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audk/MdeModulePkg/Library/DxeCapsuleLibFmp/DxeCapsuleProcessLib.c

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/** @file
DXE capsule process.
Caution: This module requires additional review when modified.
This module will have external input - capsule image.
This external input must be validated carefully to avoid security issue like
buffer overflow, integer overflow.
ProcessCapsules(), ProcessTheseCapsules() will receive untrusted
input and do basic validation.
Copyright (c) 2016 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <PiDxe.h>
#include <Protocol/EsrtManagement.h>
#include <Protocol/FirmwareManagementProgress.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiRuntimeServicesTableLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiLib.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/CapsuleLib.h>
#include <Library/DisplayUpdateProgressLib.h>
#include <IndustryStandard/WindowsUxCapsule.h>
extern EDKII_FIRMWARE_MANAGEMENT_PROGRESS_PROTOCOL *mFmpProgress;
/**
Return if this FMP is a system FMP or a device FMP, based upon CapsuleHeader.
@param[in] CapsuleHeader A pointer to EFI_CAPSULE_HEADER
@retval TRUE It is a system FMP.
@retval FALSE It is a device FMP.
**/
BOOLEAN
IsFmpCapsule (
IN EFI_CAPSULE_HEADER *CapsuleHeader
);
/**
Validate Fmp capsules layout.
Caution: This function may receive untrusted input.
This function assumes the caller validated the capsule by using
IsValidCapsuleHeader(), so that all fields in EFI_CAPSULE_HEADER are correct.
The capsule buffer size is CapsuleHeader->CapsuleImageSize.
This function validates the fields in EFI_FIRMWARE_MANAGEMENT_CAPSULE_HEADER
and EFI_FIRMWARE_MANAGEMENT_CAPSULE_IMAGE_HEADER.
This function need support nested FMP capsule.
@param[in] CapsuleHeader Points to a capsule header.
@param[out] EmbeddedDriverCount The EmbeddedDriverCount in the FMP capsule.
@retval EFI_SUCESS Input capsule is a correct FMP capsule.
@retval EFI_INVALID_PARAMETER Input capsule is not a correct FMP capsule.
**/
EFI_STATUS
ValidateFmpCapsule (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
OUT UINT16 *EmbeddedDriverCount OPTIONAL
);
/**
Validate if it is valid capsule header
This function assumes the caller provided correct CapsuleHeader pointer
and CapsuleSize.
This function validates the fields in EFI_CAPSULE_HEADER.
@param[in] CapsuleHeader Points to a capsule header.
@param[in] CapsuleSize Size of the whole capsule image.
**/
BOOLEAN
IsValidCapsuleHeader (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
IN UINT64 CapsuleSize
);
/**
Return if this capsule is a capsule name capsule, based upon CapsuleHeader.
@param[in] CapsuleHeader A pointer to EFI_CAPSULE_HEADER
@retval TRUE It is a capsule name capsule.
@retval FALSE It is not a capsule name capsule.
**/
BOOLEAN
IsCapsuleNameCapsule (
IN EFI_CAPSULE_HEADER *CapsuleHeader
);
/**
Check the integrity of the capsule name capsule.
If the capsule is vaild, return the physical address of each capsule name string.
@param[in] CapsuleHeader Pointer to the capsule header of a capsule name capsule.
@param[out] CapsuleNameNum Number of capsule name.
@retval NULL Capsule name capsule is not valid.
@retval CapsuleNameBuf Array of capsule name physical address.
**/
EFI_PHYSICAL_ADDRESS *
ValidateCapsuleNameCapsuleIntegrity (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
OUT UINTN *CapsuleNameNum
);
extern BOOLEAN mDxeCapsuleLibEndOfDxe;
BOOLEAN mNeedReset = FALSE;
VOID **mCapsulePtr;
CHAR16 **mCapsuleNamePtr;
EFI_STATUS *mCapsuleStatusArray;
UINT32 mCapsuleTotalNumber;
/**
The firmware implements to process the capsule image.
Caution: This function may receive untrusted input.
@param[in] CapsuleHeader Points to a capsule header.
@param[in] CapFileName Capsule file name.
