* [PATCH v5 1/7] MdeModulePkg: introduce PE/COFF image emulator protocol
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images Ard Biesheuvel
` (5 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Introduce a protocol that can be invoked by the image loading services
to execute foreign architecture PE/COFF images via an emulator.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Include/Protocol/PeCoffImageEmulator.h | 107 ++++++++++++++++++++
MdeModulePkg/MdeModulePkg.dec | 4 +
2 files changed, 111 insertions(+)
diff --git a/MdeModulePkg/Include/Protocol/PeCoffImageEmulator.h b/MdeModulePkg/Include/Protocol/PeCoffImageEmulator.h
new file mode 100644
index 000000000000..1ca302440e4a
--- /dev/null
+++ b/MdeModulePkg/Include/Protocol/PeCoffImageEmulator.h
@@ -0,0 +1,107 @@
+/** @file
+ Copyright (c) 2019, Linaro, Ltd. 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.
+
+**/
+
+#ifndef PECOFF_IMAGE_EMULATOR_PROTOCOL_GUID_H
+#define PECOFF_IMAGE_EMULATOR_PROTOCOL_GUID_H
+
+#define EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL_GUID \
+ { 0x96F46153, 0x97A7, 0x4793, { 0xAC, 0xC1, 0xFA, 0x19, 0xBF, 0x78, 0xEA, 0x97 } }
+
+typedef struct _EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL;
+
+/**
+ Check whether the emulator supports executing a certain PE/COFF image
+
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
+ structure
+ @param[in] ImageType Whether the image is an application, a boot time
+ driver or a runtime driver.
+ @param[in] DevicePath Path to device where the image originated
+ (e.g., a PCI option ROM)
+
+ @retval TRUE The image is supported by the emulator
+ @retval FALSE The image is not supported by the emulator.
+**/
+typedef
+BOOLEAN
+(EFIAPI *EDKII_PECOFF_IMAGE_EMULATOR_IS_IMAGE_SUPPORTED) (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN UINT16 ImageType,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL
+ );
+
+/**
+ Register a supported PE/COFF image with the emulator. After this call
+ completes successfully, the PE/COFF image may be started as usual, and
+ it is the responsibility of the emulator implementation that any branch
+ into the code section of the image (including returns from functions called
+ from the foreign code) is executed as if it were running on the machine
+ type it was built for.
+
+ @param[in] This This pointer for
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL structure
+ @param[in] ImageBase The base address in memory of the PE/COFF image
+ @param[in] ImageSize The size in memory of the PE/COFF image
+ @param[in,out] EntryPoint The entry point of the PE/COFF image. Passed by
+ reference so that the emulator may modify it.
+
+ @retval EFI_SUCCESS The image was registered with the emulator and
+ can be started as usual.
+ @retval other The image could not be registered.
+
+ If the PE/COFF machine type or image type are not supported by the emulator,
+ then ASSERT().
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PECOFF_IMAGE_EMULATOR_REGISTER_IMAGE) (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS ImageBase,
+ IN UINT64 ImageSize,
+ IN OUT EFI_IMAGE_ENTRY_POINT *EntryPoint
+ );
+
+/**
+ Unregister a PE/COFF image that has been registered with the emulator.
+ This should be done before the image is unloaded from memory.
+
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
+ structure
+ @param[in] ImageBase The base address in memory of the PE/COFF image
+
+ @retval EFI_SUCCESS The image was unregistered with the emulator.
+ @retval other Image could not be unloaded.
