#include <mach_kdp.h>
#include <mach/vm_param.h>
#include <arm64/lowglobals.h>
#include <vm/vm_object.h>
#include <vm/vm_page.h>
extern vm_offset_t vm_kernel_stext;
extern void *version;
extern void *kmod;
extern void *kdp_trans_off;
extern void *osversion;
extern void *flag_kdp_trigger_reboot;
extern void *manual_pkt;
extern struct vm_object pmap_object_store;
lowglo lowGlo __attribute__ ((aligned(PAGE_MAX_SIZE))) = {
.lgLayoutMajorVersion = 3,
.lgLayoutMinorVersion = 2,
.lgLayoutMagic = LOWGLO_LAYOUT_MAGIC,
.lgVerCode = { 'K', 'r', 'a', 'k', 'e', 'n', ' ', ' ' },
.lgZero = 0,
.lgStext = 0, .lgVersion = (uint64_t) &version,
.lgOSVersion = (uint64_t) &osversion,
.lgKmodptr = (uint64_t) &kmod,
#if MACH_KDP && CONFIG_KDP_INTERACTIVE_DEBUGGING
.lgTransOff = (uint64_t) &kdp_trans_off,
.lgRebootFlag = (uint64_t) &flag_kdp_trigger_reboot,
.lgManualPktAddr = (uint64_t) &manual_pkt,
#endif
.lgPmapMemQ = (uint64_t)&(pmap_object_store.memq),
.lgPmapMemPageOffset = offsetof(struct vm_page_with_ppnum, vmp_phys_page),
.lgPmapMemChainOffset = offsetof(struct vm_page, vmp_listq),
.lgPmapMemPagesize = (uint64_t)sizeof(struct vm_page),
.lgPmapMemFromArrayMask = VM_PAGE_PACKED_FROM_ARRAY,
.lgPmapMemPackedShift = VM_PAGE_PACKED_PTR_SHIFT,
.lgPmapMemPackedBaseAddr = VM_PAGE_PACKED_PTR_BASE,
.lgPmapMemStartAddr = -1,
.lgPmapMemEndAddr = -1,
.lgPmapMemFirstppnum = -1,
.lgPageShift = ARM_PGSHIFT,
.lgVmFirstPhys = -1,
.lgVmLastPhys = -1,
.lgPhysMapBase = -1,
.lgPhysMapEnd = -1,
.lgPmapIoRangePtr = -1,
.lgNumPmapIoRanges = -1
};
void
patch_low_glo(void)
{
lowGlo.lgStext = (uint64_t)vm_kernel_stext;
}
void
patch_low_glo_static_region(uint64_t address, uint64_t size)
{
lowGlo.lgStaticAddr = address;
lowGlo.lgStaticSize = size;
extern const pmap_paddr_t vm_first_phys;
extern const pmap_paddr_t vm_last_phys;
assertf((vm_first_phys != 0) && (vm_last_phys != 0),
"Tried setting the Low Globals before pmap_bootstrap()");
lowGlo.lgVmFirstPhys = vm_first_phys;
lowGlo.lgVmLastPhys = vm_last_phys;
typedef struct pmap_io_range pmap_io_range_t;
extern const pmap_io_range_t* io_attr_table;
extern const unsigned int num_io_rgns;
lowGlo.lgPmapIoRangePtr = (uint64_t)io_attr_table;
lowGlo.lgNumPmapIoRanges = (uint64_t)num_io_rgns;
extern const vm_map_address_t physmap_base;
extern const vm_map_address_t physmap_end;
assertf((physmap_base != 0) && (physmap_end != 0),
"Tried setting the Low Globals before arm_vm_init()");
lowGlo.lgPhysMapBase = physmap_base;
lowGlo.lgPhysMapEnd = physmap_end;
}
void
patch_low_glo_vm_page_info(void * start_addr, void * end_addr, uint32_t first_ppnum)
{
lowGlo.lgPmapMemStartAddr = (uint64_t)start_addr;
lowGlo.lgPmapMemEndAddr = (uint64_t)end_addr;
lowGlo.lgPmapMemFirstppnum = first_ppnum;
lowGlo.lgPageShift = PAGE_SHIFT;
}