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duntan fcd71642df MdePkg: Code optimization to SMM InternalAllocateAlignedPages 
This commit is code optimization to InternalAllocateAlignedPages of
SmmMemoryAllocationLib which can reduce free memory fragments. Also
it can reduce one pre-allocation page.

Let's take a simple example:
The expected pages size is 8KB, Alignment value is 8KB.

In original InternalAllocateAlignedPages(), the first step is to
allocate 4 pages and then find the first 8KB-aligned address in
allocated 4 pages. If the upper limit address of allocated 4 pages
is already 8KB aligned, then the allocated 4 pages contains two
8KB-aligned 8KB ranges. The lower 2 pages will be selected and
removed from free pages. Then the higher 2 pages will be free.
Since the whole memory allocation is from high address to low
address, then the higher 2 pages cann't be merged with other free
pages, causing the free memory fragments.

However, when only allocate 3(2+2-1) pages, we can avoid the free
memory fragments in specific case. Also 3 pages must contain a
8KB-aligned 8KB range, which meets the requirement. If the upper
limit address of allocated 3 pages is 8KB-aligned, then the higher
2 pages range of allocated 3 pages is 8KB-aligned and will be
selected and removed from free pages. The remaining lower one page
of allocated 3 pages will be free and merged with left lower free
memory. This can reduce free memory fragments in smm.