+**/
+typedef
+EFI_STATUS
+(EFIAPI *EDKII_PECOFF_IMAGE_EMULATOR_UNREGISTER_IMAGE) (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS ImageBase
+ );
+
+#define EDKII_PECOFF_IMAGE_EMULATOR_VERSION 0x1
+
+typedef struct _EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL {
+ EDKII_PECOFF_IMAGE_EMULATOR_IS_IMAGE_SUPPORTED IsImageSupported;
+ EDKII_PECOFF_IMAGE_EMULATOR_REGISTER_IMAGE RegisterImage;
+ EDKII_PECOFF_IMAGE_EMULATOR_UNREGISTER_IMAGE UnregisterImage;
+
+ // Protocol version implemented by the emulator
+ UINT32 Version;
+ // The machine type implemented by the emulator
+ UINT16 MachineType;
+} EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL;
+
+extern EFI_GUID gEdkiiPeCoffImageEmulatorProtocolGuid;
+
+#endif
diff --git a/MdeModulePkg/MdeModulePkg.dec b/MdeModulePkg/MdeModulePkg.dec
index a2130bc43991..c2b4e7f69367 100644
--- a/MdeModulePkg/MdeModulePkg.dec
+++ b/MdeModulePkg/MdeModulePkg.dec
@@ -629,6 +629,10 @@
## Include/Protocol/AtaAtapiPolicy.h
gEdkiiAtaAtapiPolicyProtocolGuid = { 0xe59cd769, 0x5083, 0x4f26,{ 0x90, 0x94, 0x6c, 0x91, 0x9f, 0x91, 0x6c, 0x4e } }
+
+ ## Include/Protocol/PeCoffImageEmulator.h
+ gEdkiiPeCoffImageEmulatorProtocolGuid = { 0x96f46153, 0x97a7, 0x4793, { 0xac, 0xc1, 0xfa, 0x19, 0xbf, 0x78, 0xea, 0x97 } }
+
#
# [Error.gEfiMdeModulePkgTokenSpaceGuid]
# 0x80000001 | Invalid value provided.
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 1/7] MdeModulePkg: introduce PE/COFF image emulator protocol Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 20:21 ` Michael D Kinney
2019-04-11 18:58 ` [PATCH v5 3/7] MdeModulePkg/PciBusDxe: dispatch option ROMs for foreign architectures Ard Biesheuvel
` (4 subsequent siblings)
6 siblings, 1 reply; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
When encountering PE/COFF images that cannot be supported natively,
attempt to locate an instance of the PE/COFF image emulator protocol,
and if it supports the image, proceed with loading it and register it
with the emulator.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Core/Dxe/DxeMain.h | 3 +
MdeModulePkg/Core/Dxe/DxeMain.inf | 1 +
MdeModulePkg/Core/Dxe/Image/Image.c | 170 ++++++++++++++++++--
3 files changed, 163 insertions(+), 11 deletions(-)
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h
index 2dec9da5e35b..48ec30a48aa2 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.h
+++ b/MdeModulePkg/Core/Dxe/DxeMain.h
@@ -53,6 +53,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/TcgService.h>
#include <Protocol/HiiPackageList.h>
#include <Protocol/SmmBase2.h>
+#include <Protocol/PeCoffImageEmulator.h>
#include <Guid/MemoryTypeInformation.h>
#include <Guid/FirmwareFileSystem2.h>
#include <Guid/FirmwareFileSystem3.h>
@@ -228,6 +229,8 @@ typedef struct {
UINT16 Machine;
/// EBC Protocol pointer
EFI_EBC_PROTOCOL *Ebc;
+ /// PE/COFF Image Emulator Protocol pointer
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *PeCoffEmu;
/// Runtime image list
EFI_RUNTIME_IMAGE_ENTRY *RuntimeData;
/// Pointer to Loaded Image Device Path Protocol
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf b/MdeModulePkg/Core/Dxe/DxeMain.inf
index 10375443c0f4..ce6fc19be5e4 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.inf
