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 C5244C433F5 for ; Mon, 25 Apr 2022 17:16:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243846AbiDYRTT (ORCPT ); Mon, 25 Apr 2022 13:19:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38128 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243839AbiDYRTA (ORCPT ); Mon, 25 Apr 2022 13:19:00 -0400 Received: from mail-oi1-x22f.google.com (mail-oi1-x22f.google.com [IPv6:2607:f8b0:4864:20::22f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 979F163F4 for ; Mon, 25 Apr 2022 10:15:55 -0700 (PDT) Received: by mail-oi1-x22f.google.com with SMTP id r8so17846701oib.5 for ; Mon, 25 Apr 2022 10:15:55 -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=WVNRKEKob2y9lFrXgNElxa26Uxh1XvllzgMqrT+R70+SAvu/khzVJ0sFW9Kny0Qa7N jLVQLq9bTQ71s6VakMPFRKCHzlO8ZQ8mMVLzhNDI47Tsc6K6t3zkkwCNQe76Hs/qU+h5 pff6FNHYBVqwtXfDT2vS4howEmhCTaodjYQw7fzcHX4fgvsmvS2MLEoXGEWf8QrHMsop kGxt72nAdiuqmo2bcyzM+I4DRQjwsBtp+Is15HwL9rka8zB2koeqRTkw+HAsvAlcMyfK u6R0LRV4pUi4IWR8NROkxZ2EmmJAi1skJ5sO/+YxWmwC+pZ4xs3as8lXszeFy8RS3TMf tmvA== 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=fO/ikhjXXbSb0Y9VtUk1pVSHD406osjQ50kDjMGMzbI/j1tk45w4zDHvrskMqdUqqv /+QzUVGmVV+aX552xuJgkOAAkbTgJQWTMvf71FgUQGQfrEUDQV/MN/ERwP3ByqzhmLUp jTjFTBFmLnSXXtX7ytCGdovnhz/9kb6lkWSe4gaBQh3o3dGceqg42/SQ8ELlkYoZhOf0 RGs0KxxAsuZfFkh8cMrXxjLQGHAe/Mvgl6dtPttaVYAaibAatvkh0dBUklmDe6l6rUmK DLE0dJEzCH2x8Mg2tkRQ1qLTsxRje9FyQWXxa9cGSe2ELnpRVNougk47VqA2GMAXYIbf s0ww== X-Gm-Message-State: AOAM533Za96mYdH0U+EO9bmeh45EXkdFT5v60hAne+WPjGXbf544uywu 8NaWl0MB2f08l3KHzPSeytCM/Db9ACY7Mdl5f8CvDCFSLyIOi6VOuvqZym09//BFZcm42tFtLSG ShuTxEa6i68M/DK4jtw8Npiaob3FrHZupoZ9z/49Xe3nUKQBFV0gVgDPMNceqfVjvLW0SnVGpbf qA2rgl9cP5JA2kJZqbFNpF2A== X-Google-Smtp-Source: ABdhPJwJqrLz4LvPdbpxTti+gZ2zpgNv7oGdv4vd7aYab8Kx1ulj4m3IkrTedE0A5L9UCyT5RbSlZA== X-Received: by 2002:a05:6808:1805:b0:323:a81:bdff with SMTP id bh5-20020a056808180500b003230a81bdffmr8671177oib.7.1650906954532; Mon, 25 Apr 2022 10:15:54 -0700 (PDT) Received: from localhost ([181.97.174.128]) by smtp.gmail.com with ESMTPSA id j9-20020a056808056900b0032252797ea4sm4007238oig.6.2022.04.25.10.15.49 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 25 Apr 2022 10:15:54 -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 v7 2/8] mm/mmzone: Tag pg_data_t with crypto capabilities Date: Mon, 25 Apr 2022 14:15:20 -0300 Message-Id: <20220425171526.44925-3-martin.fernandez@eclypsium.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220425171526.44925-1-martin.fernandez@eclypsium.com> References: <20220425171526.44925-1-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