My believe is that this bug can be closed. We have tested QEMU 1.4.x and
1.5.x series (with pci-assign) and at least these works fine.
** Changed in: qemu
Status: New => Fix Released
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Just a silly questions, because I don't know the deveploment process in
QEMU project -- can be your patches commited into project's VCS so that
new stable release contains them and doesn't fail again? Thank you!
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Confirmed, third patch for legacy pci-assign enables only 4 vectors on
host and guest. Mellanox IB works for me fine as well. Thanks!
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https://bugs.launchpad.net/bugs/1091766
Title:
Ph
On Wed, Dec 19, 2012 at 5:46 PM, Alex Williamson
wrote:
> You're right, I'm thinking of MSI where lspci reports x/y vectors. The
> only way I know to get this is to grep /proc/interrupts on host and
> guest. Look for kvm or vfio in the host and likely some device specific
> identifier in the gue
On Wed, Dec 19, 2012 at 4:31 PM, Alex Williamson
wrote:
> So you likely see through lspci that both the guest and host have 4
> vectors enabled.
Maybe you'll have to kick me on how to find this data. If I look on
lspci output, I find only this relevant thing:
Capabilities: [9c] MSI-X: Ena
Both patches against qemu 1.3 *works*, first with traditional PCI
pass., second with VFIO. Mellanox IB card in guest works fine again.
Great early Christmas present, thank you!
Just FYI: between both ways I can see little difference on host system
regarding the numbers of IRQs for MSI/MSI-X:
* VF
Public bug reported:
(from http://permalink.gmane.org/gmane.comp.emulators.kvm.devel/100736)
We have been using PCI passthrough with the Mellanox IB interface
(MT27500 Family [ConnectX-3]) on Debian 6.0.6, kernel 3.2.23 and
qemu-kvm-1.0 (both from backports). It worked fine until latest
update in
