Re: [PATCH v4 5/5] arm64: errata: Add newer ARM cores to the spectre_bhb_loop_affected() lists

[James Morse]

Hi Doug,

On 07/01/2025 20:06, Douglas Anderson wrote:
> When comparing to the ARM list [1], it appears that several ARM cores
> were missing from the lists in spectre_bhb_loop_affected(). Add them.

It's a moving target!


> NOTE: for some of these cores it may not matter since other ways of
> clearing the BHB may be used (like the CLRBHB instruction or ECBHB),
> but it still seems good to have all the info from ARM's whitepaper
> included.
> 
> [1] https://developer.arm.com/Arm%20Security%20Center/Spectre-BHB
> 
> 
> Fixes: 558c303c9734 ("arm64: Mitigate spectre style branch history side channels")
> Cc: stable@xxxxxxxxxxxxxxx

Reviewed-by: James Morse <james.morse@xxxxxxx>


Thanks!

James