Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-22 Thread Stefan Hajnoczi
On Tue, Jun 16, 2020 at 12:09:16PM -0400, Peter Xu wrote: > On Tue, Jun 16, 2020 at 04:49:28PM +0100, Stefan Hajnoczi wrote: > > Isolation between applications is preserved but there is no isolation > > between the device and the application itself. The application needs to > > trust the device. >

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-22 Thread Stefan Hajnoczi
On Tue, Jun 16, 2020 at 10:00:16AM -0700, Raj, Ashok wrote: > On Tue, Jun 16, 2020 at 04:49:28PM +0100, Stefan Hajnoczi wrote: > > On Tue, Jun 16, 2020 at 02:26:38AM +, Tian, Kevin wrote: > > > > From: Stefan Hajnoczi > > > > Sent: Monday, June 15, 2020 6:02 PM > > > > > > > > On Thu, Jun 11,

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-16 Thread Raj, Ashok
On Tue, Jun 16, 2020 at 04:49:28PM +0100, Stefan Hajnoczi wrote: > On Tue, Jun 16, 2020 at 02:26:38AM +, Tian, Kevin wrote: > > > From: Stefan Hajnoczi > > > Sent: Monday, June 15, 2020 6:02 PM > > > > > > On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > > > > Shared Virtual Addres

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-16 Thread Peter Xu
On Tue, Jun 16, 2020 at 04:49:28PM +0100, Stefan Hajnoczi wrote: > Isolation between applications is preserved but there is no isolation > between the device and the application itself. The application needs to > trust the device. > > Examples: > > 1. The device can snoop secret data from readabl

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-16 Thread Stefan Hajnoczi
On Tue, Jun 16, 2020 at 02:26:38AM +, Tian, Kevin wrote: > > From: Stefan Hajnoczi > > Sent: Monday, June 15, 2020 6:02 PM > > > > On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > > > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on > > > Intel platforms allow

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-16 Thread Stefan Hajnoczi
On Mon, Jun 15, 2020 at 12:39:40PM +, Liu, Yi L wrote: > > From: Stefan Hajnoczi > > Sent: Monday, June 15, 2020 6:02 PM > > > > On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > > > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on > > > Intel platforms allows

RE: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-15 Thread Tian, Kevin
> From: Stefan Hajnoczi > Sent: Monday, June 15, 2020 6:02 PM > > On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on > > Intel platforms allows address space sharing between device DMA and > > applications. SVA can

RE: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-15 Thread Liu, Yi L
> From: Stefan Hajnoczi > Sent: Monday, June 15, 2020 6:02 PM > > On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on > > Intel platforms allows address space sharing between device DMA and > > applications. SVA can

Re: [PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-15 Thread Stefan Hajnoczi
On Thu, Jun 11, 2020 at 05:15:19AM -0700, Liu Yi L wrote: > Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on > Intel platforms allows address space sharing between device DMA and > applications. SVA can reduce programming complexity and enhance security. > > This VFIO series

[PATCH v2 00/15] vfio: expose virtual Shared Virtual Addressing to VMs

2020-06-11 Thread Liu Yi L
Shared Virtual Addressing (SVA), a.k.a, Shared Virtual Memory (SVM) on Intel platforms allows address space sharing between device DMA and applications. SVA can reduce programming complexity and enhance security. This VFIO series is intended to expose SVA usage to VMs. i.e. Sharing guest applicati