diff options
Diffstat (limited to 'EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c')
| -rw-r--r-- | EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c | 586 |
1 files changed, 0 insertions, 586 deletions
diff --git a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c b/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c deleted file mode 100644 index 33233d68e5..0000000000 --- a/EdkModulePkg/Universal/DebugSupport/Dxe/ipf/plDebugSupport.c +++ /dev/null @@ -1,586 +0,0 @@ -/**@file
- IPF specific debug support functions
-
-Copyright (c) 2006, Intel Corporation
-All rights reserved. This program and the accompanying materials
-are licensed and made available under the terms and conditions of the BSD License
-which accompanies this distribution. The full text of the license may be found at
-http://opensource.org/licenses/bsd-license.php
-
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
-
-**/
-
-//
-// private header files
-//
-#include "plDebugSupport.h"
-
-typedef struct {
- UINT64 low;
- UINT64 high;
-} BUNDLE;
-
-//
-// number of bundles to swap in ivt
-//
-#define NUM_BUNDLES_IN_STUB 5
-#define NUM_IVT_ENTRIES 64
-
-typedef struct {
- BUNDLE OrigBundles[NUM_BUNDLES_IN_STUB];
- VOID (*RegisteredCallback) ();
-} IVT_ENTRY;
-
-STATIC
-EFI_STATUS
-ManageIvtEntryTable (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- );
-
-STATIC
-VOID
-ChainExternalInterrupt (
- IN VOID (*NewCallback) ()
- );
-
-STATIC
-VOID
-UnchainExternalInterrupt (
- VOID
- );
-
-STATIC
-VOID
-GetHandlerEntryPoint (
- UINTN HandlerIndex,
- VOID **EntryPoint
- );
-
-IVT_ENTRY IvtEntryTable[NUM_IVT_ENTRIES];
-
-//
-// IPF context record is overallocated by 512 bytes to guarantee a 512 byte alignment exists
-// within the buffer and still have a large enough buffer to hold a whole IPF context record.
-//
-UINT8 IpfContextBuf[sizeof (EFI_SYSTEM_CONTEXT_IPF) + 512];
-
-//
-// The PatchSaveBuffer is used to store the original bundles from the IVT where it is patched
-// with the common handler.
-//
-UINT8 PatchSaveBuffer[0x400];
-UINTN ExternalInterruptCount;
-
-EFI_STATUS
-plInitializeDebugSupportDriver (
- VOID
- )
-/*++
-
-Routine Description:
- IPF specific DebugSupport driver initialization. Must be public because it's
- referenced from DebugSupport.c
-
-Arguments:
-
-Returns:
-
- EFI_SUCCESS
-
---*/
-{
- SetMem (IvtEntryTable, sizeof (IvtEntryTable), 0);
- ExternalInterruptCount = 0;
- return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-plUnloadDebugSupportDriver (
- IN EFI_HANDLE ImageHandle
- )
-/*++
-
-Routine Description:
- Unload handler that is called during UnloadImage() - deallocates pool memory
- used by the driver. Must be public because it's referenced from DebugSuport.c
-
-Arguments:
- ImageHandle - Image handle
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- EFI_EXCEPTION_TYPE ExceptionType;
-
- for (ExceptionType = 0; ExceptionType < NUM_IVT_ENTRIES; ExceptionType++) {
- ManageIvtEntryTable (ExceptionType, NULL, NULL);
- }
-
- return EFI_SUCCESS;
-}
-
-VOID
-CommonHandler (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN EFI_SYSTEM_CONTEXT Context
- )
-/*++
-
-Routine Description:
- C routine that is called for all registered exceptions. This is the main
- exception dispatcher. Must be public because it's referenced from AsmFuncs.s.