+++ b/MdeModulePkg/Core/Dxe/DxeMain.inf
@@ -162,6 +162,7 @@
gEfiHiiPackageListProtocolGuid ## SOMETIMES_PRODUCES
gEfiEbcProtocolGuid ## SOMETIMES_CONSUMES
gEfiSmmBase2ProtocolGuid ## SOMETIMES_CONSUMES
+ gEdkiiPeCoffImageEmulatorProtocolGuid ## SOMETIMES_CONSUMES
# Arch Protocols
gEfiBdsArchProtocolGuid ## CONSUMES
diff --git a/MdeModulePkg/Core/Dxe/Image/Image.c b/MdeModulePkg/Core/Dxe/Image/Image.c
index eddca140ee1a..d00e50747040 100644
--- a/MdeModulePkg/Core/Dxe/Image/Image.c
+++ b/MdeModulePkg/Core/Dxe/Image/Image.c
@@ -29,6 +29,15 @@ LOAD_PE32_IMAGE_PRIVATE_DATA mLoadPe32PrivateData = {
}
};
+typedef struct {
+ LIST_ENTRY Link;
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *Emulator;
+ UINT16 MachineType;
+} EMULATOR_ENTRY;
+
+STATIC LIST_ENTRY mAvailableEmulators;
+STATIC EFI_EVENT mPeCoffEmuProtocolRegistrationEvent;
+STATIC VOID *mPeCoffEmuProtocolNotifyRegistration;
//
// This code is needed to build the Image handle for the DXE Core
@@ -67,6 +76,7 @@ LOADED_IMAGE_PRIVATE_DATA mCorePrivateImage = {
NULL, // JumpContext
0, // Machine
NULL, // Ebc
+ NULL, // PeCoffEmu
NULL, // RuntimeData
NULL // LoadedImageDevicePath
};
@@ -118,6 +128,61 @@ GetMachineTypeName (
return L"<Unknown>";
}
+/**
+ Notification event handler registered by CoreInitializeImageServices () to
+ keep track of which PE/COFF image emulators are available.
+
+ @param Event The Event that is being processed, not used.
+ @param Context Event Context, not used.
+
+**/
+STATIC
+VOID
+EFIAPI
+PeCoffEmuProtocolNotify (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ EFI_STATUS Status;
+ UINTN BufferSize;
+ EFI_HANDLE EmuHandle;
+ EMULATOR_ENTRY *Entry;
+
+ EmuHandle = NULL;
+
+ while (TRUE) {
+ BufferSize = sizeof EmuHandle;
+ Status = CoreLocateHandle (
+ ByRegisterNotify,
+ NULL,
+ mPeCoffEmuProtocolNotifyRegistration,
+ &BufferSize,
+ &EmuHandle
+ );
+ if (EFI_ERROR (Status)) {
+ //
+ // If no more notification events exit
+ //
+ return;
+ }
+
+ Entry = AllocateZeroPool (sizeof *Entry);
+ ASSERT (Entry != NULL);
+
+ Status = CoreHandleProtocol (
+ EmuHandle,
+ &gEdkiiPeCoffImageEmulatorProtocolGuid,
+ (VOID **)&Entry->Emulator
+ );
+ ASSERT_EFI_ERROR (Status);
+
+ Entry->MachineType = Entry->Emulator->MachineType;
+
+ InsertTailList (&mAvailableEmulators, &Entry->Link);
+ }
+}
+
/**
Add the Image Services to EFI Boot Services Table and install the protocol
interfaces for this image.
@@ -192,6 +257,30 @@ CoreInitializeImageServices (
gDxeCoreImageHandle = Image->Handle;
gDxeCoreLoadedImage = &Image->Info;
+ //
+ // Create the PE/COFF emulator protocol registration event
+ //
+ Status = CoreCreateEvent (
+ EVT_NOTIFY_SIGNAL,
+ TPL_CALLBACK,
+ PeCoffEmuProtocolNotify,
+ NULL,
+ &mPeCoffEmuProtocolRegistrationEvent
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ //
+ // Register for protocol notifications on this event
+ //
+ Status = CoreRegisterProtocolNotify (
+ &gEdkiiPeCoffImageEmulatorProtocolGuid,
+ mPeCoffEmuProtocolRegistrationEvent,
+ &mPeCoffEmuProtocolNotifyRegistration
+ );
+ ASSERT_EFI_ERROR(Status);
+
+ InitializeListHead (&mAvailableEmulators);
+
if (FeaturePcdGet (PcdFrameworkCompatibilitySupport)) {
//
// Export DXE Core PE Loader functionality for backward compatibility.
