From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f175.google.com (mail-wi0-f175.google.com [209.85.212.175]) by dpdk.org (Postfix) with ESMTP id 4A4A88D90 for ; Thu, 1 Oct 2015 11:48:33 +0200 (CEST) Received: by wicfx3 with SMTP id fx3so20058602wic.0 for ; Thu, 01 Oct 2015 02:48:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:message-id:date:from:organization:user-agent :mime-version:to:cc:subject:references:in-reply-to:content-type :content-transfer-encoding; bh=hIeH4Z8ULGYqnqiSAdiEkj23Hi6mxsDeFSL6OYb3h1U=; b=LX8PTqOPGszxw/QoHbrtnobqac3hI5tLsnfP7VlSPHwCR0YYG6bd+HVZrG3XeH/eWA /x/zqY8Am6B90fDQdeXgKE07lMBep3Jn/aWRzB9WxvtiyvED9XD0D/6sfhDqwbEsRqAn wiI7vIVLa9UAVwKhrzdVe+N7mBcEBUtL6Pv0w9jLdPt9xO3BcOmB6LxfJHw1TvTvL6dA 90UPwnIrxZvRNIhshfd6NvSLPL+lP888ctMucs3Va3lAIJ9fvVp4fQFYWjJKL/o4QsrP UGNxIPcweIdIiIR4/ftI/PmTYeW4e9ObH9l6bm1UjmWUpt4rld1VwtsTU5cXo/9SE1XD wTPg== X-Gm-Message-State: ALoCoQlGRR8WG7lVhOkWrkskAclvLnxl1ga8+ZZCYFnsZ6JdTlBeYcgF5B8ebEbRSEgiD4r07erV X-Received: by 10.180.93.131 with SMTP id cu3mr2186814wib.8.1443692913083; Thu, 01 Oct 2015 02:48:33 -0700 (PDT) Received: from saturne.dev.6wind.com (guy78-3-82-239-227-177.fbx.proxad.net. [82.239.227.177]) by smtp.gmail.com with ESMTPSA id ht5sm2291137wib.10.2015.10.01.02.48.31 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 01 Oct 2015 02:48:32 -0700 (PDT) Message-ID: <560D0170.3080707@6wind.com> Date: Thu, 01 Oct 2015 11:48:32 +0200 From: Vincent JARDIN Organization: www.6wind.com User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.5.0 MIME-Version: 1.0 To: Avi Kivity , "Michael S. Tsirkin" References: <560BD284.7040505@cloudius-systems.com> <20150930151632-mutt-send-email-mst@redhat.com> <560BDE24.8000308@scylladb.com> <20150930165359-mutt-send-email-mst@redhat.com> <560BF782.4070308@scylladb.com> <20150930175848-mutt-send-email-mst@redhat.com> <560C0171.7080507@scylladb.com> <20150930204016.GA29975@redhat.com> <20151001113828-mutt-send-email-mst@redhat.com> <560CF44A.60102@scylladb.com> <20151001120027-mutt-send-email-mst@redhat.com> <560CFB66.5050904@scylladb.com> <560CFFFF.4000601@6wind.com> <560D0059.5050003@scylladb.com> In-Reply-To: <560D0059.5050003@scylladb.com> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Cc: "dev@dpdk.org" Subject: Re: [dpdk-dev] Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Oct 2015 09:48:33 -0000 On 01/10/2015 11:43, Avi Kivity wrote: > > That is because the device itself contains an iommu. Yes. It could be an option: - we could flag the Linux system unsafe when the device does not have any IOMMU - we flag the Linux system safe when the device has an IOMMU