On 3/1/22 9:55 PM, Stefano Stabellini wrote:

On Tue, 1 Mar 2022, Christoph Hellwig wrote:

quoted

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