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 mm01.cs.columbia.edu (mm01.cs.columbia.edu [128.59.11.253]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2327C433EF for ; Mon, 25 Apr 2022 15:13:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 24FF14B23A; Mon, 25 Apr 2022 11:13:09 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Authentication-Results: mm01.cs.columbia.edu (amavisd-new); dkim=softfail (fail, message has been altered) header.i=@google.com Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id CKbfFxHU5h96; Mon, 25 Apr 2022 11:13:08 -0400 (EDT) Received: from mm01.cs.columbia.edu (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 17A854B229; Mon, 25 Apr 2022 11:13:08 -0400 (EDT) Received: from localhost (localhost [127.0.0.1]) by mm01.cs.columbia.edu (Postfix) with ESMTP id 14F9F4B0D6 for ; Mon, 25 Apr 2022 11:13:06 -0400 (EDT) X-Virus-Scanned: at lists.cs.columbia.edu Received: from mm01.cs.columbia.edu ([127.0.0.1]) by localhost (mm01.cs.columbia.edu [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id mJyGFIxWivQq for ; Mon, 25 Apr 2022 11:13:05 -0400 (EDT) Received: from mail-pj1-f41.google.com (mail-pj1-f41.google.com [209.85.216.41]) by mm01.cs.columbia.edu (Postfix) with ESMTPS id 206B24A19A for ; Mon, 25 Apr 2022 11:13:05 -0400 (EDT) Received: by mail-pj1-f41.google.com with SMTP id m14-20020a17090a34ce00b001d5fe250e23so2864544pjf.3 for ; Mon, 25 Apr 2022 08:13:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=9K6RsS9yPXS4qwCnQU4PvhBaosajT6TXjveseEixd9Y=; b=Td8+8OcwoY3gMAuGy+Nr7PDBXjeTKxoXi6wOU0bvpucj+ZegyFRrb3nNV04TsgD8WB RSOLS2NTdczLjZ1AveRgpgmHKul+uTROWO9g2KaNG4ZQ/Tsef4I5BA9eGSstyX/lebc1 Xjp4PIm9vk6XpnMvJs0fbh4nF26ppyY+R+HNauGnycg+BDyfkicDyzGEi9n04tJS/Go+ ifSZhxhhIwUFqugC2nYiradOOf3VKGY6aKUxugzPUNvX47TUhTcufsa61KoMLhYPnPOk sGM6dlEaPevIBdzIJShxBddisnmzp79s5CDR38STSlzZyUV59TW3Q8W7gwBd6MsLYRY2 /1Rw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=9K6RsS9yPXS4qwCnQU4PvhBaosajT6TXjveseEixd9Y=; b=6AF8kTBirSb6WaDPRTZuuO738b3FRgA6iL6aZmB281X4Tf1/b+8YNT9tIcLTyXrEo0 U4tEDv2XeQEZkJgiycwvwNCh6XS6xgPVSnR0UF5ATqUkRipzbBO9HNwHSdi2mgmkUeFO L3eCowGhhl4gVS1EYou6naOydwJib1JQIBfWiSrrZxIG7c0NBawpI4mBPFkFjmHis1lB x+l8v3Li0iKPuaJZ/iHiZNs7UmOyKCn9Sn08axWlZJUdmBHm9Q0XNl4BoFJHFFJZffad o3+c7E2tQVLZBKr8o2RBs/s5vvhZz79M8duMfZ9QHvIOOdlz9Z0il1ppcvCuu4BlRFDN TGPA== X-Gm-Message-State: AOAM5329za/qxoAxiqst6CQNhIQMMa2ocrSD+PNXuWTj2OLqvmrXTS5N /tn7Io3U1POROfOSXhqN1QHaFA== X-Google-Smtp-Source: ABdhPJwUOlDnUHF5k3woHlV9TQvV9nTL1L7mwNMrpk9JJnQLty3+DM3IyKzJ5rF+Kktvx1yg6+/bZQ== X-Received: by 2002:a17:90b:390b:b0:1d6:b448:b26f with SMTP id ob11-20020a17090b390b00b001d6b448b26fmr21328663pjb.61.1650899583966; Mon, 25 Apr 2022 08:13:03 -0700 (PDT) Received: from google.com (157.214.185.35.bc.googleusercontent.com. [35.185.214.157]) by smtp.gmail.com with ESMTPSA id p64-20020a622943000000b004fdd5c07d0bsm11630040pfp.63.2022.04.25.08.13.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Apr 2022 08:13:03 -0700 (PDT) Date: Mon, 25 Apr 2022 15:13:00 +0000 From: Sean Christopherson To: Oliver Upton Subject: Re: [RFC PATCH 06/17] KVM: arm64: Implement break-before-make sequence for parallel walks Message-ID: References: <20220415215901.1737897-1-oupton@google.com> <20220415215901.1737897-7-oupton@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220415215901.1737897-7-oupton@google.com> Cc: kvm@vger.kernel.org, Marc Zyngier , Peter Shier , Ben Gardon , David Matlack , Paolo Bonzini , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org X-BeenThere: kvmarm@lists.cs.columbia.edu X-Mailman-Version: 2.1.14 Precedence: list List-Id: Where KVM/ARM decisions are made List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu On Fri, Apr 15, 2022, Oliver Upton wrote: > The ARM architecture requires that software use the 'break-before-make' > sequence whenever memory is being remapped. What does "remapped" mean here? Changing the pfn? Promoting/demoting to/from a huge page? _______________________________________________ kvmarm mailing list kvmarm@lists.cs.columbia.edu https://lists.cs.columbia.edu/mailman/listinfo/kvmarm