audk/OvmfPkg/Include/Library/PlatformInitLib.h

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OvmfPkg: Create initial version of PlatformInitLib BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863 There are 3 variants of PlatformPei in OvmfPkg: - OvmfPkg/PlatformPei - OvmfPkg/XenPlatformPei - OvmfPkg/Bhyve/PlatformPei/PlatformPei.inf These PlatformPeis can share many common codes, such as Cmos / Hob / Memory / Platform related functions. This commit (and its following several patches) are to create a PlatformInitLib which wraps the common code called in above PlatformPeis. In this initial version of PlatformInitLib, below Cmos related functions are introduced: - PlatformCmosRead8 - PlatformCmosWrite8 - PlatformDebugDumpCmos They correspond to the functions in OvmfPkg/PlatformPei: - CmosRead8 - CmosWrite8 - DebugDumpCmos Considering this PlatformInitLib will be used in SEC phase, global variables and dynamic PCDs are avoided. We use PlatformInfoHob to exchange information between functions. EFI_HOB_PLATFORM_INFO is the data struct which contains the platform information, such as HostBridgeDevId, BootMode, S3Supported, SmmSmramRequire, etc. After PlatformInitLib is created, OvmfPkg/PlatformPei is refactored with this library. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Erdem Aktas <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-02-12 07:06:46 +01:00
/** @file
PlatformInitLib header file.
Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef PLATFORM_INIT_LIB_H_
#define PLATFORM_INIT_LIB_H_
#include <PiPei.h>
#pragma pack(1)
typedef struct {
EFI_HOB_GUID_TYPE GuidHeader;
UINT16 HostBridgeDevId;
UINT64 PcdConfidentialComputingGuestAttr;
BOOLEAN SevEsIsEnabled;
UINT32 BootMode;
BOOLEAN S3Supported;
BOOLEAN SmmSmramRequire;
BOOLEAN Q35SmramAtDefaultSmbase;
UINT16 Q35TsegMbytes;
UINT64 FirstNonAddress;
UINT8 PhysMemAddressWidth;
UINT32 Uc32Base;
UINT32 Uc32Size;
BOOLEAN PcdSetNxForStack;
UINT64 PcdTdxSharedBitMask;
UINT64 PcdPciMmio64Base;
UINT64 PcdPciMmio64Size;
UINT32 PcdPciMmio32Base;
UINT32 PcdPciMmio32Size;
UINT64 PcdPciIoBase;
UINT64 PcdPciIoSize;
UINT64 PcdEmuVariableNvStoreReserved;
UINT32 PcdCpuBootLogicalProcessorNumber;
UINT32 PcdCpuMaxLogicalProcessorNumber;
UINT32 DefaultMaxCpuNumber;
UINT32 S3AcpiReservedMemoryBase;
UINT32 S3AcpiReservedMemorySize;
} EFI_HOB_PLATFORM_INFO;
#pragma pack()
/**
Reads 8-bits of CMOS data.
Reads the 8-bits of CMOS data at the location specified by Index.
The 8-bit read value is returned.
@param Index The CMOS location to read.
@return The value read.
**/
UINT8
EFIAPI
PlatformCmosRead8 (
IN UINTN Index
);
/**
Writes 8-bits of CMOS data.
Writes 8-bits of CMOS data to the location specified by Index
with the value specified by Value and returns Value.
@param Index The CMOS location to write.
@param Value The value to write to CMOS.
@return The value written to CMOS.
**/
UINT8
EFIAPI
PlatformCmosWrite8 (
IN UINTN Index,
IN UINT8 Value
);
/**
Dump the CMOS content
*/
VOID
EFIAPI
PlatformDebugDumpCmos (
VOID
);
VOID
EFIAPI
PlatformAddIoMemoryBaseSizeHob (
IN EFI_PHYSICAL_ADDRESS MemoryBase,
IN UINT64 MemorySize
);
VOID
EFIAPI
PlatformAddIoMemoryRangeHob (
IN EFI_PHYSICAL_ADDRESS MemoryBase,
IN EFI_PHYSICAL_ADDRESS MemoryLimit
);
VOID
EFIAPI
PlatformAddMemoryBaseSizeHob (
IN EFI_PHYSICAL_ADDRESS MemoryBase,
IN UINT64 MemorySize
);
VOID
EFIAPI
PlatformAddMemoryRangeHob (
IN EFI_PHYSICAL_ADDRESS MemoryBase,
IN EFI_PHYSICAL_ADDRESS MemoryLimit
);
VOID
EFIAPI
PlatformAddReservedMemoryBaseSizeHob (
IN EFI_PHYSICAL_ADDRESS MemoryBase,
IN UINT64 MemorySize,
IN BOOLEAN Cacheable
);
OvmfPkg: Create initial version of PlatformInitLib BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3863 There are 3 variants of PlatformPei in OvmfPkg: - OvmfPkg/PlatformPei - OvmfPkg/XenPlatformPei - OvmfPkg/Bhyve/PlatformPei/PlatformPei.inf These PlatformPeis can share many common codes, such as Cmos / Hob / Memory / Platform related functions. This commit (and its following several patches) are to create a PlatformInitLib which wraps the common code called in above PlatformPeis. In this initial version of PlatformInitLib, below Cmos related functions are introduced: - PlatformCmosRead8 - PlatformCmosWrite8 - PlatformDebugDumpCmos They correspond to the functions in OvmfPkg/PlatformPei: - CmosRead8 - CmosWrite8 - DebugDumpCmos Considering this PlatformInitLib will be used in SEC phase, global variables and dynamic PCDs are avoided. We use PlatformInfoHob to exchange information between functions. EFI_HOB_PLATFORM_INFO is the data struct which contains the platform information, such as HostBridgeDevId, BootMode, S3Supported, SmmSmramRequire, etc. After PlatformInitLib is created, OvmfPkg/PlatformPei is refactored with this library. Cc: Ard Biesheuvel <ardb+tianocore@kernel.org> Cc: Jordan Justen <jordan.l.justen@intel.com> Cc: Brijesh Singh <brijesh.singh@amd.com> Cc: Erdem Aktas <erdemaktas@google.com> Cc: James Bottomley <jejb@linux.ibm.com> Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: Tom Lendacky <thomas.lendacky@amd.com> Cc: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com> Signed-off-by: Min Xu <min.m.xu@intel.com>
2022-02-12 07:06:46 +01:00
#endif // PLATFORM_INIT_LIB_H_