From nobody Tue Feb 10 13:55:19 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1756307814420891.8484081426084; Wed, 27 Aug 2025 08:16:54 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1urHhK-0003Bf-Mn; Wed, 27 Aug 2025 11:04:26 -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 1urHhF-00033N-V2; Wed, 27 Aug 2025 11:04:22 -0400 Received: from isrv.corpit.ru ([212.248.84.144]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1urHhD-0004t7-DI; Wed, 27 Aug 2025 11:04:21 -0400 Received: from tsrv.corpit.ru (tsrv.tls.msk.ru [192.168.177.2]) by isrv.corpit.ru (Postfix) with ESMTP id 5D39214C537; Wed, 27 Aug 2025 18:02:57 +0300 (MSK) Received: from think4mjt.tls.msk.ru (mjtthink.wg.tls.msk.ru [192.168.177.146]) by tsrv.corpit.ru (Postfix) with ESMTP id 49B2926983F; Wed, 27 Aug 2025 18:03:24 +0300 (MSK) From: Michael Tokarev To: qemu-devel@nongnu.org Cc: qemu-stable@nongnu.org, Yang Jialong , Daniel Henrique Barboza , Alistair Francis , Michael Tokarev Subject: [Stable-10.0.4 15/59] intc/riscv_aplic: Fix target register read when source is inactive Date: Wed, 27 Aug 2025 18:02:20 +0300 Message-ID: <20250827150323.2694101-15-mjt@tls.msk.ru> X-Mailer: git-send-email 2.47.2 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=212.248.84.144; envelope-from=mjt@tls.msk.ru; helo=isrv.corpit.ru X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1756307815433124100 Content-Type: text/plain; charset="utf-8" From: Yang Jialong The RISC-V Advanced interrupt Architecture: 4.5.16. Interrupt targets: If interrupt source i is inactive in this domain, register target[i] is read-only zero. Signed-off-by: Yang Jialong Reviewed-by: Daniel Henrique Barboza Message-ID: <20250728055114.252024-1-z_bajeer@yeah.net> Signed-off-by: Alistair Francis (cherry picked from commit b6f1244678bebaf7e2c775cfc66d452f95678ebf) Signed-off-by: Michael Tokarev diff --git a/hw/intc/riscv_aplic.c b/hw/intc/riscv_aplic.c index 5964cde7e0..cab8f0cd4d 100644 --- a/hw/intc/riscv_aplic.c +++ b/hw/intc/riscv_aplic.c @@ -628,7 +628,7 @@ static void riscv_aplic_request(void *opaque, int irq, = int level) =20 static uint64_t riscv_aplic_read(void *opaque, hwaddr addr, unsigned size) { - uint32_t irq, word, idc; + uint32_t irq, word, idc, sm; RISCVAPLICState *aplic =3D opaque; =20 /* Reads must be 4 byte words */ @@ -696,6 +696,10 @@ static uint64_t riscv_aplic_read(void *opaque, hwaddr = addr, unsigned size) } else if ((APLIC_TARGET_BASE <=3D addr) && (addr < (APLIC_TARGET_BASE + (aplic->num_irqs - 1) * 4))) { irq =3D ((addr - APLIC_TARGET_BASE) >> 2) + 1; + sm =3D aplic->sourcecfg[irq] & APLIC_SOURCECFG_SM_MASK; + if (sm =3D=3D APLIC_SOURCECFG_SM_INACTIVE) { + return 0; + } return aplic->target[irq]; } else if (!aplic->msimode && (APLIC_IDC_BASE <=3D addr) && (addr < (APLIC_IDC_BASE + aplic->num_harts * APLIC_IDC_SIZE)))= { --=20 2.47.2