that are not particularly related to VM execution of EBC instructions.\r
\r
Copyright (c) 2006 - 2011, Intel Corporation. All rights reserved.<BR>\r
-This program and the accompanying materials\r
-are licensed and made available under the terms and conditions of the BSD License\r
-which accompanies this distribution. The full text of the license may be found at\r
-http://opensource.org/licenses/bsd-license.php\r
-\r
-THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
-WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+SPDX-License-Identifier: BSD-2-Clause-Patent\r
\r
**/\r
\r
#include "EbcInt.h"\r
#include "EbcExecute.h"\r
+#include "EbcDebuggerHook.h"\r
\r
//\r
// We'll keep track of all thunks we create in a linked list. Each\r
EFI_EVENT mEbcPeriodicEvent;\r
VM_CONTEXT *mVmPtr = NULL;\r
\r
+/**\r
+ Check whether the emulator supports executing a certain PE/COFF image\r
+\r
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL\r
+ structure\r
+ @param[in] ImageType Whether the image is an application, a boot time\r
+ driver or a runtime driver.\r
+ @param[in] DevicePath Path to device where the image originated\r
+ (e.g., a PCI option ROM)\r
+\r
+ @retval TRUE The image is supported by the emulator\r
+ @retval FALSE The image is not supported by the emulator.\r
+**/\r
+BOOLEAN\r
+EFIAPI\r
+EbcIsImageSupported (\r
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,\r
+ IN UINT16 ImageType,\r
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL\r
+ )\r
+{\r
+ if (ImageType != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION &&\r
+ ImageType != EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) {\r
+ return FALSE;\r
+ }\r
+ return TRUE;\r
+}\r
+\r
+/**\r
+ Register a supported PE/COFF image with the emulator. After this call\r
+ completes successfully, the PE/COFF image may be started as usual, and\r
+ it is the responsibility of the emulator implementation that any branch\r
+ into the code section of the image (including returns from functions called\r
+ from the foreign code) is executed as if it were running on the machine\r
+ type it was built for.\r
+\r
+ @param[in] This This pointer for\r
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL structure\r
+ @param[in] ImageBase The base address in memory of the PE/COFF image\r
+ @param[in] ImageSize The size in memory of the PE/COFF image\r
+ @param[in,out] EntryPoint The entry point of the PE/COFF image. Passed by\r
+ reference so that the emulator may modify it.\r
+\r
+ @retval EFI_SUCCESS The image was registered with the emulator and\r
+ can be started as usual.\r
+ @retval other The image could not be registered.\r
+\r
+ If the PE/COFF machine type or image type are not supported by the emulator,\r
+ then ASSERT().\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+EbcRegisterImage (\r
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,\r
+ IN EFI_PHYSICAL_ADDRESS ImageBase,\r
+ IN UINT64 ImageSize,\r
+ IN OUT EFI_IMAGE_ENTRY_POINT *EntryPoint\r
+ )\r
+{\r
+ DEBUG_CODE_BEGIN ();\r
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;\r
+ EFI_STATUS Status;\r
+\r
+ ZeroMem (&ImageContext, sizeof (ImageContext));\r
+\r
+ ImageContext.Handle = (VOID *)(UINTN)ImageBase;\r
+ ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;\r
+\r
+ Status = PeCoffLoaderGetImageInfo (&ImageContext);\r
+ if (EFI_ERROR (Status)) {\r
+ return Status;\r
+ }\r
+\r
+ ASSERT (ImageContext.Machine == EFI_IMAGE_MACHINE_EBC);\r
+ ASSERT (ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION ||\r
+ ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER);\r
+ DEBUG_CODE_END ();\r
+\r
+ EbcRegisterICacheFlush (NULL,\r
+ (EBC_ICACHE_FLUSH)InvalidateInstructionCacheRange);\r
+\r
+ return EbcCreateThunk (NULL, (VOID *)(UINTN)ImageBase,\r
+ (VOID *)(UINTN)*EntryPoint, (VOID **)EntryPoint);\r
+}\r
+\r
+/**\r
+ Unregister a PE/COFF image that has been registered with the emulator.\r
