From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 11E00C433ED for ; Tue, 6 Apr 2021 17:43:58 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id A6918613C6 for ; Tue, 6 Apr 2021 17:43:57 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A6918613C6 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linaro.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54188 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lTpk4-0005sF-Qs for qemu-devel@archiver.kernel.org; Tue, 06 Apr 2021 13:43:56 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:45770) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lTpgv-0001fe-H7 for qemu-devel@nongnu.org; Tue, 06 Apr 2021 13:40:41 -0400 Received: from mail-pg1-x534.google.com ([2607:f8b0:4864:20::534]:40958) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lTpgr-0006J2-0B for qemu-devel@nongnu.org; Tue, 06 Apr 2021 13:40:41 -0400 Received: by mail-pg1-x534.google.com with SMTP id b17so7244791pgh.7 for ; Tue, 06 Apr 2021 10:40:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fmCgzHtzk5qDGe2eGqNAc4vF9R/bc/UzkhnNYf8s1aw=; b=X/xm6Ep5i+3WG9oCNPKExXqJNHZTZUZo9HQfDwtMnsP5WgJECs90FR9/S1r5qNNJBa lkmwpACXwZHh9u+8vihMS+7CrVNHX/AaEwNjowi0Ka3K0N/8zEgF9JodWqRqp12KziSe rNF9gmmvvvSWjTRAedBDLLZWSDK3icm836KQLBYAYikdK55udG92S1zlmdF65mu1B2yB wdbIUNN+XzcErvMdKLLq0cKb5Q6z1Hx0SiK49Vd7p1Ne9hdAKkUMo/1rVotRYO04Emnt NdIfpdAFmR3JKsveCZJKfN1ZrbAqD0wDgNzRwWtZK28mxQ4AgH7i92yWpDXDXwMYc1BV P4UA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fmCgzHtzk5qDGe2eGqNAc4vF9R/bc/UzkhnNYf8s1aw=; b=EbmQLfehi78EnKp0QGf69eLEvthrs5ioGg3Qfa7bbMbHGEJEsW6dIi8VjZFdjneA+u jcWCekL1E1bTME9krQguIBiiuvg3zlVp3/4sdlmn+uHwEi6SbskPhKaP09K5RTmKVjkI nNZ3zoEGF2STuKF4LEYVxv7glHkZIUI2qAePRsVPwmTAWI2m8uhitA5NuzRkRBl0wKh+ 60tHdLyznatuBVuHl/bRqfh9ySElWyL810EdmK9fa37r8QDqvocmsNEobstHAhm7cZJG TSyM7qjrvd8Bn6pY6CL5KlB2LV3jQI+ePNa8sRuGL6fDf6VVeEazvFU9iEqAvY51v3V2 eaKQ== X-Gm-Message-State: AOAM531dUsAJxE2rcJLFJ1CMF9eqp9tOji+kOppEi2hxKu6W6sB5qsAs kpUX8RoCFY9KTlsCYfIGDmqUBZAupxTU6A== X-Google-Smtp-Source: ABdhPJy6cxIBE/w8EOlYTmnkt8DIhs4rRwdHbGRXEgxiI7Z26x1RIkd7hKoZzUUOSYg0mBB8Zw9k6g== X-Received: by 2002:a63:dc43:: with SMTP id f3mr20047475pgj.290.1617730835344; Tue, 06 Apr 2021 10:40:35 -0700 (PDT) Received: from localhost.localdomain ([71.212.131.83]) by smtp.gmail.com with ESMTPSA id h15sm19148056pfo.20.2021.04.06.10.40.34 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Apr 2021 10:40:34 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Subject: [PATCH v4 02/12] target/arm: Check PAGE_WRITE_ORG for MTE writeability Date: Tue, 6 Apr 2021 10:40:21 -0700 Message-Id: <20210406174031.64299-3-richard.henderson@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210406174031.64299-1-richard.henderson@linaro.org> References: <20210406174031.64299-1-richard.henderson@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=2607:f8b0:4864:20::534; envelope-from=richard.henderson@linaro.org; helo=mail-pg1-x534.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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-arm@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" We can remove PAGE_WRITE when (internally) marking a page read-only because it contains translated code. This can be triggered by tests/tcg/aarch64/bti-2, after having serviced SIGILL trampolines on the stack. Signed-off-by: Richard Henderson --- target/arm/mte_helper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/target/arm/mte_helper.c b/target/arm/mte_helper.c index 0bbb9ec346..8be17e1b70 100644 --- a/target/arm/mte_helper.c +++ b/target/arm/mte_helper.c @@ -83,7 +83,7 @@ static uint8_t *allocation_tag_mem(CPUARMState *env, int ptr_mmu_idx, uint8_t *tags; uintptr_t index; - if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE : PAGE_READ))) { + if (!(flags & (ptr_access == MMU_DATA_STORE ? PAGE_WRITE_ORG : PAGE_READ))) { /* SIGSEGV */ arm_cpu_tlb_fill(env_cpu(env), ptr, ptr_size, ptr_access, ptr_mmu_idx, false, ra); -- 2.25.1