@param[out] ResetRequired Indicates whether reset is required or not.
@retval EFI_SUCESS Process Capsule Image successfully.
@retval EFI_UNSUPPORTED Capsule image is not supported by the firmware.
@retval EFI_VOLUME_CORRUPTED FV volume in the capsule is corrupted.
@retval EFI_OUT_OF_RESOURCES Not enough memory.
**/
EFI_STATUS
EFIAPI
ProcessThisCapsuleImage (
IN EFI_CAPSULE_HEADER *CapsuleHeader,
IN CHAR16 *CapFileName, OPTIONAL
OUT BOOLEAN *ResetRequired OPTIONAL
);
/**
Function indicate the current completion progress of the firmware
update. Platform may override with own specific progress function.
@param[in] Completion A value between 1 and 100 indicating the current
completion progress of the firmware update
@retval EFI_SUCESS The capsule update progress was updated.
@retval EFI_INVALID_PARAMETER Completion is greater than 100%.
**/
EFI_STATUS
EFIAPI
UpdateImageProgress (
IN UINTN Completion
)
{
EFI_STATUS Status;
UINTN Seconds;
EFI_GRAPHICS_OUTPUT_BLT_PIXEL_UNION *Color;
DEBUG((DEBUG_INFO, "Update Progress - %d%%\n", Completion));
if (Completion > 100) {
return EFI_INVALID_PARAMETER;
}
//
// Use a default timeout of 5 minutes if there is not FMP Progress Protocol.
//
Seconds = 5 * 60;
Color = NULL;
if (mFmpProgress != NULL) {
Seconds = mFmpProgress->WatchdogSeconds;
Color = &mFmpProgress->ProgressBarForegroundColor;
}
//
// Cancel the watchdog timer
//
gBS->SetWatchdogTimer (0, 0x0000, 0, NULL);
if (Completion != 100) {
//
// Arm the watchdog timer from PCD setting
//
if (Seconds != 0) {
DEBUG ((DEBUG_VERBOSE, "Arm watchdog timer %d seconds\n", Seconds));
gBS->SetWatchdogTimer (Seconds, 0x0000, 0, NULL);
}
}
Status = DisplayUpdateProgress (Completion, Color);
return Status;
}
/**
This function initializes the mCapsulePtr, mCapsuleStatusArray and mCapsuleTotalNumber.
**/
VOID
InitCapsulePtr (
VOID
)
{
EFI_PEI_HOB_POINTERS HobPointer;
UINTN Index;
UINTN Index2;
UINTN Index3;
UINTN CapsuleNameNumber;
UINTN CapsuleNameTotalNumber;
UINTN CapsuleNameCapsuleTotalNumber;
VOID **CapsuleNameCapsulePtr;
EFI_PHYSICAL_ADDRESS *CapsuleNameAddress;
CapsuleNameNumber = 0;
CapsuleNameTotalNumber = 0;
CapsuleNameCapsuleTotalNumber = 0;
CapsuleNameCapsulePtr = NULL;
//
// Find all capsule images from hob
//
HobPointer.Raw = GetHobList ();
while ((HobPointer.Raw = GetNextHob (EFI_HOB_TYPE_UEFI_CAPSULE, HobPointer.Raw)) != NULL) {
if (!IsValidCapsuleHeader((VOID *)(UINTN)HobPointer.Capsule->BaseAddress, HobPointer.Capsule->Length)) {
HobPointer.Header->HobType = EFI_HOB_TYPE_UNUSED; // Mark this hob as invalid
} else {
if (IsCapsuleNameCapsule((VOID *)(UINTN)HobPointer.Capsule->BaseAddress)) {
CapsuleNameCapsuleTotalNumber++;
} else {
mCapsuleTotalNumber++;
}
}
HobPointer.Raw = GET_NEXT_HOB (HobPointer);
}
DEBUG ((DEBUG_INFO, "mCapsuleTotalNumber - 0x%x\n", mCapsuleTotalNumber));
if (mCapsuleTotalNumber == 0) {
return ;
}
//
// Init temp Capsule Data table.
