diff options
author | Guo Mang <mang.guo@intel.com> | 2017-08-02 09:54:47 +0800 |
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committer | Guo Mang <mang.guo@intel.com> | 2017-09-05 19:45:08 +0800 |
commit | 6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8 (patch) | |
tree | 444372d92a0ae8991fe4d15eb3937df43690dfda /SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c | |
parent | b207c6434d7a5a4502975d322312e07017e8a8cb (diff) | |
download | edk2-platforms-6c128c65b5ec0e5b8b5a0ccb165f3afd29e485f8.tar.xz |
Remove core packages since we can get them from edk2 repository
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Guo Mang <mang.guo@intel.com>
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c')
-rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c | 372 |
1 files changed, 0 insertions, 372 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c b/SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c deleted file mode 100644 index 3a759f900d..0000000000 --- a/SourceLevelDebugPkg/Library/DebugAgent/SmmDebugAgent/SmmDebugAgentLib.c +++ /dev/null @@ -1,372 +0,0 @@ -/** @file
- Debug Agent library implementition.
-
- Copyright (c) 2010 - 2015, Intel Corporation. All rights reserved.<BR>
- 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.
-
-**/
-
-#include "SmmDebugAgentLib.h"
-
-DEBUG_AGENT_MAILBOX *mMailboxPointer = NULL;
-DEBUG_AGENT_MAILBOX mLocalMailbox;
-UINTN mSavedDebugRegisters[6];
-IA32_IDT_GATE_DESCRIPTOR mIdtEntryTable[33];
-BOOLEAN mSkipBreakpoint = FALSE;
-
-CHAR8 mWarningMsgIgnoreSmmEntryBreak[] = "Ignore smmentrybreak setting for SMI issued during DXE debugging!\r\n";
-
-/**
- Check if debug agent support multi-processor.
-
- @retval TRUE Multi-processor is supported.
- @retval FALSE Multi-processor is not supported.
-
-**/
-BOOLEAN
-MultiProcessorDebugSupport (
- VOID
- )
-{
- return FALSE;
-}
-
-/**
- Read the Attach/Break-in symbols from the debug port.
-
- @param[in] Handle Pointer to Debug Port handle.
- @param[out] BreakSymbol Returned break symbol.
-
- @retval EFI_SUCCESS Read the symbol in BreakSymbol.
- @retval EFI_NOT_FOUND No read the break symbol.
-
-**/
-EFI_STATUS
-DebugReadBreakSymbol (
- IN DEBUG_PORT_HANDLE Handle,
- OUT UINT8 *BreakSymbol
- )
-{
- //
- // Smm instance has no debug timer to poll break symbol.
- //
- return EFI_NOT_FOUND;
-}
-
-/**
- Get the pointer to Mailbox from the GUIDed HOB.
-
- @return Pointer to Mailbox.
-
-**/
-DEBUG_AGENT_MAILBOX *
-GetMailboxFromHob (
- VOID
- )
-{
- EFI_HOB_GUID_TYPE *GuidHob;
- UINT64 *MailboxLocation;
- DEBUG_AGENT_MAILBOX *Mailbox;
-
- GuidHob = GetFirstGuidHob (&gEfiDebugAgentGuid);
- if (GuidHob == NULL) {
- return NULL;
- }
- MailboxLocation = (UINT64 *) (GET_GUID_HOB_DATA(GuidHob));
- Mailbox = (DEBUG_AGENT_MAILBOX *)(UINTN)(*MailboxLocation);
- VerifyMailboxChecksum (Mailbox);
-
- return Mailbox;
-}
-
-/**
- Get Debug Agent Mailbox pointer.
-
- @return Mailbox pointer.
-
-**/
-DEBUG_AGENT_MAILBOX *
-GetMailboxPointer (
- VOID
- )
-{
- VerifyMailboxChecksum (mMailboxPointer);
- return mMailboxPointer;
-}
-
-/**
- Get debug port handle.
-
- @return Debug port handle.
-
-**/
-DEBUG_PORT_HANDLE
-GetDebugPortHandle (
- VOID
- )
-{
- return (DEBUG_PORT_HANDLE) (UINTN)(GetMailboxPointer()->DebugPortHandle);
-}
-
-/**
- Store debug register when SMI exit.
-
-**/
-VOID
-SaveDebugRegister (
- VOID
- )
-{
- mSavedDebugRegisters[0] = AsmReadDr0 ();
- mSavedDebugRegisters[1] = AsmReadDr1 ();
- mSavedDebugRegisters[2] = AsmReadDr2 ();
- mSavedDebugRegisters[3] = AsmReadDr3 ();
- mSavedDebugRegisters[4] = AsmReadDr6 ();
- mSavedDebugRegisters[5] = AsmReadDr7 ();
-}
-
-/**
- Restore debug register when SMI exit.
