Setting up a call to discuss PCI Emulation - Future Direction

Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

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Hi all,

I had an action to set up a call on discussing the future direction of PCI Emulation. I CC’ed everyone who raised an interest. I propose to use Gotomeeting unless there are objections.

As far as I can tell, we have people in the following time-zones: PST to EST and BST. Not sure where Alexey is based, but it looks as if

16:00 – 17:00 BST
17:00 – 18:00 BST
18:00 – 19:00 BST
BST = UTC+1

may work. For me Mon, Wed and Fri’s generally work at those time-slots. Next week is a little busy for me, so I would prefer the following week. If you could fill out the following Google poll, if this week works that would be great. Otherwise please scream.

https://doodle.com/poll/gdnmcrvnibmw563n

If you are not on the CC list and want to be CC’ed on the invite, please add your e-mail address to the google poll (after your name)

Regards
Lars




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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Roger Pau Monné]

On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
>    Hi all,
> 
>     
> 
>    I had an action to set up a call on discussing the future direction of PCI
>    Emulation. I CC’ed everyone who raised an interest. I propose to use
>    Gotomeeting unless there are objections.
> 
>     
> 
>    As far as I can tell, we have people in the following time-zones: PST to
>    EST and BST. Not sure where Alexey is based, but it looks as if
> 
>     
> 
>    16:00 – 17:00 BST
> 
>    17:00 – 18:00 BST
> 
>    18:00 – 19:00 BST
> 
>    BST = UTC+1
> 
>     
> 
>    may work. For me Mon, Wed and Fri’s generally work at those time-slots.
>    Next week is a little busy for me, so I would prefer the following week.
>    If you could fill out the following Google poll, if this week works that
>    would be great. Otherwise please scream.

I'm afraid I'm on vacations from the 21st to the 29th of April, so I
won't be able to join the meeting unless we move it to the week after.
Let's see what people think of the current dates.

Roger.

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com> wrote:

    On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:


    >    may work. For me Mon, Wed and Fri’s generally work at those time-slots.
    >    Next week is a little busy for me, so I would prefer the following week.
    >    If you could fill out the following Google poll, if this week works that
    >    would be great. Otherwise please scream.
    
    I'm afraid I'm on vacations from the 21st to the 29th of April, so I
    won't be able to join the meeting unless we move it to the week after.
    Let's see what people think of the current dates.
    
    Roger.
    
Hi, I changed the dates to the week after. Poll so far has been invalidated.

See https://doodle.com/poll/gdnmcrvnibmw563n

Lars


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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Alexey G]

On Thu, 12 Apr 2018 16:32:57 +0000
Lars Kurth <lars.kurth@citrix.com> wrote:
>Hi all,
>
>I had an action to set up a call on discussing the future direction of
>PCI Emulation. I CC’ed everyone who raised an interest. I propose to
>use Gotomeeting unless there are objections.
>
>As far as I can tell, we have people in the following time-zones: PST
>to EST and BST. Not sure where Alexey is based, but it looks as if
>
>16:00 – 17:00 BST
>17:00 – 18:00 BST
>18:00 – 19:00 BST
>BST = UTC+1

Ideally, any time before 17:00 UTC would be preferable for my timezone
(UTC+10), but the 18:00 – 19:00 BST option should ok too (although
much less preferable, unticked '18:00–19:00 BST' checkboxes in the poll
to reflect this).

>may work. For me Mon, Wed and Fri’s generally work at those
>time-slots. Next week is a little busy for me, so I would prefer the
>following week. If you could fill out the following Google poll, if
>this week works that would be great. Otherwise please scream.
>
>https://doodle.com/poll/gdnmcrvnibmw563n
>

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Jan Beulich]

>>> On 12.04.18 at 18:32, <lars.kurth@citrix.com> wrote:
> I had an action to set up a call on discussing the future direction of PCI 
> Emulation. I CC’ed everyone who raised an interest. I propose to use 
> Gotomeeting unless there are objections.

FTR - I had expressed an interest too; I can't really plan for the next week or
two though at this point, so I'd join if I can whenever the meeting takes place.

