arch/x86/kernel/setup.c:1251: undefined reference to `efi_mem_type'
ld: arch/x86/kernel/setup.c:987: undefined reference to `efi_init'
ld: arch/x86/kernel/setup.c:971: undefined reference to `efi_memblock_x86_reserve_range'
arch/x86/kernel/cpu/mshyperv.c:496: undefined reference to `isolation_type_tdx'
ld: arch/x86/kernel/cpu/mshyperv.c:494: undefined reference to `isolation_type_snp'
arch/x86/kernel/kvm.c:600: undefined reference to `efi'
ld: arch/x86/kernel/kvm.c:600: undefined reference to `efi'
drivers/acpi/osl.c:210: undefined reference to `efi'
ld: drivers/acpi/osl.c:210: undefined reference to `efi'