Re: updated: kvm PCI todo wiki

2013-08-22 Thread Nicholas A. Bellinger
On Wed, 2013-08-21 at 14:45 +0200, Hannes Reinecke wrote:
 On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:
  Hey guys,
  I've put up a wiki page with a kvm PCI todo list,
  mainly to avoid effort duplication, but also in the hope
  to draw attention to what I think we should try addressing
  in KVM:
 
  http://www.linux-kvm.org/page/PCITodo
 
  This page could cover all PCI related activity in KVM,
  it is very incomplete.
  We should probably add e.g. IOMMU related stuff.
 
  Note: if there's no developer listed for an item,
  this just means I don't know of anyone actively working
  on an issue at the moment, not that no one intends to.
 
  I would appreciate it if others working on one of the items on this list
  would add their names so we can communicate better.  If others like this
  wiki page, please go ahead and add stuff you are working on if any.
 
  It would be especially nice to add testing projects.
 
  Also, feel free to add links to bugzillas items.
 
 On a related note, did anyone ever tried to test MSI / MSI-X with a 
 windows guest? I've tried to enable it for virtio but for some reason 
 Windows didn't wanted to enable it. AHCI was even worse; the stock 
 Windows version doesn't support MSI and the Intel one doesn't like our 
 implementation :-(.
 
 Anyone ever managed to get this to work?
 
 If not it'd be a good topic for the wiki ...
 

Speaking of which, I asked Asias about this recently and he seems to
think that virtio-net + virtio-blk drivers for MSFT do in fact support
MSI /MSI-X.

MST, do you know if that that true..?

--nab

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Re: updated: kvm PCI todo wiki

2013-08-22 Thread Michael S. Tsirkin
On Thu, Aug 22, 2013 at 01:29:34AM -0700, Nicholas A. Bellinger wrote:
 On Wed, 2013-08-21 at 14:45 +0200, Hannes Reinecke wrote:
  On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:
   Hey guys,
   I've put up a wiki page with a kvm PCI todo list,
   mainly to avoid effort duplication, but also in the hope
   to draw attention to what I think we should try addressing
   in KVM:
  
   http://www.linux-kvm.org/page/PCITodo
  
   This page could cover all PCI related activity in KVM,
   it is very incomplete.
   We should probably add e.g. IOMMU related stuff.
  
   Note: if there's no developer listed for an item,
   this just means I don't know of anyone actively working
   on an issue at the moment, not that no one intends to.
  
   I would appreciate it if others working on one of the items on this list
   would add their names so we can communicate better.  If others like this
   wiki page, please go ahead and add stuff you are working on if any.
  
   It would be especially nice to add testing projects.
  
   Also, feel free to add links to bugzillas items.
  
  On a related note, did anyone ever tried to test MSI / MSI-X with a 
  windows guest? I've tried to enable it for virtio but for some reason 
  Windows didn't wanted to enable it. AHCI was even worse; the stock 
  Windows version doesn't support MSI and the Intel one doesn't like our 
  implementation :-(.
  
  Anyone ever managed to get this to work?
  
  If not it'd be a good topic for the wiki ...
  
 
 Speaking of which, I asked Asias about this recently and he seems to
 think that virtio-net + virtio-blk drivers for MSFT do in fact support
 MSI /MSI-X.
 
 MST, do you know if that that true..?
 
 --nab

Yes, they do for modern windows versions.

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Re: updated: kvm PCI todo wiki

2013-08-21 Thread Hannes Reinecke

On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:

Hey guys,
I've put up a wiki page with a kvm PCI todo list,
mainly to avoid effort duplication, but also in the hope
to draw attention to what I think we should try addressing
in KVM:

http://www.linux-kvm.org/page/PCITodo

This page could cover all PCI related activity in KVM,
it is very incomplete.
We should probably add e.g. IOMMU related stuff.

Note: if there's no developer listed for an item,
this just means I don't know of anyone actively working
on an issue at the moment, not that no one intends to.

I would appreciate it if others working on one of the items on this list
would add their names so we can communicate better.  If others like this
wiki page, please go ahead and add stuff you are working on if any.

