arm64: VHE: Add support for running Linux in EL2 mode

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With ARMv8.1 VHE, the architecture is able to (almost) transparently
run the kernel at EL2, despite being written for EL1.

This patch takes care of the "almost" part, mostly preventing the kernel
from dropping from EL2 to EL1, and setting up the HYP configuration.

Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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This commit is contained in:

Marc Zyngier 2014-02-19 09:33:14 +00:00

parent ae7e27fe68

commit 1f364c8c48

2 changed files with 40 additions and 1 deletions

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13

arch/arm64/Kconfig

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28

arch/arm64/kernel/head.S

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