rwitz
> ; changpeng@intel.com;
> dgilb...@redhat.com; Yan Zhao ; Michael S . Tsirkin
> ; Gerd Hoffmann ; Christophe de
> Dinechin ; Jason Wang ;
> Cornelia Huck ; Kirti Wankhede
> ; Paolo Bonzini ;
> mpiszc...@ddn.com; John Levon
> Subject: Re: [PATCH v8] introduce vfio-user pr
> > Are there rules for avoiding deadlock between client->server and
> > server->client messages? For example, the client sends
> > VFIO_USER_REGION_WRITE and the server sends
> VFIO_USER_VM_INTERRUPT
> > before replying to the write message.
> >
> > Multi-threaded clients and servers could end up
> > > +VFIO_USER_DMA_UNMAP
> > > +---
> > > +
> > > +This command message is sent by the client to the server to inform
> > > +it that a DMA region, previously made available via a
> > > +VFIO_USER_DMA_MAP command message, is no longer available for
> DMA.
> > > +It typically
On Wed, May 19, 2021 at 03:08:17PM -0600, Alex Williamson wrote:
> > +VFIO_USER_DMA_MAP
> > +-
> > +
> > +Message Format
> > +^^
> > +
> > ++--++
> > +| Name | Value |
> >
On Wed, 14 Apr 2021 04:41:22 -0700
Thanos Makatos wrote:
> +
> +VFIO_USER_DMA_MAP
> +-
> +
> +Message Format
> +^^
> +
> ++--++
> +| Name | Value |
> ++==++
> +| Message ID
> On May 10, 2021, at 3:25 PM, John Levon wrote:
>
> On Mon, May 10, 2021 at 05:57:37PM +0100, Stefan Hajnoczi wrote:
>
>
>>> +VFIO_USER_VM_INTERRUPT
>>> +--
>>> +
>>> +Message format
>>> +^^
>>> +
>>> ++++
>>> +| Name
On Tue, May 11, 2021 at 10:43:57AM +, John Levon wrote:
> On Tue, May 11, 2021 at 11:09:53AM +0100, Stefan Hajnoczi wrote:
> > Fleshing out irqs sounds like a 1.0 milestone to me. It will definitely
> > be necessary but for now this can be dropped.
>
> I could be wrong, and probably am, but I
On Tue, May 11, 2021 at 11:09:53AM +0100, Stefan Hajnoczi wrote:
> > > > +* *sub-regions* is the array of Sub-Region IO FD info structures
> > > > +
> > > > +The reply message will additionally include at least one file
> > > > descriptor in the
> > > > +ancillary data. Note that more than one
On Mon, May 10, 2021 at 10:25:41PM +, John Levon wrote:
> On Mon, May 10, 2021 at 05:57:37PM +0100, Stefan Hajnoczi wrote:
> > On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> > > +Region IO FD info format
> > > +
> > > +
> > >
On Mon, May 10, 2021 at 05:57:37PM +0100, Stefan Hajnoczi wrote:
> On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
>
> Elena A: I CCed you in case you want to review the
Sorry, we should have included Elena already.
> > +VFIO sparse mmap
> > +
> > +
> >
On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
Elena A: I CCed you in case you want to review the
VFIO_USER_DEVICE_GET_REGION_IO_FDS section that describes how ioregionfd
can be used by the vfio-user protocol. If you're busy, don't worry but
it's just nice to know that your
rwitz
> ; changpeng@intel.com;
> dgilb...@redhat.com; Yan Zhao ; Michael S . Tsirkin
> ; Gerd Hoffmann ; Christophe de
> Dinechin ; Jason Wang ;
> Cornelia Huck ; Kirti Wankhede
> ; Paolo Bonzini ;
> mpiszc...@ddn.com
> Subject: Re: [PATCH v8] introduce vfio-user protocol s
Thanks, I will review the rest of the spec early next week.
Stefan
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On Tue, May 04, 2021 at 02:51:45PM +0100, Stefan Hajnoczi wrote:
> > +While passing of file descriptors is desirable for performance reasons, it
> > is
> > +not necessary neither for the client nor for the server to support it in
> > order
>
> Double negative. "not" can be removed.
Done. I
On Tue, May 04, 2021 at 02:31:45PM +, John Levon wrote:
> On Tue, May 04, 2021 at 02:51:45PM +0100, Stefan Hajnoczi wrote:
>
> > On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> > By the way, this DMA mapping design is the eager mapping approach. Another
> > approach is the
On Tue, May 04, 2021 at 02:51:45PM +0100, Stefan Hajnoczi wrote:
> On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> > This patch introduces the vfio-user protocol specification (formerly
> > known as VFIO-over-socket), which is designed to allow devices to be
Thanks for your
On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> This patch introduces the vfio-user protocol specification (formerly
> known as VFIO-over-socket), which is designed to allow devices to be
> emulated outside QEMU, in a separate process. vfio-user reuses the
> existing VFIO
; Gerd Hoffmann ; Christophe de
> > Dinechin ; Jason Wang ;
> > Cornelia Huck ; Kirti Wankhede
> > ; Paolo Bonzini ;
> > mpiszc...@ddn.com; John Levon
> > Subject: Re: [PATCH v8] introduce vfio-user protocol specification
> >
> > On Wed, Apr 14, 2021 a
tomassetti.and...@gmail.com; Raphael Norwitz
> ; changpeng@intel.com;
> dgilb...@redhat.com; Yan Zhao ; Michael S . Tsirkin
> ; Gerd Hoffmann ; Christophe de
> Dinechin ; Jason Wang ;
> Cornelia Huck ; Kirti Wankhede
> ; Paolo Bonzini ;
> mpiszc...@ddn.com; John Levon
&g
On Wed, Apr 14, 2021 at 04:41:22AM -0700, Thanos Makatos wrote:
> This patch introduces the vfio-user protocol specification (formerly
> known as VFIO-over-socket), which is designed to allow devices to be
> emulated outside QEMU, in a separate process. vfio-user reuses the
> existing VFIO
This patch introduces the vfio-user protocol specification (formerly
known as VFIO-over-socket), which is designed to allow devices to be
emulated outside QEMU, in a separate process. vfio-user reuses the
existing VFIO defines, structs and concepts.
It has been earlier discussed as an RFC in:
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