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Ovmf/Xen: implement XenHypercallLib for ARM

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This patch adds an implementation of XenHypercallLib for both
AArch64 and AArch32 execution modes on ARM systems.

Contributed-under: TianoCore Contribution Agreement 1.0
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@16974 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Ard Biesheuvel
2015-02-28 20:33:22 +00:00
committed by lersek
parent d9fdfd851a
commit b94c3ac93d
5 changed files with 528 additions and 1 deletions
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25
OvmfPkg/Library/XenHypercallLib/Arm/Hypercall.S Normal file
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/** @file
ARM (AArch32) implementation of XenHypercall2
Copyright (C) 2014, Linaro Ltd.
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#include <IndustryStandard/Xen/arch-arm/xen.h>
.text
.global ASM_PFX(XenHypercall2)
ASM_PFX(XenHypercall2):
mov r12, r0
mov r0, r1
mov r1, r2
hvc #XEN_HYPERCALL_TAG
bx lr