-
-**/
-VOID
-RestoreDebugRegister (
- VOID
- )
-{
- AsmWriteDr7 (0);
- AsmWriteDr0 (mSavedDebugRegisters[0]);
- AsmWriteDr1 (mSavedDebugRegisters[1]);
- AsmWriteDr2 (mSavedDebugRegisters[2]);
- AsmWriteDr3 (mSavedDebugRegisters[3]);
- AsmWriteDr6 (mSavedDebugRegisters[4]);
- AsmWriteDr7 (mSavedDebugRegisters[5]);
-}
-
-/**
- Initialize debug agent.
-
- This function is used to set up debug enviroment for source level debug
- in SMM code.
-
- If InitFlag is DEBUG_AGENT_INIT_SMM, it will overirde IDT table entries
- and initialize debug port. It will get debug agent Mailbox from GUIDed HOB,
- it it exists, debug agent wiil copied it into the local Mailbox in SMM space.
- it will overirde IDT table entries and initialize debug port. Context will be
- NULL.
- If InitFlag is DEBUG_AGENT_INIT_ENTER_SMI, debug agent will save Debug
- Registers and get local Mailbox in SMM space. Context will be NULL.
- If InitFlag is DEBUG_AGENT_INIT_EXIT_SMI, debug agent will restore Debug
- Registers. Context will be NULL.
-
- @param[in] InitFlag Init flag is used to decide initialize process.
- @param[in] Context Context needed according to InitFlag.
- @param[in] Function Continue function called by debug agent library; it was
- optional.
-
-**/
-VOID
-EFIAPI
-InitializeDebugAgent (
- IN UINT32 InitFlag,
- IN VOID *Context, OPTIONAL
- IN DEBUG_AGENT_CONTINUE Function OPTIONAL
- )
-{
- EFI_STATUS Status;
- UINT64 DebugPortHandle;
- IA32_IDT_GATE_DESCRIPTOR IdtEntry[33];
- IA32_DESCRIPTOR IdtDescriptor;
- IA32_DESCRIPTOR *Ia32Idtr;
- IA32_IDT_ENTRY *Ia32IdtEntry;
- IA32_DESCRIPTOR Idtr;
- UINT16 IdtEntryCount;
- DEBUG_AGENT_MAILBOX *Mailbox;
- UINT64 *MailboxLocation;
- UINT32 DebugTimerFrequency;
- BOOLEAN PeriodicMode;
- UINTN TimerCycle;
-
- switch (InitFlag) {
- case DEBUG_AGENT_INIT_SMM:
- //
- // Install configuration table for persisted vector handoff info
- //
- Status = gSmst->SmmInstallConfigurationTable (
- gSmst,
- &gEfiVectorHandoffTableGuid,
- (VOID *) &mVectorHandoffInfoDebugAgent[0],
- sizeof (EFI_VECTOR_HANDOFF_INFO) * mVectorHandoffInfoCount
- );
- if (EFI_ERROR (Status)) {
- DEBUG ((EFI_D_ERROR, "DebugAgent: Cannot install configuration table for persisted vector handoff info!\n"));
- CpuDeadLoop ();
- }
- //
- // Check if Debug Agent initialized in DXE phase
- //
- Status = EfiGetSystemConfigurationTable (&gEfiDebugAgentGuid, (VOID **) &Mailbox);
- if (Status == EFI_SUCCESS && Mailbox != NULL) {
- VerifyMailboxChecksum (Mailbox);
- mMailboxPointer = Mailbox;
- break;
- }
- //
- // Check if Debug Agent initialized in SEC/PEI phase
- //
- Mailbox = GetMailboxFromHob ();
- if (Mailbox != NULL) {
- mMailboxPointer = Mailbox;
- break;
- }
- //
- // Debug Agent was not initialized before, use the local mailbox.
- //
- ZeroMem (&mLocalMailbox, sizeof (DEBUG_AGENT_MAILBOX));
- Mailbox = &mLocalMailbox;
- //
- // Save original IDT entries
- //
- AsmReadIdtr (&IdtDescriptor);
- CopyMem (&IdtEntry, (VOID *)IdtDescriptor.Base, 33 * sizeof(IA32_IDT_GATE_DESCRIPTOR));
- //
- // Initialized Debug Agent
- //
- InitializeDebugIdt ();
- //
- // Initialize Debug Timer hardware and save its frequency
- //
- InitializeDebugTimer (&DebugTimerFrequency, TRUE);
- UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
-
- DebugPortHandle = (UINT64) (UINTN)DebugPortInitialize ((DEBUG_PORT_HANDLE) (UINTN)Mailbox->DebugPortHandle, NULL);
- UpdateMailboxContent (Mailbox, DEBUG_MAILBOX_DEBUG_PORT_HANDLE_INDEX, DebugPortHandle);
- mMailboxPointer = Mailbox;
- //
- // Trigger one software interrupt to inform HOST
- //
- TriggerSoftInterrupt (SYSTEM_RESET_SIGNATURE);
-
- SetDebugFlag (DEBUG_AGENT_FLAG_MEMORY_READY, 1);
- //
- // Memory has been ready
- //
- if (IsHostAttached ()) {
- //
- // Trigger one software interrupt to inform HOST
- //
- TriggerSoftInterrupt (MEMORY_READY_SIGNATURE);
- }
- //
- // Find and report PE/COFF image info to HOST
- //
- FindAndReportModuleImageInfo (SIZE_4KB);
- //
- // Restore saved IDT entries
- //
- CopyMem ((VOID *)IdtDescriptor.Base, &IdtEntry, 33 * sizeof(IA32_IDT_GATE_DESCRIPTOR));
-
- break;
-
- case DEBUG_AGENT_INIT_ENTER_SMI:
- SaveDebugRegister ();
- InitializeDebugIdt ();
- //
- // Check if CPU APIC Timer is working, otherwise initialize it.