Jan


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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

On 13/04/2018, 09:13, "Jan Beulich" <JBeulich@suse.com> wrote:

    >>> On 12.04.18 at 18:32, <lars.kurth@citrix.com> wrote:
    > I had an action to set up a call on discussing the future direction of PCI 
    > Emulation. I CC’ed everyone who raised an interest. I propose to use 
    > Gotomeeting unless there are objections.
    
    FTR - I had expressed an interest too; I can't really plan for the next week or
    two though at this point, so I'd join if I can whenever the meeting takes place.
    
Apologies: I must have missed this. The meeting is currently scheduled the 1st week of May, with May 2nd & 4th 17:00-18:00 BST (UTC+1) looking like the most promising options.
This is outside the 1-2 week window you mention above. Unless I hear otherwise, I am assuming that week is fine.

Regards
Lars


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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Roger Pau Monné]

On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
> 
> 
> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
> 
>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
> 
> 
>     >    may work. For me Mon, Wed and Fri’s generally work at those time-slots.
>     >    Next week is a little busy for me, so I would prefer the following week.
>     >    If you could fill out the following Google poll, if this week works that
>     >    would be great. Otherwise please scream.
>     
>     I'm afraid I'm on vacations from the 21st to the 29th of April, so I
>     won't be able to join the meeting unless we move it to the week after.
>     Let's see what people think of the current dates.
>     
>     Roger.
>     
> Hi, I changed the dates to the week after. Poll so far has been invalidated.
> 
> See https://doodle.com/poll/gdnmcrvnibmw563n

Thanks! I've already fixed my vote.

I guess this will come later, but we need a clear agenda of items
because the x86 and ARM topics are probably going to be completely
different (albeit all related to PCI).

Roger.

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

On 13/04/2018, 11:01, "Roger Pau Monne" <roger.pau@citrix.com> wrote:

    On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
    > 
    > 
    > On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
    > 
    >     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
    > 
    > 
    >     >    may work. For me Mon, Wed and Fri’s generally work at those time-slots.
    >     >    Next week is a little busy for me, so I would prefer the following week.
    >     >    If you could fill out the following Google poll, if this week works that
    >     >    would be great. Otherwise please scream.
    >     
    >     I'm afraid I'm on vacations from the 21st to the 29th of April, so I
    >     won't be able to join the meeting unless we move it to the week after.
    >     Let's see what people think of the current dates.
    >     
    >     Roger.
    >     
    > Hi, I changed the dates to the week after. Poll so far has been invalidated.
    > 
    > See https://doodle.com/poll/gdnmcrvnibmw563n
    
    Thanks! I've already fixed my vote.
    
    I guess this will come later, but we need a clear agenda of items
    because the x86 and ARM topics are probably going to be completely
    different (albeit all related to PCI).

Royger: I am OK with trying to get a draft agenda in place in this e-mail thread. But I can't drive this, as I don’t understand the issues. But I am happy to collate everything as for the x86 call and write up minutes

Lars
 

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Roger Pau Monné]

On Fri, Apr 13, 2018 at 12:59:15PM +0100, Lars Kurth wrote:
> 
> 
> On 13/04/2018, 11:01, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
> 
>     On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
>     > 
>     > 
>     > On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
>     > 
>     >     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
>     > 
>     > 
>     >     >    may work. For me Mon, Wed and Fri’s generally work at those time-slots.
>     >     >    Next week is a little busy for me, so I would prefer the following week.
>     >     >    If you could fill out the following Google poll, if this week works that
>     >     >    would be great. Otherwise please scream.
>     >     
>     >     I'm afraid I'm on vacations from the 21st to the 29th of April, so I
>     >     won't be able to join the meeting unless we move it to the week after.
>     >     Let's see what people think of the current dates.
>     >     
>     >     Roger.
>     >     
>     > Hi, I changed the dates to the week after. Poll so far has been invalidated.
>     > 
>     > See https://doodle.com/poll/gdnmcrvnibmw563n
>     
>     Thanks! I've already fixed my vote.
>     
>     I guess this will come later, but we need a clear agenda of items
>     because the x86 and ARM topics are probably going to be completely
>     different (albeit all related to PCI).
> 
> Royger: I am OK with trying to get a draft agenda in place in this e-mail thread. But I can't drive this, as I don’t understand the issues. But I am happy to collate everything as for the x86 call and write up minutes

On the x86 side:

 - Q35 HVM emulation, adding MCFG support to guests.
 - PVH guest pci-passthrough: using the internal vPCI infrastructure.