@@ -425,6 +514,49 @@ GetPeCoffImageFixLoadingAssignedAddress(
DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE FIXED INFO: Loading module at fixed address 0x%11p. Status = %r \n", (VOID *)(UINTN)(ImageContext->ImageAddress), Status));
return Status;
}
+
+/**
+ Decides whether a PE/COFF image can execute on this system, either natively
+ or via emulation/interpretation. In the latter case, the PeCoffEmu member
+ of the LOADED_IMAGE_PRIVATE_DATA struct pointer is populated with a pointer
+ to the emulator protocol that supports this image.
+
+ @param[in] Image LOADED_IMAGE_PRIVATE_DATA struct pointer
+
+ @retval TRUE The image is supported
+ @retval FALSE The image is not supported
+
+**/
+STATIC
+BOOLEAN
+CoreIsImageTypeSupported (
+ IN OUT LOADED_IMAGE_PRIVATE_DATA *Image
+ )
+{
+ LIST_ENTRY *Link;
+ EMULATOR_ENTRY *Entry;
+
+ for (Link = GetFirstNode (&mAvailableEmulators);
+ !IsNull (&mAvailableEmulators, Link);
+ Link = GetNextNode (&mAvailableEmulators, Link)) {
+
+ Entry = BASE_CR (Link, EMULATOR_ENTRY, Link);
+ if (Entry->MachineType != Image->ImageContext.Machine) {
+ continue;
+ }
+
+ if (Entry->Emulator->IsImageSupported (Entry->Emulator,
+ Image->ImageContext.ImageType,
+ Image->Info.FilePath)) {
+ Image->PeCoffEmu = Entry->Emulator;
+ return TRUE;
+ }
+ }
+
+ return EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->ImageContext.Machine) ||
+ EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Image->ImageContext.Machine);
+}
+
/**
Loads, relocates, and invokes a PE/COFF image
@@ -473,16 +605,14 @@ CoreLoadPeImage (
return Status;
}
- if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->ImageContext.Machine)) {
- if (!EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED (Image->ImageContext.Machine)) {
- //
- // The PE/COFF loader can support loading image types that can be executed.
- // If we loaded an image type that we can not execute return EFI_UNSUPORTED.
- //
- DEBUG ((EFI_D_ERROR, "Image type %s can't be loaded ", GetMachineTypeName(Image->ImageContext.Machine)));
- DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n", GetMachineTypeName(mDxeCoreImageMachineType)));
- return EFI_UNSUPPORTED;
- }
+ if (!CoreIsImageTypeSupported (Image)) {
+ //
+ // The PE/COFF loader can support loading image types that can be executed.
+ // If we loaded an image type that we can not execute return EFI_UNSUPORTED.
+ //
+ DEBUG ((EFI_D_ERROR, "Image type %s can't be loaded ", GetMachineTypeName(Image->ImageContext.Machine)));
+ DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n", GetMachineTypeName(mDxeCoreImageMachineType)));
+ return EFI_UNSUPPORTED;
}
//
@@ -687,6 +817,16 @@ CoreLoadPeImage (
if (EFI_ERROR(Status)) {
goto Done;
}
+ } else if (Image->PeCoffEmu != NULL) {
+ Status = Image->PeCoffEmu->RegisterImage (Image->PeCoffEmu,
+ Image->ImageBasePage,
+ EFI_PAGES_TO_SIZE (Image->NumberOfPages),
+ &Image->EntryPoint);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_LOAD | DEBUG_ERROR,
+ "CoreLoadPeImage: Failed to register foreign image with emulator.\n"));
+ goto Done;
+ }
}
//
@@ -874,6 +1014,13 @@ CoreUnloadAndCloseImage (
Image->Ebc->UnloadImage (Image->Ebc, Image->Handle);
}
+ if (Image->PeCoffEmu != NULL) {
+ //
+ // If the PE/COFF Emulator protocol exists we must unregister the image.
+ //
+ Image->PeCoffEmu->UnregisterImage (Image->PeCoffEmu, Image->ImageBasePage);
+ }
+
//
// Unload image, free Image->ImageContext->ModHandle
//
@@ -1599,7 +1746,8 @@ CoreStartImage (
//
// The image to be started must have the machine type supported by DxeCore.
