From nobody Mon Feb 9 18:18:53 2026 Delivered-To: importer@patchew.org Received-SPF: pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) client-ip=192.237.175.120; envelope-from=xen-devel-bounces@lists.xenproject.org; helo=lists.xenproject.org; Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org ARC-Seal: i=1; a=rsa-sha256; t=1605812909; cv=none; d=zohomail.com; s=zohoarc; b=MCyJLcJI1uZsuCWEH9wC6vqEzGA+Vdoc0KQtdo724wJaiul37I8vjPPLt+xVvaw7uI8gm2gjx6POKOS2/m2p94EF6YiQe98r7t1nIRWB31sM/Vebusj9dcoMXjw0JLCkDKO9fgxU+lJTM06Y6YytEil70ukxQiTwsIy5W85wd1s= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1605812909; h=Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Help:List-Unsubscribe:Message-ID:References:Sender:Subject:To; bh=OFTW7+XoUzoZJqOmYFJ6tvN5l1t/e5UfO6wPacf/RUI=; b=fXQhLefubXz2vzdgqy+aeLQQPn0dDx9oq4PJTbGLYBHWIxAgAb+AM8bJ9qpqJcqzacj0ZQ9kaPKvUOAUa7GXaPoIMUZ5+vExbe57fidUGvhh7hMpQXGq2joUP7RGdDTjKt/AbDw5/kUlsCSY534BpzCFeGW5xsK58Qoz8FH+jZs= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of lists.xenproject.org designates 192.237.175.120 as permitted sender) smtp.mailfrom=xen-devel-bounces@lists.xenproject.org Return-Path: Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) by mx.zohomail.com with SMTPS id 1605812909145535.0791537313439; Thu, 19 Nov 2020 11:08:29 -0800 (PST) Received: from list by lists.xenproject.org with outflank-mailman.31366.61741 (Exim 4.92) (envelope-from ) id 1kfpHm-0005e6-4M; Thu, 19 Nov 2020 19:08:02 +0000 Received: by outflank-mailman (output) from mailman id 31366.61741; Thu, 19 Nov 2020 19:08:02 +0000 Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHl-0005dw-Va; Thu, 19 Nov 2020 19:08:01 +0000 Received: by outflank-mailman (input) for mailman id 31366; Thu, 19 Nov 2020 19:08:00 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHk-0005bQ-KF for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 19:08:00 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHk-0003TA-8e; Thu, 19 Nov 2020 19:08:00 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kfpHk-0000TE-1g; Thu, 19 Nov 2020 19:08:00 +0000 Received: from mail.xenproject.org ([104.130.215.37]) by lists.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHk-0005bQ-KF for xen-devel@lists.xenproject.org; Thu, 19 Nov 2020 19:08:00 +0000 Received: from xenbits.xenproject.org ([104.239.192.120]) by mail.xenproject.org with esmtp (Exim 4.92) (envelope-from ) id 1kfpHk-0003TA-8e; Thu, 19 Nov 2020 19:08:00 +0000 Received: from 54-240-197-235.amazon.com ([54.240.197.235] helo=ufe34d9ed68d054.ant.amazon.com) by xenbits.xenproject.org with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1kfpHk-0000TE-1g; Thu, 19 Nov 2020 19:08:00 +0000 X-Outflank-Mailman: Message body and most headers restored to incoming version 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" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=xen.org; s=20200302mail; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From; bh=OFTW7+XoUzoZJqOmYFJ6tvN5l1t/e5UfO6wPacf/RUI=; b=0DpbZfK/HWJzMuVRx7orNGkBS 57IMf9WdvCWoIx4VzwZG/bZ5zb5qDQcM9bGlX879p6AbGFSr4LwnZmTi3N/dMVnEjY4jCb2snnRNi oMoZTEdFPbvcYBmp5RP4oj+GnnwCVDZrA/coXE5hrf28LGh+cd99Okc1sMszTev8e7HB4=; From: Julien Grall To: xen-devel@lists.xenproject.org Cc: bertrand.marquis@arm.com, Julien Grall , Stefano Stabellini , Julien Grall , Volodymyr Babchuk , Julien Grall Subject: [PATCH RFC 5/6] xen/arm: mm: Don't open-code Xen PT update in remove_early_mappings Date: Thu, 19 Nov 2020 19:07:50 +0000 Message-Id: <20201119190751.22345-6-julien@xen.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20201119190751.22345-1-julien@xen.org> References: <20201119190751.22345-1-julien@xen.org> X-ZohoMail-DKIM: pass (identity @xen.org) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" From: Julien Grall Now that xen_pt_update_entry() is able to deal with different mapping size, we can replace the open-coding of the page-tables update by a call to modify_xen_mappings(). As the function is not meant to fail, a BUG_ON is added to check the return. Signed-off-by: Julien Grall Signed-off-by: Julien Grall Acked-by: Stefano Stabellini --- xen/arch/arm/mm.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/xen/arch/arm/mm.c b/xen/arch/arm/mm.c index af0f12b6e6d3..aee6d410ac4f 100644 --- a/xen/arch/arm/mm.c +++ b/xen/arch/arm/mm.c @@ -598,11 +598,11 @@ void * __init early_fdt_map(paddr_t fdt_paddr) =20 void __init remove_early_mappings(void) { - lpae_t pte =3D {0}; - write_pte(xen_second + second_table_offset(BOOT_FDT_VIRT_START), pte); - write_pte(xen_second + second_table_offset(BOOT_FDT_VIRT_START + SZ_2M= ), - pte); - flush_xen_tlb_range_va(BOOT_FDT_VIRT_START, BOOT_FDT_SLOT_SIZE); + int rc; + + rc =3D modify_xen_mappings(BOOT_FDT_VIRT_START, BOOT_FDT_VIRT_END, + _PAGE_BLOCK); + BUG_ON(rc); } =20 /* --=20 2.17.1