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MdeModulePkg/CapsulePei: Optimize the CapsulePei 

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1853

Code change form Mu project:
https://github.com/microsoft/mu_basecore/blob/release/201903/
MdeModulePkg/Universal/CapsulePei/UefiCapsule.c#L801

Separate the capsule check function from GetCapsuleDescriptors
to AreCapsulesStaged. The original one is unclear.

Avoid querying the capsule variable twice. Use a fixed array
to cache the SG list during count the number of SG list. Then
allocate memory buffer to save the SG list from array.

Using MemoryAllocationLib instead of memory function in Pei
services.

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Hao A Wu <hao.a.wu@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Michael Turner <Michael.Turner@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Signed-off-by: Zhichao gao <zhichao.gao@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Reviewed-by: Hao A Wu <hao.a.wu@intel.com>
This commit is contained in:
Bret Barkelew 2019-06-04 10:24:02 +08:00 committed by Hao A Wu
parent ba3aa1c4e7
commit 27052c21c4
3 changed files with 176 additions and 159 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
MdeModulePkg/Universal/CapsulePei/Capsule.h
View File

@ -30,6 +30,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#include <Library/PcdLib.h>
#include <Library/ReportStatusCodeLib.h>
#include <Library/DebugAgentLib.h>
#include <Library/MemoryAllocationLib.h>
#include <IndustryStandard/PeImage.h>
#include "Common/CommonHeader.h"

1
MdeModulePkg/Universal/CapsulePei/CapsulePei.inf
View File

@ -43,6 +43,7 @@
BaseLib
HobLib
BaseMemoryLib
MemoryAllocationLib
PeiServicesLib
PeimEntryPoint
DebugLib

