KVM: constify kvm_arch_flush_remote_tlbs_memslot

memslots are stored in RCU and there should be no need to
change them.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

arch/arm64/kvm/arm.c

@@ -1270,7 +1270,7 @@ void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot)
 }
 
 void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
-					struct kvm_memory_slot *memslot)
+					const struct kvm_memory_slot *memslot)
 {
 	kvm_flush_remote_tlbs(kvm);
 }

arch/mips/kvm/mips.c

@@ -997,7 +997,7 @@ void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot)
 }
 
 void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
-					struct kvm_memory_slot *memslot)
+					const struct kvm_memory_slot *memslot)
 {
 	/* Let implementation handle TLB/GVA invalidation */
 	kvm_mips_callbacks->flush_shadow_memslot(kvm, memslot);

arch/x86/kvm/mmu/mmu.c

@@ -5638,7 +5638,7 @@ void kvm_mmu_zap_collapsible_sptes(struct kvm *kvm,
 }
 
 void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
-					struct kvm_memory_slot *memslot)
+					const struct kvm_memory_slot *memslot)
 {
 	/*
 	 * All current use cases for flushing the TLBs for a specific memslot

include/linux/kvm_host.h

@@ -894,7 +894,7 @@ void kvm_arch_sync_dirty_log(struct kvm *kvm, struct kvm_memory_slot *memslot);
 
 #ifdef CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT
 void kvm_arch_flush_remote_tlbs_memslot(struct kvm *kvm,
-					struct kvm_memory_slot *memslot);
+					const struct kvm_memory_slot *memslot);
 #else /* !CONFIG_KVM_GENERIC_DIRTYLOG_READ_PROTECT */
 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log);
 int kvm_get_dirty_log(struct kvm *kvm, struct kvm_dirty_log *log,