- //
- GetApicTimerState (NULL, &PeriodicMode, NULL);
- TimerCycle = GetApicTimerInitCount ();
- if (!PeriodicMode || TimerCycle == 0) {
- InitializeDebugTimer (NULL, FALSE);
- }
- Mailbox = GetMailboxPointer ();
- if (GetDebugFlag (DEBUG_AGENT_FLAG_AGENT_IN_PROGRESS) == 1) {
- //
- // If Debug Agent has been communicaton state with HOST, we need skip
- // any break points set in SMM, set Skip Breakpoint flag
- //
- mSkipBreakpoint = TRUE;
- }
- if (GetDebugFlag (DEBUG_AGENT_FLAG_BREAK_ON_NEXT_SMI) == 1) {
- if (mSkipBreakpoint) {
- //
- // Print warning message if ignore smm entry break
- //
- DebugPortWriteBuffer ((DEBUG_PORT_HANDLE) (UINTN)Mailbox->DebugPortHandle,
- (UINT8 *)mWarningMsgIgnoreSmmEntryBreak,
- AsciiStrLen (mWarningMsgIgnoreSmmEntryBreak)
- );
- } else {
- //
- // If SMM entry break is set, SMM code will be break at here.
- //
- CpuBreakpoint ();
- }
- }
- break;
-
- case DEBUG_AGENT_INIT_EXIT_SMI:
- Mailbox = GetMailboxPointer ();
- //
- // Clear Skip Breakpoint flag
- //
- mSkipBreakpoint = FALSE;
- RestoreDebugRegister ();
- break;
-
- case DEBUG_AGENT_INIT_THUNK_PEI_IA32TOX64:
- if (Context == NULL) {
- DEBUG ((EFI_D_ERROR, "DebugAgent: Input parameter Context cannot be NULL!\n"));
- CpuDeadLoop ();
- } else {
- Ia32Idtr = (IA32_DESCRIPTOR *) Context;
- Ia32IdtEntry = (IA32_IDT_ENTRY *)(Ia32Idtr->Base);
- MailboxLocation = (UINT64 *) (UINTN) (Ia32IdtEntry[DEBUG_MAILBOX_VECTOR].Bits.OffsetLow +
- (UINT32) (Ia32IdtEntry[DEBUG_MAILBOX_VECTOR].Bits.OffsetHigh << 16));
- mMailboxPointer = (DEBUG_AGENT_MAILBOX *)(UINTN)(*MailboxLocation);
- VerifyMailboxChecksum (mMailboxPointer);
- //
- // Get original IDT address and size.
- //
- AsmReadIdtr ((IA32_DESCRIPTOR *) &Idtr);
- IdtEntryCount = (UINT16) ((Idtr.Limit + 1) / sizeof (IA32_IDT_GATE_DESCRIPTOR));
- if (IdtEntryCount < 33) {
- Idtr.Limit = (UINT16) (sizeof (IA32_IDT_GATE_DESCRIPTOR) * 33 - 1);
- Idtr.Base = (UINTN) &mIdtEntryTable;
- ZeroMem (&mIdtEntryTable, Idtr.Limit + 1);
- AsmWriteIdtr ((IA32_DESCRIPTOR *) &Idtr);
- }
-
- InitializeDebugIdt ();
- //
- // Initialize Debug Timer hardware and save its frequency
- //
- InitializeDebugTimer (&DebugTimerFrequency, TRUE);
- UpdateMailboxContent (mMailboxPointer, DEBUG_MAILBOX_DEBUG_TIMER_FREQUENCY, DebugTimerFrequency);
- //
- // Enable Debug Timer interrupt and CPU interrupt
- //
- SaveAndSetDebugTimerInterrupt (TRUE);
- EnableInterrupts ();
-
- FindAndReportModuleImageInfo (SIZE_4KB);
- }
- break;
-
- default:
- //
- // Only DEBUG_AGENT_INIT_PREMEM_SEC and DEBUG_AGENT_INIT_POSTMEM_SEC are allowed for this
- // Debug Agent library instance.
- //
- DEBUG ((EFI_D_ERROR, "Debug Agent: The InitFlag value is not allowed!\n"));
- CpuDeadLoop ();
- break;
- }
-}
-
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