mirror of https://github.com/acidanthera/audk.git
316 lines
6.9 KiB
C
316 lines
6.9 KiB
C
/**@file
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X64 specific debug support macros, typedefs and prototypes.
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Copyright (c) 2006, Intel Corporation
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _PLDEBUG_SUPPORT_H
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#define _PLDEBUG_SUPPORT_H
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#define NUM_IDT_ENTRIES 0x78
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#define SYSTEM_TIMER_VECTOR 0x68
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#define VECTOR_ENTRY_PAGES 1
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#define CopyDescriptor(Dest, Src) CopyMem ((Dest), (Src), sizeof (DESCRIPTOR))
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#define ZeroDescriptor(Dest) CopyDescriptor ((Dest), &NullDesc)
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#define ReadIdt(Vector, Dest) CopyDescriptor ((Dest), &((GetIdtr ())[(Vector)]))
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#define WriteIdt(Vector, Src) CopyDescriptor (&((GetIdtr ())[(Vector)]), (Src))
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#define CompareDescriptor(Desc1, Desc2) CompareMem ((Desc1), (Desc2), sizeof (DESCRIPTOR))
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#define EFI_ISA IsaX64
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#define FF_FXSR (1 << 24)
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typedef struct {
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UINT64 Low;
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UINT64 High;
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} DESCRIPTOR;
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typedef struct {
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DESCRIPTOR OrigDesc;
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VOID (*OrigVector) (VOID);
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DESCRIPTOR NewDesc;
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VOID (*StubEntry) (VOID);
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VOID (*RegisteredCallback) ();
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} IDT_ENTRY;
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extern EFI_SYSTEM_CONTEXT SystemContext;
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extern UINT8 InterruptEntryStub[];
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extern UINT32 StubSize;
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extern VOID (*OrigVector) (VOID);
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VOID
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CommonIdtEntry (
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VOID
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)
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/*++
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Routine Description:
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Generic IDT entry
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Arguments:
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None
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Returns:
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None
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--*/
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;
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BOOLEAN
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FxStorSupport (
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VOID
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)
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/*++
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Routine Description:
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Check whether FXSTOR is supported
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Arguments:
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None
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Returns:
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TRUE - supported
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FALSE - not supported
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--*/
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;
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DESCRIPTOR *
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GetIdtr (
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VOID
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)
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/*++
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Routine Description:
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Return the physical address of IDTR
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Arguments:
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None
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Returns:
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The physical address of IDTR
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--*/
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;
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VOID
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Vect2Desc (
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DESCRIPTOR * DestDesc,
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VOID (*Vector) (VOID)
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)
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/*++
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Routine Description:
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Encodes an IDT descriptor with the given physical address
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Arguments:
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DestDesc - The IDT descriptor address
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Vector - The interrupt vector entry
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Returns:
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None
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--*/
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;
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BOOLEAN
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WriteInterruptFlag (
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BOOLEAN NewState
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)
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/*++
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Routine Description:
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Programs interrupt flag to the requested state and returns previous
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state.
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Arguments:
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NewState - New interrupt status
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Returns:
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Old interrupt status
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--*/
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;
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EFI_STATUS
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plInitializeDebugSupportDriver (
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VOID
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)
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/*++
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Routine Description:
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Initializes driver's handler registration database.
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This code executes in boot services context.
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Arguments:
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None
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Returns:
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EFI_SUCCESS
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EFI_UNSUPPORTED - if X64 processor does not support FXSTOR/FXRSTOR instructions,
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the context save will fail, so these processor's are not supported.
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EFI_OUT_OF_RESOURCES - not resource to finish initialization
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--*/
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;
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EFI_STATUS
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EFIAPI
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plUnloadDebugSupportDriver (
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IN EFI_HANDLE ImageHandle
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)
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/*++
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Routine Description:
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This is the callback that is written to the LoadedImage protocol instance
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on the image handle. It uninstalls all registered handlers and frees all entry
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stub memory.
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This code executes in boot services context.
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Arguments:
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ImageHandle - The image handle of the unload handler
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Returns:
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EFI_SUCCESS - always return success
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--*/
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;
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//
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// DebugSupport protocol member functions
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//
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EFI_STATUS
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EFIAPI
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GetMaximumProcessorIndex (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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OUT UINTN *MaxProcessorIndex
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)
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/*++
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Routine Description: This is a DebugSupport protocol member function.
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Arguments:
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This - The DebugSupport instance
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MaxProcessorIndex - The maximuim supported processor index
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Returns:
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Always returns EFI_SUCCESS with *MaxProcessorIndex set to 0
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--*/
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;
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EFI_STATUS
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EFIAPI
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RegisterPeriodicCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_PERIODIC_CALLBACK PeriodicCallback
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)
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/*++
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Routine Description: This is a DebugSupport protocol member function.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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PeriodicCallback - Callback function
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Returns:
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EFI_SUCCESS
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EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
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no handler registered for it
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EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
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Other possible return values are passed through from UnHookEntry and HookEntry.
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--*/
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;
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EFI_STATUS
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EFIAPI
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RegisterExceptionCallback (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN EFI_EXCEPTION_CALLBACK NewCallback,
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IN EFI_EXCEPTION_TYPE ExceptionType
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)
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/*++
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Routine Description:
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This is a DebugSupport protocol member function.
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This code executes in boot services context.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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NewCallback - Callback function
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ExceptionType - Which exception to hook
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Returns:
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EFI_SUCCESS
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EFI_INVALID_PARAMETER - requested uninstalling a handler from a vector that has
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no handler registered for it
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EFI_ALREADY_STARTED - requested install to a vector that already has a handler registered.
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Other possible return values are passed through from UnHookEntry and HookEntry.
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--*/
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;
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EFI_STATUS
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EFIAPI
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InvalidateInstructionCache (
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IN EFI_DEBUG_SUPPORT_PROTOCOL *This,
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IN UINTN ProcessorIndex,
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IN VOID *Start,
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IN UINT64 Length
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)
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/*++
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Routine Description:
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This is a DebugSupport protocol member function.
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Calls assembly routine to flush cache.
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Arguments:
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This - The DebugSupport instance
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ProcessorIndex - Which processor the callback applies to.
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Start - Physical base of the memory range to be invalidated
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Length - mininum number of bytes in instruction cache to invalidate
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Returns:
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EFI_SUCCESS - always return success
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--*/
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;
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#endif
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