vm_layout
struct vm_layout __bootdata_preserved(vm_layout);
extern struct vm_layout vm_layout;
#define __kaslr_offset vm_layout.kaslr_offset
#define __kaslr_offset_phys vm_layout.kaslr_offset_phys
#define __identity_base vm_layout.identity_base
#define ident_map_size vm_layout.identity_size
struct vm_layout __bootdata_preserved(vm_layout);
EXPORT_SYMBOL(vm_layout);