At least that I can think of ATM.

Roger.

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Paul Durrant]

> -----Original Message-----
> From: Roger Pau Monne
> Sent: 13 April 2018 20:53
> To: Lars Kurth <lars.kurth@citrix.com>
> Cc: xen-devel <xen-devel@lists.xenproject.org>; Daniel Smith
> <dpsmith@apertussolutions.com>; Alexey G <x1917x@gmail.com>; Stefano
> Stabellini <sstabellini@kernel.org>; Julien Grall <julien.grall@arm.com>; Paul
> Durrant <Paul.Durrant@citrix.com>; Christopher Clark
> <christopher.w.clark@gmail.com>; Rich Persaud <persaur@gmail.com>
> Subject: Re: Setting up a call to discuss PCI Emulation - Future Direction
> 
> On Fri, Apr 13, 2018 at 12:59:15PM +0100, Lars Kurth wrote:
> >
> >
> > On 13/04/2018, 11:01, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
> >
> >     On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
> >     >
> >     >
> >     > On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
> wrote:
> >     >
> >     >     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
> >     >
> >     >
> >     >     >    may work. For me Mon, Wed and Fri’s generally work at those
> time-slots.
> >     >     >    Next week is a little busy for me, so I would prefer the following
> week.
> >     >     >    If you could fill out the following Google poll, if this week works
> that
> >     >     >    would be great. Otherwise please scream.
> >     >
> >     >     I'm afraid I'm on vacations from the 21st to the 29th of April, so I
> >     >     won't be able to join the meeting unless we move it to the week
> after.
> >     >     Let's see what people think of the current dates.
> >     >
> >     >     Roger.
> >     >
> >     > Hi, I changed the dates to the week after. Poll so far has been
> invalidated.
> >     >
> >     > See https://doodle.com/poll/gdnmcrvnibmw563n
> >
> >     Thanks! I've already fixed my vote.
> >
> >     I guess this will come later, but we need a clear agenda of items
> >     because the x86 and ARM topics are probably going to be completely
> >     different (albeit all related to PCI).
> >
> > Royger: I am OK with trying to get a draft agenda in place in this e-mail
> thread. But I can't drive this, as I don’t understand the issues. But I am happy
> to collate everything as for the x86 call and write up minutes
> 
> On the x86 side:
> 
>  - Q35 HVM emulation, adding MCFG support to guests.

One of the issues here is support for multiple external emulators w.r.t. config space access.

>  - PVH guest pci-passthrough: using the internal vPCI infrastructure.

Let's not distinguish between HVM or PVH here. We want to use the same passthrough mechanisms for both.

Cheers,

  Paul

> 
> At least that I can think of ATM.
> 
> Roger.
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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Stefano Stabellini]

