qemu/pc-bios/spapr-rtas/spapr-rtas.S
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   1/*
   2 * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator
   3 *
   4 * Trivial in-partition RTAS implementation, based on a hypercall
   5 *
   6 * Copyright (c) 2010,2011 David Gibson, IBM Corporation.
   7 *
   8 * Permission is hereby granted, free of charge, to any person obtaining a copy
   9 * of this software and associated documentation files (the "Software"), to deal
  10 * in the Software without restriction, including without limitation the rights
  11 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12 * copies of the Software, and to permit persons to whom the Software is
  13 * furnished to do so, subject to the following conditions:
  14 *
  15 * The above copyright notice and this permission notice shall be included in
  16 * all copies or substantial portions of the Software.
  17 *
  18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24 * THE SOFTWARE.
  25 *
  26 */
  27
  28#define KVMPPC_HCALL_BASE       0xf000
  29#define KVMPPC_H_RTAS           (KVMPPC_HCALL_BASE + 0x0)
  30
  31.globl  _start
  32_start:
  33        mr      4,3
  34        lis     3,KVMPPC_H_RTAS@h
  35        ori     3,3,KVMPPC_H_RTAS@l
  36        sc      1
  37        blr
  38