//
- if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->Machine)) {
+ if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image->Machine) &&
+ Image->PeCoffEmu == NULL) {
//
// Do not ASSERT here, because image might be loaded via EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
// But it can not be started.
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images
2019-04-11 18:58 ` [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images Ard Biesheuvel
@ 2019-04-11 20:21 ` Michael D Kinney
0 siblings, 0 replies; 10+ messages in thread
From: Michael D Kinney @ 2019-04-11 20:21 UTC (permalink / raw)
To: Ard Biesheuvel, devel@edk2.groups.io, Kinney, Michael D,
Kinney, Michael D
Cc: Zimmer, Vincent, Richardson, Brian, Andrew Fish, Leif Lindholm,
Zeng, Star, Dong, Eric, Ni, Ray, Gao, Liming, Carsey, Jaben,
Shi, Steven
Ard,
A could small comments below on use of sizeof().
Mike
> -----Original Message-----
> From: Ard Biesheuvel [mailto:ard.biesheuvel@linaro.org]
> Sent: Thursday, April 11, 2019 11:58 AM
> To: devel@edk2.groups.io
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>; Zimmer,
> Vincent <vincent.zimmer@intel.com>; Richardson, Brian
> <brian.richardson@intel.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>; Andrew Fish
> <afish@apple.com>; Leif Lindholm
> <leif.lindholm@linaro.org>; Zeng, Star
> <star.zeng@intel.com>; Dong, Eric
> <eric.dong@intel.com>; Ni, Ray <ray.ni@intel.com>; Gao,
> Liming <liming.gao@intel.com>; Carsey, Jaben
> <jaben.carsey@intel.com>; Shi, Steven
> <steven.shi@intel.com>
> Subject: [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke
> the emulator protocol for foreign images
>
> When encountering PE/COFF images that cannot be
> supported natively,
> attempt to locate an instance of the PE/COFF image
> emulator protocol,
> and if it supports the image, proceed with loading it
> and register it
> with the emulator.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel
> <ard.biesheuvel@linaro.org>
> ---
> MdeModulePkg/Core/Dxe/DxeMain.h | 3 +
> MdeModulePkg/Core/Dxe/DxeMain.inf | 1 +
> MdeModulePkg/Core/Dxe/Image/Image.c | 170
> ++++++++++++++++++--
> 3 files changed, 163 insertions(+), 11 deletions(-)
>
> diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h
> b/MdeModulePkg/Core/Dxe/DxeMain.h
> index 2dec9da5e35b..48ec30a48aa2 100644
> --- a/MdeModulePkg/Core/Dxe/DxeMain.h
> +++ b/MdeModulePkg/Core/Dxe/DxeMain.h
> @@ -53,6 +53,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS
> OF ANY KIND, EITHER EXPRESS OR IMPLIED.
