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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id D75A2C433EF for ; Tue, 26 Apr 2022 06:17:01 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 6EAFB6B007B; Tue, 26 Apr 2022 02:17:01 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 6998F6B0078; Tue, 26 Apr 2022 02:17:01 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 564366B007B; Tue, 26 Apr 2022 02:17:01 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (relay.hostedemail.com [64.99.140.26]) by kanga.kvack.org (Postfix) with ESMTP id 470B26B0075 for ; Tue, 26 Apr 2022 02:17:01 -0400 (EDT) Received: from smtpin12.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay01.hostedemail.com (Postfix) with ESMTP id 22AFC608F0 for ; Tue, 26 Apr 2022 06:17:01 +0000 (UTC) X-FDA: 79398022242.12.F5F4C7F Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by imf05.hostedemail.com (Postfix) with ESMTP id 8F5F5100052 for ; Tue, 26 Apr 2022 06:16:54 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 067896132D; Tue, 26 Apr 2022 06:17:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D7B91C385A0; Tue, 26 Apr 2022 06:16:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1650953819; bh=ANH3UTZLZ+hrLRQUGigFumQFldVbaQC5gsVuGlcgcGc=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=lWgfMDM+ZJ60+fK3LlOiWlrEb0jOc3QwdWyzxmKvqG2Qstz4rqSTKh/b5UVRorkvr rdo5xaJI7jflFyoYq1LYu1ds9aY9rpiEr6XtxisLN+Tbeq4A4ReBcJlixUNFKOtCVA Cg4bgDpHANgPWx9q9PECu8I0tSOwwbtuQ0KK7AuPKlmCEFmX1VAi8KPLs4W1t4DNtO a19ZR22jmqTtZ+a1FPq499wlc1vDaUqawRFizxC0ImwB3Aerlr5Jg6b2GstX66J9JL UOynuNg+6YXYNG/XGKs1rl6UpJs7w1AGIWxr2+WndT28AZ91UHh0nzhonGdw3a1jN0 2SIyHBB1zSLZQ== Date: Tue, 26 Apr 2022 09:16:48 +0300 From: Mike Rapoport To: Martin Fernandez Cc: linux-kernel@vger.kernel.org, linux-efi@vger.kernel.org, platform-driver-x86@vger.kernel.org, linux-mm@kvack.org, 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, akpm@linux-foundation.org, daniel.gutson@eclypsium.com, hughsient@gmail.com, alex.bazhaniuk@eclypsium.com, alison.schofield@intel.com, keescook@chromium.org Subject: Re: [PATCH v7 2/8] mm/mmzone: Tag pg_data_t with crypto capabilities Message-ID: References: <20220425171526.44925-1-martin.fernandez@eclypsium.com> <20220425171526.44925-3-martin.fernandez@eclypsium.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220425171526.44925-3-martin.fernandez@eclypsium.com> X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 8F5F5100052 Authentication-Results: imf05.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=lWgfMDM+; spf=pass (imf05.hostedemail.com: domain of rppt@kernel.org designates 139.178.84.217 as permitted sender) smtp.mailfrom=rppt@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Rspam-User: X-Stat-Signature: rxh1xjmsu4mst4xdmi9bp3kt5tnomc4m X-HE-Tag: 1650953814-476292 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, Apr 25, 2022 at 02:15:20PM -0300, Martin Fernandez wrote: > 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 Reviewed-by: Mike Rapoport > --- > 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 > > -- Sincerely yours, Mike.