Re: [PATCH 11/12] swiotlb: merge swiotlb-xen initialization into swiotlb
From: Christoph Hellwig <hch@lst.de>
Date: 2022-03-04 17:30:31
Also in:
linux-arm-kernel, linux-hyperv, linux-iommu, linux-mips, linux-pci, linux-riscv, linux-s390, xen-devel
On Wed, Mar 02, 2022 at 08:15:03AM -0500, Boris Ostrovsky wrote:
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.
That looks like the swiotlb buffer did not get initialized at all, but I can't really explain why. Can you stick in a printk and see if xen_swiotlb_init_early gets called at all?