diff options
Diffstat (limited to 'SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c')
| -rw-r--r-- | SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c | 56 |
1 files changed, 40 insertions, 16 deletions
diff --git a/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c b/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c index cc49dc0a59..f8e3f6c1ab 100644 --- a/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c +++ b/SourceLevelDebugPkg/Library/DebugAgent/DxeDebugAgent/DxeDebugAgentLib.c @@ -1,7 +1,7 @@ /** @file
Debug Agent library implementition for Dxe Core and Dxr modules.
- Copyright (c) 2010, Intel Corporation. All rights reserved.<BR>
+ Copyright (c) 2010 - 2012, 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
@@ -15,13 +15,9 @@ #include "DxeDebugAgentLib.h"
DEBUG_AGENT_MAILBOX mMailbox;
-
DEBUG_AGENT_MAILBOX *mMailboxPointer;
-
IA32_IDT_GATE_DESCRIPTOR mIdtEntryTable[33];
-
-BOOLEAN mConfigurationTableNeeded = FALSE;
-
+BOOLEAN mDxeCoreFlag = FALSE;
CONST BOOLEAN MultiProcessorDebugSupport = TRUE;
/**
@@ -31,8 +27,7 @@ CONST BOOLEAN MultiProcessorDebugSupport = TRUE; @param[in] ImageHandle The firmware allocated handle for the EFI image.
@param[in] SystemTable A pointer to the EFI System Table.
- @retval RETURN_SUCCESS Allocate the global memory space to store guid and function tables.
- @retval RETURN_OUT_OF_RESOURCES No enough memory to allocated.
+ @retval RETURN_SUCCESS Allocate the global memory space to store guid and function tables.
**/
RETURN_STATUS
@@ -44,11 +39,34 @@ DxeDebugAgentLibConstructor ( {
EFI_STATUS Status;
EFI_PHYSICAL_ADDRESS Address;
+ EFI_EVENT Event;
+ VOID *EventRegistration;
- if (!mConfigurationTableNeeded) {
+ if (!mDxeCoreFlag) {
return RETURN_SUCCESS;
}
+ Status = gBS->CreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ InstallSerialIoNotification,
+ NULL,
+ &Event
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ //
+ // Register for protocol notifications on this event
+ //
+
+ Status = gBS->RegisterProtocolNotify (
+ &gEfiPcdProtocolGuid,
+ Event,
+ &EventRegistration
+ );
+
+ ASSERT_EFI_ERROR (Status);
+
Address = 0;
Status = gBS->AllocatePages (
AllocateAnyPages,
@@ -56,9 +74,7 @@ DxeDebugAgentLibConstructor ( EFI_SIZE_TO_PAGES (sizeof (DEBUG_AGENT_MAILBOX)),
&Address
);
- if (EFI_ERROR (Status)) {
- return Status;
- }
+ ASSERT_EFI_ERROR (Status);
CopyMem (
(UINT8 *) (UINTN) Address,
@@ -68,7 +84,10 @@ DxeDebugAgentLibConstructor ( mMailboxPointer = (DEBUG_AGENT_MAILBOX *) (UINTN) Address;
- return gBS->InstallConfigurationTable (&gEfiDebugAgentGuid, (VOID *) mMailboxPointer);
+ Status = gBS->InstallConfigurationTable (&gEfiDebugAgentGuid, (VOID *) mMailboxPointer);
+ ASSERT_EFI_ERROR (Status);
+
+ return Status;
}
/**
@@ -168,8 +187,13 @@ InitializeDebugAgent ( //
// Try to get Mailbox from GUIDed HOB.
//
- mConfigurationTableNeeded = TRUE;
+ mDxeCoreFlag = TRUE;
Mailbox = GetMailboxFromHob (Context);
+
+ //
+ // Clear Break CPU index value
+ //
+ mDebugMpContext.BreakAtCpuIndex = (UINT32) -1;
} else if (InitFlag == DEBUG_AGENT_INIT_DXE_AP) {
@@ -189,7 +213,6 @@ InitializeDebugAgent ( // If Mailbox exists, copy it into one global variable.
//
CopyMem (&mMailbox, Mailbox, sizeof (DEBUG_AGENT_MAILBOX));
- mMailbox.DebugPortHandle = 0;
} else {
//
// If Mailbox not exists, used the local Mailbox.
@@ -207,6 +230,7 @@ InitializeDebugAgent ( 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);
}
@@ -218,7 +242,7 @@ InitializeDebugAgent ( //
// Initialize debug communication port
//
- mMailboxPointer->DebugPortHandle = (UINT64) (UINTN)DebugPortInitialize (NULL, NULL);
+ mMailboxPointer->DebugPortHandle = (UINT64) (UINTN)DebugPortInitialize ((VOID *)(UINTN)mMailbox.DebugPortHandle, NULL);
InitializeSpinLock (&mDebugMpContext.MpContextSpinLock);
InitializeSpinLock (&mDebugMpContext.DebugPortSpinLock);
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