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 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 4C14CC27C53 for ; Thu, 20 Jun 2024 02:30:56 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sK7ZM-0005me-B1; Wed, 19 Jun 2024 22:30:37 -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 1sK7ZK-0005kt-RL; Wed, 19 Jun 2024 22:30:34 -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 1sK7ZI-0003wz-PM; Wed, 19 Jun 2024 22:30:34 -0400 Received: from mail.andestech.com (ATCPCS31.andestech.com [10.0.1.89]) by Atcsqr.andestech.com with ESMTP id 45K2UBwp096336; Thu, 20 Jun 2024 10:30:11 +0800 (+08) (envelope-from ethan84@andestech.com) Received: from ethan84-VirtualBox (10.0.12.12) by ATCPCS31.andestech.com (10.0.1.89) with Microsoft SMTP Server id 14.3.498.0; Thu, 20 Jun 2024 10:30:07 +0800 Date: Thu, 20 Jun 2024 10:30:06 +0800 To: Stefan Weil CC: , , , , , , , , Subject: Re: [PATCH v7 1/2] hw/misc/riscv_iopmp: Add RISC-V IOPMP device Message-ID: References: <20240612031706.2927602-1-ethan84@andestech.com> <20240612031706.2927602-2-ethan84@andestech.com> <8def1779-6fc8-4e53-9542-20fe83651c0b@weilnetz.de> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <8def1779-6fc8-4e53-9542-20fe83651c0b@weilnetz.de> User-Agent: Mutt/2.1.4 (2021-12-11) X-Originating-IP: [10.0.12.12] X-DNSRBL: X-MAIL: Atcsqr.andestech.com 45K2UBwp096336 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, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no autolearn_force=no X-Spam_action: no action 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 From: Ethan Chen via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Mon, Jun 17, 2024 at 02:09:34PM +0200, Stefan Weil wrote: > [EXTERNAL MAIL] > > Am 12.06.24 um 05:17 schrieb Ethan Chen via: > > Support basic functions of IOPMP specification v0.9.1 rapid-k model. > > The specification url: > > https://github.com/riscv-non-isa/iopmp-spec/releases/tag/v0.9.1 > > > > IOPMP check memory access from device is valid or not. This implementation uses > > IOMMU to change address space that device access. There are three possible > > results of an access: valid, blocked, and stalled(stall is not supported in this > > patch). > > > > If an access is valid, target address space is downstream_as. > > If an access is blocked, it will go to blocked_io_as. The operation of > > blocked_io_as could be a bus error, or it can respond a success with fabricated > > data depending on IOPMP ERR_CFG register value. > > > > Signed-off-by: Ethan Chen > > --- > > hw/misc/Kconfig | 3 + > > hw/misc/meson.build | 1 + > > hw/misc/riscv_iopmp.c | 1002 +++++++++++++++++++++++++++++++++ > > hw/misc/trace-events | 4 + > > include/hw/misc/riscv_iopmp.h | 152 +++++ > > 5 files changed, 1162 insertions(+) > > create mode 100644 hw/misc/riscv_iopmp.c > > create mode 100644 include/hw/misc/riscv_iopmp.h > > Should both new files have SPDX license identifiers? > > Regards, > Stefan W. Thank you for the reminder, I will add them. Thanks, Ethan