7u5YzYS6UW4StC8qHYNKH08zZvu2hGOVFLdBBoNklyzb4Ya7t8VZjJcRkF cieqVqncFeeVSDzh3Azf3xK/jOasKJn/skXNSXCO5bTF78Zoi+IcJJRB3jfEUT8QLYP3jYtcMhD ylVgUsadis0xo4jU8cFMgJpA4hF4du5pvK/fA5YsQbGd3Eh22mdy2fQ4xtSmNyx054Nzi50voyc J0A7yHf1UEl8JbNMEEQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwOTI0MDAwNiBTYWx0ZWRfX6q1rblwll/SH 1AYoXBVZciVvtoopfnj6aWIOcsli9fuOWHvWXYrSpKIxOVOq1gIbs+LmkpY99VtZX0WlESQWwAI iVaks9A1OnQTOntCZIpSYyrt2T/WPhY= X-Proofpoint-GUID: VspG0_H77QChzxHmC7eTDz30z6sldQG_ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-23_08,2026-09-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 clxscore=1015 adultscore=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 phishscore=0 priorityscore=1501 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609240006 Received-SPF: pass client-ip=148.163.156.1; envelope-from=stefanb@linux.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -26 X-Spam_score: -2.7 X-Spam_bar: -- X-Spam_report: (-2.7 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=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: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Have tpm_util_write_fatal_error_response write a TPM version specific error response with error code TPM_FAIL for a TPM 1.2 and TPM_RC_FAILURE for a TPM 2. Adjust the callers. Signed-off-by: Stefan Berger --- backends/tpm/tpm_emulator.c | 3 ++- backends/tpm/tpm_passthrough.c | 2 +- backends/tpm/tpm_util.c | 12 +++++++++--- include/system/tpm_util.h | 3 ++- 4 files changed, 14 insertions(+), 6 deletions(-) diff --git a/backends/tpm/tpm_emulator.c b/backends/tpm/tpm_emulator.c index 95d2de2f48..16ae44c8d7 100644 --- a/backends/tpm/tpm_emulator.c +++ b/backends/tpm/tpm_emulator.c @@ -270,7 +270,8 @@ static void tpm_emulator_handle_request(TPMBackend *tb, TPMBackendCmd *cmd, tpm_emulator_unix_tx_bufs(tpm_emu, cmd->in, cmd->in_len, cmd->out, cmd->out_len, &cmd->selftest_done, errp) < 0) { - tpm_util_write_fatal_error_response(cmd->out, cmd->out_len); + tpm_util_write_fatal_error_response(cmd->out, cmd->out_len, + TPM_EMULATOR(tb)->tpm_version); } } diff --git a/backends/tpm/tpm_passthrough.c b/backends/tpm/tpm_passthrough.c index a9f35ab7d6..8a4f8183c7 100644 --- a/backends/tpm/tpm_passthrough.c +++ b/backends/tpm/tpm_passthrough.c @@ -118,7 +118,7 @@ static void tpm_passthrough_unix_tx_bufs(TPMPassthruState *tpm_pt, err_exit: if (ret < 0) { - tpm_util_write_fatal_error_response(out, out_len); + tpm_util_write_fatal_error_response(out, out_len, tpm_pt->tpm_version); } tpm_pt->tpm_executing = false; diff --git a/backends/tpm/tpm_util.c b/backends/tpm/tpm_util.c index 264bff22a9..cdb7a48861 100644 --- a/backends/tpm/tpm_util.c +++ b/backends/tpm/tpm_util.c @@ -87,12 +87,18 @@ const PropertyInfo qdev_prop_tpm = { /* * Write an error message in the given output buffer. */ -void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len) +void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len, + TPMVersion tpm_version) { if (out_len >= sizeof(struct tpm_resp_hdr)) { - tpm_cmd_set_tag(out, TPM_TAG_RSP_COMMAND); + if (tpm_version == TPM_VERSION_1_2) { + tpm_cmd_set_tag(out, TPM_TAG_RSP_COMMAND); + tpm_cmd_set_error(out, TPM_FAIL); + } else { + tpm_cmd_set_tag(out, TPM2_ST_NO_SESSIONS); + tpm_cmd_set_error(out, TPM_RC_FAILURE); + } tpm_cmd_set_size(out, sizeof(struct tpm_resp_hdr)); - tpm_cmd_set_error(out, TPM_FAIL); } } diff --git a/include/system/tpm_util.h b/include/system/tpm_util.h index 1858693225..3ab2fe693d 100644 --- a/include/system/tpm_util.h +++ b/include/system/tpm_util.h @@ -25,7 +25,8 @@ #include "system/tpm.h" #include "qemu/bswap.h" -void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len); +void tpm_util_write_fatal_error_response(uint8_t *out, uint32_t out_len, + TPMVersion tpm_version); bool tpm_util_is_selftest(const uint8_t *in, uint32_t in_len); -- 2.55.0