Re: [PATCH 11/12] swiotlb: merge swiotlb-xen initialization into swiotlb

Boris Ostrovsky
2022-03-02T13:15:03Z

On 3/1/22 9:55 PM, Stefano Stabellini wrote:
> On Tue, 1 Mar 2022, Christoph Hellwig wrote:
>> Allow to pass a remap argument to the swiotlb initialization functions
>> to handle the Xen/x86 remap case. ARM/ARM64 never did any remapping
>> from xen_swiotlb_fixup, so we don't even need that quirk.
>>

> Aside from that the rest looks OK. Also, you can add my:
>
> Tested-by: Stefano Stabellini <sstabellini@kernel.org>

Not for me, I fail to boot with

[ 52.202000] bnxt_en 0000:31:00.0: swiotlb buffer is full (sz: 256 bytes), total 0 (slots), used 0 (slots)

(this is iscsi root so I need the NIC).

I bisected it to "x86: remove the IOMMU table infrastructure" but haven't actually looked at the code yet.

-boris