diff options
Diffstat (limited to 'MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c')
| -rw-r--r-- | MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c | 103 |
1 files changed, 92 insertions, 11 deletions
diff --git a/MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c b/MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c index 56245ec7ae..ef3c766e53 100644 --- a/MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c +++ b/MdeModulePkg/Universal/Disk/PartitionDxe/Gpt.c @@ -17,6 +17,18 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. #include "Partition.h"
+/**
+ Install child handles if the Handle supports GPT partition structure.
+
+ @param[in] BlockIo Parent BlockIo interface
+ @param[in] DiskIo Disk Io protocol.
+ @param[in] Lba The starting Lba of the Partition Table
+ @param[out] PartHeader Stores the partition table that is read
+
+ @retval TRUE The partition table is valid
+ @retval FALSE The partition table is not valid
+
+**/
BOOLEAN
PartitionValidGptTable (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
@@ -26,6 +38,18 @@ PartitionValidGptTable ( );
+/**
+ Check if the CRC field in the Partition table header is valid
+ for Partition entry array.
+
+ @param[in] BlockIo Parent BlockIo interface
+ @param[in] DiskIo Disk Io Protocol.
+ @param[in] PartHeader Partition table header structure
+
+ @retval TRUE the CRC is valid
+ @retval FALSE the CRC is invalid
+
+**/
BOOLEAN
PartitionCheckGptEntryArrayCRC (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
@@ -34,6 +58,18 @@ PartitionCheckGptEntryArrayCRC ( );
+/**
+ Restore Partition Table to its alternate place
+ (Primary -> Backup or Backup -> Primary)
+
+ @param[in] BlockIo Parent BlockIo interface
+ @param[in] DiskIo Disk Io Protocol.
+ @param[in] PartHeader Partition table header structure
+
+ @retval TRUE Restoring succeeds
+ @retval FALSE Restoring failed
+
+**/
BOOLEAN
PartitionRestoreGptTable (
IN EFI_BLOCK_IO_PROTOCOL *BlockIo,
@@ -42,6 +78,16 @@ PartitionRestoreGptTable ( );
+/**
+ Restore Partition Table to its alternate place
+ (Primary -> Backup or Backup -> Primary)
+
+ @param[in] PartHeader Partition table header structure
+ @param[in] PartEntry The partition entry array
+ @param[out] PEntryStatus the partition entry status array
+ recording the status of each partition
+
+**/
VOID
PartitionCheckGptEntry (
IN EFI_PARTITION_TABLE_HEADER *PartHeader,
@@ -50,6 +96,17 @@ PartitionCheckGptEntry ( );
+/**
+ Checks the CRC32 value in the table header
+
+ @param MaxSize Max Size limit
+ @param Size The size of the table
+ @param Hdr Table to check
+
+ @return TRUE CRC Valid
+ @return FALSE CRC Invalid
+
+**/
BOOLEAN
PartitionCheckCrcAltSize (
IN UINTN MaxSize,
@@ -58,6 +115,16 @@ PartitionCheckCrcAltSize ( );
+/**
+ Checks the CRC32 value in the table header
+
+ @param MaxSize Max Size limit
+ @param Hdr Table to check
+
+ @return TRUE CRC Valid
+ @return FALSE CRC Invalid
+
+**/
BOOLEAN
PartitionCheckCrc (
IN UINTN MaxSize,
@@ -65,6 +132,13 @@ PartitionCheckCrc ( );
+/**
+ Updates the CRC32 value in the table header
+
+ @param Size The size of the table
+ @param Hdr Table to update
+
+**/
VOID
PartitionSetCrcAltSize (
IN UINTN Size,
@@ -72,6 +146,12 @@ PartitionSetCrcAltSize ( );
+/**
+ Updates the CRC32 value in the table header
+
+ @param Hdr Table to update
+
+**/
VOID
PartitionSetCrc (
IN OUT EFI_TABLE_HEADER *Hdr
@@ -325,7 +405,7 @@ Done: @param[in] BlockIo Parent BlockIo interface
@param[in] DiskIo Disk Io protocol.
@param[in] Lba The starting Lba of the Partition Table
- @param[in] PartHeader Stores the partition table that is read
+ @param[out] PartHeader Stores the partition table that is read
@retval TRUE The partition table is valid
@retval FALSE The partition table is not valid
@@ -546,6 +626,7 @@ Done: @param[in] PartEntry The partition entry array
@param[out] PEntryStatus the partition entry status array
recording the status of each partition
+
**/
VOID
PartitionCheckGptEntry (
@@ -602,7 +683,7 @@ PartitionCheckGptEntry ( /**
Updates the CRC32 value in the table header
- @param[in,out] Hdr Table to update
+ @param Hdr Table to update
**/
VOID
@@ -617,8 +698,8 @@ PartitionSetCrc ( /**
Updates the CRC32 value in the table header
- @param[in] Size The size of the table
- @param[in,out] Hdr Table to update
+ @param Size The size of the table
+ @param Hdr Table to update
**/
VOID
@@ -639,11 +720,11 @@ PartitionSetCrcAltSize ( /**
Checks the CRC32 value in the table header
- @param[in] MaxSize Max Size limit
- @param[in,out] Hdr Table to check
+ @param MaxSize Max Size limit
+ @param Hdr Table to check
- @return TRUE CRC Valid
- @return FALSE CRC Invalid
+ @return TRUE CRC Valid
+ @return FALSE CRC Invalid
**/
BOOLEAN
@@ -659,9 +740,9 @@ PartitionCheckCrc ( /**
Checks the CRC32 value in the table header
- @param[in] MaxSize Max Size limit
- @param[in] Size The size of the table
- @param[in,out] Hdr Table to check
+ @param MaxSize Max Size limit
+ @param Size The size of the table
+ @param Hdr Table to check
@return TRUE CRC Valid
@return FALSE CRC Invalid
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