Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-09 Thread Alex Williamson
On Mon, 9 Mar 2020 01:33:48 + "Tian, Kevin" wrote: > > From: Tian, Kevin > > Sent: Monday, March 9, 2020 9:22 AM > > > > > From: Alex Williamson > > > Sent: Monday, March 9, 2020 8:46 AM > > > > > > On Sat, 7 Mar 2020 01:04:41 + > > > "Tian, Kevin" wrote: > > > > > > > > From: Alex

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-09 Thread Tian, Kevin
> From: Tian, Kevin > Sent: Monday, March 9, 2020 9:22 AM > > > From: Alex Williamson > > Sent: Monday, March 9, 2020 8:46 AM > > > > On Sat, 7 Mar 2020 01:04:41 + > > "Tian, Kevin" wrote: > > > > > > From: Alex Williamson > > > > Sent: Friday, March 6, 2020 11:39 PM > > > > > > > > On Fri,

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-09 Thread Tian, Kevin
> From: Alex Williamson > Sent: Friday, March 6, 2020 11:39 PM > > On Fri, 6 Mar 2020 08:32:40 + > "Tian, Kevin" wrote: > > > > From: Alex Williamson > > > Sent: Friday, March 6, 2020 2:18 AM > > > > > > On Tue, 25 Feb 2020 02:59:37 + > > > "Tian, Kevin" wrote: > > > > > > > > From: A

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-09 Thread Tian, Kevin
> From: Alex Williamson > Sent: Monday, March 9, 2020 8:46 AM > > On Sat, 7 Mar 2020 01:04:41 + > "Tian, Kevin" wrote: > > > > From: Alex Williamson > > > Sent: Friday, March 6, 2020 11:39 PM > > > > > > On Fri, 6 Mar 2020 08:32:40 + > > > "Tian, Kevin" wrote: > > > > > > > > From: Al

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-09 Thread Tian, Kevin
> From: Alex Williamson > Sent: Friday, March 6, 2020 2:18 AM > > On Tue, 25 Feb 2020 02:59:37 + > "Tian, Kevin" wrote: > > > > From: Alex Williamson > > > Sent: Thursday, February 20, 2020 2:54 AM > > > > > > If we enable SR-IOV on a vfio-pci owned PF, the resulting VFs are not > > > fully

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-08 Thread Alex Williamson
On Sat, 7 Mar 2020 01:04:41 + "Tian, Kevin" wrote: > > From: Alex Williamson > > Sent: Friday, March 6, 2020 11:39 PM > > > > On Fri, 6 Mar 2020 08:32:40 + > > "Tian, Kevin" wrote: > > > > > > From: Alex Williamson > > > > Sent: Friday, March 6, 2020 2:18 AM > > > > > > > > On Tue,

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-06 Thread Alex Williamson
On Fri, 6 Mar 2020 08:32:40 + "Tian, Kevin" wrote: > > From: Alex Williamson > > Sent: Friday, March 6, 2020 2:18 AM > > > > On Tue, 25 Feb 2020 02:59:37 + > > "Tian, Kevin" wrote: > > > > > > From: Alex Williamson > > > > Sent: Thursday, February 20, 2020 2:54 AM > > > > > > > > If

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-03-05 Thread Alex Williamson
On Tue, 25 Feb 2020 02:59:37 + "Tian, Kevin" wrote: > > From: Alex Williamson > > Sent: Thursday, February 20, 2020 2:54 AM > > > > If we enable SR-IOV on a vfio-pci owned PF, the resulting VFs are not > > fully isolated from the PF. The PF can always cause a denial of service > > to the VF

Re: [dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-02-25 Thread Tian, Kevin
> From: Alex Williamson > Sent: Thursday, February 20, 2020 2:54 AM > > If we enable SR-IOV on a vfio-pci owned PF, the resulting VFs are not > fully isolated from the PF. The PF can always cause a denial of service > to the VF, even if by simply resetting itself. The degree to which a PF > can

[dpdk-dev] [PATCH v2 3/7] vfio/pci: Introduce VF token

2020-02-19 Thread Alex Williamson
If we enable SR-IOV on a vfio-pci owned PF, the resulting VFs are not fully isolated from the PF. The PF can always cause a denial of service to the VF, even if by simply resetting itself. The degree to which a PF can access the data passed through a VF or interfere with its operation is dependen