//
mCapsulePtr = (VOID **) AllocateZeroPool (sizeof (VOID *) * mCapsuleTotalNumber);
if (mCapsulePtr == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate mCapsulePtr fail!\n"));
mCapsuleTotalNumber = 0;
return ;
}
mCapsuleStatusArray = (EFI_STATUS *) AllocateZeroPool (sizeof (EFI_STATUS) * mCapsuleTotalNumber);
if (mCapsuleStatusArray == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate mCapsuleStatusArray fail!\n"));
FreePool (mCapsulePtr);
mCapsulePtr = NULL;
mCapsuleTotalNumber = 0;
return ;
}
SetMemN (mCapsuleStatusArray, sizeof (EFI_STATUS) * mCapsuleTotalNumber, EFI_NOT_READY);
CapsuleNameCapsulePtr = (VOID **) AllocateZeroPool (sizeof (VOID *) * CapsuleNameCapsuleTotalNumber);
if (CapsuleNameCapsulePtr == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate CapsuleNameCapsulePtr fail!\n"));
FreePool (mCapsulePtr);
FreePool (mCapsuleStatusArray);
mCapsulePtr = NULL;
mCapsuleStatusArray = NULL;
mCapsuleTotalNumber = 0;
return ;
}
//
// Find all capsule images from hob
//
HobPointer.Raw = GetHobList ();
Index = 0;
Index2 = 0;
while ((HobPointer.Raw = GetNextHob (EFI_HOB_TYPE_UEFI_CAPSULE, HobPointer.Raw)) != NULL) {
if (IsCapsuleNameCapsule ((VOID *) (UINTN) HobPointer.Capsule->BaseAddress)) {
CapsuleNameCapsulePtr [Index2++] = (VOID *) (UINTN) HobPointer.Capsule->BaseAddress;
} else {
mCapsulePtr [Index++] = (VOID *) (UINTN) HobPointer.Capsule->BaseAddress;
}
HobPointer.Raw = GET_NEXT_HOB (HobPointer);
}
//
// Find Capsule On Disk Names
//
for (Index = 0; Index < CapsuleNameCapsuleTotalNumber; Index ++) {
CapsuleNameAddress = ValidateCapsuleNameCapsuleIntegrity (CapsuleNameCapsulePtr[Index], &CapsuleNameNumber);
if (CapsuleNameAddress != NULL ) {
CapsuleNameTotalNumber += CapsuleNameNumber;
}
}
if (CapsuleNameTotalNumber == mCapsuleTotalNumber) {
mCapsuleNamePtr = (CHAR16 **) AllocateZeroPool (sizeof (CHAR16 *) * mCapsuleTotalNumber);
if (mCapsuleNamePtr == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate mCapsuleNamePtr fail!\n"));
FreePool (mCapsulePtr);
FreePool (mCapsuleStatusArray);
FreePool (CapsuleNameCapsulePtr);
mCapsulePtr = NULL;
mCapsuleStatusArray = NULL;
mCapsuleTotalNumber = 0;
return ;
}
for (Index = 0, Index3 = 0; Index < CapsuleNameCapsuleTotalNumber; Index ++) {
CapsuleNameAddress = ValidateCapsuleNameCapsuleIntegrity (CapsuleNameCapsulePtr[Index], &CapsuleNameNumber);
if (CapsuleNameAddress != NULL ) {
for (Index2 = 0; Index2 < CapsuleNameNumber; Index2 ++) {
mCapsuleNamePtr[Index3 ++] = (CHAR16 *)(UINTN) CapsuleNameAddress[Index2];
}
}
}
} else {
mCapsuleNamePtr = NULL;
}
FreePool (CapsuleNameCapsulePtr);
}
/**
This function returns if all capsule images are processed.
@retval TRUE All capsule images are processed.
@retval FALSE Not all capsule images are processed.
**/
BOOLEAN
AreAllImagesProcessed (
VOID
)
{
UINTN Index;
for (Index = 0; Index < mCapsuleTotalNumber; Index++) {
if (mCapsuleStatusArray[Index] == EFI_NOT_READY) {
return FALSE;
}
}
return TRUE;
}
/**
This function populates capsule in the configuration table.
