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/*
* Virtual Open Firmware
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef HW_VOF_H
#define HW_VOF_H
#include "qom/object.h"
#include "exec/address-spaces.h"
#include "exec/memory.h"
#include "exec/cpu-defs.h"
typedef struct Vof {
uint64_t top_addr; /* copied from rma_size */
GArray *claimed; /* array of SpaprOfClaimed */
uint64_t claimed_base;
GHashTable *of_instances; /* ihandle -> SpaprOfInstance */
uint32_t of_instance_last;
char *bootargs;
long fw_size;
} Vof;
int vof_client_call(MachineState *ms, Vof *vof, void *fdt,
target_ulong args_real);
uint64_t vof_claim(Vof *vof, uint64_t virt, uint64_t size, uint64_t align);
void vof_init(Vof *vof, uint64_t top_addr, Error **errp);
void vof_cleanup(Vof *vof);
void vof_build_dt(void *fdt, Vof *vof);
uint32_t vof_client_open_store(void *fdt, Vof *vof, const char *nodename,
const char *prop, const char *path);
#define TYPE_VOF_MACHINE_IF "vof-machine-if"
typedef struct VofMachineIfClass VofMachineIfClass;
DECLARE_CLASS_CHECKERS(VofMachineIfClass, VOF_MACHINE, TYPE_VOF_MACHINE_IF)
struct VofMachineIfClass {
InterfaceClass parent;
target_ulong (*client_architecture_support)(MachineState *ms, CPUState *cs,
target_ulong vec);
void (*quiesce)(MachineState *ms);
bool (*setprop)(MachineState *ms, const char *path, const char *propname,
void *val, int vallen);
};
/*
* Initial stack size is from
* https://www.devicetree.org/open-firmware/bindings/ppc/release/ppc-2_1.html#REF27292
*
* "Client programs shall be invoked with a valid stack pointer (r1) with
* at least 32K bytes of memory available for stack growth".
*/
#define VOF_STACK_SIZE 0x8000
#define VOF_MEM_READ(pa, buf, size) \
address_space_read(&address_space_memory, \
(pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
#define VOF_MEM_WRITE(pa, buf, size) \
address_space_write(&address_space_memory, \
(pa), MEMTXATTRS_UNSPECIFIED, (buf), (size))
#define PROM_ERROR (~0U)
#endif /* HW_VOF_H */
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