02f69a25f0
Similarly to QemuFwCfgLib, we prefer mellow library construction code and an explicit "are you available" query function in the XenHypercallLib class. In this step we introduce that query function, but move no client code to it yet. Suggested-by: Jordan Justen <jordan.l.justen@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17000 6f19259b-4bc3-4df7-8a09-765794883524
45 lines
1.1 KiB
C
45 lines
1.1 KiB
C
/** @file
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Xen Hypercall Library implementation for ARM architecture
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Copyright (C) 2015, Red Hat, Inc.
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Copyright (c) 2014, Linaro Ltd. All rights reserved.<BR>
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This program and the accompanying materials are licensed and made available
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under the terms and conditions of the BSD License that accompanies this
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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, WITHOUT
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WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include <Base.h>
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/**
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Check if the Xen Hypercall library is able to make calls to the Xen
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hypervisor.
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Client code should call further functions in this library only if, and after,
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this function returns TRUE.
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@retval TRUE Hypercalls are available.
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@retval FALSE Hypercalls are not available.
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**/
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BOOLEAN
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EFIAPI
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XenHypercallIsAvailable (
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VOID
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)
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{
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return TRUE;
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}
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RETURN_STATUS
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EFIAPI
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XenHypercallLibInit (
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VOID
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)
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{
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return RETURN_SUCCESS;
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}
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