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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id DBFE5C433F5 for ; Sun, 27 Mar 2022 21:47:12 +0000 (UTC) Received: from localhost ([::1]:38260 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nYaj9-000083-Ie for qemu-devel@archiver.kernel.org; Sun, 27 Mar 2022 17:47:11 -0400 Received: from eggs.gnu.org ([209.51.188.92]:49192) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nYaiK-0007fR-1x; Sun, 27 Mar 2022 17:46:20 -0400 Received: from [2a00:1450:4864:20::433] (port=36491 helo=mail-wr1-x433.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1nYaiI-00064b-AF; Sun, 27 Mar 2022 17:46:19 -0400 Received: by mail-wr1-x433.google.com with SMTP id u3so17829338wrg.3; Sun, 27 Mar 2022 14:46:17 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=q2hSMi7eaQhktpaiorkcRpDqQkHLTQImNrdpdMsLKaY=; b=haKRkXgJ3GWoMU4Yzr7KDek3WVEFnjXAJoP9YD3xIiAGrZJ2e2PaUen9N8xkKenM2K dNCYh9rPBbkZ+gX7v3+GXQVY6/b7wzyUyUxqMlU3lnwnFJ/QjbLbRE9Y+7JAXugLGI1v tqRXSzD7Uw5mKEKso3lwmsFEmfIOh1oFr+N5UIHBqV78l35aRHLg9wjnrw8nJWR5DR5U /v5hB4HA9vGH6qdtmaMPLw5o/tOaCrEvITcpb+XNfZEa3A6hYK3QMXooMA3T82bNPiQa SDCOrvMu5jXKJB/5nwe0gQ1/YPnGqHGsnIuSqxIMprDa2dzP+mnRUydJJO0AmeeaU/nQ Wo2w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=q2hSMi7eaQhktpaiorkcRpDqQkHLTQImNrdpdMsLKaY=; b=GOJLJ5AtkBqYScClExyTTRKJusTDmniV9kXHnPIfuviNvgtdSnDfj2eFcfr772+I4q iecvgSKKya5PYL6GWSbg+W06HMOL2ySmvmBjMBvClKR6VgXpRZETOPRept5vs/xRTHjO H7K/BEbVzADVeUwuk3oxKRiF6EGX+IT2IFjySxbsBpyQeEwPvyTgFAYAcw9lTXem2KKA eljxfH+dB6zz/R9T4VyBgXnaU07RxUjGH7PjfIQOWKwKUfi4Tn5SwLMBWP82mAW0PLNa TKNhBKISckL7jb0TnQgYTmriUJX/K0TirM81RxJtRV/wqbCHi43gpUiBKk8aj1yf3Fsi 66Hg== X-Gm-Message-State: AOAM533JRrkmD+JLtFavaLc8yk0qmEjpdDCUs3ktsfRqbWz885a1ijab EqeZTUwLV5enck8XWLEDI/NE9byytC+FMg== X-Google-Smtp-Source: ABdhPJw2aM9woXEhf0C5kErNZNVh4vmycTIgBn+DG1zcq97y6wGsXzI/O6Zjjx1tqgXKvN/Fc483Fg== X-Received: by 2002:adf:e483:0:b0:203:f946:396 with SMTP id i3-20020adfe483000000b00203f9460396mr19069721wrm.548.1648417575892; Sun, 27 Mar 2022 14:46:15 -0700 (PDT) Received: from li-142ea8cc-3370-11b2-a85c-c55585c2aa0e.ibm.com.com (bzq-79-183-80-20.red.bezeqint.net. [79.183.80.20]) by smtp.gmail.com with ESMTPSA id j16-20020a05600c191000b0038ca3500494sm24485521wmq.27.2022.03.27.14.46.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 27 Mar 2022 14:46:15 -0700 (PDT) From: Idan Horowitz To: qemu-arm@nongnu.org Subject: Re: [PATCH 1/3] target/arm: Check VSTCR.SW when assigning the stage 2 output PA space Date: Mon, 28 Mar 2022 00:45:51 +0300 Message-Id: <20220327214551.2070008-1-idan.horowitz@gmail.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Host-Lookup-Failed: Reverse DNS lookup failed for 2a00:1450:4864:20::433 (failed) Received-SPF: pass client-ip=2a00:1450:4864:20::433; envelope-from=idan.horowitz@gmail.com; helo=mail-wr1-x433.google.com X-Spam_score_int: -6 X-Spam_score: -0.7 X-Spam_bar: / X-Spam_report: (-0.7 / 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_FROM=0.001, PDS_HP_HELO_NORDNS=0.659, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: , Cc: Peter Maydell , Idan Horowitz , qemu-devel@nongnu.org, =?UTF-8?q?R=C3=A9mi=20Denis-Courmont?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Rémi Denis-Courmont wrote: > The VTCR_EL2 specification says that the NSA bit "behaves as 1 for all purposes > other than reading back the value of the bit when one of the following is true > (...) > * The value of VTCR_EL2.NSW is 1. > * The value of VSTCR_EL2.SA is 1." > > Sorry but I don't see any reason to check the SW bit here. That still does not cover the case of NSA=0, NSW=0, SA=0, SW=1. > -- > Реми Дёни-Курмон > http://www.remlab.net/ Idan Horowitz