ARM: KVM: change kvm_tlb_flush_vmid to kvm_tlb_flush_vmid_ipa

v8 is capable of invalidating Stage-2 by IPA, but v7 is not.
Change kvm_tlb_flush_vmid() to take an IPA parameter, which is
then ignored by the invalidation code (and nuke the whole TLB
as it always did).

This allows v8 to implement a more optimized strategy.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
diff --git a/arch/arm/include/asm/kvm_asm.h b/arch/arm/include/asm/kvm_asm.h
index e4956f4..18d5032 100644
--- a/arch/arm/include/asm/kvm_asm.h
+++ b/arch/arm/include/asm/kvm_asm.h
@@ -75,7 +75,7 @@
 extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
 
 extern void __kvm_flush_vm_context(void);
-extern void __kvm_tlb_flush_vmid(struct kvm *kvm);
+extern void __kvm_tlb_flush_vmid_ipa(struct kvm *kvm, phys_addr_t ipa);
 
 extern int __kvm_vcpu_run(struct kvm_vcpu *vcpu);
 #endif