../arch/arm64/kvm/../../../virt/kvm/kvm_main.c: In function ‘__kvm_map_gfn’:
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1764:9: error: implicit declaration of function ‘memremap’; did you mean ‘memcmp’? [-Werror=implicit-function-declaration]
   hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
         ^~~~~~~~
         memcmp
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1764:46: error: ‘MEMREMAP_WB’ undeclared (first use in this function)
   hva = memremap(pfn_to_hpa(pfn), PAGE_SIZE, MEMREMAP_WB);
                                              ^~~~~~~~~~~
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1764:46: note: each undeclared identifier is reported only once for each function it appears in
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c: In function ‘kvm_vcpu_unmap’:
../arch/arm64/kvm/../../../virt/kvm/kvm_main.c:1796:3: error: implicit declaration of function ‘memunmap’; did you mean ‘vm_munmap’? [-Werror=implicit-function-declaration]
   memunmap(map->hva);
   ^~~~~~~~
   vm_munmap
cc1: some warnings being treated as errors
make[2]: *** [../scripts/Makefile.build:279: arch/arm64/kvm/../../../virt/kvm/kvm_main.o] Error 1
make[2]: Target '__build' not remade because of errors.
make[1]: *** [/home/anders/src/kernel/next/Makefile:1071: arch/arm64/kvm] Error 2