tianocore · os-d · Apr 13, 2026 · Apr 13, 2026 · Apr 13, 2026 · Apr 13, 2026
diff --git a/.pytool/Plugin/SpellCheck/cspell.base.yaml b/.pytool/Plugin/SpellCheck/cspell.base.yaml
diff --git a/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c b/MdeModulePkg/Bus/Pci/EhciDxe/Ehci.c
@@ -1434,7 +1434,7 @@ EhcGetUsbDebugPortInfo (
   Status = PciIo->Pci.Read (
                         PciIo,
                         EfiPciIoWidthUint8,
-                        PCI_CAPBILITY_POINTER_OFFSET,
+                        PCI_CAPABILITY_POINTER_OFFSET,
                         1,
                         &CapabilityPtr
                         );

diff --git a/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.c b/MdeModulePkg/Bus/Pci/IdeBusPei/AtapiPeim.c
@@ -1995,8 +1995,8 @@ RequestSense (
   // fill command packet for Request Sense Packet Command
   //
   ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));
-  Packet.RequestSence.opcode            = ATA_CMD_REQUEST_SENSE;
-  Packet.RequestSence.allocation_length = (UINT8)sizeof (ATAPI_REQUEST_SENSE_DATA);
+  Packet.RequestSense.opcode            = ATA_CMD_REQUEST_SENSE;
+  Packet.RequestSense.allocation_length = (UINT8)sizeof (ATAPI_REQUEST_SENSE_DATA);
 
   Ptr = (UINT16 *)SenseBuffers;
   //

diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciCommand.c
@@ -137,7 +137,7 @@ LocateCapabilityRegBlock (
       PciIoDevice->PciIo.Pci.Read (
                                &PciIoDevice->PciIo,
                                EfiPciIoWidthUint8,
-                               PCI_CAPBILITY_POINTER_OFFSET,
+                               PCI_CAPABILITY_POINTER_OFFSET,
                                1,
                                &CapabilityPtr
                                );

diff --git a/MdeModulePkg/Bus/Usb/UsbBotPei/PeiAtapi.c b/MdeModulePkg/Bus/Usb/UsbBotPei/PeiAtapi.c
@@ -160,8 +160,8 @@ PeiUsbRequestSense (
   // fill command packet for Request Sense Packet Command
   //
   ZeroMem (&Packet, sizeof (ATAPI_PACKET_COMMAND));
-  Packet.RequestSence.opcode            = ATA_CMD_REQUEST_SENSE;
-  Packet.RequestSence.allocation_length = (UINT8)sizeof (ATAPI_REQUEST_SENSE_DATA);
+  Packet.RequestSense.opcode            = ATA_CMD_REQUEST_SENSE;
+  Packet.RequestSense.allocation_length = (UINT8)sizeof (ATAPI_REQUEST_SENSE_DATA);
 
   Ptr = SenseKeyBuffer;
 

diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c b/MdeModulePkg/Universal/Disk/PartitionDxe/Udf.c
@@ -587,7 +587,7 @@ FindLogicalVolumeLocation (
     //
     switch (DescriptorTag->TagIdentifier) {
       case UdfPrimaryVolumeDescriptor:
-      case UdfImplemenationUseVolumeDescriptor:
+      case UdfImplementationUseVolumeDescriptor:
       case UdfPartitionDescriptor:
       case UdfUnallocatedSpaceDescriptor:
         break;

diff --git a/MdePkg/Include/Guid/Apriori.h b/MdePkg/Include/Guid/Apriori.h
@@ -1,6 +1,6 @@
 /** @file
   GUID used as an FV filename for A Priori file. The A Priori file contains a
-  list of FV filenames that the DXE dispatcher will schedule reguardless of
+  list of FV filenames that the DXE dispatcher will schedule regardless of
   the dependency grammar.
 
