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[81.2.115.148]) by smtp.gmail.com with ESMTPSA id m3sm2154818wrn.96.2020.05.11.06.34.19 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 11 May 2020 06:34:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references:mime-version :content-transfer-encoding; bh=fXod/8ZHLxKpq+52Y123DpffxkGp4HAChW55s9+pKU8=; b=OTdle7p24DW+Fk5tHYE5R5vWtn6I0F7FIzwf6+RZb3jesPa4qX/fBO0UD9X4i0Hz+Y solb6dqlJFbWcb8TF4t4hG8cS/Z8ZrWnbfhKd0enbc+mg7yk9xXGZmbFLcrujYyQoC80 xRjA7NrBM+ZwUMvHmtiZjvyf7zSAQnn5cEeAqzJeXZ2gDk9lJ8s7xOkrZ79BCdksQxxy SyR0eNeoffoEdiskNV3XXDY3To92L1yt8XEghdsiF2SXlIlPk/e4KCxV5iyidGrU+ojY o6gbtnwzGgNxcUNRV9QaYK3xUEHzN0RnHLNEdTSPWy9PS6kDvqoRFZhwpr/FB+Bdku5Q 88hw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fXod/8ZHLxKpq+52Y123DpffxkGp4HAChW55s9+pKU8=; b=VKLMhudsPhy6gpq+m73QicTWTUT/9S8rK3AfGNA+euV3eDH57fEvmYtwJMSGIPG21J BhI8fLQ21UpWwSlGVDFvU8NMepD03rfi/ZKKTcDs8Pp/dS9XXBcGwcNM1HwBZZZXbTHc iDY0dWJThtnq0gM2LfyHG5Bn3KOCAPwrkaE+/HCjRdUfrLSlS9gdsdiSPZBrKqMNMOEW 1j+SaGGrV00VcbMORjJ6WyM73GA1jN2rLJ4FFD3uPFIeDt8Yzs0KXz9dWitfGmw3epQV jayaWXVA/xG+njeBQ2LQuTLtGIbNpTbBAqugr0Aik0pdYPBO665ZCv5P5TgpL27lxD7c nnfQ== X-Gm-Message-State: AGi0PuYxNjvtt7JKPl9hCOSUOKsr5XL/uH/bd3NlJeRGmIIpGuWAYCLO gMCg1yFqueenR+1CgMX9Od9dkL+D48nheg== X-Google-Smtp-Source: APiQypIFMyuWZxCC4mQuxEl05Zv3r+ByRyFwJQskfUtqSCJBjyFk7HGZA1PrN97qF3xq9q3FMykIIQ== X-Received: by 2002:a5d:69c3:: with SMTP id s3mr18592871wrw.305.1589204059836; Mon, 11 May 2020 06:34:19 -0700 (PDT) From: Peter Maydell To: qemu-devel@nongnu.org Subject: [PULL 11/34] accel/tcg: Adjust probe_access call to page_check_range Date: Mon, 11 May 2020 14:33:42 +0100 Message-Id: <20200511133405.5275-12-peter.maydell@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200511133405.5275-1-peter.maydell@linaro.org> References: <20200511133405.5275-1-peter.maydell@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=2a00:1450:4864:20::42b; envelope-from=peter.maydell@linaro.org; helo=mail-wr1-x42b.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. 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_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 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" X-ZohoMail-DKIM: pass (identity @linaro.org) Content-Type: text/plain; charset="utf-8" From: Richard Henderson We have validated that addr+size does not cross a page boundary. Therefore we need to validate exactly one page. We can achieve that passing any value 1 <=3D x <=3D size to page_check_range. Passing 1 will simplify the next patch. Signed-off-by: Richard Henderson Message-id: 20200508154359.7494-5-richard.henderson@linaro.org Reviewed-by: Peter Maydell Signed-off-by: Peter Maydell --- accel/tcg/user-exec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c index 4be78eb9b38..03538e2a389 100644 --- a/accel/tcg/user-exec.c +++ b/accel/tcg/user-exec.c @@ -211,7 +211,7 @@ void *probe_access(CPUArchState *env, target_ulong addr= , int size, g_assert_not_reached(); } =20 - if (!guest_addr_valid(addr) || page_check_range(addr, size, flags) < 0= ) { + if (!guest_addr_valid(addr) || page_check_range(addr, 1, flags) < 0) { CPUState *cpu =3D env_cpu(env); CPUClass *cc =3D CPU_GET_CLASS(cpu); cc->tlb_fill(cpu, addr, size, access_type, MMU_USER_IDX, false, --=20 2.20.1