ArmPlatformPkg/Bds: Decoupled OptionalData for the EFI application boot entry from the Linux loader

OptionalData for EFI Application does not contain any more specific information about the ArmPlatformPkg/Bds.
OptionalData now only contains the data pass to the EFI application.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15451 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 21 insertions, 17 deletions

diff --git a/ArmPlatformPkg/Bds/BootOption.c b/ArmPlatformPkg/Bds/BootOption.c
index 8993cb14a2..6f84ed9b63 100644
--- a/ArmPlatformPkg/Bds/BootOption.c
+++ b/ArmPlatformPkg/Bds/BootOption.c
@@ -150,36 +150,37 @@ BootOptionSetFields (
   IN CHAR16*                    BootDescription,

   IN EFI_DEVICE_PATH_PROTOCOL*  DevicePath,

   IN ARM_BDS_LOADER_TYPE        BootType,

-  IN ARM_BDS_LOADER_ARGUMENTS*  BootArguments

+  IN UINT8*                     OptionalData,

+  IN UINTN                      OptionalDataSize

   )

 {

   EFI_LOAD_OPTION               EfiLoadOption;

   UINTN                         EfiLoadOptionSize;

   UINTN                         BootDescriptionSize;

-  UINTN                         BootOptionalDataSize;

   UINT16                        FilePathListLength;

   UINT8*                        EfiLoadOptionPtr;

   UINT8*                        InitrdPathListPtr;

-  UINTN                         OptionalDataSize;

   ARM_BDS_LINUX_ARGUMENTS*      DestLinuxArguments;

   ARM_BDS_LINUX_ARGUMENTS*      SrcLinuxArguments;

+  ARM_BDS_LOADER_ARGUMENTS*     BootArguments;

 

   // If we are overwriting an existent Boot Option then we have to free previously allocated memory

   if (BootOption->LoadOption) {

-    FreePool(BootOption->LoadOption);

+    FreePool (BootOption->LoadOption);

   }

 

   BootDescriptionSize = StrSize (BootDescription);

-  BootOptionalDataSize = sizeof(ARM_BDS_LOADER_OPTIONAL_DATA_HEADER);

+

+  // Fixup the size in case of entry specific to ArmPlatformPkg/Bds

   if ((BootType == BDS_LOADER_KERNEL_LINUX_ATAG) || (BootType == BDS_LOADER_KERNEL_LINUX_FDT)) {

-    BootOptionalDataSize += sizeof(ARM_BDS_LINUX_ARGUMENTS) + BootArguments->LinuxArguments.CmdLineSize + BootArguments->LinuxArguments.InitrdSize;

+    OptionalDataSize += sizeof(ARM_BDS_LOADER_OPTIONAL_DATA_HEADER);

   }

 

   // Compute the size of the FilePath list

   FilePathListLength = GetUnalignedDevicePathSize (DevicePath);

 

   // Allocate the memory for the EFI Load Option

-  EfiLoadOptionSize = sizeof(UINT32) + sizeof(UINT16) + BootDescriptionSize + FilePathListLength + BootOptionalDataSize;

+  EfiLoadOptionSize = sizeof(UINT32) + sizeof(UINT16) + BootDescriptionSize + FilePathListLength + OptionalDataSize;

   EfiLoadOption = (EFI_LOAD_OPTION)AllocatePool(EfiLoadOptionSize);

   EfiLoadOptionPtr = EfiLoadOption;

 

@@ -209,28 +210,29 @@ BootOptionSetFields (
 

   // Optional Data fields, Do unaligned writes

   BootOption->OptionalData = EfiLoadOptionPtr;

-  WriteUnaligned32 ((UINT32 *)EfiLoadOptionPtr, ARM_BDS_OPTIONAL_DATA_SIGNATURE);

-  WriteUnaligned32 ((UINT32 *)(EfiLoadOptionPtr + 4), BootType);

-

-  OptionalDataSize = sizeof(ARM_BDS_LOADER_OPTIONAL_DATA_HEADER);

 

   if ((BootType == BDS_LOADER_KERNEL_LINUX_ATAG) || (BootType == BDS_LOADER_KERNEL_LINUX_FDT)) {