> #include <Protocol/TcgService.h>
> #include <Protocol/HiiPackageList.h>
> #include <Protocol/SmmBase2.h>
> +#include <Protocol/PeCoffImageEmulator.h>
> #include <Guid/MemoryTypeInformation.h>
> #include <Guid/FirmwareFileSystem2.h>
> #include <Guid/FirmwareFileSystem3.h>
> @@ -228,6 +229,8 @@ typedef struct {
> UINT16 Machine;
> /// EBC Protocol pointer
> EFI_EBC_PROTOCOL *Ebc;
> + /// PE/COFF Image Emulator Protocol pointer
> + EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *PeCoffEmu;
> /// Runtime image list
> EFI_RUNTIME_IMAGE_ENTRY *RuntimeData;
> /// Pointer to Loaded Image Device Path Protocol
> diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf
> b/MdeModulePkg/Core/Dxe/DxeMain.inf
> index 10375443c0f4..ce6fc19be5e4 100644
> --- a/MdeModulePkg/Core/Dxe/DxeMain.inf
> +++ b/MdeModulePkg/Core/Dxe/DxeMain.inf
> @@ -162,6 +162,7 @@
> gEfiHiiPackageListProtocolGuid ##
> SOMETIMES_PRODUCES
> gEfiEbcProtocolGuid ##
> SOMETIMES_CONSUMES
> gEfiSmmBase2ProtocolGuid ##
> SOMETIMES_CONSUMES
> + gEdkiiPeCoffImageEmulatorProtocolGuid ##
> SOMETIMES_CONSUMES
>
> # Arch Protocols
> gEfiBdsArchProtocolGuid ##
> CONSUMES
> diff --git a/MdeModulePkg/Core/Dxe/Image/Image.c
> b/MdeModulePkg/Core/Dxe/Image/Image.c
> index eddca140ee1a..d00e50747040 100644
> --- a/MdeModulePkg/Core/Dxe/Image/Image.c
> +++ b/MdeModulePkg/Core/Dxe/Image/Image.c
> @@ -29,6 +29,15 @@ LOAD_PE32_IMAGE_PRIVATE_DATA
> mLoadPe32PrivateData = {
> }
> };
>
> +typedef struct {
> + LIST_ENTRY Link;
> + EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *Emulator;
> + UINT16 MachineType;
> +} EMULATOR_ENTRY;
> +
> +STATIC LIST_ENTRY
> mAvailableEmulators;
> +STATIC EFI_EVENT
> mPeCoffEmuProtocolRegistrationEvent;
> +STATIC VOID
> *mPeCoffEmuProtocolNotifyRegistration;
>
> //
> // This code is needed to build the Image handle for
> the DXE Core
> @@ -67,6 +76,7 @@ LOADED_IMAGE_PRIVATE_DATA
> mCorePrivateImage = {
> NULL, // JumpContext
> 0, // Machine
> NULL, // Ebc
> + NULL, // PeCoffEmu
> NULL, // RuntimeData
> NULL // LoadedImageDevicePath
> };
> @@ -118,6 +128,61 @@ GetMachineTypeName (
> return L"<Unknown>";
> }
>
> +/**
> + Notification event handler registered by
> CoreInitializeImageServices () to
> + keep track of which PE/COFF image emulators are
> available.
> +
> + @param Event The Event that is being
> processed, not used.
> + @param Context Event Context, not used.
> +
> +**/
> +STATIC
> +VOID
> +EFIAPI
> +PeCoffEmuProtocolNotify (
> + IN EFI_EVENT Event,
> + IN VOID *Context
> + )
> +{
> + EFI_STATUS Status;
> + UINTN BufferSize;
> + EFI_HANDLE EmuHandle;
> + EMULATOR_ENTRY *Entry;
> +
> + EmuHandle = NULL;
> +
> + while (TRUE) {
> + BufferSize = sizeof EmuHandle;
Should be sizeof (EmuHandle);
> + Status = CoreLocateHandle (
> + ByRegisterNotify,
> + NULL,
> + mPeCoffEmuProtocolNotifyRegistration,
> + &BufferSize,
> + &EmuHandle
> + );
> + if (EFI_ERROR (Status)) {
> + //
> + // If no more notification events exit
> + //
> + return;
> + }
> +
> + Entry = AllocateZeroPool (sizeof *Entry);
Should be sizeof (*Entry)
> + ASSERT (Entry != NULL);
> +
> + Status = CoreHandleProtocol (
> + EmuHandle,
> + &gEdkiiPeCoffImageEmulatorProtocolGuid,
> + (VOID **)&Entry->Emulator
> + );
> + ASSERT_EFI_ERROR (Status);
> +
> + Entry->MachineType = Entry->Emulator->MachineType;
> +
> + InsertTailList (&mAvailableEmulators, &Entry-
> >Link);
> + }
> +}
> +
> /**
> Add the Image Services to EFI Boot Services Table
> and install the protocol
> interfaces for this image.