-
-Arguments:
- ExceptionType - Exception Type
- Context - System Context
-
-Returns:
-
- Nothing
-
---*/
-{
- static BOOLEAN InHandler = FALSE;
-
- DEBUG_CODE_BEGIN ();
- if (InHandler) {
- DEBUG ((EFI_D_INFO, "ERROR: Re-entered debugger!\n"
- " ExceptionType == %X\n"
- " Context == %X\n"
- " Context.SystemContextIpf->CrIip == %X\n"
- " Context.SystemContextIpf->CrIpsr == %X\n"
- " InHandler == %X\n",
- ExceptionType,
- Context,
- Context.SystemContextIpf->CrIip,
- Context.SystemContextIpf->CrIpsr,
- InHandler));
- }
- DEBUG_CODE_END ();
-
- ASSERT (!InHandler);
- InHandler = TRUE;
- if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- if (ExceptionType != EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- IvtEntryTable[ExceptionType].RegisteredCallback (ExceptionType, Context.SystemContextIpf);
- } else {
- IvtEntryTable[ExceptionType].RegisteredCallback (Context.SystemContextIpf);
- }
- } else {
- ASSERT (0);
- }
-
- InHandler = FALSE;
-}
-
-STATIC
-VOID
-GetHandlerEntryPoint (
- UINTN HandlerIndex,
- VOID **EntryPoint
- )
-/*++
-
-Routine Description:
- Given an integer number, return the physical address of the entry point in the IFT
-
-Arguments:
- HandlerIndex - Index of the Handler
- EntryPoint - IFT Entrypoint
-
-Returns:
-
- Nothing
-
---*/
-{
- UINT8 *TempPtr;
-
- //
- // get base address of IVT
- //
- TempPtr = GetIva ();
-
- if (HandlerIndex < 20) {
- //
- // first 20 provide 64 bundles per vector
- //
- TempPtr += 0x400 * HandlerIndex;
- } else {
- //
- // the rest provide 16 bundles per vector
- //
- TempPtr += 0x5000 + 0x100 * (HandlerIndex - 20);
- }
-
- *EntryPoint = (VOID *) TempPtr;
-}
-
-STATIC
-EFI_STATUS
-ManageIvtEntryTable (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[NUM_BUNDLES_IN_STUB],
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- This is the worker function that installs and removes all handlers
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- EFI_STATUS - any return other than EFI_SUCCESS indicates the request was not
- satisfied.
- EFI_ALEADY_STARTED - Ivt already hooked.
-
---*/
-{
- BUNDLE *B0Ptr;
- UINT64 InterruptFlags;
- EFI_TPL OldTpl;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
-
- if (IvtEntryTable[ExceptionType].RegisteredCallback != NULL) {
- //
- // we've already installed to this vector
- //
- if (NewCallback != NULL) {
- //
- // if the input handler is non-null, error
- //
- return EFI_ALREADY_STARTED;
- } else {
- //
- // else remove the previously installed handler
- //
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
- if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- UnchainExternalInterrupt ();
- } else {
- UnhookEntry (ExceptionType);
- }
-
- ProgramInterruptFlags (InterruptFlags);
- gBS->RestoreTPL (OldTpl);
- //
- // re-init IvtEntryTable
- //
- SetMem (&IvtEntryTable[ExceptionType], sizeof (IVT_ENTRY), 0);
- }
- } else {
- //
- // no user handler installed on this vector
- //
- if (NewCallback != NULL) {
- OldTpl = gBS->RaiseTPL (TPL_HIGH_LEVEL);
- InterruptFlags = ProgramInterruptFlags (DISABLE_INTERRUPTS);
- if (ExceptionType == EXCEPT_IPF_EXTERNAL_INTERRUPT) {
- ChainExternalInterrupt (NewCallback);
- } else {
- HookEntry (ExceptionType, NewBundles, NewCallback);
- }
-
- ProgramInterruptFlags (InterruptFlags);
- gBS->RestoreTPL (OldTpl);
- }
- }
-
- return EFI_SUCCESS;
-}
-
-STATIC
-VOID
-HookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType,
- IN BUNDLE NewBundles[4],
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Saves original IVT contents and inserts a few new bundles which are fixed up
- to store the ExceptionType and then call the common handler.
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- BUNDLE *FixupBundle;
- BUNDLE *B0Ptr;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
-
- //
- // copy original bundles from IVT to IvtEntryTable so we can restore them later
- //
- CopyMem (
- IvtEntryTable[ExceptionType].OrigBundles,
- B0Ptr,
- sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
- );
- //
- // insert new B0
- //
- CopyMem (B0Ptr, NewBundles, sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB);
-
- //
- // fixup IVT entry so it stores its index and whether or not to chain...