   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>

diff --git a/MdePkg/Include/Guid/Cper.h b/MdePkg/Include/Guid/Cper.h
@@ -239,7 +239,7 @@ typedef struct {
 
 ///
 /// The validation bit mask indicates whether or not each of the following fields are
-/// valid in Proessor Generic Error section.
+/// valid in Processor Generic Error section.
 ///@{
 #define EFI_GENERIC_ERROR_PROC_TYPE_VALID          BIT0
 #define EFI_GENERIC_ERROR_PROC_ISA_VALID           BIT1
@@ -257,15 +257,15 @@ typedef struct {
 ///@}
 
 ///
-/// The type of the processor architecture in Proessor Generic Error section.
+/// The type of the processor architecture in Processor Generic Error section.
 ///@{
 #define EFI_GENERIC_ERROR_PROC_TYPE_IA32_X64  0x00
 #define EFI_GENERIC_ERROR_PROC_TYPE_IA64      0x01
 #define EFI_GENERIC_ERROR_PROC_TYPE_ARM       0x02
 ///@}
 
 ///
-/// The type of the instruction set executing when the error occurred in Proessor
+/// The type of the instruction set executing when the error occurred in Processor
 /// Generic Error section.
 ///@{
 #define EFI_GENERIC_ERROR_PROC_ISA_IA32     0x00
@@ -275,7 +275,7 @@ typedef struct {
 ///@}
 
 ///
-/// The type of error that occurred in Proessor Generic Error section.
+/// The type of error that occurred in Processor Generic Error section.
 ///@{
 #define EFI_GENERIC_ERROR_PROC_ERROR_TYPE_UNKNOWN     0x00
 #define EFI_GENERIC_ERROR_PROC_ERROR_TYPE_CACHE       0x01
@@ -285,7 +285,7 @@ typedef struct {
 ///@}
 
 ///
-/// The type of operation in Proessor Generic Error section.
+/// The type of operation in Processor Generic Error section.
 ///@{
 #define EFI_GENERIC_ERROR_PROC_OPERATION_GENERIC           0x00
 #define EFI_GENERIC_ERROR_PROC_OPERATION_DATA_READ         0x01
@@ -294,7 +294,7 @@ typedef struct {
 ///@}
 
 ///
-/// Flags bit mask indicates additional information about the error in Proessor Generic
+/// Flags bit mask indicates additional information about the error in Processor Generic
 /// Error section
 ///@{
 #define EFI_GENERIC_ERROR_PROC_FLAGS_RESTARTABLE  BIT0
@@ -840,7 +840,7 @@ typedef struct {
   UINT64                      ValidFields;
   EFI_GENERIC_ERROR_STATUS    ErrorStatus;
   UINT64                      PhysicalAddress;     // Error physical address
-  UINT64                      PhysicalAddressMask; // Grnaularity
+  UINT64                      PhysicalAddressMask; // Granularity
   UINT16                      Node;                // Node #
   UINT16                      Card;
   UINT16                      ModuleRank;        // Module or Rank#
@@ -916,7 +916,7 @@ typedef struct {
   UINT64                      ValidFields;
   EFI_GENERIC_ERROR_STATUS    ErrorStatus;
   UINT64                      PhysicalAddress;     // Error physical address
-  UINT64                      PhysicalAddressMask; // Grnaularity
+  UINT64                      PhysicalAddressMask; // Granularity
   UINT16                      Node;                // Node #
   UINT16                      Card;
   UINT16                      Module;             // Module or Rank#
@@ -1123,7 +1123,7 @@ typedef struct {
 #define EFI_DMA_FAULT_REASON_INVALID_REQUEST                    0x07
 #define EFI_DMA_FAULT_REASON_ACCESS_TRANSLATE_TABLE_ERROR       0x08
 #define EFI_DMA_FAULT_REASON_RESV_BIT_ERROR_IN_TRANSLATE_TABLE  0x09
-#define EFI_DMA_FAULT_REASON_INVALID_COMMAOND                   0x0A
+#define EFI_DMA_FAULT_REASON_INVALID_COMMAND                    0x0A
 #define EFI_DMA_FAULT_REASON_ACCESS_COMMAND_BUFFER_ERROR        0x0B
 ///@}
 

