lunaix-os/arch/x86/hart.c

   1 #include <lunaix/hart_state.h>
   2 #include <lunaix/mm/vmm.h>
   3 #include <klibc/string.h>
   4
   5 #include <asm/mempart.h>
   6
   7 bool
   8 install_hart_transition(ptr_t vm_mnt, struct hart_transition* ht)
   9 {
  10     pte_t pte;
  11     if (!vmm_lookupat(vm_mnt, ht->inject, &pte)) {
  12         return false;
  13     }
  14
  15     mount_page(PG_MOUNT_4, pte_paddr(pte));
  16
  17     ptr_t mount_inject = PG_MOUNT_4 + va_offset(ht->inject);
  18     memcpy((void*)mount_inject, &ht->transfer, sizeof(ht->transfer));
  19
  20     unmount_page(PG_MOUNT_4);
  21     return true;
  22 }