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[2403:580b:97e8:0:82ce:f179:8a79:69f4]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-706b4a07326sm932431b3a.111.2024.06.27.03.02.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 27 Jun 2024 03:02:45 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1719482566; x=1720087366; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=R2ySpE5U7zE2XXo/BjdiRlPjhvKqenUQik4nMBEH7xQ=; b=fsFSMm6qA7MUGs3xDfmNOfyFSemvUHopQzGEwKrxx1YgiWaldbw0+6bH5QE2zQU9tA oDGw9BlgUk30n9p0hHa6mCknCLt6/C+efVtuWwBq57poOS9R2KL42ZDMZDANYsnTonsf YDJrMrna3JTKf+SP/VpEQ70EfcMkrYXs3Ra4k+jPjrgFQe4UUX8UAcrNLOC1cI1E73d0 P9w7284+gMsA4+JYIiK/7+wLIN81buptlRYUG8wq9U2mAu7jRL4bccrEr1qRjZDcQEv+ A3SEuB/tc8aRkUdKXRUTaUqUxg83IbMsrUVRCxmMKTvm6P2MNGU0usVxEMBCMpqJVvkV S1mA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1719482566; x=1720087366; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=R2ySpE5U7zE2XXo/BjdiRlPjhvKqenUQik4nMBEH7xQ=; b=sFyxnp6DYGvfib1kZhx35XyatX8g+4OoiudI9y1xFCyplMHx/L+49fFXkcYAUTfoBU C/JkrNKV/6p0f0mv3zYI2PL8YqFntb74DjMwAY7hMW65uwyeZi95Sn6pfPvd/uon+buQ ADoZuahBEPxk3ps43tZqHGLZLHADKkkFsD6islP0Uxk34YFh4x9lqtqUgrWYPHudmo6D isdPnPMDcLBNVvaa/euBCIzyWfR6tac9NNskW6OxH5Hn9+dKc15nTHLmSbTZM79DdIE+ edKs8VYYSItl8vPjyVNGqNaHVpDsB0YlBA5rgs2LD+daFn+X3Z/wJ1U7yBGUpcwd4mmZ qqhQ== X-Gm-Message-State: AOJu0Yy+aF44K8uhlFMRsea/PTN1qYTO9EItq3rbvgKT2Xxzq8SJAKRi whfoQLql7M/p0G1nT9erZtnaLICnVT0cUQ129aD7f7ZHOCYYMitwe6ChfwoA X-Google-Smtp-Source: AGHT+IF3B6v82GALcn8dTX5L8YxkKs51s5fCTOPBZvyWyQjDweO1JF0/t5JzVKSFu+AjrNvUBy6I4g== X-Received: by 2002:aa7:8a53:0:b0:706:29e6:2edf with SMTP id d2e1a72fcca58-70674548ef7mr11921175b3a.4.1719482565544; Thu, 27 Jun 2024 03:02:45 -0700 (PDT) From: Alistair Francis X-Google-Original-From: Alistair Francis To: qemu-devel@nongnu.org Cc: alistair23@gmail.com, Alvin Chang , Alistair Francis Subject: [PULL 31/32] target/riscv: Apply modularized matching conditions for watchpoint Date: Thu, 27 Jun 2024 20:00:52 +1000 Message-ID: <20240627100053.150937-32-alistair.francis@wdc.com> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240627100053.150937-1-alistair.francis@wdc.com> References: <20240627100053.150937-1-alistair.francis@wdc.com> 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=2607:f8b0:4864:20::435; envelope-from=alistair23@gmail.com; helo=mail-pf1-x435.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, 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-ZohoMail-DKIM: pass (identity @gmail.com) X-ZM-MESSAGEID: 1719482771922100003 Content-Type: text/plain; charset="utf-8" From: Alvin Chang 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 Message-ID: <20240626132247.2761286-3-alvinga@andestech.com> Signed-off-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 11125f333b..c290d6002e 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 2.45.2