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