e91797885a
It is the second step for https://bugzilla.tianocore.org/show_bug.cgi?id=540. V2: Use error handling instead of ASSERT for FIT table checking result. Cc: Jiewen Yao <jiewen.yao@intel.com> Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Star Zeng <star.zeng@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
506 lines
25 KiB
C
506 lines
25 KiB
C
/** @file
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Microcode update header file.
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Copyright (c) 2016 - 2018, Intel Corporation. All rights reserved.<BR>
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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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#ifndef _MICROCODE_FMP_H_
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#define _MICROCODE_FMP_H_
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#include <PiDxe.h>
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#include <Guid/SystemResourceTable.h>
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#include <Guid/MicrocodeFmp.h>
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#include <IndustryStandard/FirmwareInterfaceTable.h>
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#include <Protocol/FirmwareManagement.h>
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#include <Protocol/MpService.h>
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#include <Library/BaseLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/DebugLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/PcdLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiLib.h>
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#include <Library/UefiRuntimeServicesTableLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/DevicePathLib.h>
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#include <Library/HobLib.h>
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#include <Library/MicrocodeFlashAccessLib.h>
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#include <Register/Cpuid.h>
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#include <Register/Msr.h>
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#include <Register/Microcode.h>
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#define MICROCODE_FMP_PRIVATE_DATA_SIGNATURE SIGNATURE_32('M', 'C', 'U', 'F')
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//
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// Microcode FMP private data structure.
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//
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typedef struct {
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UINT32 LastAttemptVersion;
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UINT32 LastAttemptStatus;
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} MICROCODE_FMP_LAST_ATTEMPT_VARIABLE;
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typedef struct {
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CPU_MICROCODE_HEADER *MicrocodeEntryPoint;
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UINTN TotalSize;
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BOOLEAN InUse;
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} MICROCODE_INFO;
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typedef struct {
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CPU_MICROCODE_HEADER *MicrocodeEntryPoint;
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UINTN TotalSize;
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BOOLEAN InUse;
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BOOLEAN Empty;
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} FIT_MICROCODE_INFO;
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typedef struct {
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UINTN CpuIndex;
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UINT32 ProcessorSignature;
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UINT8 PlatformId;
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UINT32 MicrocodeRevision;
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UINTN MicrocodeIndex;
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} PROCESSOR_INFO;
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typedef struct {
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UINT64 Address;
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UINT32 Revision;
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} MICROCODE_LOAD_BUFFER;
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struct _MICROCODE_FMP_PRIVATE_DATA {
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UINT32 Signature;
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EFI_FIRMWARE_MANAGEMENT_PROTOCOL Fmp;
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EFI_HANDLE Handle;
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VOID *MicrocodePatchAddress;
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UINTN MicrocodePatchRegionSize;
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UINT8 DescriptorCount;
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EFI_FIRMWARE_IMAGE_DESCRIPTOR *ImageDescriptor;
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MICROCODE_INFO *MicrocodeInfo;
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UINT32 PackageVersion;
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CHAR16 *PackageVersionName;
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MICROCODE_FMP_LAST_ATTEMPT_VARIABLE LastAttempt;
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EFI_MP_SERVICES_PROTOCOL *MpService;
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UINTN BspIndex;
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UINTN ProcessorCount;
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PROCESSOR_INFO *ProcessorInfo;
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UINT32 FitMicrocodeEntryCount;
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FIT_MICROCODE_INFO *FitMicrocodeInfo;
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};
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typedef struct _MICROCODE_FMP_PRIVATE_DATA MICROCODE_FMP_PRIVATE_DATA;
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#define MICROCODE_FMP_LAST_ATTEMPT_VARIABLE_NAME L"MicrocodeLastAttemptVar"
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/**
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Returns a pointer to the MICROCODE_FMP_PRIVATE_DATA structure from the input a as Fmp.
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If the signatures matches, then a pointer to the data structure that contains
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a specified field of that data structure is returned.
