From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: Having troubles binding an SR-IOV VF to uio_pci_generic on Amazon instance Date: Thu, 1 Oct 2015 11:44:28 +0300 Message-ID: <20151001113828-mutt-send-email-mst@redhat.com> References: <560BCD2F.5060505@cloudius-systems.com> <20150930150115-mutt-send-email-mst@redhat.com> <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> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "dev@dpdk.org" To: Avi Kivity Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by dpdk.org (Postfix) with ESMTP id AB9F28E5A for ; Thu, 1 Oct 2015 10:44:31 +0200 (CEST) Content-Disposition: inline In-Reply-To: <20150930204016.GA29975@redhat.com> List-Id: patches and discussions about DPDK List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" On Wed, Sep 30, 2015 at 11:40:16PM +0300, Michael S. Tsirkin wrote: > > And for what, to prevent > > root from touching memory via dma that they can access in a million other > > ways? > > So one can be reasonably sure a kernel oops is not a result of a > userspace bug. Actually, I thought about this overnight, and it should be possible to drive it securely from userspace, without hypervisor changes. See https://mid.gmane.org/20151001104505-mutt-send-email-mst@redhat.com > -- > MST