OvmfPkg/Library/XenHypercallLib/Arm/Hypercall.S

   1 /** @file
   2   ARM (AArch32) implementation of XenHypercall2
   3
   4   Copyright (C) 2014, Linaro Ltd.
   5
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include <IndustryStandard/Xen/arch-arm/xen.h>
  17
  18   .text
  19 GCC_ASM_EXPORT(XenHypercall2)
  20
  21 ASM_PFX(XenHypercall2):
  22   mov     r12, r0
  23   mov     r0, r1
  24   mov     r1, r2
  25   hvc     #XEN_HYPERCALL_TAG
  26   bx      lr