Archipelago » qemu

/* The hcalls above are standardized in PAPR and implemented by pHyp

 * as well.

 *

 * We also need some hcalls which are specific to qemu / KVM-on-POWER.

 * So far we just need one for H_RTAS, but in future we'll need more

 * for extensions like virtio.  We put those into the 0xf000-0xfffc

 * range which is reserved by PAPR for "platform-specific" hcalls.

 */

#define KVMPPC_HCALL_BASE       0xf000

#define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)

#define KVMPPC_HCALL_MAX        KVMPPC_H_RTAS

static inline uint32_t rtas_ld(target_ulong phys, int n)

{

    return ldl_phys(phys + 4*n);

}

static inline void rtas_st(target_ulong phys, int n, uint32_t val)

{

    stl_phys(phys + 4*n, val);

}

typedef void (*spapr_rtas_fn)(sPAPREnvironment *spapr, uint32_t token,

                              uint32_t nargs, target_ulong args,

                              uint32_t nret, target_ulong rets);

void spapr_rtas_register(const char *name, spapr_rtas_fn fn);

target_ulong spapr_rtas_call(sPAPREnvironment *spapr,

                             uint32_t token, uint32_t nargs, target_ulong args,

                             uint32_t nret, target_ulong rets);

int spapr_rtas_device_tree_setup(void *fdt, target_phys_addr_t rtas_addr,

                                 target_phys_addr_t rtas_size);