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On Sat, 14 Apr 2018, Paul Durrant wrote:
> > -----Original Message-----
> > From: Roger Pau Monne
> > Sent: 13 April 2018 20:53
> > To: Lars Kurth <lars.kurth@citrix.com>
> > Cc: xen-devel <xen-devel@lists.xenproject.org>; Daniel Smith
> > <dpsmith@apertussolutions.com>; Alexey G <x1917x@gmail.com>; Stefano
> > Stabellini <sstabellini@kernel.org>; Julien Grall <julien.grall@arm.com>; Paul
> > Durrant <Paul.Durrant@citrix.com>; Christopher Clark
> > <christopher.w.clark@gmail.com>; Rich Persaud <persaur@gmail.com>
> > Subject: Re: Setting up a call to discuss PCI Emulation - Future Direction
> > 
> > On Fri, Apr 13, 2018 at 12:59:15PM +0100, Lars Kurth wrote:
> > >
> > >
> > > On 13/04/2018, 11:01, "Roger Pau Monne" <roger.pau@citrix.com> wrote:
> > >
> > >     On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
> > >     >
> > >     >
> > >     > On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
> > wrote:
> > >     >
> > >     >     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
> > >     >
> > >     >
> > >     >     >    may work. For me Mon, Wed and Fri’s generally work at those
> > time-slots.
> > >     >     >    Next week is a little busy for me, so I would prefer the following
> > week.
> > >     >     >    If you could fill out the following Google poll, if this week works
> > that
> > >     >     >    would be great. Otherwise please scream.
> > >     >
> > >     >     I'm afraid I'm on vacations from the 21st to the 29th of April, so I
> > >     >     won't be able to join the meeting unless we move it to the week
> > after.
> > >     >     Let's see what people think of the current dates.
> > >     >
> > >     >     Roger.
> > >     >
> > >     > Hi, I changed the dates to the week after. Poll so far has been
> > invalidated.
> > >     >
> > >     > See https://doodle.com/poll/gdnmcrvnibmw563n
> > >
> > >     Thanks! I've already fixed my vote.
> > >
> > >     I guess this will come later, but we need a clear agenda of items
> > >     because the x86 and ARM topics are probably going to be completely
> > >     different (albeit all related to PCI).
> > >
> > > Royger: I am OK with trying to get a draft agenda in place in this e-mail
> > thread. But I can't drive this, as I don’t understand the issues. But I am happy
> > to collate everything as for the x86 call and write up minutes
> > 
> > On the x86 side:
> > 
> >  - Q35 HVM emulation, adding MCFG support to guests.
> 
> One of the issues here is support for multiple external emulators w.r.t. config space access.
>
> >  - PVH guest pci-passthrough: using the internal vPCI infrastructure.
> 
> Let's not distinguish between HVM or PVH here. We want to use the same passthrough mechanisms for both.

Ideally, we'll use the same mechanism for ARM too.

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Alexey G]

On Fri, 13 Apr 2018 11:01:49 +0100
Roger Pau Monné <roger.pau@citrix.com> wrote:

>On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
>> 
>> 
>> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
>> wrote:
>> 
>>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
>> 
>>   
>>     >    may work. For me Mon, Wed and Fri’s generally work at those
>>     > time-slots. Next week is a little busy for me, so I would
>>     > prefer the following week. If you could fill out the following
>>     > Google poll, if this week works that would be great. Otherwise
>>     > please scream.  
>>     
>>     I'm afraid I'm on vacations from the 21st to the 29th of April,
>> so I won't be able to join the meeting unless we move it to the week
>> after. Let's see what people think of the current dates.
>>     
>>     Roger.
>>     
>> Hi, I changed the dates to the week after. Poll so far has been
>> invalidated.
>> 
>> See https://doodle.com/poll/gdnmcrvnibmw563n  
>
>Thanks! I've already fixed my vote.
>
>I guess this will come later, but we need a clear agenda of items
>because the x86 and ARM topics are probably going to be completely
>different (albeit all related to PCI).
>
>Roger.

1. different approaches to handle some critical chipset-specific
   registers (MCH PCIEXBAR first of all), currently emulated by
   QEMU. Role of QEMU in the emulation of MMCONFIG accesses.

2. MMIO hole sizing in general (for HVM) -- in which PT usecases this is
   needed, requirements, limitations. It is related to the emulated
   chipset-specific resources and depends on the chosen solution for #1.

I'll try to describe different possible implementations how to make the
multiple PCI device emulators feature compatible with emulated MMCONFIG
before the meeting, to have a ground for discussion. There are at least
3 possible directions currently to solve this problem.

