Re: [PATCH 0/9] pci-assign: 64bit MMIO + better MSI-X table support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On 2012-01-28 15:21, Alex Williamson wrote:
> Patch 1 & 2 here are independent of the rest, but I include them
> here to avoid conflicts.  The first patch enables exposing MMIO
> BARs as their native width to the guest.  I added a config option
> for this with the default to use the existing behavior as I
> suspect we may have some latent issues there.  Patch 2 is just
> some trivial debug build warning fixes.
> 
> The rest of the patches work on improving MSI-X table support.
> Particularly, vectors can now be updated by the guest after
> MSI-X is enabled to support things like irqbalance for SMP
> affinity tuning.  We also now update MSI-X configuration as
> new vectors are unmasked, which enables assignment of MSI-X
> devices on FreeBSD.  I was able to assign and use an 82576
> (PF & VF) on a FreeBSD 9.0 guest with this series.  Hopefully
> Shashidhar can report whether this improves the behavior he
> as seeing with an 82599.
> 
> I wasn't able to get masking to work reliably, so I left that
> as is for now.  Perhaps someone has suggestions on getting that
> to work.  Thanks,

Unless it's urging, let's focus on getting this implemented via the
MSI/MSI-X core, not widely duplicated in device-assignment.

Jan

-- 
Siemens AG, Corporate Technology, CT T DE IT 1
Corporate Competence Center Embedded Linux
--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux