Archipelago » qemu

#include "sysemu.h"

#include "cpu.h"

#include "qemu-char.h"

#include "hw/spapr.h"

spapr_hcall_fn hypercall_table[(MAX_HCALL_OPCODE / 4) + 1];

void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn)

{

    spapr_hcall_fn old_fn;

    assert(opcode <= MAX_HCALL_OPCODE);

    assert((opcode & 0x3) == 0);

    old_fn = hypercall_table[opcode / 4];

    assert(!old_fn || (fn == old_fn));

    hypercall_table[opcode / 4] = fn;

}

target_ulong spapr_hypercall(CPUState *env, target_ulong opcode,

                             target_ulong *args)

{

    if (msr_pr) {

        hcall_dprintf("Hypercall made with MSR[PR]=1\n");

        return H_PRIVILEGE;

    }

    if ((opcode <= MAX_HCALL_OPCODE)

        && ((opcode & 0x3) == 0)) {

        spapr_hcall_fn fn = hypercall_table[opcode / 4];

        if (fn) {

            return fn(env, spapr, opcode, args);

        }

    }

    hcall_dprintf("Unimplemented hcall 0x" TARGET_FMT_lx "\n", opcode);

    return H_FUNCTION;

}