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@param a Pointer to the field specified by ServiceBinding within
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a data structure of type MICROCODE_FMP_PRIVATE_DATA.
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**/
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#define MICROCODE_FMP_PRIVATE_DATA_FROM_FMP(a) \
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CR ( \
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(a), \
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MICROCODE_FMP_PRIVATE_DATA, \
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Fmp, \
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MICROCODE_FMP_PRIVATE_DATA_SIGNATURE \
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)
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/**
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Get Microcode Region.
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@param[out] MicrocodePatchAddress The address of Microcode
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@param[out] MicrocodePatchRegionSize The region size of Microcode
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@retval TRUE The Microcode region is returned.
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@retval FALSE No Microcode region.
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**/
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BOOLEAN
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GetMicrocodeRegion (
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OUT VOID **MicrocodePatchAddress,
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OUT UINTN *MicrocodePatchRegionSize
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);
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/**
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Collect processor information.
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The function prototype for invoking a function on an Application Processor.
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@param[in,out] Buffer The pointer to private data buffer.
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**/
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VOID
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EFIAPI
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CollectProcessorInfo (
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IN OUT VOID *Buffer
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);
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/**
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Get current Microcode information.
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The ProcessorInformation (BspIndex/ProcessorCount/ProcessorInfo)
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in MicrocodeFmpPrivate must be initialized.
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The MicrocodeInformation (DescriptorCount/ImageDescriptor/MicrocodeInfo)
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in MicrocodeFmpPrivate may not be avaiable in this function.
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@param[in] MicrocodeFmpPrivate The Microcode driver private data
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@param[in] DescriptorCount The count of Microcode ImageDescriptor allocated.
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@param[out] ImageDescriptor Microcode ImageDescriptor
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@param[out] MicrocodeInfo Microcode information
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@return Microcode count
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**/
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UINTN
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GetMicrocodeInfo (
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IN MICROCODE_FMP_PRIVATE_DATA *MicrocodeFmpPrivate,
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IN UINTN DescriptorCount, OPTIONAL
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OUT EFI_FIRMWARE_IMAGE_DESCRIPTOR *ImageDescriptor, OPTIONAL
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OUT MICROCODE_INFO *MicrocodeInfo OPTIONAL
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);
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/**
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Verify Microcode.
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Caution: This function may receive untrusted input.
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@param[in] MicrocodeFmpPrivate The Microcode driver private data
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@param[in] Image The Microcode image buffer.
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@param[in] ImageSize The size of Microcode image buffer in bytes.
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@param[in] TryLoad Try to load Microcode or not.
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@param[out] LastAttemptStatus The last attempt status, which will be recorded in ESRT and FMP EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] AbortReason A pointer to a pointer to a null-terminated string providing more
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details for the aborted operation. The buffer is allocated by this function
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with AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@param[in, out] TargetCpuIndex On input, the index of target CPU which tries to match the Microcode. (UINTN)-1 means to try all.
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On output, the index of target CPU which matches the Microcode.
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@retval EFI_SUCCESS The Microcode image passes verification.
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@retval EFI_VOLUME_CORRUPTED The Microcode image is corrupt.
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@retval EFI_INCOMPATIBLE_VERSION The Microcode image version is incorrect.
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@retval EFI_UNSUPPORTED The Microcode ProcessorSignature or ProcessorFlags is incorrect.
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@retval EFI_SECURITY_VIOLATION The Microcode image fails to load.
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**/
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EFI_STATUS
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VerifyMicrocode (
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IN MICROCODE_FMP_PRIVATE_DATA *MicrocodeFmpPrivate,
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IN VOID *Image,
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IN UINTN ImageSize,
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IN BOOLEAN TryLoad,
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OUT UINT32 *LastAttemptStatus,
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OUT CHAR16 **AbortReason, OPTIONAL
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IN OUT UINTN *TargetCpuIndex OPTIONAL
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);
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/**
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Write Microcode.