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

Hi all,
so it seems we have no perfect slot proposals, but 2 semi-perfect.
May 2nd: 16:00 - 17:00 Christopher can't attend
May 2nd: 17:00 - 18:00 Chao can't attend
Maybe a compromise would be 16:30 to 17:30
Regards
Lars

On 21/04/2018, 05:47, "Alexey G" <x1917x@gmail.com> wrote:

    On Fri, 13 Apr 2018 11:01:49 +0100
    Roger Pau Monné <roger.pau@citrix.com> wrote:
    
    >On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
    >> 
    >> 
    >> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
    >> wrote:
    >> 
    >>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
    >> 
    >>   
    >>     >    may work. For me Mon, Wed and Fri’s generally work at those
    >>     > time-slots. Next week is a little busy for me, so I would
    >>     > prefer the following week. If you could fill out the following
    >>     > Google poll, if this week works that would be great. Otherwise
    >>     > please scream.  
    >>     
    >>     I'm afraid I'm on vacations from the 21st to the 29th of April,
    >> so I won't be able to join the meeting unless we move it to the week
    >> after. Let's see what people think of the current dates.
    >>     
    >>     Roger.
    >>     
    >> Hi, I changed the dates to the week after. Poll so far has been
    >> invalidated.
    >> 
    >> See https://doodle.com/poll/gdnmcrvnibmw563n  
    >
    >Thanks! I've already fixed my vote.
    >
    >I guess this will come later, but we need a clear agenda of items
    >because the x86 and ARM topics are probably going to be completely
    >different (albeit all related to PCI).
    >
    >Roger.
    
    1. different approaches to handle some critical chipset-specific
       registers (MCH PCIEXBAR first of all), currently emulated by
       QEMU. Role of QEMU in the emulation of MMCONFIG accesses.
    
    2. MMIO hole sizing in general (for HVM) -- in which PT usecases this is
       needed, requirements, limitations. It is related to the emulated
       chipset-specific resources and depends on the chosen solution for #1.
    
    I'll try to describe different possible implementations how to make the
    multiple PCI device emulators feature compatible with emulated MMCONFIG
    before the meeting, to have a ground for discussion. There are at least
    3 possible directions currently to solve this problem.
    

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Chao Gao]

On Mon, Apr 23, 2018 at 08:26:59AM +0000, Lars Kurth wrote:
>Hi all,
>so it seems we have no perfect slot proposals, but 2 semi-perfect.
>May 2nd: 16:00 - 17:00 Christopher can't attend
>May 2nd: 17:00 - 18:00 Chao can't attend
>Maybe a compromise would be 16:30 to 17:30

Hi Lars,

Your suggestion is fine with me. 16:00-17:00 is also acceptable to me. I
don't want Christopher can't attend the whole meeting because I am just
interested in this discussion and won't provide useful suggestions
during the discussion.

Thanks
Chao

>Regards
>Lars
>
>On 21/04/2018, 05:47, "Alexey G" <x1917x@gmail.com> wrote:
>
>    On Fri, 13 Apr 2018 11:01:49 +0100
>    Roger Pau Monné <roger.pau@citrix.com> wrote:
>    
>    >On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
>    >> 
>    >> 
>    >> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
>    >> wrote:
>    >> 
>    >>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
>    >> 
>    >>   
>    >>     >    may work. For me Mon, Wed and Fri’s generally work at those
>    >>     > time-slots. Next week is a little busy for me, so I would
>    >>     > prefer the following week. If you could fill out the following
>    >>     > Google poll, if this week works that would be great. Otherwise
>    >>     > please scream.  
>    >>     
>    >>     I'm afraid I'm on vacations from the 21st to the 29th of April,
>    >> so I won't be able to join the meeting unless we move it to the week
>    >> after. Let's see what people think of the current dates.
>    >>     
>    >>     Roger.
>    >>     
>    >> Hi, I changed the dates to the week after. Poll so far has been
>    >> invalidated.
>    >> 
>    >> See https://doodle.com/poll/gdnmcrvnibmw563n  
>    >
>    >Thanks! I've already fixed my vote.
>    >
>    >I guess this will come later, but we need a clear agenda of items
>    >because the x86 and ARM topics are probably going to be completely
>    >different (albeit all related to PCI).
>    >
>    >Roger.
>    
>    1. different approaches to handle some critical chipset-specific
>       registers (MCH PCIEXBAR first of all), currently emulated by
>       QEMU. Role of QEMU in the emulation of MMCONFIG accesses.
>    
>    2. MMIO hole sizing in general (for HVM) -- in which PT usecases this is
>       needed, requirements, limitations. It is related to the emulated
>       chipset-specific resources and depends on the chosen solution for #1.
>    
>    I'll try to describe different possible implementations how to make the
>    multiple PCI device emulators feature compatible with emulated MMCONFIG
>    before the meeting, to have a ground for discussion. There are at least
>    3 possible directions currently to solve this problem.
>    
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@lists.xenproject.org
>https://lists.xenproject.org/mailman/listinfo/xen-devel

