Re: [PATCH v2] arm64: fix cleared E0POE bit after cpu_suspend()/resume()

On Wed, 07 Jan 2026 16:21:15 +0000, Yeoreum Yun wrote:

TCR2_ELx.E0POE is set during smp_init(). However, this bit is not reprogrammed when the CPU enters suspension and later resumes via cpu_resume(), as __cpu_setup() does not re-enable E0POE and there is no save/restore logic for the TCR2_ELx system register.

As a result, the E0POE feature no longer works after cpu_resume().

[...]

Applied to arm64 (for-next/fixes), thanks!

[1/1] arm64: fix cleared E0POE bit after cpu_suspend()/resume() https://git.kernel.org/arm64/c/bdf3f4176092