arm64: head: Run feature override detection before mapping the kernel

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To permit the feature overrides to be taken into account before the
KASLR init code runs and the kernel mapping is created, move the
detection code to an earlier stage in the boot.

In a subsequent patch, this will be taken advantage of by merging the
preliminary and permanent mappings of the kernel text and data into a
single one that gets created and relocated before start_kernel() is
called.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20240214122845.2033971-53-ardb+git@google.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

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Ard Biesheuvel 2024-02-14 13:28:54 +01:00 • committed by Catalin Marinas

parent 30687dec5e

commit dcfe969a64

2 changed files with 10 additions and 11 deletions

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17

arch/arm64/kernel/head.S

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4

arch/arm64/kernel/vmlinux.lds.S

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