H_VMALLOC_START
BUILD_BUG_ON(NON_LINEAR_REGION_ID(H_VMALLOC_START) != 2);
#define H_VMALLOC_END (H_VMALLOC_START + H_VMALLOC_SIZE)
#define VMALLOC_REGION_ID NON_LINEAR_REGION_ID(H_VMALLOC_START)
if (end >= H_VMALLOC_START) {
if ((base + size) >= H_VMALLOC_START) {
__vmalloc_start = H_VMALLOC_START;