Ovmf/Xen: implement XenHypercallLib for ARM
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
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OvmfPkg/Library/XenHypercallLib/Arm/Hypercall.S
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OvmfPkg/Library/XenHypercallLib/Arm/Hypercall.S
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/** @file
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ARM (AArch32) implementation of XenHypercall2
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Copyright (C) 2014, Linaro Ltd.
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This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <IndustryStandard/Xen/arch-arm/xen.h>
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.text
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.global ASM_PFX(XenHypercall2)
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ASM_PFX(XenHypercall2):
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mov r12, r0
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mov r0, r1
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mov r1, r2
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hvc #XEN_HYPERCALL_TAG
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bx lr
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