From patchwork Wed Oct 25 05:14:25 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ethan Chen X-Patchwork-Id: 13435747 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.gnu.org (lists.gnu.org [209.51.188.17]) (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 B4FE1C0032E for ; Wed, 25 Oct 2023 09:10:53 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qvZt6-0005Ft-2e; Wed, 25 Oct 2023 05:09:16 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qvWRn-0004RU-Vx for qemu-devel@nongnu.org; Wed, 25 Oct 2023 01:28:52 -0400 Received: from 60-248-80-70.hinet-ip.hinet.net ([60.248.80.70] helo=Atcsqr.andestech.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qvWRm-0001BW-3R for qemu-devel@nongnu.org; Wed, 25 Oct 2023 01:28:51 -0400 Received: from Atcsqr.andestech.com (localhost [127.0.0.2] (may be forged)) by Atcsqr.andestech.com with ESMTP id 39P5FFKt024539 for ; Wed, 25 Oct 2023 13:15:15 +0800 (+08) (envelope-from ethan84@andestech.com) Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 39P5F3F2024461; Wed, 25 Oct 2023 13:15:03 +0800 (+08) (envelope-from ethan84@andestech.com) Received: from ethan84-VirtualBox.andestech.com (10.0.12.51) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Wed, 25 Oct 2023 13:14:58 +0800 To: CC: Ethan Chen , Paolo Bonzini , Peter Xu , David Hildenbrand , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Subject: [PATCH 1/6] exec/memory: Introduce the translate_size function within the IOMMU class Date: Wed, 25 Oct 2023 13:14:25 +0800 Message-ID: <20231025051430.493079-2-ethan84@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231025051430.493079-1-ethan84@andestech.com> References: <20231025051430.493079-1-ethan84@andestech.com> MIME-Version: 1.0 X-Originating-IP: [10.0.12.51] X-DNSRBL: X-MAIL: Atcsqr.andestech.com 39P5FFKt024539 Received-SPF: pass client-ip=60.248.80.70; envelope-from=ethan84@andestech.com; helo=Atcsqr.andestech.com X-Spam_score_int: -8 X-Spam_score: -0.9 X-Spam_bar: / X-Spam_report: (-0.9 / 5.0 requ) BAYES_00=-1.9, RDNS_DYNAMIC=0.982, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, TVD_RCVD_IP=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-Mailman-Approved-At: Wed, 25 Oct 2023 05:09:13 -0400 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Ethan Chen X-Patchwork-Original-From: Ethan Chen via From: Ethan Chen Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org IOMMU have size information during translation. Signed-off-by: Ethan Chen --- include/exec/memory.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/include/exec/memory.h b/include/exec/memory.h index 9087d02769..5520b7c8c0 100644 --- a/include/exec/memory.h +++ b/include/exec/memory.h @@ -396,6 +396,25 @@ struct IOMMUMemoryRegionClass { */ IOMMUTLBEntry (*translate)(IOMMUMemoryRegion *iommu, hwaddr addr, IOMMUAccessFlags flag, int iommu_idx); + /** + * @translate_size: + * + * Return a TLB entry that contains a given address and size. + * + * @iommu: the IOMMUMemoryRegion + * + * @hwaddr: address to be translated within the memory region + * + * @size: size to indicate the scope of the entire transaction + * + * @flag: requested access permission + * + * @iommu_idx: IOMMU index for the translation + */ + IOMMUTLBEntry (*translate_size)(IOMMUMemoryRegion *iommu, hwaddr addr, + hwaddr size, IOMMUAccessFlags flag, + int iommu_idx); + /** * @get_min_page_size: *