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