arm64: kexec: relocate in EL1 mode

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Since we are going to keep MMU enabled during relocation, we need to
keep EL1 mode throughout the relocation.

Keep EL1 enabled, and switch EL2 only before entering the new world.

Suggested-by: James Morse <james.morse@arm.com>
Signed-off-by: Pasha Tatashin <pasha.tatashin@soleen.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210930143113.1502553-10-pasha.tatashin@soleen.com
Signed-off-by: Will Deacon <will@kernel.org>

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Pasha Tatashin 2021-09-30 14:31:07 +00:00 • committed by Will Deacon

parent 08eae0ef61

commit ba959fe96a

3 changed files with 14 additions and 6 deletions

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3

arch/arm64/kernel/cpu-reset.h

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4

arch/arm64/kernel/machine_kexec.c

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13

arch/arm64/kernel/relocate_kernel.S

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