+ This should be done before the image is unloaded from memory.\r
+\r
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL\r
+ structure\r
+ @param[in] ImageBase The base address in memory of the PE/COFF image\r
+\r
+ @retval EFI_SUCCESS The image was unregistered with the emulator.\r
+ @retval other Image could not be unloaded.\r
+**/\r
+EFI_STATUS\r
+EFIAPI\r
+EbcUnregisterImage (\r
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,\r
+ IN EFI_PHYSICAL_ADDRESS ImageBase\r
+ )\r
+{\r
+ return EbcUnloadImage (NULL, (VOID *)(UINTN)ImageBase);\r
+}\r
+\r
+STATIC EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL mPeCoffEmuProtocol = {\r
+ EbcIsImageSupported,\r
+ EbcRegisterImage,\r
+ EbcUnregisterImage,\r
+ EDKII_PECOFF_IMAGE_EMULATOR_VERSION,\r
+ EFI_IMAGE_MACHINE_EBC\r
+};\r
\r
/**\r
Initializes the VM EFI interface. Allocates memory for the VM interface\r
// Add the protocol so someone can locate us if we haven't already.\r
//\r
if (!Installed) {\r
- Status = gBS->InstallProtocolInterface (\r
+ Status = gBS->InstallMultipleProtocolInterfaces (\r
&ImageHandle,\r
- &gEfiEbcProtocolGuid,\r
- EFI_NATIVE_INTERFACE,\r
- EbcProtocol\r
+ &gEfiEbcProtocolGuid, EbcProtocol,\r
+ &gEdkiiPeCoffImageEmulatorProtocolGuid, &mPeCoffEmuProtocol,\r
+ NULL\r
);\r
if (EFI_ERROR (Status)) {\r
FreePool (EbcProtocol);\r
InitEbcVmTestProtocol (&ImageHandle);\r
DEBUG_CODE_END ();\r
\r
+ EbcDebuggerHookInit (ImageHandle, EbcDebugProtocol);\r
+\r
return EFI_SUCCESS;\r
\r
ErrorExit:\r
IN EFI_SYSTEM_CONTEXT SystemContext\r
)\r
{\r
+ //\r
+ // We print debug information to let user know what happen.\r
+ //\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ "EBC Interrupter Version - 0x%016lx\n",\r
+ (UINT64) (((VM_MAJOR_VERSION & 0xFFFF) << 16) | ((VM_MINOR_VERSION & 0xFFFF)))\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ "Exception Type - 0x%016lx\n",\r
+ (UINT64)(UINTN)InterruptType\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " R0 - 0x%016lx, R1 - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->R0,\r
+ SystemContext.SystemContextEbc->R1\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " R2 - 0x%016lx, R3 - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->R2,\r
+ SystemContext.SystemContextEbc->R3\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " R4 - 0x%016lx, R5 - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->R4,\r
+ SystemContext.SystemContextEbc->R5\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " R6 - 0x%016lx, R7 - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->R6,\r
+ SystemContext.SystemContextEbc->R7\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " Flags - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->Flags\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " ControlFlags - 0x%016lx\n",\r
+ SystemContext.SystemContextEbc->ControlFlags\r
+ ));\r
+ DEBUG ((\r
+ EFI_D_ERROR,\r
+ " Ip - 0x%016lx\n\n",\r
+ SystemContext.SystemContextEbc->Ip\r
+ ));\r
+\r
//\r
// We deadloop here to make it easy to debug this issue.\r
//\r
- ASSERT (FALSE);\r
+ CpuDeadLoop ();\r
\r
return ;\r
}\r
// Now free up the image list element\r
//\r
FreePool (ImageList);\r
+\r
+ EbcDebuggerHookEbcUnloadImage (ImageHandle);\r
+\r
return EFI_SUCCESS;\r
}\r
\r
return EFI_UNSUPPORTED;\r
}\r
\r
+/**\r
+ Allocates a buffer of type EfiBootServicesCode.\r
+\r
+ @param AllocationSize The number of bytes to allocate.\r
+\r
+ @return A pointer to the allocated buffer or NULL if allocation fails.\r
+\r
+**/\r
+VOID *\r
+EFIAPI\r
+EbcAllocatePoolForThunk (\r
+ IN UINTN AllocationSize\r
+ )\r
+{\r
+ VOID *Buffer;\r
+ EFI_STATUS Status;\r
+\r
+ Status = gBS->AllocatePool (EfiBootServicesCode, AllocationSize, &Buffer);\r
+ if (EFI_ERROR (Status)) {\r
+ return NULL;\r
+ }\r
+ return Buffer;\r
+}\r
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