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root / hw / spapr_hcall.c @ 9fdf0c29

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#include "sysemu.h"
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#include "cpu.h"
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#include "qemu-char.h"
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#include "hw/spapr.h"
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spapr_hcall_fn hypercall_table[(MAX_HCALL_OPCODE / 4) + 1];
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void spapr_register_hypercall(target_ulong opcode, spapr_hcall_fn fn)
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{
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    spapr_hcall_fn old_fn;
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    assert(opcode <= MAX_HCALL_OPCODE);
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    assert((opcode & 0x3) == 0);
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    old_fn = hypercall_table[opcode / 4];
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    assert(!old_fn || (fn == old_fn));
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    hypercall_table[opcode / 4] = fn;
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}
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target_ulong spapr_hypercall(CPUState *env, target_ulong opcode,
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                             target_ulong *args)
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{
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    if (msr_pr) {
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        hcall_dprintf("Hypercall made with MSR[PR]=1\n");
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        return H_PRIVILEGE;
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    }
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    if ((opcode <= MAX_HCALL_OPCODE)
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        && ((opcode & 0x3) == 0)) {
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        spapr_hcall_fn fn = hypercall_table[opcode / 4];
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        if (fn) {
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            return fn(env, spapr, opcode, args);
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        }
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    }
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    hcall_dprintf("Unimplemented hcall 0x" TARGET_FMT_lx "\n", opcode);
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    return H_FUNCTION;
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}