contrib/elf2dmp/addrspace.h

   1 /*
   2  * Copyright (c) 2018 Virtuozzo International GmbH
   3  *
   4  * This work is licensed under the terms of the GNU GPL, version 2 or later.
   5  *
   6  */
   7
   8 #ifndef ADDRSPACE_H
   9 #define ADDRSPACE_H
  10
  11 #include "qemu_elf.h"
  12
  13 #define ELF2DMP_PAGE_BITS 12
  14 #define ELF2DMP_PAGE_SIZE (1ULL << ELF2DMP_PAGE_BITS)
  15 #define ELF2DMP_PAGE_MASK (ELF2DMP_PAGE_SIZE - 1)
  16 #define ELF2DMP_PFN_MASK (~(ELF2DMP_PAGE_SIZE - 1))
  17
  18 #define INVALID_PA  UINT64_MAX
  19
  20 struct pa_block {
  21     uint8_t *addr;
  22     uint64_t paddr;
  23     uint64_t size;
  24 };
  25
  26 struct pa_space {
  27     size_t block_nr;
  28     struct pa_block *block;
  29 };
  30
  31 struct va_space {
  32     uint64_t dtb;
  33     struct pa_space *ps;
  34 };
  35
  36 int pa_space_create(struct pa_space *ps, QEMU_Elf *qemu_elf);
  37 void pa_space_destroy(struct pa_space *ps);
  38
  39 void va_space_create(struct va_space *vs, struct pa_space *ps, uint64_t dtb);
  40 void va_space_set_dtb(struct va_space *vs, uint64_t dtb);
  41 void *va_space_resolve(struct va_space *vs, uint64_t va);
  42 int va_space_rw(struct va_space *vs, uint64_t addr,
  43         void *buf, size_t size, int is_write);
  44
  45 #endif /* ADDRSPACE_H */