From mboxrd@z Thu Jan 1 00:00:00 1970 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 57BB1C433EF for ; Fri, 29 Apr 2022 20:17:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1380427AbiD2UVO (ORCPT ); Fri, 29 Apr 2022 16:21:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1380496AbiD2UVL (ORCPT ); Fri, 29 Apr 2022 16:21:11 -0400 Received: from mail-oa1-x31.google.com (mail-oa1-x31.google.com [IPv6:2001:4860:4864:20::31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 22C27A0BF1 for ; Fri, 29 Apr 2022 13:17:52 -0700 (PDT) Received: by mail-oa1-x31.google.com with SMTP id 586e51a60fabf-e5ca5c580fso9219728fac.3 for ; Fri, 29 Apr 2022 13:17:52 -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=cuoU1kSVf8VEBS5kxyG+ti9eeLYydPT4J1CXt5LwLhU=; b=Ca5CpkEdAGoDq4Rv1TW6+hSfJvX+bFxVgDxtp2Me/AhtkYKBKy7HDq9kO20qbFkCU/ oD5DMChdyFmU3n3DgPNgqCCNm7kr+52q5L9Hs/atSrY+4iP2qvhY/q2YA44Z2lv4tRjd v+qrNTH6cIBZ9Su9FBIIHdnb4f7y2STK1hcq14DBBiSA+1dXsvH5vR9SgVQv5TpKV515 6JTZ+l5RXQFB1Sq+ZHqkQs2djzOBE2pbg+fG2kXx5gpAKt3GP7C7mx5AJDZr8JYHBth7 TYSaK6qQeMoDiSKDnXRZLJRvuIFFmoFjKEfYjUbHtaeI2RjnrZIYZSMrNqd1ZoT95Xiv ckjw== 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=cuoU1kSVf8VEBS5kxyG+ti9eeLYydPT4J1CXt5LwLhU=; b=8M5ne0AQNKejHwVaUcsYYfjY7NdWQmnFPJnaVRFoaN3flkNOXbiwcubnz8HQF9sHCS cwLVSnP4Dfv9VM1MLckO7aSX6Ina+TKQYTcmIIsmHkfQ7LO5U/Ov31gUAJmIeX6WLP5p GfLFunJePFjQMoGY/mUWacfApglVmJfVuf0V8e8Ni2pMXY1n8PwHj2W9Kry101h4cMhj aN/Gr0qAOe0FZJdLGmTn5c7FqTMo+x8ZbbRFKNLcQQ4SpegoX4/CV4k/Ag41FWjNvd6h ogQpdxsPy3RDzFrhqOiUiIZPJrnYywya28tMvwrz3k7VilwIw0kB/kp+qqvnRsJwIDMK Sdow== X-Gm-Message-State: AOAM532JPUzVUKUljyRcAaU8IEN7TwTkma85Yr3gAE2nZkv4Hy9/uhnO fJTqHSXk5kx5hx/APcTZFO5fRmmh6hHFo31bnVexsjkRr5NMTp2wz5OjCE9mK9eSwrMlt/cAMgC uJAdLaL+Rqx9u4eOFPPO47j4iLYeRXTzq0SyZJWzc8PRNTTwIBOiiyFLc9wwoQmb7vYF693Da3s vB/ilh+50Eucnjzjs3HLc= X-Google-Smtp-Source: ABdhPJxIe/y2ZbNmKFx3Owc3D12ozpXuX/TsxcZP+iWHDA2M91qfr82Tlpg84wHwV/O7VsilCNZp4w== X-Received: by 2002:a05:6870:14d5:b0:ec:ab0e:d106 with SMTP id l21-20020a05687014d500b000ecab0ed106mr469524oab.65.1651263471218; Fri, 29 Apr 2022 13:17:51 -0700 (PDT) Received: from localhost ([181.97.174.128]) by smtp.gmail.com with ESMTPSA id w12-20020a4ad02c000000b0035eb4e5a6aesm1130791oor.4.2022.04.29.13.17.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 29 Apr 2022 13:17:50 -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 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 v8 2/8] mm/mmzone: Tag pg_data_t with crypto capabilities Date: Fri, 29 Apr 2022 17:17:11 -0300 Message-Id: <20220429201717.1946178-3-martin.fernandez@eclypsium.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220429201717.1946178-1-martin.fernandez@eclypsium.com> References: <20220429201717.1946178-1-martin.fernandez@eclypsium.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@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 46ffab808f03..89054af9e599 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -886,6 +886,9 @@ 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 0e42038382c1..a244151045b4 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7699,6 +7699,7 @@ 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, -- 2.30.2