diff --git a/MdePkg/Include/Guid/EventLegacyBios.h b/MdePkg/Include/Guid/EventLegacyBios.h
@@ -1,7 +1,7 @@
 /** @file
   GUID is the name of events used with CreateEventEx in order to be notified
   when the EFI boot manager is about to boot a legacy boot option.
-  Events of this type are notificated just before Int19h is invoked.
+  Events of this type are notified just before Int19h is invoked.
 
   Copyright (c) 2006 - 2018, Intel Corporation. All rights reserved.<BR>
   SPDX-License-Identifier: BSD-2-Clause-Patent

diff --git a/MdePkg/Include/Guid/FileInfo.h b/MdePkg/Include/Guid/FileInfo.h
@@ -56,7 +56,7 @@ typedef struct {
 /// Whenever code needs to know the size of the EFI_FILE_INFO data structure, it needs to
 /// be the size of the data structure without the FileName field.  The following macro
 /// computes this size correctly no matter how big the FileName array is declared.
-/// This is required to make the EFI_FILE_INFO data structure ANSI compilant.
+/// This is required to make the EFI_FILE_INFO data structure ANSI compliant.
 ///
 #define SIZE_OF_EFI_FILE_INFO  OFFSET_OF (EFI_FILE_INFO, FileName)
 

diff --git a/MdePkg/Include/Guid/FileSystemInfo.h b/MdePkg/Include/Guid/FileSystemInfo.h
@@ -45,9 +45,9 @@ typedef struct {
 ///
 /// The VolumeLabel field of the EFI_FILE_SYSTEM_INFO data structure is variable length.
 /// Whenever code needs to know the size of the EFI_FILE_SYSTEM_INFO data structure, it needs
-/// to be the size of the data structure without the VolumeLable field.  The following macro
-/// computes this size correctly no matter how big the VolumeLable array is declared.
-/// This is required to make the EFI_FILE_SYSTEM_INFO data structure ANSI compilant.
+/// to be the size of the data structure without the VolumeLabel field.  The following macro
+/// computes this size correctly no matter how big the VolumeLabel array is declared.
+/// This is required to make the EFI_FILE_SYSTEM_INFO data structure ANSI compliant.
 ///
 #define SIZE_OF_EFI_FILE_SYSTEM_INFO  OFFSET_OF (EFI_FILE_SYSTEM_INFO, VolumeLabel)
 

diff --git a/MdePkg/Include/Guid/ImageAuthentication.h b/MdePkg/Include/Guid/ImageAuthentication.h
@@ -19,12 +19,12 @@
   }
 
 ///
-/// Varialbe name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
+/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
 /// for the authorized signature database.
 ///
 #define EFI_IMAGE_SECURITY_DATABASE  L"db"
 ///
-/// Varialbe name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
+/// Variable name with guid EFI_IMAGE_SECURITY_DATABASE_GUID
 /// for the forbidden signature database.
 ///
 #define EFI_IMAGE_SECURITY_DATABASE1  L"dbx"

diff --git a/MdePkg/Include/IndustryStandard/Acpi10.h b/MdePkg/Include/IndustryStandard/Acpi10.h
@@ -384,7 +384,7 @@ typedef struct {
 #define EFI_ACPI_EXTENDED_INTERRUPT_FLAG_MODE_MASK               BIT1
 #define EFI_ACPI_EXTENDED_INTERRUPT_FLAG_POLARITY_MASK           BIT2
 #define EFI_ACPI_EXTENDED_INTERRUPT_FLAG_SHARABLE_MASK           BIT3
-#define EFI_ACPI_EXTENDED_INTERRUPT_FLAG_WAKE_CAPABLITY_MASK     BIT4
+#define EFI_ACPI_EXTENDED_INTERRUPT_FLAG_WAKE_CAPABILITY_MASK    BIT4
 
