Messages in this thread | | | Date | Mon, 24 Oct 2022 09:58:40 -0700 | From | Christoph Hellwig <> | Subject | Re: Report in downstream Debian: mpt3sas broken with xen dom0 with update to 5.10.149 in 5.10.y. |
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On Mon, Oct 24, 2022 at 03:20:43PM +0200, Juergen Gross wrote: > Dom0 is (normally) a PV domain, so the physical memory can be still above > 4 GB even with dom0_mem set to 4GB.
Which means that we need to ensure the DMA ops for Xen-PV (which is always xen-swiotlb I think?) need to return DMA_BIT_MASK(64) or whatever is the highest possible address.
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