It would be especially nice to add testing projects.

Also, feel free to add links to bugzillas items.

On a related note, did anyone ever tried to test MSI / MSI-X with a 
windows guest? I've tried to enable it for virtio but for some reason 
Windows didn't wanted to enable it. AHCI was even worse; the stock 
Windows version doesn't support MSI and the Intel one doesn't like our 
implementation :-(.


Anyone ever managed to get this to work?

If not it'd be a good topic for the wiki ...

Cheers,

Hannes
--
Dr. Hannes Reinecke   zSeries  Storage
h...@suse.de  +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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Re: updated: kvm PCI todo wiki

2013-08-21 Thread Vadim Rozenfeld
On Wed, 2013-08-21 at 14:45 +0200, Hannes Reinecke wrote:
 On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:
  Hey guys,
  I've put up a wiki page with a kvm PCI todo list,
  mainly to avoid effort duplication, but also in the hope
  to draw attention to what I think we should try addressing
  in KVM:
 
  http://www.linux-kvm.org/page/PCITodo
 
  This page could cover all PCI related activity in KVM,
  it is very incomplete.
  We should probably add e.g. IOMMU related stuff.
 
  Note: if there's no developer listed for an item,
  this just means I don't know of anyone actively working
  on an issue at the moment, not that no one intends to.
 
  I would appreciate it if others working on one of the items on this list
  would add their names so we can communicate better.  If others like this
  wiki page, please go ahead and add stuff you are working on if any.
 
  It would be especially nice to add testing projects.
 
  Also, feel free to add links to bugzillas items.
 
 On a related note, did anyone ever tried to test MSI / MSI-X with a 
 windows guest? I've tried to enable it for virtio but for some reason

MSI-X is a default mode for NetKvm and viostor on Vista and forward.
It must work. Just make sure that CPU family is 0xf or higher, otherwise
Windows will not activate MSI-X.
Vadim.
 
  
 Windows didn't wanted to enable it. AHCI was even worse; the stock 
 Windows version doesn't support MSI and the Intel one doesn't like our 
 implementation :-(.
 
 Anyone ever managed to get this to work?
 
 If not it'd be a good topic for the wiki ...
 
 Cheers,
 
 Hannes


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Re: updated: kvm PCI todo wiki

2013-08-21 Thread Michael S. Tsirkin
On Wed, Aug 21, 2013 at 02:45:36PM +0200, Hannes Reinecke wrote:
 On 08/21/2013 12:48 PM, Michael S. Tsirkin wrote:
 Hey guys,
 I've put up a wiki page with a kvm PCI todo list,
 mainly to avoid effort duplication, but also in the hope
 to draw attention to what I think we should try addressing
 in KVM:
 
 http://www.linux-kvm.org/page/PCITodo
 
 This page could cover all PCI related activity in KVM,
 it is very incomplete.
 We should probably add e.g. IOMMU related stuff.
 
 Note: if there's no developer listed for an item,
 this just means I don't know of anyone actively working
 on an issue at the moment, not that no one intends to.
 
 I would appreciate it if others working on one of the items on this list
 would add their names so we can communicate better.  If others like this
 wiki page, please go ahead and add stuff you are working on if any.
 
 It would be especially nice to add testing projects.
 
 Also, feel free to add links to bugzillas items.
 
 On a related note, did anyone ever tried to test MSI / MSI-X with a
 windows guest? I've tried to enable it for virtio but for some
 reason Windows didn't wanted to enable it. AHCI was even worse; the
 stock Windows version doesn't support MSI and the Intel one doesn't
 like our implementation :-(.
 Anyone ever managed to get this to work?
 
 If not it'd be a good topic for the wiki ...
 
 Cheers,
 
 Hannes

I put some AHCI - related things there: making intel's
AHCI driver work with QEMU would be nice - e.g.
for windows XP guests. It might also help uncover some bugs.

 -- 
 Dr. Hannes Reinecke zSeries  Storage
 h...@suse.de+49 911 74053 688
 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
 GF: J. Hawn, J. Guild, F. Imendörffer, HRB 16746 (AG Nürnberg)
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