mirror of https://github.com/acidanthera/audk.git
OvmfPkg/QemuFwCfgLib: Provide Pei and Dxe specific library
Current QemuFwCfgLib.inf is used in both Pei and Dxe phases. Add Pei and Dxe inf file to provide a seperate QemuFwCfgLib instances for Pei and Dxe phases. Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Laszlo Ersek <lersek@redhat.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Brijesh Singh <brijesh.singh@amd.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
This commit is contained in:
Brijesh Singh
Jordan Justen
parent
f9d129e68a
commit
fee47a261c
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@ -18,11 +18,11 @@
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = QemuFwCfgLib
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FILE_GUID = fdd53716-31e1-4acc-9007-8bd5d877c96f
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BASE_NAME = QemuFwCfgDxeLib
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FILE_GUID = 80474090-55e7-4c28-b25c-9f236ba41f28
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = QemuFwCfgLib|PEIM DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER
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LIBRARY_CLASS = QemuFwCfgLib|DXE_DRIVER DXE_RUNTIME_DRIVER DXE_SMM_DRIVER
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CONSTRUCTOR = QemuFwCfgInitialize
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@ -35,7 +35,7 @@
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[Sources]
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QemuFwCfgLibInternal.h
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QemuFwCfgLib.c
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QemuFwCfgPeiDxe.c
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QemuFwCfgDxe.c
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[Packages]
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MdePkg/MdePkg.dec
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@ -0,0 +1,116 @@
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/** @file
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Stateful and implicitly initialized fw_cfg library implementation.
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Copyright (C) 2013, Red Hat, Inc.
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Copyright (c) 2011 - 2013, Intel Corporation. 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 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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#include <Library/DebugLib.h>
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#include <Library/QemuFwCfgLib.h>
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#include "QemuFwCfgLibInternal.h"
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STATIC BOOLEAN mQemuFwCfgSupported = FALSE;
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STATIC BOOLEAN mQemuFwCfgDmaSupported;
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/**
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Returns a boolean indicating if the firmware configuration interface
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is available or not.
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This function may change fw_cfg state.
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@retval TRUE The interface is available
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@retval FALSE The interface is not available
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**/
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BOOLEAN
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EFIAPI
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QemuFwCfgIsAvailable (
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VOID
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)
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{
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return InternalQemuFwCfgIsAvailable ();
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}
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RETURN_STATUS
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EFIAPI
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QemuFwCfgInitialize (
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VOID
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)
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{
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UINT32 Signature;
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UINT32 Revision;
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//
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// Enable the access routines while probing to see if it is supported.
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// For probing we always use the IO Port (IoReadFifo8()) access method.
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//
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mQemuFwCfgSupported = TRUE;
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mQemuFwCfgDmaSupported = FALSE;
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QemuFwCfgSelectItem (QemuFwCfgItemSignature);
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Signature = QemuFwCfgRead32 ();
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DEBUG ((EFI_D_INFO, "FW CFG Signature: 0x%x\n", Signature));
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QemuFwCfgSelectItem (QemuFwCfgItemInterfaceVersion);
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Revision = QemuFwCfgRead32 ();
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DEBUG ((EFI_D_INFO, "FW CFG Revision: 0x%x\n", Revision));
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if ((Signature != SIGNATURE_32 ('Q', 'E', 'M', 'U')) ||
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(Revision < 1)
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) {
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DEBUG ((EFI_D_INFO, "QemuFwCfg interface not supported.\n"));
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mQemuFwCfgSupported = FALSE;
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return RETURN_SUCCESS;
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}
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if ((Revision & FW_CFG_F_DMA) == 0) {
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DEBUG ((DEBUG_INFO, "QemuFwCfg interface (IO Port) is supported.\n"));
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} else {
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mQemuFwCfgDmaSupported = TRUE;
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DEBUG ((DEBUG_INFO, "QemuFwCfg interface (DMA) is supported.\n"));
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}
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return RETURN_SUCCESS;
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}
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/**
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Returns a boolean indicating if the firmware configuration interface is
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available for library-internal purposes.
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This function never changes fw_cfg state.
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@retval TRUE The interface is available internally.
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@retval FALSE The interface is not available internally.
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**/
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BOOLEAN
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InternalQemuFwCfgIsAvailable (
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VOID
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)
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{
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return mQemuFwCfgSupported;
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}
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/**
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Returns a boolean indicating whether QEMU provides the DMA-like access method
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for fw_cfg.
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@retval TRUE The DMA-like access method is available.
