KERN_VIRT_START 287 arch/powerpc/include/asm/book3s/64/pgtable.h #define KERN_VIRT_START __kernel_virt_start KERN_VIRT_START 28 arch/powerpc/include/asm/nohash/64/pgtable.h #define KERN_VIRT_START ASM_CONST(0x8000000000000000)