sravan/system76-edk2
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

PI Enable:

Browse Source 
1) The entry point of PeiCore has been changed to EFI_PEI_CORE_ENTRY_POINT defined in PI. 
2) Nt32, Tiger and lakeport platform's SecCore has been updated.
3) Autogen tools also has been updated.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3804 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2007-09-12 09:52:37 +00:00
parent 2303536ca1
commit 5aae0aa7d8
12 changed files with 296 additions and 46 deletions
Download Patch File Download Diff File Expand all files Collapse all files

81
Nt32Pkg/Sec/SecMain.c
View File

@@ -484,6 +484,63 @@ Returns:
return EFI_SUCCESS;
}
/**
Transfers control to a function starting with a new stack.
Transfers control to the function specified by EntryPoint using the new stack
specified by NewStack and passing in the parameters specified by Context1 and
Context2. Context1 and Context2 are optional and may be NULL. The function
EntryPoint must never return.
If EntryPoint is NULL, then ASSERT().
If NewStack is NULL, then ASSERT().
@param EntryPoint A pointer to function to call with the new stack.
@param Context1 A pointer to the context to pass into the EntryPoint
function.
@param Context2 A pointer to the context to pass into the EntryPoint
function.
@param NewStack A pointer to the new stack to use for the EntryPoint
function.
@param NewBsp A pointer to the new BSP for the EntryPoint on IPF. It's
Reserved on other architectures.
**/
VOID
EFIAPI
PeiSwitchStacks (
IN SWITCH_STACK_ENTRY_POINT EntryPoint,
IN VOID *Context1, OPTIONAL
IN VOID *Context2, OPTIONAL
IN VOID *Context3, OPTIONAL
IN VOID *NewStack
)
{
BASE_LIBRARY_JUMP_BUFFER JumpBuffer;
ASSERT (EntryPoint != NULL);
ASSERT (NewStack != NULL);
//
// Stack should be aligned with CPU_STACK_ALIGNMENT
//
ASSERT (((UINTN)NewStack & (CPU_STACK_ALIGNMENT - 1)) == 0);
JumpBuffer.Eip = (UINTN)EntryPoint;
JumpBuffer.Esp = (UINTN)NewStack - sizeof (VOID*);
JumpBuffer.Esp -= sizeof (Context1) + sizeof (Context2) + sizeof(Context3);
((VOID**)JumpBuffer.Esp)[1] = Context1;
((VOID**)JumpBuffer.Esp)[2] = Context2;
((VOID**)JumpBuffer.Esp)[3] = Context3;
LongJump (&JumpBuffer, (UINTN)-1);
//
// InternalSwitchStack () will never return
//
ASSERT (FALSE);
}
VOID
SecLoadFromCore (
@@ -514,7 +571,7 @@ Returns:
UINT64 PeiCoreSize;
EFI_PHYSICAL_ADDRESS PeiCoreEntryPoint;
EFI_PHYSICAL_ADDRESS PeiImageAddress;
EFI_PEI_STARTUP_DESCRIPTOR *PeiStartup;
EFI_SEC_PEI_HAND_OFF *SecCoreData;
//
// Compute Top Of Memory for Stack and PEI Core Allocations
@@ -524,7 +581,7 @@ Returns:
//
// Allocate 128KB for the Stack
//
TopOfStack = (VOID *)((UINTN)TopOfMemory - sizeof (EFI_PEI_STARTUP_DESCRIPTOR) - CPU_STACK_ALIGNMENT);
TopOfStack = (VOID *)((UINTN)TopOfMemory - sizeof (EFI_SEC_PEI_HAND_OFF) - CPU_STACK_ALIGNMENT);
TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);
TopOfMemory = TopOfMemory - STACK_SIZE;
@@ -536,10 +593,16 @@ Returns:
//
// Bind this information into the SEC hand-off state
//
PeiStartup = (EFI_PEI_STARTUP_DESCRIPTOR *) (UINTN) TopOfStack;
PeiStartup->DispatchTable = (EFI_PEI_PPI_DESCRIPTOR *) &gPrivateDispatchTable;
PeiStartup->SizeOfCacheAsRam = STACK_SIZE;
PeiStartup->BootFirmwareVolume = BootFirmwareVolumeBase;
SecCoreData = (EFI_SEC_PEI_HAND_OFF*)(UINTN) TopOfStack;
SecCoreData->DataSize = sizeof(EFI_SEC_PEI_HAND_OFF);
SecCoreData->BootFirmwareVolumeBase = (VOID*)BootFirmwareVolumeBase;
SecCoreData->BootFirmwareVolumeSize = FixedPcdGet32(PcdWinNtFirmwareFdSize);
SecCoreData->TemporaryRamBase = (VOID*)(UINTN)TopOfMemory;
SecCoreData->TemporaryRamSize = STACK_SIZE;
SecCoreData->PeiTemporaryRamBase = SecCoreData->TemporaryRamBase;
SecCoreData->PeiTemporaryRamSize = (UINTN)RShiftU64((UINT64)STACK_SIZE,1);
SecCoreData->StackBase = (VOID*)((UINTN)SecCoreData->TemporaryRamBase + (UINTN)SecCoreData->TemporaryRamSize);
SecCoreData->StackSize = (UINTN)RShiftU64((UINT64)STACK_SIZE,1);
//
// Load the PEI Core from a Firmware Volume
@@ -553,12 +616,14 @@ Returns:
if (EFI_ERROR (Status)) {
return ;
}
//
// Transfer control to the PEI Core
//
SwitchStack (
PeiSwitchStacks (
(SWITCH_STACK_ENTRY_POINT) (UINTN) PeiCoreEntryPoint,
PeiStartup,
SecCoreData,
(VOID *) (UINTN) ((EFI_PEI_PPI_DESCRIPTOR *) &gPrivateDispatchTable),
NULL,
TopOfStack
);