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@retval FALSE The DMA-like access method is unavailable.
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**/
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BOOLEAN
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InternalQemuFwCfgDmaIsAvailable (
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VOID
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)
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{
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return mQemuFwCfgDmaSupported;
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}
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@ -0,0 +1,50 @@
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## @file
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#
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# Stateful, implicitly initialized fw_cfg library.
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#
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# Copyright (C) 2013, Red Hat, Inc.
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# Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
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# Copyright (c) 2017, AMD Incorporated. All rights reserved.<BR>
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#
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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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#
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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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##
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[Defines]
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INF_VERSION = 0x00010005
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BASE_NAME = QemuFwCfgPeiLib
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FILE_GUID = ddd4f5f0-5304-42a8-9efa-d14bf11a3533
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MODULE_TYPE = BASE
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VERSION_STRING = 1.0
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LIBRARY_CLASS = QemuFwCfgLib|PEIM
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CONSTRUCTOR = QemuFwCfgInitialize
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#
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# The following information is for reference only and not required by the build tools.
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#
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# VALID_ARCHITECTURES = IA32 X64
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#
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[Sources]
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QemuFwCfgLibInternal.h
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QemuFwCfgLib.c
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QemuFwCfgPei.c
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[Packages]
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MdePkg/MdePkg.dec
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OvmfPkg/OvmfPkg.dec
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[LibraryClasses]
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BaseLib
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BaseMemoryLib
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DebugLib
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IoLib
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MemoryAllocationLib
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@ -142,7 +142,7 @@
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DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
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UefiUsbLib|MdePkg/Library/UefiUsbLib/UefiUsbLib.inf
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SerializeVariablesLib|OvmfPkg/Library/SerializeVariablesLib/SerializeVariablesLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
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VirtioLib|OvmfPkg/Library/VirtioLib/VirtioLib.inf
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LoadLinuxLib|OvmfPkg/Library/LoadLinuxLib/LoadLinuxLib.inf
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MemEncryptSevLib|OvmfPkg/Library/BaseMemEncryptSevLib/BaseMemEncryptSevLib.inf
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@ -260,6 +260,7 @@
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MpInitLib|UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
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QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/PeiQemuFwCfgS3LibFwCfg.inf
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PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf
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[LibraryClasses.common.DXE_CORE]
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HobLib|MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
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@ -147,7 +147,7 @@
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DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
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UefiUsbLib|MdePkg/Library/UefiUsbLib/UefiUsbLib.inf
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SerializeVariablesLib|OvmfPkg/Library/SerializeVariablesLib/SerializeVariablesLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
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VirtioLib|OvmfPkg/Library/VirtioLib/VirtioLib.inf
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LoadLinuxLib|OvmfPkg/Library/LoadLinuxLib/LoadLinuxLib.inf
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MemEncryptSevLib|OvmfPkg/Library/BaseMemEncryptSevLib/BaseMemEncryptSevLib.inf
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@ -265,6 +265,7 @@
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MpInitLib|UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
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QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/PeiQemuFwCfgS3LibFwCfg.inf
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PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf
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[LibraryClasses.common.DXE_CORE]
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HobLib|MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
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@ -147,7 +147,7 @@
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DpcLib|MdeModulePkg/Library/DxeDpcLib/DxeDpcLib.inf
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UefiUsbLib|MdePkg/Library/UefiUsbLib/UefiUsbLib.inf
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SerializeVariablesLib|OvmfPkg/Library/SerializeVariablesLib/SerializeVariablesLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgDxeLib.inf
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VirtioLib|OvmfPkg/Library/VirtioLib/VirtioLib.inf
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LoadLinuxLib|OvmfPkg/Library/LoadLinuxLib/LoadLinuxLib.inf
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MemEncryptSevLib|OvmfPkg/Library/BaseMemEncryptSevLib/BaseMemEncryptSevLib.inf
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@ -265,6 +265,7 @@
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MpInitLib|UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf
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QemuFwCfgS3Lib|OvmfPkg/Library/QemuFwCfgS3Lib/PeiQemuFwCfgS3LibFwCfg.inf
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PcdLib|MdePkg/Library/PeiPcdLib/PeiPcdLib.inf
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QemuFwCfgLib|OvmfPkg/Library/QemuFwCfgLib/QemuFwCfgPeiLib.inf
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[LibraryClasses.common.DXE_CORE]
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HobLib|MdePkg/Library/DxeCoreHobLib/DxeCoreHobLib.inf
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