Re: [PATCH v10 04/13] iommu/arm-smmu-v3: Disable the EVTQ and the PRIQ in a kdump kernel

On Sun, 30 Aug 2026 16:18:05 -0700, Nicolin Chen [off-list ref] wrote:

A kdump kernel cannot use either queue. The crashed kernel's CDs and page
tables might be corrupted, so events would spam the EVTQ, and there is no
way to serve the page requests that would arrive at the PRIQ.

The reset routine still enables both of the queues and then masks the two
enable bits back out, having already programmed the queue bases and taken
the interrupts of both.

[...]

Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>

-- 
Jason