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Mon, 15 Dec 2025 23:40:38 +0000 (GMT) Received: from pps.filterd (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 5BFMP3ui024537; Mon, 15 Dec 2025 23:40:37 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4b0xk9t8av-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 15 Dec 2025 23:40:37 +0000 Received: from phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 5BFNeaGf028457; Mon, 15 Dec 2025 23:40:36 GMT Received: from bur-virt-x6-2-100.us.oracle.com (bur-virt-x6-2-100.us.oracle.com [10.153.92.40]) by phxpaimrmta01.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 4b0xk9t89j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Mon, 15 Dec 2025 23:40:36 +0000 From: Ross Philipson To: linux-kernel@vger.kernel.org, x86@kernel.org, linux-integrity@vger.kernel.org, linux-doc@vger.kernel.org, linux-crypto@vger.kernel.org, kexec@lists.infradead.org, linux-efi@vger.kernel.org, iommu@lists.linux.dev Cc: ross.philipson@oracle.com, dpsmith@apertussolutions.com, tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, hpa@zytor.com, dave.hansen@linux.intel.com, ardb@kernel.org, mjg59@srcf.ucam.org, James.Bottomley@hansenpartnership.com, peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca, luto@amacapital.net, nivedita@alum.mit.edu, herbert@gondor.apana.org.au, davem@davemloft.net, corbet@lwn.net, ebiederm@xmission.com, dwmw2@infradead.org, baolu.lu@linux.intel.com, kanth.ghatraju@oracle.com, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com Subject: [PATCH v15 11/28] tpm/sysfs: Show locality used by kernel Date: Mon, 15 Dec 2025 15:32:59 -0800 Message-ID: <20251215233316.1076248-12-ross.philipson@oracle.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20251215233316.1076248-1-ross.philipson@oracle.com> References: <20251215233316.1076248-1-ross.philipson@oracle.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.9,FMLib:17.12.100.49 definitions=2025-12-15_05,2025-12-15_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 malwarescore=0 bulkscore=0 suspectscore=0 phishscore=0 adultscore=0 mlxlogscore=999 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2510240000 definitions=main-2512150204 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjUxMjE1MDIwNCBTYWx0ZWRfXxUR+wT33/7GF mJ+1N5qej0hiPUSWQjNM6TKkYUUS2QQ1gFbaJSXjdf95qVkX3QiofJYKyplRfkZ1qGnltXVUhc8 Ax86NJl5CWj8tCnXWdKX4B8bRHNDjP9p1YkdjZZmiH7MlKEyaQ3vFv7Ofxvvg2uxe0Xd/Qmjag6 W+WsjSQqYBSy5xAF4Lq1RfJ2DVzDe/wXYVcg1QIVMManf7HuPgFH/WyA/1XZc5/cZY67FW3VK+l VDssQcExeL2oqBHtOU8i4CkSAwf9PFQHnhNKaTEL4jCA0G2D1VEoGoRu92PWXJwhvbOVB0bx76K ZivHsrpV5peM8g/BH4b3kAvSWh9qGQfZKnRw1u0swlrpFf1fsvUdWu0ux0vohilZrvEvWLddrHy 2nX35etVWcH+VOPvGGiO+nDBPC4D1Q== X-Authority-Analysis: v=2.4 cv=TL9Iilla c=1 sm=1 tr=0 ts=69409c76 cx=c_pps a=XiAAW1AwiKB2Y8Wsi+sD2Q==:117 a=XiAAW1AwiKB2Y8Wsi+sD2Q==:17 a=wP3pNCr1ah4A:10 a=VkNPw1HP01LnGYTKEx00:22 a=yPCof4ZbAAAA:8 a=VwQbUJbxAAAA:8 a=l4rzuocJ5qbfFBX_5RcA:9 X-Proofpoint-GUID: c-MKPKc_BhmYTE9HgVmHCstNqx3smh1Q X-Proofpoint-ORIG-GUID: c-MKPKc_BhmYTE9HgVmHCstNqx3smh1Q Content-Type: text/plain; charset="utf-8" Expose the current locality used by the kernel TPM driver via the sysfs interface. Signed-off-by: Ross Philipson Signed-off-by: Jarkko Sakkinen --- drivers/char/tpm/tpm-sysfs.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/char/tpm/tpm-sysfs.c b/drivers/char/tpm/tpm-sysfs.c index 530037a3f4ba..375d487565c4 100644 --- a/drivers/char/tpm/tpm-sysfs.c +++ b/drivers/char/tpm/tpm-sysfs.c @@ -309,6 +309,14 @@ static ssize_t tpm_version_major_show(struct device *d= ev, } static DEVICE_ATTR_RO(tpm_version_major); =20 +static ssize_t locality_show(struct device *dev, struct device_attribute *= attr, char *buf) +{ + struct tpm_chip *chip =3D to_tpm_chip(dev); + + return sprintf(buf, "%u\n", chip->kernel_locality); +} +static DEVICE_ATTR_RO(locality); + #ifdef CONFIG_TCG_TPM2_HMAC static ssize_t null_name_show(struct device *dev, struct device_attribute = *attr, char *buf) @@ -336,6 +344,7 @@ static struct attribute *tpm1_dev_attrs[] =3D { &dev_attr_durations.attr, &dev_attr_timeouts.attr, &dev_attr_tpm_version_major.attr, + &dev_attr_locality.attr, NULL, }; =20 @@ -344,6 +353,7 @@ static struct attribute *tpm2_dev_attrs[] =3D { #ifdef CONFIG_TCG_TPM2_HMAC &dev_attr_null_name.attr, #endif + &dev_attr_locality.attr, NULL }; =20 --=20 2.43.7