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Chao Gao]

On Mon, Apr 23, 2018 at 10:12:22PM +0800, Chao Gao wrote:
>On Mon, Apr 23, 2018 at 08:26:59AM +0000, Lars Kurth wrote:
>>Hi all,
>>so it seems we have no perfect slot proposals, but 2 semi-perfect.
>>May 2nd: 16:00 - 17:00 Christopher can't attend
>>May 2nd: 17:00 - 18:00 Chao can't attend
>>Maybe a compromise would be 16:30 to 17:30
>
>Hi Lars,
>
>Your suggestion is fine with me. 16:00-17:00 is also acceptable to me. I

I meant 17:00-18:00 here.

Thanks
Chao

>don't want Christopher can't attend the whole meeting because I am just
>interested in this discussion and won't provide useful suggestions
>during the discussion.
>
>Thanks
>Chao
>
>>Regards
>>Lars
>>
>>On 21/04/2018, 05:47, "Alexey G" <x1917x@gmail.com> wrote:
>>
>>    On Fri, 13 Apr 2018 11:01:49 +0100
>>    Roger Pau Monné <roger.pau@citrix.com> wrote:
>>    
>>    >On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
>>    >> 
>>    >> 
>>    >> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
>>    >> wrote:
>>    >> 
>>    >>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
>>    >> 
>>    >>   
>>    >>     >    may work. For me Mon, Wed and Fri’s generally work at those
>>    >>     > time-slots. Next week is a little busy for me, so I would
>>    >>     > prefer the following week. If you could fill out the following
>>    >>     > Google poll, if this week works that would be great. Otherwise
>>    >>     > please scream.  
>>    >>     
>>    >>     I'm afraid I'm on vacations from the 21st to the 29th of April,
>>    >> so I won't be able to join the meeting unless we move it to the week
>>    >> after. Let's see what people think of the current dates.
>>    >>     
>>    >>     Roger.
>>    >>     
>>    >> Hi, I changed the dates to the week after. Poll so far has been
>>    >> invalidated.
>>    >> 
>>    >> See https://doodle.com/poll/gdnmcrvnibmw563n  
>>    >
>>    >Thanks! I've already fixed my vote.
>>    >
>>    >I guess this will come later, but we need a clear agenda of items
>>    >because the x86 and ARM topics are probably going to be completely
>>    >different (albeit all related to PCI).
>>    >
>>    >Roger.
>>    
>>    1. different approaches to handle some critical chipset-specific
>>       registers (MCH PCIEXBAR first of all), currently emulated by
>>       QEMU. Role of QEMU in the emulation of MMCONFIG accesses.
>>    
>>    2. MMIO hole sizing in general (for HVM) -- in which PT usecases this is
>>       needed, requirements, limitations. It is related to the emulated
>>       chipset-specific resources and depends on the chosen solution for #1.
>>    
>>    I'll try to describe different possible implementations how to make the
>>    multiple PCI device emulators feature compatible with emulated MMCONFIG
>>    before the meeting, to have a ground for discussion. There are at least
>>    3 possible directions currently to solve this problem.
>>    
>>
>>_______________________________________________
>>Xen-devel mailing list
>>Xen-devel@lists.xenproject.org
>>https://lists.xenproject.org/mailman/listinfo/xen-devel

