VMEMMAP_START      56 arch/arm64/include/asm/memory.h #define VMEMMAP_START		(-VMEMMAP_SIZE - SZ_2M)
VMEMMAP_START     101 arch/riscv/include/asm/pgtable.h #define VMEMMAP_START	(VMALLOC_START - VMEMMAP_SIZE)
VMEMMAP_START     135 arch/x86/include/asm/pgtable_64_types.h # define VMEMMAP_START		vmemmap_base
VMEMMAP_START     139 arch/x86/include/asm/pgtable_64_types.h # define VMEMMAP_START		__VMEMMAP_BASE_L4