From nobody Tue Nov 26 10:32:28 2024 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; dmarc=pass(p=none dis=none) header.from=nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1708654928; cv=none; d=zohomail.com; s=zohoarc; b=Wd08F2RZIjokcW1MTdiV5G/JqKCjqa2Ewp+Xvol8nWnqxwGjSXSWY1q6XecsPrG0v8nR788K08JV/YPHQXcnl1uzfknD9vaI/NSlQc130u20G09HHmQpgEkxk1XlxsDWw4CuyQdEqcXIHoJV2AwE45aw/IRFOMvo6QVh44KohPw= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1708654928; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Reply-To:Reply-To:References:Sender:Subject:Subject:To:To:Message-Id; bh=mXTn3gqJaaYmQhXtrxbv61HHPaaqSzKHJ6dbkgh/1PY=; b=hiwA+zCFyKKFpObW5Swzradli4gTpeTVs7201m+iDWEJ1f31puBCtEYDlDAWrH7tB1Ekn887MqAsIsQmcncW9LYCkPGY6MZu2FG0IHuXm1BlzqCJbCNFISJviNffEmaw0+8O2M/fwnoYf3fIdnbiZFyX/fSaQ/mmO4PmKvjgPoQ= ARC-Authentication-Results: i=1; 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; dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1708654928376908.3721575996606; Thu, 22 Feb 2024 18:22:08 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rdLCL-0001zb-2p; Thu, 22 Feb 2024 21:22:01 -0500 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 1rdLCJ-0001zQ-L4 for qemu-devel@nongnu.org; Thu, 22 Feb 2024 21:21:59 -0500 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 1rdLCE-0000IF-Eh for qemu-devel@nongnu.org; Thu, 22 Feb 2024 21:21:59 -0500 Received: from mail.andestech.com (ATCPCS16.andestech.com [10.0.1.222]) by Atcsqr.andestech.com with ESMTP id 41N2LbTO073212; Fri, 23 Feb 2024 10:21:37 +0800 (+08) (envelope-from alvinga@andestech.com) Received: from alvinga-VirtualBox.andestech.com (10.0.13.68) by ATCPCS16.andestech.com (10.0.1.222) with Microsoft SMTP Server id 14.3.498.0; Fri, 23 Feb 2024 10:21:33 +0800 To: , CC: , , , , , Alvin Chang Subject: [PATCH v2 2/4] target/riscv: Apply modularized matching conditions for breakpoint Date: Fri, 23 Feb 2024 10:21:17 +0800 Message-ID: <20240223022119.41255-3-alvinga@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240223022119.41255-1-alvinga@andestech.com> References: <20240223022119.41255-1-alvinga@andestech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.0.13.68] X-DNSRBL: X-SPAM-SOURCE-CHECK: pass X-MAIL: Atcsqr.andestech.com 41N2LbTO073212 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=60.248.80.70; envelope-from=alvinga@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: Alvin Chang From: Alvin Chang via Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1708654930660100003 Content-Type: text/plain; charset="utf-8" We have implemented trigger_common_match(), which checks if the enabled privilege levels of the trigger match CPU's current privilege level. Remove the related code in riscv_cpu_debug_check_breakpoint() and invoke trigger_common_match() to check the privilege levels of the type 2 and type 6 triggers for the breakpoints. This commit also changes the behavior of looping the triggers. In previous implementation, if we have a type 2 trigger and env->virt_enabled is true, we directly return false to stop the loop. Now we keep looping all the triggers until we find a matched trigger. Only the execution bit and the executed PC should be futher checked in riscv_cpu_debug_check_breakpoint(). Signed-off-by: Alvin Chang Reviewed-by: Alistair Francis --- target/riscv/debug.c | 26 ++++++-------------------- 1 file changed, 6 insertions(+), 20 deletions(-) diff --git a/target/riscv/debug.c b/target/riscv/debug.c index 3891236b82..b7b0fa8945 100644 --- a/target/riscv/debug.c +++ b/target/riscv/debug.c @@ -855,21 +855,17 @@ bool riscv_cpu_debug_check_breakpoint(CPUState *cs) for (i =3D 0; i < RV_MAX_TRIGGERS; i++) { trigger_type =3D get_trigger_type(env, i); =20 + if (!trigger_common_match(env, trigger_type, i)) { + continue; + } + switch (trigger_type) { case TRIGGER_TYPE_AD_MATCH: - /* type 2 trigger cannot be fired in VU/VS mode */ - if (env->virt_enabled) { - return false; - } - ctrl =3D env->tdata1[i]; pc =3D env->tdata2[i]; =20 if ((ctrl & TYPE2_EXEC) && (bp->pc =3D=3D pc)) { - /* check U/S/M bit against current privilege level */ - if ((ctrl >> 3) & BIT(env->priv)) { - return true; - } + return true; } break; case TRIGGER_TYPE_AD_MATCH6: @@ -877,17 +873,7 @@ bool riscv_cpu_debug_check_breakpoint(CPUState *cs) pc =3D env->tdata2[i]; =20 if ((ctrl & TYPE6_EXEC) && (bp->pc =3D=3D pc)) { - if (env->virt_enabled) { - /* check VU/VS bit against current privilege level= */ - if ((ctrl >> 23) & BIT(env->priv)) { - return true; - } - } else { - /* check U/S/M bit against current privilege level= */ - if ((ctrl >> 3) & BIT(env->priv)) { - return true; - } - } + return true; } break; default: --=20 2.34.1