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@param[in] MicrocodeFmpPrivate The Microcode driver private data
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@param[in] Image The Microcode image buffer.
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@param[in] ImageSize The size of Microcode image buffer in bytes.
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@param[out] LastAttemptVersion The last attempt version, which will be recorded in ESRT and FMP EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] LastAttemptStatus The last attempt status, which will be recorded in ESRT and FMP EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] AbortReason A pointer to a pointer to a null-terminated string providing more
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details for the aborted operation. The buffer is allocated by this function
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with AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@retval EFI_SUCCESS The Microcode image is written.
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@retval EFI_VOLUME_CORRUPTED The Microcode image is corrupt.
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@retval EFI_INCOMPATIBLE_VERSION The Microcode image version is incorrect.
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@retval EFI_SECURITY_VIOLATION The Microcode image fails to load.
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@retval EFI_WRITE_PROTECTED The flash device is read only.
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**/
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EFI_STATUS
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MicrocodeWrite (
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IN MICROCODE_FMP_PRIVATE_DATA *MicrocodeFmpPrivate,
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IN VOID *Image,
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IN UINTN ImageSize,
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OUT UINT32 *LastAttemptVersion,
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OUT UINT32 *LastAttemptStatus,
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OUT CHAR16 **AbortReason
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);
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/**
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Dump private information.
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@param[in] MicrocodeFmpPrivate private data structure.
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**/
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VOID
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DumpPrivateInfo (
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IN MICROCODE_FMP_PRIVATE_DATA *MicrocodeFmpPrivate
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);
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/**
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Returns information about the current firmware image(s) of the device.
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This function allows a copy of the current firmware image to be created and saved.
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The saved copy could later been used, for example, in firmware image recovery or rollback.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in, out] ImageInfoSize A pointer to the size, in bytes, of the ImageInfo buffer.
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On input, this is the size of the buffer allocated by the caller.
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On output, it is the size of the buffer returned by the firmware
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if the buffer was large enough, or the size of the buffer needed
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to contain the image(s) information if the buffer was too small.
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@param[in, out] ImageInfo A pointer to the buffer in which firmware places the current image(s)
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information. The information is an array of EFI_FIRMWARE_IMAGE_DESCRIPTORs.
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@param[out] DescriptorVersion A pointer to the location in which firmware returns the version number
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associated with the EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] DescriptorCount A pointer to the location in which firmware returns the number of
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descriptors or firmware images within this device.
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@param[out] DescriptorSize A pointer to the location in which firmware returns the size, in bytes,
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of an individual EFI_FIRMWARE_IMAGE_DESCRIPTOR.
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@param[out] PackageVersion A version number that represents all the firmware images in the device.
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The format is vendor specific and new version must have a greater value
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than the old version. If PackageVersion is not supported, the value is
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0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version comparison
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is to be performed using PackageVersionName. A value of 0xFFFFFFFD indicates
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that package version update is in progress.
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@param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing the
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package version name. The buffer is allocated by this function with
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AllocatePool(), and it is the caller's responsibility to free it with a call
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to FreePool().
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_BUFFER_TOO_SMALL The ImageInfo buffer was too small. The current buffer size
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needed to hold the image(s) information is returned in ImageInfoSize.
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@retval EFI_INVALID_PARAMETER ImageInfoSize is NULL.
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@retval EFI_DEVICE_ERROR Valid information could not be returned. Possible corrupted image.
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**/
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EFI_STATUS
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EFIAPI
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FmpGetImageInfo (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN OUT UINTN *ImageInfoSize,
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IN OUT EFI_FIRMWARE_IMAGE_DESCRIPTOR *ImageInfo,
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OUT UINT32 *DescriptorVersion,
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OUT UINT8 *DescriptorCount,
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OUT UINTN *DescriptorSize,
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OUT UINT32 *PackageVersion,
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OUT CHAR16 **PackageVersionName
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);
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/**
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Retrieves a copy of the current firmware image of the device.