257
MdeModulePkg/Universal/CapsulePei/UefiCapsule.c
View File

@ -791,18 +791,84 @@ BuildMemoryResourceDescriptor (
}
/**
Checks for the presence of capsule descriptors.
Get capsule descriptors from variable CapsuleUpdateData, CapsuleUpdateData1, CapsuleUpdateData2...
and save to DescriptorBuffer.
Check if the capsules are staged.
@param DescriptorBuffer Pointer to the capsule descriptors
@param UpdateCapsules A pointer to return the check result.
@retval EFI_INVALID_PARAMETER The parameter is null.
@retval EFI_SUCCESS The Capsules are staged.
**/
EFI_STATUS
EFIAPI
AreCapsulesStaged(
OUT BOOLEAN *UpdateCapsules
)
{
EFI_STATUS Status;
UINTN Size;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *PPIVariableServices;
EFI_PHYSICAL_ADDRESS CapsuleDataPtr64 = 0;
if (UpdateCapsules == NULL) {
DEBUG ((DEBUG_ERROR, "%a Invalid parameters. Inputs can't be NULL\n", __FUNCTION__));
ASSERT (UpdateCapsules != NULL);
return EFI_INVALID_PARAMETER;
}
*UpdateCapsules = FALSE;
Status = PeiServicesLocatePpi(
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **)&PPIVariableServices
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Failed to find ReadOnlyVariable2PPI\n"));
return Status;
}
//
// Check for Update capsule
//
Size = sizeof (CapsuleDataPtr64);
Status = PPIVariableServices->GetVariable (
PPIVariableServices,
EFI_CAPSULE_VARIABLE_NAME,
&gEfiCapsuleVendorGuid,
NULL,
&Size,
(VOID *)&CapsuleDataPtr64
);
if (!EFI_ERROR (Status)) {
*UpdateCapsules = TRUE;
}
return EFI_SUCCESS;
}
#define MAX_SG_LIST_HEADS (20)
/**
Check all the variables for SG list heads and get the count and addresses.
@param ListLength A pointer would return the SG list length.
@param HeadList A ponter to the capsule SG list.
@retval EFI_SUCCESS a valid capsule is present
@retval EFI_NOT_FOUND if a valid capsule is not present
@retval EFI_INVALID_PARAMETER the input parameter is invalid
@retval EFI_OUT_OF_RESOURCES fail to allocate memory
**/
EFI_STATUS
GetCapsuleDescriptors (
IN EFI_PHYSICAL_ADDRESS *DescriptorBuffer
EFIAPI
GetScatterGatherHeadEntries(
OUT UINTN *ListLength,
OUT EFI_PHYSICAL_ADDRESS **HeadList
)
{
EFI_STATUS Status;
@ -815,6 +881,7 @@ GetCapsuleDescriptors (
CHAR16 *TempVarName;
EFI_PHYSICAL_ADDRESS CapsuleDataPtr64;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *PPIVariableServices;
EFI_PHYSICAL_ADDRESS TempList[MAX_SG_LIST_HEADS];
Index = 0;
TempVarName = NULL;
@ -822,60 +889,57 @@ GetCapsuleDescriptors (
ValidIndex = 0;
CapsuleDataPtr64 = 0;
if ((ListLength == NULL) || (HeadList == NULL)) {
DEBUG ((DEBUG_ERROR, "%a Invalid parameters. Inputs can't be NULL\n", __FUNCTION__));
ASSERT (ListLength != NULL);
ASSERT (HeadList != NULL);
return EFI_INVALID_PARAMETER;
}
*ListLength = 0;
*HeadList = NULL;
Status = PeiServicesLocatePpi (
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **) &PPIVariableServices
);
if (Status == EFI_SUCCESS) {
StrCpyS (CapsuleVarName, sizeof(CapsuleVarName)/sizeof(CHAR16), EFI_CAPSULE_VARIABLE_NAME);
TempVarName = CapsuleVarName + StrLen (CapsuleVarName);
Size = sizeof (CapsuleDataPtr64);
while (1) {
if (Index == 0) {
//
// For the first Capsule Image
//
Status = PPIVariableServices->GetVariable (
PPIVariableServices,
CapsuleVarName,
&gEfiCapsuleVendorGuid,
NULL,
&Size,
(VOID *) &CapsuleDataPtr64
(VOID **)&PPIVariableServices
);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_INFO, "Capsule -- capsule variable not set\n"));
return EFI_NOT_FOUND;
DEBUG ((DEBUG_ERROR, "Failed to find ReadOnlyVariable2PPI\n"));
return Status;
}
//
// We have a chicken/egg situation where the memory init code needs to
// know the boot mode prior to initializing memory. For this case, our
// validate function will fail. We can detect if this is the case if blocklist
// pointer is null. In that case, return success since we know that the
// variable is set.
// setup var name buffer for update capsules
//
if (DescriptorBuffer == NULL) {
return EFI_SUCCESS;
}
} else {
StrCpyS (CapsuleVarName, sizeof (CapsuleVarName) / sizeof (CHAR16), EFI_CAPSULE_VARIABLE_NAME);
TempVarName = CapsuleVarName + StrLen (CapsuleVarName);
while (ValidIndex < MAX_SG_LIST_HEADS) {
if (Index != 0) {
UnicodeValueToStringS (
TempVarName,
sizeof (CapsuleVarName) - ((UINTN)TempVarName - (UINTN)CapsuleVarName),