 //
 // Ensure proper structure formats

diff --git a/MdePkg/Include/IndustryStandard/Acpi20.h b/MdePkg/Include/IndustryStandard/Acpi20.h
@@ -449,7 +449,7 @@ typedef struct {
 #define EFI_ACPI_2_0_SIMPLE_BOOT_FLAG_TABLE_SIGNATURE  SIGNATURE_32('B', 'O', 'O', 'T')
 
 ///
-/// "DBGP" MS Bebug Port Spec
+/// "DBGP" MS Debug Port Spec
 ///
 #define EFI_ACPI_2_0_DEBUG_PORT_TABLE_SIGNATURE  SIGNATURE_32('D', 'B', 'G', 'P')
 

diff --git a/MdePkg/Include/IndustryStandard/Acpi50.h b/MdePkg/Include/IndustryStandard/Acpi50.h
@@ -956,7 +956,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_5_0_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi51.h b/MdePkg/Include/IndustryStandard/Acpi51.h
@@ -877,7 +877,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_5_1_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi60.h b/MdePkg/Include/IndustryStandard/Acpi60.h
@@ -892,7 +892,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_0_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi61.h b/MdePkg/Include/IndustryStandard/Acpi61.h
@@ -892,7 +892,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_1_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi62.h b/MdePkg/Include/IndustryStandard/Acpi62.h
@@ -1004,7 +1004,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_2_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///
@@ -2551,10 +2551,10 @@ typedef struct {
 /// PDTT Platform Communication Channel Identifier Structure
 ///
 typedef struct {
-  UINT16    SubChannelIdentifer : 8;
-  UINT16    Runtime             : 1;
-  UINT16    WaitForCompletion   : 1;
-  UINT16    Reserved            : 6;
+  UINT16    SubChannelIdentifier : 8;
+  UINT16    Runtime              : 1;
+  UINT16    WaitForCompletion    : 1;
+  UINT16    Reserved             : 6;
 } EFI_ACPI_6_2_PDTT_PCC_IDENTIFIER;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi63.h b/MdePkg/Include/IndustryStandard/Acpi63.h
@@ -966,7 +966,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_3_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///
@@ -1652,13 +1652,13 @@ typedef struct {
 #define EFI_ACPI_6_3_SECURE_DEVICES_TABLE_REVISION  0x01
 
 ///
-/// Secure Devcice types
+/// Secure Device types
 ///
 #define EFI_ACPI_6_3_SDEV_TYPE_PCIE_ENDPOINT_DEVICE   0x01
 #define EFI_ACPI_6_3_SDEV_TYPE_ACPI_NAMESPACE_DEVICE  0x00
 
 ///
-/// Secure Devcice flags
+/// Secure Device flags
 ///
 #define EFI_ACPI_6_3_SDEV_FLAG_ALLOW_HANDOFF  BIT0
 
