2 Jul
2026
2 Jul
'26
9:20 a.m.
On Wed, Jul 01, 2026 at 06:08:15PM +0200, Thierry Reding wrote:
From: Chun Ng chunn@nvidia.com
Add helpers to swap PROT_NORMAL and PROT_DEVICE_nGnRnE protection bits on a kernel-linear-map range.
That sounds like a really terrible idea. Why is this necessary and how does it interact with things like load_unaligned_zeropad()?
I think you should unmap the memory from the linear map and memremap() it instead.
Will