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Tue, 21 Mar 2023 05:30:10 +0000 (GMT) Received: by gfwa601.aus.stglabs.ibm.com (Postfix, from userid 155676) id 4949C2E5673; Tue, 21 Mar 2023 00:30:10 -0500 (CDT) From: Ninad Palsule To: qemu-devel@nongnu.org Cc: Ninad Palsule , joel@jms.id.au, andrew@aj.id.au, stefanb@linux.ibm.com, clg@kaod.org Subject: [PATCH 1/3] Add support for TPM devices over I2C bus Date: Tue, 21 Mar 2023 00:29:59 -0500 Message-Id: <20230321053001.3886666-2-ninad@linux.ibm.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20230321053001.3886666-1-ninad@linux.ibm.com> References: <20230321053001.3886666-1-ninad@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: UQ4YrOFzKsacz9MlZV4DhCl-3HJIZ_qi X-Proofpoint-ORIG-GUID: UQ4YrOFzKsacz9MlZV4DhCl-3HJIZ_qi X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-21_02,2023-03-20_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 clxscore=1015 malwarescore=0 mlxscore=0 suspectscore=0 impostorscore=0 bulkscore=0 adultscore=0 spamscore=0 mlxlogscore=899 lowpriorityscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2303150002 definitions=main-2303210036 Received-SPF: pass client-ip=148.163.156.1; envelope-from=ninad@us.ibm.com; helo=mx0a-001b2d01.pphosted.com X-Spam_score_int: -19 X-Spam_score: -2.0 X-Spam_bar: -- X-Spam_report: (-2.0 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Tue, 21 Mar 2023 09:22:50 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: 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 This is a documentation change for I2C TPM device support. Qemu already supports devices attached to ISA and sysbus. This drop adds support for the I2C bus attached TPM devices. Signed-off-by: Ninad Palsule --- docs/specs/tpm.rst | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/docs/specs/tpm.rst b/docs/specs/tpm.rst index 535912a92b..79a79f0640 100644 --- a/docs/specs/tpm.rst +++ b/docs/specs/tpm.rst @@ -21,11 +21,14 @@ QEMU files related to TPM TIS interface: - ``hw/tpm/tpm_tis_common.c`` - ``hw/tpm/tpm_tis_isa.c`` - ``hw/tpm/tpm_tis_sysbus.c`` + - ``hw/tpm/tpm_tis_i2c.c`` - ``hw/tpm/tpm_tis.h`` Both an ISA device and a sysbus device are available. The former is used with pc/q35 machine while the latter can be instantiated in the -Arm virt machine. +Arm virt machine. An I2C device support is also added which can be +instantiated in the arm based emulation machine. I2C model only supports +TPM2 protocol. CRB interface ------------- -- 2.37.2