+    // Write the header

+    WriteUnaligned32 ((UINT32 *)EfiLoadOptionPtr, ARM_BDS_OPTIONAL_DATA_SIGNATURE);

+    WriteUnaligned32 ((UINT32 *)(EfiLoadOptionPtr + 4), BootType);

+

+    BootArguments = (ARM_BDS_LOADER_ARGUMENTS*)OptionalData;

     SrcLinuxArguments = &(BootArguments->LinuxArguments);

     DestLinuxArguments = &((ARM_BDS_LOADER_OPTIONAL_DATA*)EfiLoadOptionPtr)->Arguments.LinuxArguments;

 

     WriteUnaligned16 ((UINT16 *)&(DestLinuxArguments->CmdLineSize), SrcLinuxArguments->CmdLineSize);

     WriteUnaligned16 ((UINT16 *)&(DestLinuxArguments->InitrdSize), SrcLinuxArguments->InitrdSize);

-    OptionalDataSize += sizeof (ARM_BDS_LINUX_ARGUMENTS);

 

     if (SrcLinuxArguments->CmdLineSize > 0) {

       CopyMem ((VOID*)(DestLinuxArguments + 1), (VOID*)(SrcLinuxArguments + 1), SrcLinuxArguments->CmdLineSize);

-      OptionalDataSize += SrcLinuxArguments->CmdLineSize;

     }

 

     if (SrcLinuxArguments->InitrdSize > 0) {

       InitrdPathListPtr = (UINT8*)((UINTN)(DestLinuxArguments + 1) + SrcLinuxArguments->CmdLineSize);

       CopyMem (InitrdPathListPtr, (VOID*)((UINTN)(SrcLinuxArguments + 1) + SrcLinuxArguments->CmdLineSize), SrcLinuxArguments->InitrdSize);

     }

+  } else {

+    CopyMem (BootOption->OptionalData, OptionalData, OptionalDataSize);

   }

   BootOption->OptionalDataSize = OptionalDataSize;

 

@@ -253,7 +255,8 @@ BootOptionCreate (
   IN  CHAR16*                   BootDescription,

   IN  EFI_DEVICE_PATH_PROTOCOL* DevicePath,

   IN  ARM_BDS_LOADER_TYPE       BootType,

-  IN  ARM_BDS_LOADER_ARGUMENTS* BootArguments,

+  IN  UINT8*                    OptionalData,

+  IN  UINTN                     OptionalDataSize,

   OUT BDS_LOAD_OPTION**         BdsLoadOption

   )

 {

@@ -272,7 +275,7 @@ BootOptionCreate (
   BootOptionEntry->BdsLoadOption = (BDS_LOAD_OPTION*)AllocateZeroPool (sizeof(BDS_LOAD_OPTION));

 

   BootOption = BootOptionEntry->BdsLoadOption;

-  BootOptionSetFields (BootOption, Attributes, BootDescription, DevicePath, BootType, BootArguments);

+  BootOptionSetFields (BootOption, Attributes, BootDescription, DevicePath, BootType, OptionalData, OptionalDataSize);

 

   //

   // Set the related environment variables

@@ -326,14 +329,15 @@ BootOptionUpdate (
   IN  CHAR16*                   BootDescription,

   IN  EFI_DEVICE_PATH_PROTOCOL* DevicePath,

   IN  ARM_BDS_LOADER_TYPE       BootType,

-  IN  ARM_BDS_LOADER_ARGUMENTS* BootArguments

+  IN UINT8*                     OptionalData,

+  IN UINTN                      OptionalDataSize

   )

 {

   EFI_STATUS      Status;

   CHAR16          BootVariableName[9];

 

   // Update the BDS Load Option structure

-  BootOptionSetFields (BdsLoadOption, Attributes, BootDescription, DevicePath, BootType, BootArguments);

+  BootOptionSetFields (BdsLoadOption, Attributes, BootDescription, DevicePath, BootType, OptionalData, OptionalDataSize);

 

   // Update the related environment variables

   UnicodeSPrint (BootVariableName, 9 * sizeof(CHAR16), L"Boot%04X", BdsLoadOption->LoadOptionIndex);