xen/arm and xen/arm64: implement HYPERVISOR_tmem_op

Signed-off-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

arch/arm/include/asm/xen/hypercall.h

@@ -47,6 +47,7 @@ unsigned long HYPERVISOR_hvm_op(int op, void *arg);
 int HYPERVISOR_memory_op(unsigned int cmd, void *arg);
 int HYPERVISOR_physdev_op(int cmd, void *arg);
 int HYPERVISOR_vcpu_op(int cmd, int vcpuid, void *extra_args);
+int HYPERVISOR_tmem_op(void *arg);
 
 static inline void
 MULTI_update_va_mapping(struct multicall_entry *mcl, unsigned long va,

arch/arm/xen/enlighten.c

@@ -314,4 +314,5 @@ EXPORT_SYMBOL_GPL(HYPERVISOR_hvm_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_memory_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_physdev_op);
 EXPORT_SYMBOL_GPL(HYPERVISOR_vcpu_op);
+EXPORT_SYMBOL_GPL(HYPERVISOR_tmem_op);
 EXPORT_SYMBOL_GPL(privcmd_call);

arch/arm/xen/hypercall.S

@@ -88,6 +88,7 @@ HYPERCALL2(hvm_op);
 HYPERCALL2(memory_op);
 HYPERCALL2(physdev_op);
 HYPERCALL3(vcpu_op);
+HYPERCALL1(tmem_op);
 
 ENTRY(privcmd_call)
 	stmdb sp!, {r4}

arch/arm64/xen/hypercall.S

@@ -79,6 +79,7 @@ HYPERCALL2(hvm_op);
 HYPERCALL2(memory_op);
 HYPERCALL2(physdev_op);
 HYPERCALL3(vcpu_op);
+HYPERCALL1(tmem_op);
 
 ENTRY(privcmd_call)
 	mov x16, x0