From nobody Thu Nov 14 17:56:29 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=1719458213; cv=none; d=zohomail.com; s=zohoarc; b=IjOjxa0jH0W2r/diB5RHM2jS6OGH31OGtvtXToP/QIdyuKWb7FOkJiXhwwULcXVlw5z1e/b8nQBu/PADLvCWH8zG5N8If52cggGMjwyXBrptUnclNu+2xkvqJOKBBycqnYomuDRIMDB6B+918OskY4Eq/k5ludKzwHzHP9EKa0A= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1719458213; 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=Gn+FD3+kPBu1O8Mh1cTz7t7qlDXmMsKzBwT4rHMCbrM=; b=SUfLrrB5d3i2WjVA4xgwWL62sdjZmixqJQJ/r2VQlSx4axyK7l4OqibHZJBq+jw6E2xsJUFY13ly3d3YlfL6VtpyEkuc3+JCAA3YoQDC2zj1x5Mt6UMBViRYMEObDIAqLGOiJJZ/5aT0x9jSCEqy2jqn1O3t+9gMt0FEf30N3/0= 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 1719458213885983.2371076374245; Wed, 26 Jun 2024 20:16:53 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sMfci-0003iv-CS; Wed, 26 Jun 2024 23:16:36 -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 1sMfch-0003bA-1q for qemu-devel@nongnu.org; Wed, 26 Jun 2024 23:16:35 -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 1sMfcf-00020v-1J for qemu-devel@nongnu.org; Wed, 26 Jun 2024 23:16:34 -0400 Received: from mail.andestech.com (ATCPCS34.andestech.com [10.0.1.134]) by Atcsqr.andestech.com with ESMTP id 45R3G8LY097223; Thu, 27 Jun 2024 11:16:08 +0800 (+08) (envelope-from alvinga@andestech.com) Received: from atctrx.andestech.com (10.0.15.190) by ATCPCS34.andestech.com (10.0.1.134) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.39; Thu, 27 Jun 2024 11:16:08 +0800 To: , CC: , , , , , Alvin Chang Subject: [PATCH v6 2/3] target/riscv: Apply modularized matching conditions for watchpoint Date: Thu, 27 Jun 2024 11:14:32 +0800 Message-ID: <20240627031433.2216509-3-alvinga@andestech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240627031433.2216509-1-alvinga@andestech.com> References: <20240627031433.2216509-1-alvinga@andestech.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.0.15.190] X-ClientProxiedBy: ATCPCS33.andestech.com (10.0.1.100) To ATCPCS34.andestech.com (10.0.1.134) X-DNSRBL: X-SPAM-SOURCE-CHECK: pass X-MAIL: Atcsqr.andestech.com 45R3G8LY097223 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 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: 1719458215507100003 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_watchpoint() and invoke trigger_common_match() to check the privilege levels of the type 2 and type 6 triggers for the watchpoints. 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 load/store bits and loaded/stored address should be further checked in riscv_cpu_debug_check_watchpoint(). Signed-off-by: Alvin Chang Acked-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 11125f33..c290d600 100644 --- a/target/riscv/debug.c +++ b/target/riscv/debug.c @@ -901,13 +901,12 @@ bool riscv_cpu_debug_check_watchpoint(CPUState *cs, C= PUWatchpoint *wp) 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]; addr =3D env->tdata2[i]; flags =3D 0; @@ -920,10 +919,7 @@ bool riscv_cpu_debug_check_watchpoint(CPUState *cs, CP= UWatchpoint *wp) } =20 if ((wp->flags & flags) && (wp->vaddr =3D=3D addr)) { - /* 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: @@ -939,17 +935,7 @@ bool riscv_cpu_debug_check_watchpoint(CPUState *cs, CP= UWatchpoint *wp) } =20 if ((wp->flags & flags) && (wp->vaddr =3D=3D addr)) { - 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