**/
VOID
PopulateCapsuleInConfigurationTable (
VOID
)
{
VOID **CapsulePtrCache;
EFI_GUID *CapsuleGuidCache;
EFI_CAPSULE_HEADER *CapsuleHeader;
EFI_CAPSULE_TABLE *CapsuleTable;
UINT32 CacheIndex;
UINT32 CacheNumber;
UINT32 CapsuleNumber;
UINTN Index;
UINTN Size;
EFI_STATUS Status;
if (mCapsuleTotalNumber == 0) {
return ;
}
CapsulePtrCache = NULL;
CapsuleGuidCache = NULL;
CacheIndex = 0;
CacheNumber = 0;
CapsulePtrCache = (VOID **) AllocateZeroPool (sizeof (VOID *) * mCapsuleTotalNumber);
if (CapsulePtrCache == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate CapsulePtrCache fail!\n"));
return ;
}
CapsuleGuidCache = (EFI_GUID *) AllocateZeroPool (sizeof (EFI_GUID) * mCapsuleTotalNumber);
if (CapsuleGuidCache == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate CapsuleGuidCache fail!\n"));
FreePool (CapsulePtrCache);
return ;
}
//
// Capsules who have CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE always are used for operating
// System to have information persist across a system reset. EFI System Table must
// point to an array of capsules that contains the same CapsuleGuid value. And agents
// searching for this type capsule will look in EFI System Table and search for the
// capsule's Guid and associated pointer to retrieve the data. Two steps below describes
// how to sorting the capsules by the unique guid and install the array to EFI System Table.
// Firstly, Loop for all coalesced capsules, record unique CapsuleGuids and cache them in an
// array for later sorting capsules by CapsuleGuid.
//
for (Index = 0; Index < mCapsuleTotalNumber; Index++) {
CapsuleHeader = (EFI_CAPSULE_HEADER*) mCapsulePtr [Index];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {
//
// For each capsule, we compare it with known CapsuleGuid in the CacheArray.
// If already has the Guid, skip it. Whereas, record it in the CacheArray as
// an additional one.
//
CacheIndex = 0;
while (CacheIndex < CacheNumber) {
if (CompareGuid(&CapsuleGuidCache[CacheIndex],&CapsuleHeader->CapsuleGuid)) {
break;
}
CacheIndex++;
}
if (CacheIndex == CacheNumber) {
CopyMem(&CapsuleGuidCache[CacheNumber++],&CapsuleHeader->CapsuleGuid,sizeof(EFI_GUID));
}
}
}
//
// Secondly, for each unique CapsuleGuid in CacheArray, gather all coalesced capsules
// whose guid is the same as it, and malloc memory for an array which preceding
// with UINT32. The array fills with entry point of capsules that have the same
// CapsuleGuid, and UINT32 represents the size of the array of capsules. Then install
// this array into EFI System Table, so that agents searching for this type capsule
// will look in EFI System Table and search for the capsule's Guid and associated
// pointer to retrieve the data.
//
for (CacheIndex = 0; CacheIndex < CacheNumber; CacheIndex++) {
CapsuleNumber = 0;
for (Index = 0; Index < mCapsuleTotalNumber; Index++) {
CapsuleHeader = (EFI_CAPSULE_HEADER*) mCapsulePtr [Index];
if ((CapsuleHeader->Flags & CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE) != 0) {
if (CompareGuid (&CapsuleGuidCache[CacheIndex], &CapsuleHeader->CapsuleGuid)) {
//
// Cache Caspuleheader to the array, this array is uniqued with certain CapsuleGuid.
//
CapsulePtrCache[CapsuleNumber++] = (VOID*)CapsuleHeader;
}
}
}
if (CapsuleNumber != 0) {
Size = sizeof(EFI_CAPSULE_TABLE) + (CapsuleNumber - 1) * sizeof(VOID*);
CapsuleTable = AllocateRuntimePool (Size);
if (CapsuleTable == NULL) {
DEBUG ((DEBUG_ERROR, "Allocate CapsuleTable (%g) fail!\n", &CapsuleGuidCache[CacheIndex]));
continue;
}
CapsuleTable->CapsuleArrayNumber = CapsuleNumber;
CopyMem(&CapsuleTable->CapsulePtr[0], CapsulePtrCache, CapsuleNumber * sizeof(VOID*));
Status = gBS->InstallConfigurationTable (&CapsuleGuidCache[CacheIndex], (VOID*)CapsuleTable);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "InstallConfigurationTable (%g) fail!\n", &CapsuleGuidCache[CacheIndex]));
}
}
}
FreePool(CapsuleGuidCache);
FreePool(CapsulePtrCache);
}
/**
This routine is called to process capsules.
