From patchwork Fri Mar 4 17:46:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marco Solieri X-Patchwork-Id: 12769743 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 lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5C381C433F5 for ; Fri, 4 Mar 2022 18:17:15 +0000 (UTC) Received: from list by lists.xenproject.org with outflank-mailman.284420.483747 (Exim 4.92) (envelope-from ) id 1nQCUB-00040m-7I; Fri, 04 Mar 2022 18:17:03 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version Received: by outflank-mailman (output) from mailman id 284420.483747; Fri, 04 Mar 2022 18:17:03 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nQCUA-0003t6-CA; Fri, 04 Mar 2022 18:17:02 +0000 Received: by outflank-mailman (input) for mailman id 284420; Fri, 04 Mar 2022 17:48:03 +0000 Received: from se1-gles-flk1-in.inumbo.com ([94.247.172.50] helo=se1-gles-flk1.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1nQC27-0005R5-LE for xen-devel@lists.xenproject.org; Fri, 04 Mar 2022 17:48:03 +0000 Received: from radon.xt3.it (radon.xt3.it [2a01:4f8:190:4055::2]) by se1-gles-flk1.inumbo.com (Halon) with ESMTPS id 3aff2d0f-9be3-11ec-8539-5f4723681683; Fri, 04 Mar 2022 18:47:59 +0100 (CET) Received: from nb2assolieri.mat.unimo.it ([155.185.4.56] helo=localhost) by radon.xt3.it with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1nQC22-0008Qf-R4; Fri, 04 Mar 2022 18:47:58 +0100 X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 3aff2d0f-9be3-11ec-8539-5f4723681683 From: Marco Solieri To: xen-devel@lists.xenproject.org Cc: Marco Solieri , Andrew Cooper , George Dunlap , Jan Beulich , Julien Grall , Stefano Stabellini , Wei Liu , Marco Solieri , Andrea Bastoni , Luca Miccio Subject: [PATCH 08/36] xen/arm: add colored flag to page struct Date: Fri, 4 Mar 2022 18:46:33 +0100 Message-Id: <20220304174701.1453977-9-marco.solieri@minervasys.tech> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220304174701.1453977-1-marco.solieri@minervasys.tech> References: <20220304174701.1453977-1-marco.solieri@minervasys.tech> MIME-Version: 1.0 From: Luca Miccio A new allocator enforcing a cache-coloring configuration is going to be introduced. We thus need to distinguish the memory pages assigned to, and managed by, such colored allocator from the ordinary buddy allocator's ones. Add a color flag to the page structure. Signed-off-by: Luca Miccio Signed-off-by: Marco Solieri --- xen/arch/arm/include/asm/mm.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/xen/arch/arm/include/asm/mm.h b/xen/arch/arm/include/asm/mm.h index 487be7cf59..9ac1767595 100644 --- a/xen/arch/arm/include/asm/mm.h +++ b/xen/arch/arm/include/asm/mm.h @@ -88,6 +88,10 @@ struct page_info */ u32 tlbflush_timestamp; }; + + /* Is page managed by the cache-colored allocator? */ + bool colored; + u64 pad; };