f70b071e2f
This library class will enable driver modules (a) to query whether S3 support was enabled on the QEMU command line, (b) to produce fw_cfg DMA operations that are to be replayed at S3 resume time. Declare the library class in OvmfPkg/OvmfPkg.dec, and add the library class header under OvmfPkg/Include/Library/. At the moment, the only API we expose is QemuFwCfgS3Enabled(), which we'll first migrate from QemuFwCfgLib. Further interfaces will be added in later patches. Cc: Jordan Justen <jordan.l.justen@intel.com> Ref: https://bugzilla.tianocore.org/show_bug.cgi?id=394 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>
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/** @file
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S3 support for QEMU fw_cfg
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This library class enables driver modules (a) to query whether S3 support was
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enabled on the QEMU command line, (b) to produce fw_cfg DMA operations that
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are to be replayed at S3 resume time.
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Copyright (C) 2017, Red Hat, Inc.
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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 which 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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#ifndef __FW_CFG_S3_LIB__
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#define __FW_CFG_S3_LIB__
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/**
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Determine if S3 support is explicitly enabled.
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@retval TRUE If S3 support is explicitly enabled. Other functions in this
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library may be called (subject to their individual
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restrictions).
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FALSE Otherwise. This includes unavailability of the firmware
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configuration interface. No other function in this library
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must be called.
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**/
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BOOLEAN
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EFIAPI
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QemuFwCfgS3Enabled (
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VOID
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);
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#endif
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