Caution: This function may receive untrusted input.
Each individual capsule result is recorded in capsule record variable.
@param[in] FirstRound TRUE: First round. Need skip the FMP capsules with non zero EmbeddedDriverCount.
FALSE: Process rest FMP capsules.
@retval EFI_SUCCESS There is no error when processing capsules.
@retval EFI_OUT_OF_RESOURCES No enough resource to process capsules.
**/
EFI_STATUS
ProcessTheseCapsules (
IN BOOLEAN FirstRound
)
{
EFI_STATUS Status;
EFI_CAPSULE_HEADER *CapsuleHeader;
UINT32 Index;
ESRT_MANAGEMENT_PROTOCOL *EsrtManagement;
UINT16 EmbeddedDriverCount;
BOOLEAN ResetRequired;
CHAR16 *CapsuleName;
REPORT_STATUS_CODE(EFI_PROGRESS_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeProcessCapsulesBegin)));
if (FirstRound) {
InitCapsulePtr ();
}
if (mCapsuleTotalNumber == 0) {
//
// We didn't find a hob, so had no errors.
//
DEBUG ((DEBUG_ERROR, "We can not find capsule data in capsule update boot mode.\n"));
mNeedReset = TRUE;
return EFI_SUCCESS;
}
if (AreAllImagesProcessed ()) {
return EFI_SUCCESS;
}
//
// Check the capsule flags,if contains CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE, install
// capsuleTable to configure table with EFI_CAPSULE_GUID
//
if (FirstRound) {
PopulateCapsuleInConfigurationTable ();
}
REPORT_STATUS_CODE(EFI_PROGRESS_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeUpdatingFirmware)));
//
// If Windows UX capsule exist, process it first
//
for (Index = 0; Index < mCapsuleTotalNumber; Index++) {
CapsuleHeader = (EFI_CAPSULE_HEADER*) mCapsulePtr [Index];
CapsuleName = (mCapsuleNamePtr == NULL) ? NULL : mCapsuleNamePtr[Index];
if (CompareGuid (&CapsuleHeader->CapsuleGuid, &gWindowsUxCapsuleGuid)) {
DEBUG ((DEBUG_INFO, "ProcessThisCapsuleImage (Ux) - 0x%x\n", CapsuleHeader));
DEBUG ((DEBUG_INFO, "Display logo capsule is found.\n"));
Status = ProcessThisCapsuleImage (CapsuleHeader, CapsuleName, NULL);
mCapsuleStatusArray [Index] = EFI_SUCCESS;
DEBUG((DEBUG_INFO, "ProcessThisCapsuleImage (Ux) - %r\n", Status));
break;
}
}
DEBUG ((DEBUG_INFO, "Updating the firmware ......\n"));
//
// All capsules left are recognized by platform.
//
for (Index = 0; Index < mCapsuleTotalNumber; Index++) {
if (mCapsuleStatusArray [Index] != EFI_NOT_READY) {
// already processed
continue;
}
CapsuleHeader = (EFI_CAPSULE_HEADER*) mCapsulePtr [Index];
CapsuleName = (mCapsuleNamePtr == NULL) ? NULL : mCapsuleNamePtr[Index];
if (!CompareGuid (&CapsuleHeader->CapsuleGuid, &gWindowsUxCapsuleGuid)) {
//
// Call capsule library to process capsule image.
