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Tasklist

FS#79348 - Add a new kernel config with less strict memory access

Attached to Project: Arch Linux
Opened by Adam (adam900710) - Friday, 11 August 2023, 11:44 GMT
Last edited by Toolybird (Toolybird) - Friday, 11 August 2023, 21:05 GMT
Task Type Feature Request
Category Kernel
Status Closed
Assigned To No-one
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

Currently the CONFIG_STRICT_DEVMEM is limiting tools like RyzenAdj to dump its pm-table.

This is causing some extra headache for guys to tweak the latest hardware, as one has to recompile the kernel package to disable that option.
I checked both `linux` and `linux-zen`, both has enabled that config.

Additional info:
* package version(s) linux 6.4.9.arch1-1
* config and/or log files etc.
* link to upstream bug report, if any

Steps to reproduce:

Just check the config `CONFIG_STRICT_DEVMEM` of recent kernels.
This task depends upon

Closed by  Toolybird (Toolybird)
Friday, 11 August 2023, 21:05 GMT
Reason for closing:  Won't implement
Additional comments about closing:  See comments
Comment by Toolybird (Toolybird) - Friday, 11 August 2023, 21:05 GMT
Lessen kernel security for everyone because of some Ryzen mobile specific tool? Sorry, cannot see this happening (kernel PM's notified).

It sounds like the kernel needs an interface to provide secure access to whatever it is that is needed for this tool to function properly, but that's out of scope here. There are plenty of special purpose kernels in the AUR...so that might be your best option.

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