arm64: KVM: Always reference __hyp_panic_string via its kernel VA

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__hyp_panic_string is passed via the HYP panic code to the panic
function, and is being "upgraded" to a kernel address, as it is
referenced by the HYP code (in a PC-relative way).

This is a bit silly, and we'd be better off obtaining the kernel
address and not mess with it at all. This patch implements this
with a tiny bit of asm glue, by forcing the string pointer to be
read from the literal pool.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>

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Marc Zyngier 2016-06-30 18:40:35 +01:00 • committed by Christoffer Dall

parent 82a81bff90

commit cf7df13d3c

1 changed files with 9 additions and 2 deletions

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arch/arm64/kvm/hyp/switch.c

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