//
EmbeddedDriverCount = 0;
if (IsFmpCapsule(CapsuleHeader)) {
Status = ValidateFmpCapsule (CapsuleHeader, &EmbeddedDriverCount);
if (EFI_ERROR(Status)) {
DEBUG((DEBUG_ERROR, "ValidateFmpCapsule failed. Ignore!\n"));
mCapsuleStatusArray [Index] = EFI_ABORTED;
continue;
}
} else {
mCapsuleStatusArray [Index] = EFI_ABORTED;
continue;
}
if ((!FirstRound) || (EmbeddedDriverCount == 0)) {
DEBUG((DEBUG_INFO, "ProcessThisCapsuleImage - 0x%x\n", CapsuleHeader));
ResetRequired = FALSE;
Status = ProcessThisCapsuleImage (CapsuleHeader, CapsuleName, &ResetRequired);
mCapsuleStatusArray [Index] = Status;
DEBUG((DEBUG_INFO, "ProcessThisCapsuleImage - %r\n", Status));
if (Status != EFI_NOT_READY) {
if (EFI_ERROR(Status)) {
REPORT_STATUS_CODE(EFI_ERROR_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeUpdateFirmwareFailed)));
DEBUG ((DEBUG_ERROR, "Capsule process failed!\n"));
} else {
REPORT_STATUS_CODE(EFI_PROGRESS_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeUpdateFirmwareSuccess)));
}
mNeedReset |= ResetRequired;
if ((CapsuleHeader->Flags & PcdGet16(PcdSystemRebootAfterCapsuleProcessFlag)) != 0) {
mNeedReset = TRUE;
}
}
}
}
}
Status = gBS->LocateProtocol(&gEsrtManagementProtocolGuid, NULL, (VOID **)&EsrtManagement);
//
// Always sync ESRT Cache from FMP Instance
//
if (!EFI_ERROR(Status)) {
EsrtManagement->SyncEsrtFmp();
}
Status = EFI_SUCCESS;
REPORT_STATUS_CODE(EFI_PROGRESS_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeProcessCapsulesEnd)));
return Status;
}
/**
Do reset system.
**/
VOID
DoResetSystem (
VOID
)
{
DEBUG((DEBUG_INFO, "Capsule Request Cold Reboot."));
REPORT_STATUS_CODE(EFI_PROGRESS_CODE, (EFI_SOFTWARE | PcdGet32(PcdStatusCodeSubClassCapsule) | PcdGet32(PcdCapsuleStatusCodeResettingSystem)));
gRT->ResetSystem(EfiResetCold, EFI_SUCCESS, 0, NULL);
CpuDeadLoop();
}
/**
This routine is called to process capsules.
Caution: This function may receive untrusted input.
The capsules reported in EFI_HOB_UEFI_CAPSULE are processed.
If there is no EFI_HOB_UEFI_CAPSULE, it means error occurs, force reset to
normal boot path.
This routine should be called twice in BDS.
1) The first call must be before EndOfDxe. The system capsules is processed.
If device capsule FMP protocols are exposted at this time and device FMP
capsule has zero EmbeddedDriverCount, the device capsules are processed.
Each individual capsule result is recorded in capsule record variable.
System may reset in this function, if reset is required by capsule and
all capsules are processed.
If not all capsules are processed, reset will be defered to second call.
2) The second call must be after EndOfDxe and after ConnectAll, so that all
device capsule FMP protocols are exposed.
The system capsules are skipped. If the device capsules are NOT processed
in first call, they are processed here.
Each individual capsule result is recorded in capsule record variable.
System may reset in this function, if reset is required by capsule
processed in first call and second call.
@retval EFI_SUCCESS There is no error when processing capsules.
@retval EFI_OUT_OF_RESOURCES No enough resource to process capsules.
**/
EFI_STATUS
EFIAPI
ProcessCapsules (
VOID
)
{
EFI_STATUS Status;
if (!mDxeCapsuleLibEndOfDxe) {
Status = ProcessTheseCapsules(TRUE);
//
// Reboot System if and only if all capsule processed.
// If not, defer reset to 2nd process.
//
if (mNeedReset && AreAllImagesProcessed()) {
DoResetSystem();
}
} else {
Status = ProcessTheseCapsules(FALSE);
//
// Reboot System if required after all capsule processed
//
if (mNeedReset) {
DoResetSystem();
}
}
return Status;
}
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