@@ -2511,11 +2511,11 @@ typedef struct {
 /// PDTT Platform Communication Channel Identifier Structure
 ///
 typedef struct {
-  UINT16    SubChannelIdentifer : 8;
-  UINT16    Runtime             : 1;
-  UINT16    WaitForCompletion   : 1;
-  UINT16    TriggerOrder        : 1;
-  UINT16    Reserved            : 5;
+  UINT16    SubChannelIdentifier : 8;
+  UINT16    Runtime              : 1;
+  UINT16    WaitForCompletion    : 1;
+  UINT16    TriggerOrder         : 1;
+  UINT16    Reserved             : 5;
 } EFI_ACPI_6_3_PDTT_PCC_IDENTIFIER;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi64.h b/MdePkg/Include/IndustryStandard/Acpi64.h
@@ -997,7 +997,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_4_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///
@@ -2623,11 +2623,11 @@ typedef struct {
 /// PDTT Platform Communication Channel Identifier Structure
 ///
 typedef struct {
-  UINT16    SubChannelIdentifer : 8;
-  UINT16    Runtime             : 1;
-  UINT16    WaitForCompletion   : 1;
-  UINT16    TriggerOrder        : 1;
-  UINT16    Reserved            : 5;
+  UINT16    SubChannelIdentifier : 8;
+  UINT16    Runtime              : 1;
+  UINT16    WaitForCompletion    : 1;
+  UINT16    TriggerOrder         : 1;
+  UINT16    Reserved             : 5;
 } EFI_ACPI_6_4_PDTT_PCC_IDENTIFIER;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi65.h b/MdePkg/Include/IndustryStandard/Acpi65.h
@@ -1123,7 +1123,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_5_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///
@@ -2751,11 +2751,11 @@ typedef struct {
 /// PDTT Platform Communication Channel Identifier Structure
 ///
 typedef struct {
-  UINT16    SubChannelIdentifer : 8;
-  UINT16    Runtime             : 1;
-  UINT16    WaitForCompletion   : 1;
-  UINT16    TriggerOrder        : 1;
-  UINT16    Reserved            : 5;
+  UINT16    SubChannelIdentifier : 8;
+  UINT16    Runtime              : 1;
+  UINT16    WaitForCompletion    : 1;
+  UINT16    TriggerOrder         : 1;
+  UINT16    Reserved             : 5;
 } EFI_ACPI_6_5_PDTT_PCC_IDENTIFIER;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/Acpi66.h b/MdePkg/Include/IndustryStandard/Acpi66.h
@@ -1225,7 +1225,7 @@ typedef struct {
   UINT32    PowerStateId;
   UINT32    MemoryPowerNodeId;
   UINT64    MemoryEnergyConsumed;
-  UINT64    ExpectedAveragePowerComsuned;
+  UINT64    ExpectedAveragePowerConsumed;
 } EFI_ACPI_6_6_MPST_PLATFORM_COMMUNICATION_CHANNEL_SHARED_MEMORY_REGION;
 
 ///
@@ -2853,11 +2853,11 @@ typedef struct {
 /// PDTT Platform Communication Channel Identifier Structure
 ///
 typedef struct {
-  UINT16    SubChannelIdentifer : 8;
-  UINT16    Runtime             : 1;
-  UINT16    WaitForCompletion   : 1;
-  UINT16    TriggerOrder        : 1;
-  UINT16    Reserved            : 5;
+  UINT16    SubChannelIdentifier : 8;
+  UINT16    Runtime              : 1;
+  UINT16    WaitForCompletion    : 1;
+  UINT16    TriggerOrder         : 1;
+  UINT16    Reserved             : 5;
 } EFI_ACPI_6_6_PDTT_PCC_IDENTIFIER;
 
 ///

diff --git a/MdePkg/Include/IndustryStandard/ArmAgdiTable.h b/MdePkg/Include/IndustryStandard/ArmAgdiTable.h
@@ -36,7 +36,7 @@ typedef struct {
   /// Signaling Mode bits [1:0]
   /// 0x0 - SDEI based signaling mode
   /// 0x1 - Interrupt based signaling mode
-  /// 0x2 - Both SDEI and Interuppt based signaling mode
+  /// 0x2 - Both SDEI and Interrupt based signaling mode
   /// Rest of the bits [7:2] are reserved
   UINT8                          Flags;
 

diff --git a/MdePkg/Include/IndustryStandard/ArmErrorSourceTable.h b/MdePkg/Include/IndustryStandard/ArmErrorSourceTable.h
@@ -331,7 +331,7 @@ typedef struct {
   /// Type of GIC interface that is associated with this error node.
   ///   0x0 - GIC CPU (GICC)
   ///   0x1 - GIC Distributor (GICD)
-  ///   0x2 - GIC Resistributor (GICR)
+  ///   0x2 - GIC Redistributor (GICR)
   ///   0x3 - GIC ITS (GITS)
   UINT32                       InterfaceType;