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([2a00:23c5:5785:9a01:ad9a:ab78:5748:a7ec]) by smtp.gmail.com with ESMTPSA id z6sm3266243wmp.1.2021.08.19.11.54.45 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Aug 2021 11:54:46 -0700 (PDT) X-BeenThere: xen-devel@lists.xenproject.org List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Precedence: list Sender: "Xen-devel" X-Inumbo-ID: 8102c11f-a44c-4f35-8c6a-6bed057912ee DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:reply-to:subject:to:cc:references:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=mvULkYvqm6BI1lVy/Zt820NeNShyQCV7ZeA2HFgF+3o=; b=S/6Appc5aEvoL/jAol38cWxwuTVzV429CnIgyqoEWZsR2bCU0+AkCblgXcM9d9al8R mAeYxy2O3GhEImb60TVurBA8iidf8ldl8i8nVCQiNBGYfbeFEyjEaoiLTlO2IPcudc3x AGYmKLVG+ytm1ZEUrFJDMhMM0OtdmeJfDjr5re66VwY36Umbh5BDtqwoDRgDhr+wwKN7 kkrT7aAiUfYd+sSu6q2ii8NqbtRokQM02tzTdScIyt5HhR61NIhbti919qhSw6osU9sy U8fE+v4TkgwpbqJwglGqap5LsdvlmofKF+O10/DSYtywoF0c/FrLi01QFHnoelsURC4q aPkw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:reply-to:subject:to:cc:references :message-id:date:user-agent:mime-version:in-reply-to :content-language:content-transfer-encoding; bh=mvULkYvqm6BI1lVy/Zt820NeNShyQCV7ZeA2HFgF+3o=; b=XXafi/234LZgzre9fjlVAjBHQaFGre5QcxK3bDZuSAjRM5BxxFb5bCKBb52cXTxlZR WG6i6dlhCwJHjKLpsLabTCBahyGFt6rVKLvVR7phmCbX3GuNKDooQwA8rEOzz/fO9yq7 TpccWqbhISZiNo6CPnsj2EVW3+OgRLjQWbmiTQ8yKwE885zZt0Z4RIQXglVsxbXAt5Gc jdU0bsKvEyja5sMw8NU5ELvo0RaIDIH2B8A5/BmT7D87gX0ZpfD99c2kgz6JMdJ6D1OS /0TqUcOJAwa7rTiCR0plngD5uNWruSjaNXgRG4WTqHfvINXZJQKGrfnxrl+FRfHt4JzP 2hHg== X-Gm-Message-State: AOAM531wQA2GDIUQThxdSyn0RKCuOi13b3NrBI/Ig1ne2r/nChy7YPzL OlAhssOdBYzoY0fmt24Hcuo= X-Google-Smtp-Source: ABdhPJzaMkSORURVkePNNVbW1LdvqyixfqoaTu8x8cE75xIPJjkeagpFg9ycDcs25fLnu3mcnnjYtw== X-Received: by 2002:adf:df0c:: with SMTP id y12mr5531533wrl.155.1629399286429; Thu, 19 Aug 2021 11:54:46 -0700 (PDT) From: Paul Durrant X-Google-Original-From: Paul Durrant Reply-To: paul@xen.org Subject: Re: [PATCH] AMD/IOMMU: don't increase perms when splitting superpage To: Jan Beulich , "xen-devel@lists.xenproject.org" Cc: Andrew Cooper References: Message-ID: Date: Thu, 19 Aug 2021 19:54:45 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.12.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit On 19/08/2021 09:04, Jan Beulich wrote: > The old (super)page's permissions ought to be propagated, rather than > blindly allowing both reads and writes. > > Signed-off-by: Jan Beulich Reviewed-by: Paul Durrant