Re: [PATCH v1 13/24] kvm: arm64: Add CPU entry point in nVHE hyp

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On 2020-11-16 11:49, David Brazdil wrote:
>  #ifdef CONFIG_CPU_PM
>    DEFINE(CPU_CTX_SP,		offsetof(struct cpu_suspend_ctx, sp));
> diff --git a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
> b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
> index 1697d25756e9..f999a35b2c8c 100644
> --- a/arch/arm64/kvm/hyp/nvhe/hyp-init.S
> +++ b/arch/arm64/kvm/hyp/nvhe/hyp-init.S
> @@ -6,6 +6,7 @@
>
>  #include <linux/arm-smccc.h>
>  #include <linux/linkage.h>
> +#include <linux/irqchip/arm-gic-v3.h>

This should probably be included from the file that provides init_el2_state.

Agreed. This is a workaround for the fact that the arm-gic* headers don't play
nice with each other (define the same constants).

Ah, that...

Including arm-gic-v3.h in
kvm_asm.h will trigger macro redefine warnings in vgic*-v2.c because they
include arm-gic.h.

Boo.

Another option is to create a header just for el2 init. Would that be
preferable? Other ideas?

Having an asm/el2_setup.h file feels like a better option. After all, it
is in no way KVM specific, and having the macros hanging around in
asm/kvm_asm.h feels odd.

        M.
--
Jazz is not dead. It just smells funny...
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