LXR qemu/include/hw/ppc/vof.h

   1/*
   2 * Virtual Open Firmware
   3 *
   4 * SPDX-License-Identifier: GPL-2.0-or-later
   5 */
   6#ifndef HW_VOF_H
   7#define HW_VOF_H
   8
   9typedef struct Vof {
  10    uint64_t top_addr; /* copied from rma_size */
  11    GArray *claimed; /* array of SpaprOfClaimed */
  12    uint64_t claimed_base;
  13    GHashTable *of_instances; /* ihandle -> SpaprOfInstance */
  14    uint32_t of_instance_last;
  15    char *bootargs;
  16    long fw_size;
  17} Vof;
  18
  19int vof_client_call(MachineState *ms, Vof *vof, void *fdt,
  20                    target_ulong args_real);
  21uint64_t vof_claim(Vof *vof, uint64_t virt, uint64_t size, uint64_t align);
  22void vof_init(Vof *vof, uint64_t top_addr, Error **errp);
  23void vof_cleanup(Vof *vof);
  24void vof_build_dt(void *fdt, Vof *vof);
  25uint32_t vof_client_open_store(void *fdt, Vof *vof, const char *nodename,
  26                               const char *prop, const char *path);
  27
  28#define TYPE_VOF_MACHINE_IF "vof-machine-if"
  29
  30typedef struct VofMachineIfClass VofMachineIfClass;
  31DECLARE_CLASS_CHECKERS(VofMachineIfClass, VOF_MACHINE, TYPE_VOF_MACHINE_IF)
  32
  33struct VofMachineIfClass {
  34    InterfaceClass parent;
  35    target_ulong (*client_architecture_support)(MachineState *ms, CPUState *cs,
  36                                                target_ulong vec);
  37    void (*quiesce)(MachineState *ms);
  38    bool (*setprop)(MachineState *ms, const char *path, const char *propname,
  39                    void *val, int vallen);
  40};
  41
  42/*
  43 * Initial stack size is from
  44 * https://www.devicetree.org/open-firmware/bindings/ppc/release/ppc-2_1.html#REF27292
  45 *
  46 * "Client programs shall be invoked with a valid stack pointer (r1) with
  47 * at least 32K bytes of memory available for stack growth".
  48 */
  49#define VOF_STACK_SIZE       0x8000
  50
  51#define VOF_MEM_READ(pa, buf, size) \
  52    address_space_read(&address_space_memory, \
  53    (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
  54#define VOF_MEM_WRITE(pa, buf, size) \
  55    address_space_write(&address_space_memory, \
  56    (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
  57
  58#define PROM_ERROR          (~0U)
  59
  60#endif /* HW_VOF_H */
  61