From patchwork Mon Jul 4 13:58:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Martin Fernandez X-Patchwork-Id: 587312 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 54622C43334 for ; Mon, 4 Jul 2022 13:59:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234531AbiGDN7L (ORCPT ); Mon, 4 Jul 2022 09:59:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37168 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234528AbiGDN7E (ORCPT ); Mon, 4 Jul 2022 09:59:04 -0400 Received: from mail-vs1-xe2a.google.com (mail-vs1-xe2a.google.com [IPv6:2607:f8b0:4864:20::e2a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 245A3DEE6 for ; Mon, 4 Jul 2022 06:59:01 -0700 (PDT) Received: by mail-vs1-xe2a.google.com with SMTP id o190so9103559vsc.5 for ; Mon, 04 Jul 2022 06:59:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=eclypsium.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=k/5GR/KX7teTknQriuvUZb8IVKxvs7e03/RMVm9+BQI=; b=GLaHhFySQ9gOLZrKKeJvwwMHsWCWM3q5PzByQA9CXY12npsM3Osv/S1W71q725TU13 H5NgkCeE2bqltfg5cRYAP4bll17byyhwEuYP2oQvTfgEY8qwK7/IU098iZXMhug19osr ZVHqSxQ9/UM+9k0N0DjOiIDLRQUJrp4S0oIyi3G8Ex4p6qAXsybjVeMBv4Dbh9566/GV A83eDRvuXPThAtIIG2X0ViUECgwh1c0F7AZNRLFNCik5k/6jdzoHzuKZiGlJ6RaoZy2B YaEZhCfWYPzaUbYiNoV+pDcaYkqv3AlFGu8AyC1alTFvHvP1W/TLvNOxjNOHCeYvPNML BAOw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=k/5GR/KX7teTknQriuvUZb8IVKxvs7e03/RMVm9+BQI=; b=5BXDsZo8gXTsbF7XVhaSiODddtblfk/m2XkYAo+yWj3qcSJXLO0hj0Ul9Chy+htsFq 1UWGwackzR1iD7gIg4+eSokoAffqohMcbbbhQdj0kClQJJCUUkWx+sPh4vv0agX/DyPA PnIJoUVrlwz07GGHR4q+dK7L1r0kxsrF+60gWRpbq1kMN7f0KvNP4TIUe/NSNpWzNpan EnAwJ/+qwYJAeAf+Cn/lTklQb81FEHatrJlFWbDzoopJV/9nfd/QjGiSFf500R/C1vxz JjRMJh3bswPFw4ybRm1Qn6oTJjRHw6Xajb1Z8Sz2yLv6iXNNgCNWG/64HipUD1DQq1GK TuxA== X-Gm-Message-State: AJIora9prX0qmb4jOf0bIichMgGyqiYCj48YescG3+ckhoblsjL5joGd d0g977+260DfYt5G+pFUchc0jg== X-Google-Smtp-Source: AGRyM1t9iMJScGmHX08KEczn8L5RecJYqWxEG84yc3pB37kCvlZO6ibtfKtkmWCmJt0mxLsO9yKhOQ== X-Received: by 2002:a67:ac0d:0:b0:356:a09d:b063 with SMTP id v13-20020a67ac0d000000b00356a09db063mr6746100vse.69.1656943140208; Mon, 04 Jul 2022 06:59:00 -0700 (PDT) Received: from localhost ([181.97.174.128]) by smtp.gmail.com with ESMTPSA id p2-20020ab01ec2000000b003828ebf6b49sm722929uak.4.2022.07.04.06.58.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 04 Jul 2022 06:58:59 -0700 (PDT) From: Martin Fernandez To: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-mm@kvack.org, kunit-dev@googlegroups.com, linux-kselftest@vger.kernel.org Cc: tglx@linutronix.de, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, x86@kernel.org, hpa@zytor.com, ardb@kernel.org, dvhart@infradead.org, andy@infradead.org, gregkh@linuxfoundation.org, rafael@kernel.org, rppt@kernel.org, akpm@linux-foundation.org, daniel.gutson@eclypsium.com, hughsient@gmail.com, alex.bazhaniuk@eclypsium.com, alison.schofield@intel.com, keescook@chromium.org, Martin Fernandez Subject: [PATCH v9 2/9] mm/mmzone: Tag pg_data_t with crypto capabilities Date: Mon, 4 Jul 2022 10:58:26 -0300 Message-Id: <20220704135833.1496303-3-martin.fernandez@eclypsium.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220704135833.1496303-1-martin.fernandez@eclypsium.com> References: <20220704135833.1496303-1-martin.fernandez@eclypsium.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-efi@vger.kernel.org Add a new member in the pg_data_t struct to tell whether the node corresponding to that pg_data_t is able to do hardware memory encryption. This will be read from sysfs. Signed-off-by: Martin Fernandez --- include/linux/mmzone.h | 3 +++ mm/page_alloc.c | 1 + 2 files changed, 4 insertions(+) diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index aab70355d64f..6fd4785f1d05 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -883,6 +883,9 @@ typedef struct pglist_data { struct task_struct *kcompactd; bool proactive_compact_trigger; #endif + + bool crypto_capable; + /* * This is a per-node reserve of pages that are not available * to userspace allocations. diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e008a3df0485..147437329ac7 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7729,6 +7729,7 @@ static void __init free_area_init_node(int nid) pgdat->node_id = nid; pgdat->node_start_pfn = start_pfn; pgdat->per_cpu_nodestats = NULL; + pgdat->crypto_capable = memblock_node_is_crypto_capable(nid); if (start_pfn != end_pfn) { pr_info("Initmem setup node %d [mem %#018Lx-%#018Lx]\n", nid,