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This function allows a copy of the current firmware image to be created and saved.
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The saved copy could later been used, for example, in firmware image recovery or rollback.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in,out] Image Points to the buffer where the current image is copied to.
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@param[in,out] ImageSize On entry, points to the size of the buffer pointed to by Image, in bytes.
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On return, points to the length of the image, in bytes.
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_BUFFER_TOO_SMALL The buffer specified by ImageSize is too small to hold the
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image. The current buffer size needed to hold the image is returned
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in ImageSize.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_NOT_FOUND The current image is not copied to the buffer.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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FmpGetImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN OUT VOID *Image,
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IN OUT UINTN *ImageSize
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);
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/**
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Updates the firmware image of the device.
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This function updates the hardware with the new firmware image.
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This function returns EFI_UNSUPPORTED if the firmware image is not updatable.
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If the firmware image is updatable, the function should perform the following minimal validations
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before proceeding to do the firmware image update.
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- Validate the image authentication if image has attribute
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IMAGE_ATTRIBUTE_AUTHENTICATION_REQUIRED. The function returns
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EFI_SECURITY_VIOLATION if the validation fails.
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- Validate the image is a supported image for this device. The function returns EFI_ABORTED if
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the image is unsupported. The function can optionally provide more detailed information on
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why the image is not a supported image.
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- Validate the data from VendorCode if not null. Image validation must be performed before
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VendorCode data validation. VendorCode data is ignored or considered invalid if image
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validation failed. The function returns EFI_ABORTED if the data is invalid.
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VendorCode enables vendor to implement vendor-specific firmware image update policy. Null if
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the caller did not specify the policy or use the default policy. As an example, vendor can implement
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a policy to allow an option to force a firmware image update when the abort reason is due to the new
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firmware image version is older than the current firmware image version or bad image checksum.
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Sensitive operations such as those wiping the entire firmware image and render the device to be
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non-functional should be encoded in the image itself rather than passed with the VendorCode.
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AbortReason enables vendor to have the option to provide a more detailed description of the abort
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reason to the caller.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in] Image Points to the new image.
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@param[in] ImageSize Size of the new image in bytes.
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@param[in] VendorCode This enables vendor to implement vendor-specific firmware image update policy.
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Null indicates the caller did not specify the policy or use the default policy.
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@param[in] Progress A function used by the driver to report the progress of the firmware update.
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@param[out] AbortReason A pointer to a pointer to a null-terminated string providing more
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details for the aborted operation. The buffer is allocated by this function
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with AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@retval EFI_SUCCESS The device was successfully updated with the new image.
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@retval EFI_ABORTED The operation is aborted.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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FmpSetImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN CONST VOID *Image,
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IN UINTN ImageSize,
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IN CONST VOID *VendorCode,
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IN EFI_FIRMWARE_MANAGEMENT_UPDATE_IMAGE_PROGRESS Progress,
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OUT CHAR16 **AbortReason
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);
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/**
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Checks if the firmware image is valid for the device.
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This function allows firmware update application to validate the firmware image without
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invoking the SetImage() first.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[in] ImageIndex A unique number identifying the firmware image(s) within the device.
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The number is between 1 and DescriptorCount.
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@param[in] Image Points to the new image.
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@param[in] ImageSize Size of the new image in bytes.
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@param[out] ImageUpdatable Indicates if the new image is valid for update. It also provides,
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if available, additional information if the image is invalid.
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@retval EFI_SUCCESS The image was successfully checked.
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@retval EFI_INVALID_PARAMETER The Image was NULL.
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@retval EFI_UNSUPPORTED The operation is not supported.
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@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
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**/
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EFI_STATUS
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EFIAPI
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FmpCheckImage (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
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IN UINT8 ImageIndex,
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IN CONST VOID *Image,
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IN UINTN ImageSize,
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OUT UINT32 *ImageUpdatable
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);
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/**
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Returns information about the firmware package.
