Re: [PATCH v2 0/2] ACPI / PCI: Fix _PRT lookup for ARI enabled devices

From: Bjorn Helgaas
Date: Fri May 29 2015 - 18:19:06 EST

On Tue, May 26, 2015 at 03:11:38PM -0600, Alex Williamson wrote:
> v2: don't modify entry->id.device
> In most cases we only use ARI with SR-IOV VFs, which do not support
> INTx and therefore never hit this problem. However, some non-SR-IOV
> implementations create multiple PFs, extending beyond the standard
> 3-bit function numbers with ARI, and do support INTx for those
> additional functions. This can happen with Solarflare SFC9120
> adapters. The host driver typically doesn't use INTx, so we also
> haven't noticed this problem on bare metal, but when we attempt to
> assign the device to a VM using vfio-pci, we fail trying to setup
> default INTx signaling. Thanks,
> Alex
> ---
> Alex Williamson (2):
> PCI: Move pci_ari_enabled() to global header
> ACPI / PCI: Account for ARI in _PRT lookups

Rafael, do you want this or should I take it?

I put it on my pci/virtualization branch for v4.2. If you want it, let me
know and I'll drop it and you can add my:

Acked-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
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