From patchwork Fri Mar 28 23:08:12 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ross Philipson X-Patchwork-Id: 14032534 Received: from mx0a-00069f02.pphosted.com (mx0a-00069f02.pphosted.com [205.220.165.32]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4E1CD1F4E34; Fri, 28 Mar 2025 23:14:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.165.32 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743203679; cv=none; b=GILnPdGwGqJokiO96+RMwWmjted68sIyR/D45oZCjSRsfIsCjafQ4MNoLpADBZFr8FjDXYgdrffW4vsfdwdxJa6G/pnDaVMQQPeX6mll0Awe2VyZJTr6OZZo07KofG+Y7aN94oyb5DUUrZrGkGGfiPkapBiCAqkX1Q0EG/P5EYk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743203679; c=relaxed/simple; bh=+PmIuyNK+4awhsE4aojbYix6PiS1trn5xAQYLYmeZhE=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=mui7u9DvFqC5x+vAP9gjBApItuItK6wrCMRMVzzAYU/b28WKxXPPy3PaiFVDtigvYy5+GHTlS5719uaieI0TRI0lDUlp0ZRQGfwDB7Xn152cr9o/1DILfKKkfsRLrjPf3LphJHWvnYSuRLz1ziGSjWy2mKlh8VXsRYTDsm4uMNA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com; spf=pass smtp.mailfrom=oracle.com; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b=MrjgLNCm; arc=none smtp.client-ip=205.220.165.32 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oracle.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oracle.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=oracle.com header.i=@oracle.com header.b="MrjgLNCm" Received: from pps.filterd (m0333521.ppops.net [127.0.0.1]) by mx0b-00069f02.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 52SKWDGQ026700; Fri, 28 Mar 2025 23:14:12 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oracle.com; h=cc :content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=corp-2023-11-20; bh=CowCr Kkz6qMYC8ITtUUSe4qTq9Lm5ZaWaqeyPEIlDy0=; b=MrjgLNCmBTmXxirRwOrN5 55e/27G1GKQ8cnv9oeMsKh3xyu7X4gYB7eePUVlOFI4YCy2Hoo6mpo/X7hU8KjdF QAh3OkKmdLN59DBPmDhOAoJEuvR2XG5cb1kuPOpoEVo1ZE+9svrGfGYgkPIx7gRT 3DM0dTPvPZcKrcMwGkwjVcWkwvFPnwonQO81tXe6oCwKC51/wU4E8LtfaGtoEvnN tTgRzrXBhOf89em7WZF9dLFPSDbIZSdQBN8LV6k52Wz/WMTmTE+xxOfe5eER/jDN mED/TWMWqVfrJQWZJo/OmvZgZ2cP1W7O+C8PlgngHdP/ZLLj5gGvIACkkjv+bdkQ Q== Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.appoci.oracle.com [147.154.114.232]) by mx0b-00069f02.pphosted.com (PPS) with ESMTPS id 45hncryu4g-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 28 Mar 2025 23:14:11 +0000 (GMT) Received: from pps.filterd (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (8.18.1.2/8.18.1.2) with ESMTP id 52SMxMLQ029853; Fri, 28 Mar 2025 23:14:11 GMT Received: from pps.reinject (localhost [127.0.0.1]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 45jjc5smn4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Mar 2025 23:14:11 +0000 Received: from phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 52SNE9m7035345; Fri, 28 Mar 2025 23:14:10 GMT Received: from bur-virt-x6-2-100.us.oracle.com (bur-virt-x6-2-100.us.oracle.com [10.153.92.40]) by phxpaimrmta02.imrmtpd1.prodappphxaev1.oraclevcn.com (PPS) with ESMTPS id 45jjc5smk8-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 28 Mar 2025 23:14:09 +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 v13 17/19] tpm, sysfs: Show locality used by kernel Date: Fri, 28 Mar 2025 16:08:12 -0700 Message-Id: <20250328230814.2210230-18-ross.philipson@oracle.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20250328230814.2210230-1-ross.philipson@oracle.com> References: <20250328230814.2210230-1-ross.philipson@oracle.com> Precedence: bulk X-Mailing-List: linux-integrity@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1095,Hydra:6.0.680,FMLib:17.12.68.34 definitions=2025-03-28_11,2025-03-27_02,2024-11-22_01 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 phishscore=0 spamscore=0 bulkscore=0 suspectscore=0 mlxscore=0 mlxlogscore=999 malwarescore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2502280000 definitions=main-2503280156 X-Proofpoint-GUID: tOPBS-UXgTDyrs0R3KTFfiQby6G9te2i X-Proofpoint-ORIG-GUID: tOPBS-UXgTDyrs0R3KTFfiQby6G9te2i Expose the locality used by the kernel to sysfs. 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 94231f052ea7..2da5857e223b 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 *dev, } static DEVICE_ATTR_RO(tpm_version_major); +static ssize_t locality_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct tpm_chip *chip = 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[] = { &dev_attr_durations.attr, &dev_attr_timeouts.attr, &dev_attr_tpm_version_major.attr, + &dev_attr_locality.attr, NULL, }; @@ -344,6 +353,7 @@ static struct attribute *tpm2_dev_attrs[] = { #ifdef CONFIG_TCG_TPM2_HMAC &dev_attr_null_name.attr, #endif + &dev_attr_locality.attr, NULL };