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This function returns package information.
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@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
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@param[out] PackageVersion A version number that represents all the firmware images in the device.
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The format is vendor specific and new version must have a greater value
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than the old version. If PackageVersion is not supported, the value is
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0xFFFFFFFF. A value of 0xFFFFFFFE indicates that package version
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comparison is to be performed using PackageVersionName. A value of
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0xFFFFFFFD indicates that package version update is in progress.
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@param[out] PackageVersionName A pointer to a pointer to a null-terminated string representing
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the package version name. The buffer is allocated by this function with
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AllocatePool(), and it is the caller's responsibility to free it with a
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call to FreePool().
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@param[out] PackageVersionNameMaxLen The maximum length of package version name if device supports update of
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package version name. A value of 0 indicates the device does not support
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update of package version name. Length is the number of Unicode characters,
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including the terminating null character.
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@param[out] AttributesSupported Package attributes that are supported by this device. See 'Package Attribute
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Definitions' for possible returned values of this parameter. A value of 1
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indicates the attribute is supported and the current setting value is
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indicated in AttributesSetting. A value of 0 indicates the attribute is not
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supported and the current setting value in AttributesSetting is meaningless.
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@param[out] AttributesSetting Package attributes. See 'Package Attribute Definitions' for possible returned
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values of this parameter
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@retval EFI_SUCCESS The package information was successfully returned.
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@retval EFI_UNSUPPORTED The operation is not supported.
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**/
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EFI_STATUS
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EFIAPI
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FmpGetPackageInfo (
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IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
|
|
OUT UINT32 *PackageVersion,
|
|
OUT CHAR16 **PackageVersionName,
|
|
OUT UINT32 *PackageVersionNameMaxLen,
|
|
OUT UINT64 *AttributesSupported,
|
|
OUT UINT64 *AttributesSetting
|
|
);
|
|
|
|
/**
|
|
Updates information about the firmware package.
|
|
|
|
This function updates package information.
|
|
This function returns EFI_UNSUPPORTED if the package information is not updatable.
|
|
VendorCode enables vendor to implement vendor-specific package information update policy.
|
|
Null if the caller did not specify this policy or use the default policy.
|
|
|
|
@param[in] This A pointer to the EFI_FIRMWARE_MANAGEMENT_PROTOCOL instance.
|
|
@param[in] Image Points to the authentication image.
|
|
Null if authentication is not required.
|
|
@param[in] ImageSize Size of the authentication image in bytes.
|
|
0 if authentication is not required.
|
|
@param[in] VendorCode This enables vendor to implement vendor-specific firmware
|
|
image update policy.
|
|
Null indicates the caller did not specify this policy or use
|
|
the default policy.
|
|
@param[in] PackageVersion The new package version.
|
|
@param[in] PackageVersionName A pointer to the new null-terminated Unicode string representing
|
|
the package version name.
|
|
The string length is equal to or less than the value returned in
|
|
PackageVersionNameMaxLen.
|
|
|
|
@retval EFI_SUCCESS The device was successfully updated with the new package
|
|
information.
|
|
@retval EFI_INVALID_PARAMETER The PackageVersionName length is longer than the value
|
|
returned in PackageVersionNameMaxLen.
|
|
@retval EFI_UNSUPPORTED The operation is not supported.
|
|
@retval EFI_SECURITY_VIOLATION The operation could not be performed due to an authentication failure.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FmpSetPackageInfo (
|
|
IN EFI_FIRMWARE_MANAGEMENT_PROTOCOL *This,
|
|
IN CONST VOID *Image,
|
|
IN UINTN ImageSize,
|
|
IN CONST VOID *VendorCode,
|
|
IN UINT32 PackageVersion,
|
|
IN CONST CHAR16 *PackageVersionName
|
|
);
|
|
|
|
#endif
|
|
|