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Re: Setting up a call to discuss PCI Emulation - Future Direction

[Lars Kurth]

Alright: 17:00-18:00 it is. I will send out a separate mail with call-in details
Lars

On 23/04/2018, 15:24, "Chao Gao" <chao.gao@intel.com> wrote:

    On Mon, Apr 23, 2018 at 10:12:22PM +0800, Chao Gao wrote:
    >On Mon, Apr 23, 2018 at 08:26:59AM +0000, Lars Kurth wrote:
    >>Hi all,
    >>so it seems we have no perfect slot proposals, but 2 semi-perfect.
    >>May 2nd: 16:00 - 17:00 Christopher can't attend
    >>May 2nd: 17:00 - 18:00 Chao can't attend
    >>Maybe a compromise would be 16:30 to 17:30
    >
    >Hi Lars,
    >
    >Your suggestion is fine with me. 16:00-17:00 is also acceptable to me. I
    
    I meant 17:00-18:00 here.
    
    Thanks
    Chao
    
    >don't want Christopher can't attend the whole meeting because I am just
    >interested in this discussion and won't provide useful suggestions
    >during the discussion.
    >
    >Thanks
    >Chao
    >
    >>Regards
    >>Lars
    >>
    >>On 21/04/2018, 05:47, "Alexey G" <x1917x@gmail.com> wrote:
    >>
    >>    On Fri, 13 Apr 2018 11:01:49 +0100
    >>    Roger Pau Monné <roger.pau@citrix.com> wrote:
    >>    
    >>    >On Thu, Apr 12, 2018 at 05:50:00PM +0100, Lars Kurth wrote:
    >>    >> 
    >>    >> 
    >>    >> On 12/04/2018, 17:41, "Roger Pau Monne" <roger.pau@citrix.com>
    >>    >> wrote:
    >>    >> 
    >>    >>     On Thu, Apr 12, 2018 at 05:32:57PM +0100, Lars Kurth wrote:
    >>    >> 
    >>    >>   
    >>    >>     >    may work. For me Mon, Wed and Fri’s generally work at those
    >>    >>     > time-slots. Next week is a little busy for me, so I would
    >>    >>     > prefer the following week. If you could fill out the following
    >>    >>     > Google poll, if this week works that would be great. Otherwise
    >>    >>     > please scream.  
    >>    >>     
    >>    >>     I'm afraid I'm on vacations from the 21st to the 29th of April,
    >>    >> so I won't be able to join the meeting unless we move it to the week
    >>    >> after. Let's see what people think of the current dates.
    >>    >>     
    >>    >>     Roger.
    >>    >>     
    >>    >> Hi, I changed the dates to the week after. Poll so far has been
    >>    >> invalidated.
    >>    >> 
    >>    >> See https://doodle.com/poll/gdnmcrvnibmw563n  
    >>    >
    >>    >Thanks! I've already fixed my vote.
    >>    >
    >>    >I guess this will come later, but we need a clear agenda of items
    >>    >because the x86 and ARM topics are probably going to be completely
    >>    >different (albeit all related to PCI).
    >>    >
    >>    >Roger.
    >>    
    >>    1. different approaches to handle some critical chipset-specific
    >>       registers (MCH PCIEXBAR first of all), currently emulated by
    >>       QEMU. Role of QEMU in the emulation of MMCONFIG accesses.
    >>    
    >>    2. MMIO hole sizing in general (for HVM) -- in which PT usecases this is
    >>       needed, requirements, limitations. It is related to the emulated
    >>       chipset-specific resources and depends on the chosen solution for #1.
    >>    
    >>    I'll try to describe different possible implementations how to make the
    >>    multiple PCI device emulators feature compatible with emulated MMCONFIG
    >>    before the meeting, to have a ground for discussion. There are at least
    >>    3 possible directions currently to solve this problem.
    >>    
    >>
    >>_______________________________________________
    >>Xen-devel mailing list
    >>Xen-devel@lists.xenproject.org
    >>https://lists.xenproject.org/mailman/listinfo/xen-devel
    

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