From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-dl1-f48.google.com (mail-dl1-f48.google.com [74.125.82.48]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 73D223F44D3 for ; Fri, 15 May 2026 21:14:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.82.48 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778879695; cv=none; b=kfyQdATUrSPt2ZpE5plAWus2FJ/+OUMFPJJY5vq0Sad1wxihEyTl28646i+cshgpgrZI4BjNmE1t/ricV0r5/hLiXERvrY2RpGznrmJZMY7WXvWgkG8jidDl2ebyoK7VRqyYA7LkiqTb3qhvQkVLnHi0mxAEXlxyViBeYJ2OA90= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778879695; c=relaxed/simple; bh=1PNKH8ntc5kC54kp2fuFbfDzJKv8jvUIR3tksHCBOAs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=BXAca/5ewln0nKi/7ReYRYCRMiuN7IZ3Ea8oFimgiN+veXpB+i55NoQaiJfaxzPl5y3i6qoi3GsAZy8XP5GEG9Qy2ARdNG7uSTmnspkNDKWfrigDdZCraRrg4XGECUlCM930gq8yG8Mjx2hY0qR50ChNZ231X0bh3BAu4aJoNfY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=n4B9AeC9; arc=none smtp.client-ip=74.125.82.48 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="n4B9AeC9" Received: by mail-dl1-f48.google.com with SMTP id a92af1059eb24-130c9dcbd25so971226c88.1 for ; Fri, 15 May 2026 14:14:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1778879693; x=1779484493; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=0Web2s5uVg47aYyCtELeKAMQeYbkPbYPk/ttB5U3wMg=; b=n4B9AeC9zDx0FEy61vxCAx34bh29XmU3Z5BLbMHLAWE6O/wVfLEQ7FP3ZxbJ1AoO+3 Q4IHV3iLrro6B9OWZyJ0ySCAfr2ANN3nJAxGRaz1CK03Eoyc8cXXyFDi1p4zrIbByLoF G/cWmmNLtCXFwLtotFmS8RwPOGBQ8Im+/5o1GAj6F/uWiCeG+pViN8+NaZVMMiMIq38q cMdvzU+l67iNywwvtRHAUcUPuYfZ6kAu9H14D7UOnAwYg1752Zphkw9oNYZwOz3VTv+A VXOCI69Ejr5PPmdrz6GB/RqJEsB8H1kWK3SuoRQfFy01STwODufsTeKZq0c9so5S+Zxy guMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1778879693; x=1779484493; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=0Web2s5uVg47aYyCtELeKAMQeYbkPbYPk/ttB5U3wMg=; b=lZ9DiB/JASBGGxG3HDw9I8bLS0DPWYUurXqo0R+JDYkJGzdYxFyNQwZgphkF3lfdoN rVGNp2RiFDZX2dEpi0c+kJs2a2FNshSaP23P//X1VPR8j3N515xz5XdpRu6Nl8DtWUGE fH9pDL6TdZnlVt5Vs5WN+jZmiTPpOZ3c5n8v4Kjf7yFbBhrfzZY2p8oaClIukxl9vbH4 AVztKr8qMu+J3E9DeQqcMI7zglBXUW1D93fr6j9JVTx1XcMkBxFC2j5MXLIScVvEphYH UaUee3idqNejI9IAKlQWtgDsZ77t1EpxO9RrEz8LYumKhgENTaxg2M06MfUVWwjXc+Ti pQcA== X-Forwarded-Encrypted: i=1; AFNElJ/hLqJbDRvJE/vWH8jIKJintMiZGIC7AhFvZhfbVcQE/y4D4s/1CfPiUptTDFHAcgKw72UsaFm+llY=@vger.kernel.org X-Gm-Message-State: AOJu0YzJpcQmx+P4XXbzBXjGjJipjE5/lFazlvEKL/UJnZEM7qJn1f8J hP+BgHazCykDMxnRVjgP46R7wx87ZDNty7N7p/slEVai3Fi9vabsbAp7 X-Gm-Gg: Acq92OGndqbkSwATh13+lmegI8x/hJQ3zrpzm3jBG2KhUimHvAznPi++17M3UW8gOkO aE5AhcGIjduihxjfd1RXCufjAYG5P8S1kOTUQfaF5ntefspk3jZilNKTyblQqwEbCqJv/fg/B6/ kVPdcPzMYEV1aYbk8dcaShfjRzFCpacBsd0tma4fTVhbX6SmHyqxKyjHi0lZKxRPdfSqJs+LInF eVBsi+TIWDuq71/k1m4jfICh7YRXw8LTK0n4swoJvTBGHGWfOOzm2wMbaOh02D7sussHsBjOPXl MhsmQa84HtzmoMaxdbtFWEsGlL2RU+e+GeQRA5xexT4qCU1/0QzCGpnbJKVEFpV/9KsPXnHfArX YQ6fGWmlQxzXqEpw2LaCuKa4mrnK7Dp4FwlDR7HDyOALDE8F2Rrmv1TU4lKZ6T6EpvWIMM7DSrc xgZZ8iEXFDJaxkHMZ+Hiy0Gjc6o6lL41Y= X-Received: by 2002:a05:7022:79d:b0:12a:6abf:ab1c with SMTP id a92af1059eb24-134ffe943c0mr2448441c88.11.1778879692592; Fri, 15 May 2026 14:14:52 -0700 (PDT) Received: from mimas.lan ([2603:8000:df01:38f7:a6bb:6dff:fecf:e71a]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-134cc3490bcsm9740184c88.15.2026.05.15.14.14.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 15 May 2026 14:14:52 -0700 (PDT) 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@gmail.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, daniel.kiper@oracle.com, andrew.cooper3@citrix.com, trenchboot-devel@googlegroups.com Subject: [PATCH v16 14/38] tpm/sysfs: Show locality used by kernel Date: Fri, 15 May 2026 14:13:46 -0700 Message-ID: <20260515211410.31440-15-ross.philipson@gmail.com> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260515211410.31440-1-ross.philipson@gmail.com> References: <20260515211410.31440-1-ross.philipson@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Daniel P. Smith" Expose the current locality used by the kernel TPM driver via the sysfs interface. Co-developed-by: Jarkko Sakkinen Signed-off-by: Jarkko Sakkinen Signed-off-by: Daniel P. Smith Signed-off-by: Ross Philipson --- 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 f5dcadb1ab3c..772c4ae67957 100644 --- a/drivers/char/tpm/tpm-sysfs.c +++ b/drivers/char/tpm/tpm-sysfs.c @@ -308,6 +308,14 @@ 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) @@ -335,6 +343,7 @@ 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, }; @@ -343,6 +352,7 @@ static struct attribute *tpm2_dev_attrs[] = { #ifdef CONFIG_TCG_TPM2_HMAC &dev_attr_null_name.attr, #endif + &dev_attr_locality.attr, NULL }; -- 2.47.3