Re: [PATCH 1/2] KVM: x86/mmu: Make HVA handler retpoline-friendly

[Paolo Bonzini <pbonzini@xxxxxxxxxx>]

On 01/02/21 09:13, Maciej S. Szmigiero wrote:
>   static int kvm_handle_hva_range(struct kvm *kvm,
>   				unsigned long start,
>   				unsigned long end,
> @@ -1495,8 +1534,9 @@ static int kvm_handle_hva_range(struct kvm *kvm,


> -static int kvm_tdp_mmu_handle_hva_range(struct kvm *kvm, unsigned long start,
> -		unsigned long end, unsigned long data,
> -		int (*handler)(struct kvm *kvm, struct kvm_memory_slot *slot,
> -			       struct kvm_mmu_page *root, gfn_t start,
> -			       gfn_t end, unsigned long data))
> -{

Can you look into just marking these functions __always_inline?  This 
should help the compiler change (*handler)(...) into a regular function 
call.

Paolo