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[174.21.81.121]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-20c13931055sm16493405ad.139.2024.10.05.13.06.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 05 Oct 2024 13:06:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1728158770; x=1728763570; 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=/wa2JC5GTiuZOa9FUt+c/E5R/4D7wBSs90VoPwelenc=; b=Oph6G3SGoaxulsvPO1cbl6De/4CT6GGM7Sy8hNzKtC90KA43cXIGH5Sd6nL042+ksJ kWkRdklwrKgYVUGRmqJbuBwrmt97y6VFCOqWUJppjx8tPN2XSH3wv/p/WA0DNQHdb9+a fWD0x2q5cGQQ24WrYqNzPBfp8qq3rZzZaXKBtB7UC8DA4Qw7ad4+v3d+LR2DG/aaruhU r9iJiM/twGXHSlVCcdl8zk1ulaRSh11ttMc7jntQUlBpG8zk6dsxyYqgJoL6tbNIBlNX TNDvwO3VoIzAm0GMyAlFgHwlZZLz565FOjMW/ytJkBByI6qeGxXKPBAU7JIwyJncUAXl l9yA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728158770; x=1728763570; 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=/wa2JC5GTiuZOa9FUt+c/E5R/4D7wBSs90VoPwelenc=; b=dRNfKjHxOKAyvD/G8ivCT+xUClwK4bu7mtl6lYB4vKkOgCgjpFwq76n8eZy4ShVnbS AUrMCmLNloxXbP5zwEgoO6DcTfIk5ku6xm+BjMyTWK2CBZM2paYG5qljWRrRcg322zHj nnrazNxgbBWb9s87KRHZAJWqNJwlKJAGDodFS2lRX+0FaLrTWQ9x5Aywy++AeKNPKGUY wVdLkam2iwlzmoG66JVj8OYaolJp3FP8laz7ucI+dPPx55TW7c9++L2TvBeUw7SgaeJZ cGZXIe2DGaZ160ZMz+7QKHuLkdLJrQb8REFKnBSNEDIL2/VL/JyG+KkRa2MV8W67clSC aK+A== X-Gm-Message-State: AOJu0YwL9Eks/ZUgdO5PFDOVBCmP5sDE1mH94YuoEbAq9/5Y24IKBRnK lD0WOMOJfXv6+MK4qmtlAXpGGfzeoHRhGhpC6m0kRyjNLxtkbSlMW4f9zS1MCW7VqYqgwy2JVgL R X-Google-Smtp-Source: AGHT+IEu/yRGIXzgnnxtsNkCW1Gem8iXzS/ffba0hjtpfN6ZQ1VIoxbuDWZWql5a5WIxSKhWPrRs6g== X-Received: by 2002:a17:90b:3709:b0:2e0:7b03:1908 with SMTP id 98e67ed59e1d1-2e1b38c7582mr16486887a91.10.1728158770066; Sat, 05 Oct 2024 13:06:10 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Cc: deller@kernel.org, peter.maydell@linaro.org, alex.bennee@linaro.org, linux-parisc@vger.kernel.org, qemu-arm@nongnu.org Subject: [PATCH v2 09/21] target/hppa: Perform access rights before protection id check Date: Sat, 5 Oct 2024 13:05:48 -0700 Message-ID: <20241005200600.493604-10-richard.henderson@linaro.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241005200600.493604-1-richard.henderson@linaro.org> References: <20241005200600.493604-1-richard.henderson@linaro.org> 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::52e; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x52e.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 @linaro.org) X-ZM-MESSAGEID: 1728158919705116600 Content-Type: text/plain; charset="utf-8" In Chapter 5, Interruptions, the group 3 exceptions lists "Data memory access rights trap" in priority order ahead of "Data memory protection ID trap". Swap these checks in hppa_get_physical_address. Signed-off-by: Richard Henderson Reviewed-by: Helge Deller --- target/hppa/mem_helper.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/target/hppa/mem_helper.c b/target/hppa/mem_helper.c index a386c80fa4..f027c494e2 100644 --- a/target/hppa/mem_helper.c +++ b/target/hppa/mem_helper.c @@ -267,6 +267,12 @@ int hppa_get_physical_address(CPUHPPAState *env, vaddr= addr, int mmu_idx, goto egress; } =20 + if (unlikely(!(prot & type))) { + /* Not allowed -- Inst/Data Memory Access Rights Fault. */ + ret =3D (type & PAGE_EXEC) ? EXCP_IMP : EXCP_DMAR; + goto egress; + } + /* access_id =3D=3D 0 means public page and no check is performed */ if (ent->access_id && MMU_IDX_TO_P(mmu_idx)) { int access_prot =3D (hppa_is_pa20(env) @@ -281,12 +287,6 @@ int hppa_get_physical_address(CPUHPPAState *env, vaddr= addr, int mmu_idx, prot &=3D access_prot; } =20 - if (unlikely(!(prot & type))) { - /* Not allowed -- Inst/Data Memory Access Rights Fault. */ - ret =3D (type & PAGE_EXEC) ? EXCP_IMP : EXCP_DMAR; - goto egress; - } - /* * In priority order, check for conditions which raise faults. * Remove PROT bits that cover the condition we want to check, --=20 2.43.0