(sizeof (CapsuleVarName) - ((StrLen (CapsuleVarName) + 1) * sizeof (CHAR16))),
0,
Index,
0
);
}
Size = sizeof (CapsuleDataPtr64);
Status = PPIVariableServices->GetVariable (
PPIVariableServices,
CapsuleVarName,
&gEfiCapsuleVendorGuid,
NULL,
&Size,
(VOID *) &CapsuleDataPtr64
(VOID *)&CapsuleDataPtr64
);
if (EFI_ERROR (Status)) {
if (Status != EFI_NOT_FOUND) {
DEBUG ((DEBUG_ERROR, "Unexpected error getting Capsule Update variable. Status = %r\n"));
}
break;
}
@ -884,25 +948,37 @@ GetCapsuleDescriptors (
//
Flag = FALSE;
for (TempIndex = 0; TempIndex < ValidIndex; TempIndex++) {
if (DescriptorBuffer[TempIndex] == CapsuleDataPtr64) {
if (TempList[TempIndex] == CapsuleDataPtr64) {
Flag = TRUE;
break;
}
}
if (Flag) {
Index ++;
Index++;
continue;
}
}
//
// Cache BlockList which has been processed
// add it to the cached list
//
DescriptorBuffer[ValidIndex++] = CapsuleDataPtr64;
Index ++;
TempList[ValidIndex++] = CapsuleDataPtr64;
Index++;
}
if (ValidIndex == 0) {
DEBUG ((DEBUG_ERROR, "%a didn't find any SG lists in variables\n", __FUNCTION__));
return EFI_NOT_FOUND;
}
*HeadList = AllocateZeroPool ((ValidIndex + 1) * sizeof (EFI_PHYSICAL_ADDRESS));
if (*HeadList == NULL) {
DEBUG ((DEBUG_ERROR, "Failed to allocate memory\n"));
return EFI_OUT_OF_RESOURCES;
}
CopyMem (*HeadList, TempList, (ValidIndex) * sizeof (EFI_PHYSICAL_ADDRESS));
*ListLength = ValidIndex;
return EFI_SUCCESS;
}
@ -937,15 +1013,9 @@ CapsuleCoalesce (
IN OUT UINTN *MemorySize
)
{
UINTN Index;
UINTN Size;
UINTN VariableCount;
CHAR16 CapsuleVarName[30];
CHAR16 *TempVarName;
EFI_PHYSICAL_ADDRESS CapsuleDataPtr64;
EFI_STATUS Status;
EFI_BOOT_MODE BootMode;
EFI_PEI_READ_ONLY_VARIABLE2_PPI *PPIVariableServices;
UINTN ListLength;
EFI_PHYSICAL_ADDRESS *VariableArrayAddress;
MEMORY_RESOURCE_DESCRIPTOR *MemoryResource;
#ifdef MDE_CPU_IA32
@ -955,10 +1025,8 @@ CapsuleCoalesce (
EFI_CAPSULE_LONG_MODE_BUFFER LongModeBuffer;
#endif
Index = 0;
VariableCount = 0;
CapsuleVarName[0] = 0;
CapsuleDataPtr64 = 0;
ListLength = 0;
VariableArrayAddress = NULL;
//
// Someone should have already ascertained the boot mode. If it's not
@ -972,74 +1040,11 @@ CapsuleCoalesce (
}
//
// User may set the same ScatterGatherList with several different variables,
// so cache all ScatterGatherList for check later.
// Get SG list entries
//
Status = PeiServicesLocatePpi (
&gEfiPeiReadOnlyVariable2PpiGuid,
0,
NULL,
(VOID **) &PPIVariableServices
);
Status = GetScatterGatherHeadEntries (&ListLength, &VariableArrayAddress);
if (EFI_ERROR (Status)) {
goto Done;
}
Size = sizeof (CapsuleDataPtr64);
StrCpyS (CapsuleVarName, sizeof(CapsuleVarName)/sizeof(CHAR16), EFI_CAPSULE_VARIABLE_NAME);
TempVarName = CapsuleVarName + StrLen (CapsuleVarName);
while (TRUE) {
if (Index > 0) {
UnicodeValueToStringS (
TempVarName,
sizeof (CapsuleVarName) - ((UINTN)TempVarName - (UINTN)CapsuleVarName),
0,
Index,
0
);
}
Status = PPIVariableServices->GetVariable (
PPIVariableServices,
CapsuleVarName,
&gEfiCapsuleVendorGuid,
NULL,
&Size,
(VOID *) &CapsuleDataPtr64
);
if (EFI_ERROR (Status)) {
//
// There is no capsule variables, quit
//
DEBUG ((DEBUG_INFO,"Capsule variable Index = %d\n", Index));
break;
}
VariableCount++;
Index++;
}
DEBUG ((DEBUG_INFO,"Capsule variable count = %d\n", VariableCount));
//
// The last entry is the end flag.
//
Status = PeiServicesAllocatePool (
(VariableCount + 1) * sizeof (EFI_PHYSICAL_ADDRESS),
(VOID **)&VariableArrayAddress
);
if (Status != EFI_SUCCESS) {
DEBUG ((DEBUG_ERROR, "AllocatePages Failed!, Status = %x\n", Status));
goto Done;
}
ZeroMem (VariableArrayAddress, (VariableCount + 1) * sizeof (EFI_PHYSICAL_ADDRESS));
//
// Find out if we actually have a capsule.
// GetCapsuleDescriptors depends on variable PPI, so it should run in 32-bit environment.
//
Status = GetCapsuleDescriptors (VariableArrayAddress);
if (EFI_ERROR (Status)) {
DEBUG ((DEBUG_ERROR, "Fail to find capsule variables.\n"));
DEBUG ((DEBUG_ERROR, "%a failed to get Scatter Gather List Head Entries. Status = %r\n", __FUNCTION__, Status));
goto Done;
}
@ -1118,7 +1123,17 @@ CheckCapsuleUpdate (
)
{
EFI_STATUS Status;
Status = GetCapsuleDescriptors (NULL);
BOOLEAN Update;
Status = AreCapsulesStaged (&Update);
if (!EFI_ERROR (Status)) {
if (Update) {
Status = EFI_SUCCESS;
} else {
Status = EFI_NOT_FOUND;
}
}
return Status;
}
/**