linux-kernel - Re: [PATCH] uio/uio_pci_generic: Add SR-IOV support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1506613946.7476.130.camel@infradead.org>
Date:   Thu, 28 Sep 2017 16:52:26 +0100
From:   David Woodhouse <dwmw2@...radead.org>
To:     Don Dutile <ddutile@...hat.com>,
        Alexander Duyck <alexander.duyck@...il.com>
Cc:     Bjorn Helgaas <helgaas@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-pci <linux-pci@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Alexander Duyck <alexander.h.duyck@...el.com>,
        "Bryant G. Ly" <bryantly@...ux.vnet.ibm.com>,
        Bodong Wang <bodong@...lanox.com>,
        Alex Williamson <alex.williamson@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>, kvm@...r.kernel.org
Subject: Re: [PATCH] uio/uio_pci_generic: Add SR-IOV support

On Thu, 2017-09-28 at 11:05 -0400, Don Dutile wrote:
> ah, nickel summary: no in-kernel driver w/.sriov-configure method.
> if so, now I'm up to speed with you....
> hmmmm....
> so, that would imply we need an in-kernel, pcie-common, .sriov-
> configure method
> that's invoked if a driver isn't bound to a device? ... yes?

Well that was kind of the point in my question below the ---

Is that something we want to be generic? Would we want to have quirks
for the devices where we might *not* want it? 

Anything that *has* a driver for the PF, should have .sriov_configure
already. Anything that doesn't have a driver can (now) use UIO to
enable SR-IOV. So we don't *have* to make it unconditionally
available...
Download attachment "smime.p7s" of type "application/x-pkcs7-signature" (4938 bytes)