From: Christoph Hellwig <hch@infradead.org>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, dev@dpdk.org, mtosatti@redhat.com,
thomas@monjalon.net, bluca@debian.org, jerinjacobk@gmail.com,
bruce.richardson@intel.com, cohuck@redhat.com
Subject: Re: [RFC PATCH 0/7] vfio/pci: SR-IOV support
Date: Tue, 4 Feb 2020 23:01:09 -0800 [thread overview]
Message-ID: <20200205070109.GA18027@infradead.org> (raw)
In-Reply-To: <158085337582.9445.17682266437583505502.stgit@gimli.home>
On Tue, Feb 04, 2020 at 04:05:34PM -0700, Alex Williamson wrote:
> We address this in a few ways in this series. First, we can use a bus
> notifier and the driver_override facility to make sure VFs are bound
> to the vfio-pci driver by default. This should eliminate the chance
> that a VF is accidentally bound and used by host drivers. We don't
> however remove the ability for a host admin to change this override.
That is just such a bad idea. Using VFs in the host is a perfectly
valid use case that you are breaking.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Alex Williamson <alex.williamson@redhat.com>
Cc: kvm@vger.kernel.org, linux-pci@vger.kernel.org,
linux-kernel@vger.kernel.org, dev@dpdk.org, mtosatti@redhat.com,
thomas@monjalon.net, bluca@debian.org, jerinjacobk@gmail.com,
bruce.richardson@intel.com, cohuck@redhat.com
Subject: Re: [dpdk-dev] [RFC PATCH 0/7] vfio/pci: SR-IOV support
Date: Tue, 4 Feb 2020 23:01:09 -0800 [thread overview]
Message-ID: <20200205070109.GA18027@infradead.org> (raw)
In-Reply-To: <158085337582.9445.17682266437583505502.stgit@gimli.home>
On Tue, Feb 04, 2020 at 04:05:34PM -0700, Alex Williamson wrote:
> We address this in a few ways in this series. First, we can use a bus
> notifier and the driver_override facility to make sure VFs are bound
> to the vfio-pci driver by default. This should eliminate the chance
> that a VF is accidentally bound and used by host drivers. We don't
> however remove the ability for a host admin to change this override.
That is just such a bad idea. Using VFs in the host is a perfectly
valid use case that you are breaking.
next prev parent reply other threads:[~2020-02-05 7:01 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-04 23:05 [RFC PATCH 0/7] vfio/pci: SR-IOV support Alex Williamson
2020-02-04 23:05 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:05 ` [RFC PATCH 1/7] vfio: Include optional device match in vfio_device_ops callbacks Alex Williamson
2020-02-04 23:05 ` [dpdk-dev] " Alex Williamson
2020-02-06 11:14 ` Cornelia Huck
2020-02-06 11:14 ` [dpdk-dev] " Cornelia Huck
2020-02-06 18:18 ` Alex Williamson
2020-02-06 18:18 ` [dpdk-dev] " Alex Williamson
2020-02-07 9:33 ` Cornelia Huck
2020-02-07 9:33 ` [dpdk-dev] " Cornelia Huck
2020-02-04 23:05 ` [RFC PATCH 2/7] vfio/pci: Implement match ops Alex Williamson
2020-02-04 23:05 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:06 ` [RFC PATCH 3/7] vfio/pci: Introduce VF token Alex Williamson
2020-02-04 23:06 ` [dpdk-dev] " Alex Williamson
2020-02-05 4:19 ` kbuild test robot
2020-02-05 7:57 ` Liu, Yi L
2020-02-05 7:57 ` [dpdk-dev] " Liu, Yi L
2020-02-05 14:13 ` Alex Williamson
2020-02-05 14:13 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:06 ` [RFC PATCH 4/7] vfio: Introduce VFIO_DEVICE_FEATURE ioctl and first user Alex Williamson
2020-02-04 23:06 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:06 ` [RFC PATCH 5/7] vfio/pci: Add sriov_configure support Alex Williamson
2020-02-04 23:06 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:06 ` [RFC PATCH 6/7] vfio/pci: Remove dev_fmt definition Alex Williamson
2020-02-04 23:06 ` [dpdk-dev] " Alex Williamson
2020-02-06 13:45 ` Cornelia Huck
2020-02-06 13:45 ` [dpdk-dev] " Cornelia Huck
2020-02-04 23:06 ` [RFC PATCH 7/7] vfio/pci: Cleanup .probe() exit paths Alex Williamson
2020-02-04 23:06 ` [dpdk-dev] " Alex Williamson
2020-02-04 23:17 ` [RFC PATCH 0/7] vfio/pci: SR-IOV support Alex Williamson
2020-02-04 23:17 ` [dpdk-dev] " Alex Williamson
2020-02-05 7:57 ` Liu, Yi L
2020-02-05 7:57 ` [dpdk-dev] " Liu, Yi L
2020-02-05 14:18 ` Alex Williamson
2020-02-05 14:18 ` [dpdk-dev] " Alex Williamson
2020-02-05 7:01 ` Christoph Hellwig [this message]
2020-02-05 7:01 ` Christoph Hellwig
2020-02-05 13:58 ` Alex Williamson
2020-02-05 13:58 ` [dpdk-dev] " Alex Williamson
2020-02-05 7:57 ` Liu, Yi L
2020-02-05 7:57 ` [dpdk-dev] " Liu, Yi L
2020-02-05 14:10 ` Alex Williamson
2020-02-05 14:10 ` [dpdk-dev] " Alex Williamson
2020-02-11 11:18 ` Jerin Jacob
2020-02-11 11:18 ` [dpdk-dev] " Jerin Jacob
2020-02-11 13:57 ` Thomas Monjalon
2020-02-11 17:06 ` Alex Williamson
2020-02-11 17:06 ` [dpdk-dev] " Alex Williamson
2020-02-11 18:03 ` Jerin Jacob
2020-02-11 18:03 ` [dpdk-dev] " Jerin Jacob
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