arm64: KVM: Switch vgic save/restore to alternative_insn

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So far, we configured the world-switch by having a small array
of pointers to the save and restore functions, depending on the
GIC used on the platform.

Loading these values each time is a bit silly (they never change),
and it makes sense to rely on the instruction patching instead.

This leads to a nice cleanup of the code.

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

...

This commit is contained in:

Marc Zyngier 2015-06-12 12:06:37 +01:00 • committed by Catalin Marinas

parent 94a9e04aa1

commit 8a14849b4a

6 changed files with 4 additions and 51 deletions

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5

arch/arm/include/asm/kvm_host.h

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arch/arm64/include/asm/kvm_asm.h

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23

arch/arm64/include/asm/kvm_host.h

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arch/arm64/kernel/asm-offsets.c

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arch/arm64/kvm/hyp.S

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virt/kvm/arm/vgic.c

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