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SubjectRe: Report in downstream Debian: mpt3sas broken with xen dom0 with update to 5.10.149 in 5.10.y.
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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