From patchwork Wed Mar 12 09:37:28 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ethan Chen X-Patchwork-Id: 14013217 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 3BFF8C28B28 for ; Wed, 12 Mar 2025 09:40:00 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tsIYk-0003Zf-CC; Wed, 12 Mar 2025 05:39:30 -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 1tsIYc-0003Yp-VG; Wed, 12 Mar 2025 05:39:22 -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 1tsIYZ-0000mk-WB; Wed, 12 Mar 2025 05:39:22 -0400 Received: from mail.andestech.com (ATCPCS31.andestech.com [10.0.1.89]) by Atcsqr.andestech.com with ESMTPS id 52C9bBkl069432 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 12 Mar 2025 17:37:12 +0800 (+08) (envelope-from ethan84@andestech.com) Received: from atcpcw16.andestech.com (10.0.1.106) by ATCPCS31.andestech.com (10.0.1.89) with Microsoft SMTP Server (TLS) id 14.3.498.0; Wed, 12 Mar 2025 17:38:43 +0800 To: CC: , , , , , , , , , , , Ethan Chen Subject: [PATCH v11 4/8] target/riscv: Add support for IOPMP Date: Wed, 12 Mar 2025 17:37:28 +0800 Message-ID: <20250312093735.1517740-5-ethan84@andestech.com> X-Mailer: git-send-email 2.42.0.345.gaab89be2eb.dirty In-Reply-To: <20250312093735.1517740-1-ethan84@andestech.com> References: <20250312093735.1517740-1-ethan84@andestech.com> MIME-Version: 1.0 X-Originating-IP: [10.0.1.106] X-DKIM-Results: atcpcs31.andestech.com; dkim=none; X-DNSRBL: X-MAIL: Atcsqr.andestech.com 52C9bBkl069432 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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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-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 Signed-off-by: Ethan Chen Reviewed-by: Alistair Francis --- target/riscv/cpu.c | 3 +++ target/riscv/cpu_cfg.h | 2 ++ target/riscv/cpu_helper.c | 18 +++++++++++++++--- 3 files changed, 20 insertions(+), 3 deletions(-) diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c index 09ded6829a..2d7ff3f37e 100644 --- a/target/riscv/cpu.c +++ b/target/riscv/cpu.c @@ -2968,6 +2968,9 @@ static const Property riscv_cpu_properties[] = { * it with -x and default to 'false'. */ DEFINE_PROP_BOOL("x-misa-w", RISCVCPU, cfg.misa_w, false), + + DEFINE_PROP_BOOL("iopmp", RISCVCPU, cfg.iopmp, false), + DEFINE_PROP_UINT32("iopmp_rrid", RISCVCPU, cfg.iopmp_rrid, 0), }; #if defined(TARGET_RISCV64) diff --git a/target/riscv/cpu_cfg.h b/target/riscv/cpu_cfg.h index 8a843482cc..8dcf38eb0f 100644 --- a/target/riscv/cpu_cfg.h +++ b/target/riscv/cpu_cfg.h @@ -193,6 +193,8 @@ struct RISCVCPUConfig { bool pmp; bool debug; bool misa_w; + bool iopmp; + uint32_t iopmp_rrid; bool short_isa_string; diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c index 6c4391d96b..a1270f752c 100644 --- a/target/riscv/cpu_helper.c +++ b/target/riscv/cpu_helper.c @@ -1966,9 +1966,21 @@ bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size, } if (ret == TRANSLATE_SUCCESS) { - tlb_set_page(cs, address & ~(tlb_size - 1), pa & ~(tlb_size - 1), - prot, mmu_idx, tlb_size); - return true; + if (cpu->cfg.iopmp) { + /* + * Do not align address on early stage because IOPMP needs origin + * address for permission check. + */ + tlb_set_page_with_attrs(cs, address, pa, + (MemTxAttrs) + { + .requester_id = cpu->cfg.iopmp_rrid, + }, + prot, mmu_idx, tlb_size); + } else { + tlb_set_page(cs, address & ~(tlb_size - 1), pa & ~(tlb_size - 1), + prot, mmu_idx, tlb_size); + } } else if (probe) { return false; } else {