- //
- FixupBundle = B0Ptr + 2;
- FixupBundle->high |= ExceptionType << 36;
-
- InstructionCacheFlush (B0Ptr, 5);
- IvtEntryTable[ExceptionType].RegisteredCallback = NewCallback;
-}
-
-STATIC
-VOID
-UnhookEntry (
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- Restores original IVT contents when unregistering a callback function
-
-Arguments:
- ExceptionType - Exception Type
- NewBundles - New Boundles
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- BUNDLE *B0Ptr;
-
- //
- // Get address of bundle 0
- //
- GetHandlerEntryPoint (ExceptionType, (VOID **) &B0Ptr);
- //
- // restore original bundles in IVT
- //
- CopyMem (
- B0Ptr,
- IvtEntryTable[ExceptionType].OrigBundles,
- sizeof (BUNDLE) * NUM_BUNDLES_IN_STUB
- );
- InstructionCacheFlush (B0Ptr, 5);
-}
-
-STATIC
-VOID
-ChainExternalInterrupt (
- IN VOID (*NewCallback) ()
- )
-/*++
-
-Routine Description:
- Sets up cache flush and calls assembly function to chain external interrupt.
- Records new callback in IvtEntryTable.
-
-Arguments:
- NewCallback - New Callback
-
-Returns:
-
- Nothing
-
---*/
-{
- VOID *Start;
-
- Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
- IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NewCallback;
- ChainHandler ();
- InstructionCacheFlush (Start, 0x400);
-}
-
-STATIC
-VOID
-UnchainExternalInterrupt (
- VOID
- )
-/*++
-
-Routine Description:
- Sets up cache flush and calls assembly function to restore external interrupt.
- Removes registered callback from IvtEntryTable.
-
-Arguments:
- Nothing
-
-Returns:
-
- Nothing
-
---*/
-{
- VOID *Start;
-
- Start = (VOID *) ((UINT8 *) GetIva () + 0x400 * EXCEPT_IPF_EXTERNAL_INTERRUPT + 0x400);
- UnchainHandler ();
- InstructionCacheFlush (Start, 0x400);
- IvtEntryTable[EXCEPT_IPF_EXTERNAL_INTERRUPT].RegisteredCallback = NULL;
-}
-
-//
-// The rest of the functions in this file are all member functions for the
-// DebugSupport protocol
-//
-
-EFI_STATUS
-EFIAPI
-GetMaximumProcessorIndex (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- OUT UINTN *MaxProcessorIndex
- )
-/*++
-
-Routine Description: This is a DebugSupport protocol member function. Hard
- coded to support only 1 processor for now.
-
-Arguments:
- This - The DebugSupport instance
- MaxProcessorIndex - The maximuim supported processor index
-
-Returns:
- Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
-
---*/
-{
- *MaxProcessorIndex = 0;
- return (EFI_SUCCESS);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterPeriodicCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_PERIODIC_CALLBACK NewPeriodicCallback
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- PeriodicCallback - Callback function
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- return ManageIvtEntryTable (EXCEPT_IPF_EXTERNAL_INTERRUPT, NULL, NewPeriodicCallback);
-}
-
-EFI_STATUS
-EFIAPI
-RegisterExceptionCallback (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN EFI_EXCEPTION_CALLBACK NewCallback,
- IN EFI_EXCEPTION_TYPE ExceptionType
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- NewCallback - Callback function
- ExceptionType - Which exception to hook
-
-Returns:
-
- EFI_STATUS - anything other than EFI_SUCCESS indicates the callback was not registered.
-
---*/
-{
- return ManageIvtEntryTable (
- ExceptionType,
- (BUNDLE *) ((EFI_PLABEL *) HookStub)->EntryPoint,
- NewCallback
- );
-}
-
-EFI_STATUS
-EFIAPI
-InvalidateInstructionCache (
- IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
- IN UINTN ProcessorIndex,
- IN VOID *Start,
- IN UINTN Length
- )
-/*++
-
-Routine Description:
- DebugSupport protocol member function. Calls assembly routine to flush cache.
-
-Arguments:
- This - The DebugSupport instance
- ProcessorIndex - Which processor the callback applies to.
- Start - Physical base of the memory range to be invalidated
- Length - mininum number of bytes in instruction cache to invalidate
-
-Returns:
- EFI_SUCCESS
-
---*/
-{
- InstructionCacheFlush (Start, Length);
- return (EFI_SUCCESS);
-}
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