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
   9#include "qom/object.h"
  10#include "exec/address-spaces.h"
  11#include "exec/memory.h"
  12#include "cpu.h"
  13
  14typedef struct Vof {
  15    uint64_t top_addr; /* copied from rma_size */
  16    GArray *claimed; /* array of SpaprOfClaimed */
  17    uint64_t claimed_base;
  18    GHashTable *of_instances; /* ihandle -> SpaprOfInstance */
  19    uint32_t of_instance_last;
  20    char *bootargs;
  21    long fw_size;
  22} Vof;
  23
  24int vof_client_call(MachineState *ms, Vof *vof, void *fdt,
  25                    target_ulong args_real);
  26uint64_t vof_claim(Vof *vof, uint64_t virt, uint64_t size, uint64_t align);
  27void vof_init(Vof *vof, uint64_t top_addr, Error **errp);
  28void vof_cleanup(Vof *vof);
  29void vof_build_dt(void *fdt, Vof *vof);
  30uint32_t vof_client_open_store(void *fdt, Vof *vof, const char *nodename,
  31                               const char *prop, const char *path);
  32
  33#define TYPE_VOF_MACHINE_IF "vof-machine-if"
  34
  35typedef struct VofMachineIfClass VofMachineIfClass;
  36DECLARE_CLASS_CHECKERS(VofMachineIfClass, VOF_MACHINE, TYPE_VOF_MACHINE_IF)
  37
  38struct VofMachineIfClass {
  39    InterfaceClass parent;
  40    target_ulong (*client_architecture_support)(MachineState *ms, CPUState *cs,
  41                                                target_ulong vec);
  42    void (*quiesce)(MachineState *ms);
  43    bool (*setprop)(MachineState *ms, const char *path, const char *propname,
  44                    void *val, int vallen);
  45};
  46
  47/*
  48 * Initial stack size is from
  49 * https://www.devicetree.org/open-firmware/bindings/ppc/release/ppc-2_1.html#REF27292
  50 *
  51 * "Client programs shall be invoked with a valid stack pointer (r1) with
  52 * at least 32K bytes of memory available for stack growth".
  53 */
  54#define VOF_STACK_SIZE       0x8000
  55
  56#define VOF_MEM_READ(pa, buf, size) \
  57    address_space_read(&address_space_memory, \
  58    (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
  59#define VOF_MEM_WRITE(pa, buf, size) \
  60    address_space_write(&address_space_memory, \
  61    (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
  62
  63#define PROM_ERROR          (~0U)
  64
  65#endif /* HW_VOF_H */
  66