Signed-off-by: Dun Tan <dun.tan@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Zhiguang Liu <zhiguang.liu@intel.com>
 		2023-06-21 08:00:04 +00:00
..
BaseArmTrngLibNull MdePkg/ArmTrngLib: Add NULL instance of Arm TRNG Library 2022-11-06 16:32:28 +00:00
BaseCacheMaintenanceLib MdePkg: Update code to be more C11 compliant by using __func__ 2023-03-17 17:55:48 +00:00
BaseCacheMaintenanceLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseCpuLib MdePkg/BaseCpuLib AARCH64: Make asm files BTI compatible 2023-03-30 11:05:22 +00:00
BaseCpuLibNull MdePkg/BaseCpuLibNull: Add Null version of CpuLib for host testing 2020-07-15 05:25:21 +00:00
BaseDebugLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseDebugLibSerialPort MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseDebugPrintErrorLevelLib MdePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:13 -07:00
BaseExtractGuidedSectionLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseFdtLib MdePkg: Support FDT library. 2023-05-05 03:45:21 +00:00
BaseIoLibIntrinsic MdePkg/BaseIoLibIntrinsic AARCH64: Make asm files BTI compatible 2023-03-30 11:05:22 +00:00
BaseLib MdePkg/BaseLib: Add SpeculationBarrier implementation for RiscV64 2023-06-06 20:37:18 +00:00
BaseMemoryLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseMemoryLibMmx MdePkg: Replace Opcode with the corresponding instructions. 2022-03-01 01:45:47 +00:00
BaseMemoryLibOptDxe MdePkg/BaseMemoryLibOptDxe AARCH64: Make asm files BTI compatible 2023-03-30 11:05:22 +00:00
BaseMemoryLibOptPei MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseMemoryLibRepStr MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseMemoryLibSse2 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseOrderedCollectionRedBlackTreeLib MdePkg: Update code to be more C11 compliant by using __func__ 2023-03-17 17:55:48 +00:00
BasePcdLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePciCf8Lib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePciExpressLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePciLibCf8 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePciLibPciExpress MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePciSegmentInfoLibNull MdePkg/PciSegmentInfoLib: Add missing EFIAPI to GetPciSegmentInfo() 2020-06-24 05:46:27 +00:00
BasePciSegmentLibPci MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePeCoffExtraActionLibNull MdePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:13 -07:00
BasePeCoffGetEntryPointLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePeCoffLib MdePkg/BasePeCoffLib: Deal with broken debug directories 2023-05-05 08:11:22 +00:00
BasePerformanceLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePostCodeLibDebug MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePostCodeLibPort80 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BasePrintLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseReportStatusCodeLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseRiscVSbiLib MdePkg: BaseRiscVSbiLib: make more useful to consumers 2023-05-17 23:47:20 +00:00
BaseRngLib MdePkg/BaseRngLib AARCH64: Make asm files BTI compatible 2023-03-30 11:05:22 +00:00
BaseRngLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseRngLibTimerLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3BootScriptLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3IoLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3PciLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3PciSegmentLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3SmbusLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseS3StallLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseSafeIntLib MdePkg/BaseSafeIntLib: Add LoongArch64 architecture for BaseSafeIntLib. 2022-10-14 02:16:33 +00:00
BaseSerialPortLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseSerialPortLibRiscVSbiLib MdePkg: add SBI-based SerialPortLib for RISC-V 2023-05-17 23:47:20 +00:00
BaseSmbusLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseStackCheckLib MdePkg: Remove RVCT support 2022-05-13 14:58:54 +00:00
BaseSynchronizationLib BaseSynchronizationLib: Fix LoongArch64 synchronization functions 2023-05-05 13:10:09 +00:00
BaseTimerLibNullTemplate MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
BaseUefiDecompressLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
CcProbeLibNull MdePkg: Add CcProbeLibNull 2022-04-19 01:26:08 +00:00
DxeCoreEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeCoreHobLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeExtractGuidedSectionLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeHobLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeHstiLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeIoLibCpuIo2 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxePcdLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeRngLib MdePkg: Update code to be more C11 compliant by using __func__ 2023-03-17 17:55:48 +00:00
DxeRuntimeDebugLibSerialPort MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeRuntimePciExpressLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeServicesLib MdePkg/DxeServicesLib: Add LOONGARCH64 architecture 2022-10-14 02:16:33 +00:00
DxeServicesTableLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
DxeSmbusLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
JedecJep106Lib MdePkg: Add new JedecJep106Lib to fetch JEDEC JEP106 manufacturer 2023-04-12 14:29:54 +00:00
MipiSysTLib MdePkg: Add MipiSysTLib library 2023-05-11 07:26:38 +00:00
MmServicesTableLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
MmUnblockMemoryLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PciSegmentLibSegmentInfo MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiCoreEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiDxePostCodeLibReportStatusCode MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiExtractGuidedSectionLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiHobLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiIoLibCpuIo MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiMemoryAllocationLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiMemoryLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiPcdLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiPciLibPciCfg2 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiPciSegmentLibPciCfg2 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiResourcePublicationLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiServicesLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiServicesTablePointerLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiServicesTablePointerLibIdt MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeiSmbusLibSmbus2Ppi MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
PeimEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
RegisterFilterLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SecPeiDxeTimerLibCpu MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmiHandlerProfileLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmCpuRendezvousLibNull MdePkg: Remove "assert" from SmmCpuRendevousLibNull.c 2022-06-13 01:37:16 +00:00
SmmIoLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmIoLibSmmCpuIo2 MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmLibNull MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmMemLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmMemoryAllocationLib MdePkg: Code optimization to SMM InternalAllocateAlignedPages 2023-06-21 08:00:04 +00:00
SmmPciExpressLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmPciLibPciRootBridgeIo MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmPeriodicSmiLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
SmmServicesTableLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
StandaloneMmDriverEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
StandaloneMmServicesTableLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
TdxLib MdePkg: Add TdxLib to wrap Tdx operations 2022-04-02 08:15:12 +00:00
TraceHubDebugSysTLibNull MdePkg: Add NULL library of TraceHubDebugSysTLib 2023-05-11 07:26:38 +00:00
UefiApplicationEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiBootServicesTableLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiDebugLibConOut MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiDebugLibDebugPortProtocol MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiDebugLibStdErr MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiDevicePathLib MdePkg/Library/UefiDevicePathLib: Add back StandaloneMm INF file 2022-08-10 21:43:49 +00:00
UefiDevicePathLibDevicePathProtocol MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiDriverEntryPoint MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiFileHandleLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiLib MdePkg: Added Call for AfterReadyToBoot Event 2023-02-15 12:34:20 +00:00
UefiMemoryAllocationLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiMemoryLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiPciLibPciRootBridgeIo MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiPciSegmentLibPciRootBridgeIo MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiRuntimeLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiRuntimeServicesTableLib MdePkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:13 -07:00
UefiScsiLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00
UefiUsbLib MdePkg: Apply uncrustify changes 2021-12-07 17:24:28 +00:00