From patchwork Mon Jul 31 08:45:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: LeoLiu-oc X-Patchwork-Id: 708622 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DD0CEC04A94 for ; Mon, 31 Jul 2023 08:47:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231941AbjGaIrN (ORCPT ); Mon, 31 Jul 2023 04:47:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229646AbjGaIqj (ORCPT ); Mon, 31 Jul 2023 04:46:39 -0400 Received: from mx1.zhaoxin.com (MX1.ZHAOXIN.COM [210.0.225.12]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 55DE92110 for ; Mon, 31 Jul 2023 01:45:22 -0700 (PDT) X-ASG-Debug-ID: 1690793117-086e23186a033b0001-Xm9f1P Received: from ZXSHMBX1.zhaoxin.com (ZXSHMBX1.zhaoxin.com [10.28.252.163]) by mx1.zhaoxin.com with ESMTP id ajcNKjYAUBEvU9rJ (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NO); Mon, 31 Jul 2023 16:45:17 +0800 (CST) X-Barracuda-Envelope-From: LeoLiu-oc@zhaoxin.com X-Barracuda-RBL-Trusted-Forwarder: 10.28.252.163 Received: from ZXBJMBX03.zhaoxin.com (10.29.252.7) by ZXSHMBX1.zhaoxin.com (10.28.252.163) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Mon, 31 Jul 2023 16:45:17 +0800 Received: from xin.lan (10.32.64.1) by ZXBJMBX03.zhaoxin.com (10.29.252.7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.16; Mon, 31 Jul 2023 16:45:16 +0800 X-Barracuda-RBL-Trusted-Forwarder: 10.28.252.163 From: LeoLiu-oc X-Barracuda-RBL-Trusted-Forwarder: 10.29.252.7 To: , , , , , , , , CC: , , , , leoliu-oc Subject: [PATCH v2 0/2] Add Zhaoxin HW RNG support Date: Mon, 31 Jul 2023 16:45:13 +0800 X-ASG-Orig-Subj: [PATCH v2 0/2] Add Zhaoxin HW RNG support Message-ID: <20230731084515.2057375-1-LeoLiu-oc@zhaoxin.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 X-Originating-IP: [10.32.64.1] X-ClientProxiedBy: zxbjmbx1.zhaoxin.com (10.29.252.163) To ZXBJMBX03.zhaoxin.com (10.29.252.7) X-Barracuda-Connect: ZXSHMBX1.zhaoxin.com[10.28.252.163] X-Barracuda-Start-Time: 1690793117 X-Barracuda-Encrypted: ECDHE-RSA-AES128-GCM-SHA256 X-Barracuda-URL: https://10.28.252.35:4443/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at zhaoxin.com X-Barracuda-Scan-Msg-Size: 811 X-Barracuda-BRTS-Status: 1 X-Barracuda-Bayes: INNOCENT GLOBAL 0.0000 1.0000 -2.0210 X-Barracuda-Spam-Score: -2.02 X-Barracuda-Spam-Status: No, SCORE=-2.02 using global scores of TAG_LEVEL=1000.0 QUARANTINE_LEVEL=1000.0 KILL_LEVEL=9.0 tests= X-Barracuda-Spam-Report: Code version 3.2, rules version 3.2.3.112114 Rule breakdown below pts rule name description ---- ---------------------- -------------------------------------------------- Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: leoliu-oc Implemented Zhaoxin rng driver to add support for Zhaoxin HW RNG. Both Zhaoxin-rng and via-rng rely on the XSTORE feature, but the actual implementation is different. So add Vendor ID/Family restrictions in via-rng module. v1->v2: * Modify via-rng in a separate patch. * Fix some formatting issues. leoliu-oc (2): hwrng: via-rng: convert to x86_cpu_id probing hwrng: add Zhaoxin HW RNG driver drivers/char/hw_random/Kconfig | 13 +++++ drivers/char/hw_random/Makefile | 1 + drivers/char/hw_random/via-rng.c | 15 +++-- drivers/char/hw_random/zhaoxin-rng.c | 87 ++++++++++++++++++++++++++++ 4 files changed, 108 insertions(+), 8 deletions(-) create mode 100644 drivers/char/hw_random/zhaoxin-rng.c