> @@ -192,6 +257,30 @@ CoreInitializeImageServices (
> gDxeCoreImageHandle = Image->Handle;
> gDxeCoreLoadedImage = &Image->Info;
>
> + //
> + // Create the PE/COFF emulator protocol registration
> event
> + //
> + Status = CoreCreateEvent (
> + EVT_NOTIFY_SIGNAL,
> + TPL_CALLBACK,
> + PeCoffEmuProtocolNotify,
> + NULL,
> + &mPeCoffEmuProtocolRegistrationEvent
> + );
> + ASSERT_EFI_ERROR(Status);
> +
> + //
> + // Register for protocol notifications on this event
> + //
> + Status = CoreRegisterProtocolNotify (
> + &gEdkiiPeCoffImageEmulatorProtocolGuid,
> + mPeCoffEmuProtocolRegistrationEvent,
> + &mPeCoffEmuProtocolNotifyRegistration
> + );
> + ASSERT_EFI_ERROR(Status);
> +
> + InitializeListHead (&mAvailableEmulators);
> +
> if (FeaturePcdGet
> (PcdFrameworkCompatibilitySupport)) {
> //
> // Export DXE Core PE Loader functionality for
> backward compatibility.
> @@ -425,6 +514,49 @@
> GetPeCoffImageFixLoadingAssignedAddress(
> DEBUG ((EFI_D_INFO|EFI_D_LOAD, "LOADING MODULE
> FIXED INFO: Loading module at fixed address 0x%11p.
> Status = %r \n", (VOID *)(UINTN)(ImageContext-
> >ImageAddress), Status));
> return Status;
> }
> +
> +/**
> + Decides whether a PE/COFF image can execute on this
> system, either natively
> + or via emulation/interpretation. In the latter case,
> the PeCoffEmu member
> + of the LOADED_IMAGE_PRIVATE_DATA struct pointer is
> populated with a pointer
> + to the emulator protocol that supports this image.
> +
> + @param[in] Image LOADED_IMAGE_PRIVATE_DATA
> struct pointer
> +
> + @retval TRUE The image is supported
> + @retval FALSE The image is not supported
> +
> +**/
> +STATIC
> +BOOLEAN
> +CoreIsImageTypeSupported (
> + IN OUT LOADED_IMAGE_PRIVATE_DATA *Image
> + )
> +{
> + LIST_ENTRY *Link;
> + EMULATOR_ENTRY *Entry;
> +
> + for (Link = GetFirstNode (&mAvailableEmulators);
> + !IsNull (&mAvailableEmulators, Link);
> + Link = GetNextNode (&mAvailableEmulators,
> Link)) {
> +
> + Entry = BASE_CR (Link, EMULATOR_ENTRY, Link);
> + if (Entry->MachineType != Image-
> >ImageContext.Machine) {
> + continue;
> + }
> +
> + if (Entry->Emulator->IsImageSupported (Entry-
> >Emulator,
> + Image-
> >ImageContext.ImageType,
> + Image->Info.FilePath)) {
> + Image->PeCoffEmu = Entry->Emulator;
> + return TRUE;
> + }
> + }
> +
> + return EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image-
> >ImageContext.Machine) ||
> + EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
> (Image->ImageContext.Machine);
> +}
> +
> /**
> Loads, relocates, and invokes a PE/COFF image
>
> @@ -473,16 +605,14 @@ CoreLoadPeImage (
> return Status;
> }
>
> - if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image-
> >ImageContext.Machine)) {
> - if (!EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
> (Image->ImageContext.Machine)) {
> - //
> - // The PE/COFF loader can support loading image
> types that can be executed.
> - // If we loaded an image type that we can not
> execute return EFI_UNSUPORTED.
> - //
> - DEBUG ((EFI_D_ERROR, "Image type %s can't be
> loaded ", GetMachineTypeName(Image-
> >ImageContext.Machine)));
> - DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n",
> GetMachineTypeName(mDxeCoreImageMachineType)));
> - return EFI_UNSUPPORTED;
> - }
> + if (!CoreIsImageTypeSupported (Image)) {
> + //
> + // The PE/COFF loader can support loading image
> types that can be executed.
> + // If we loaded an image type that we can not
> execute return EFI_UNSUPORTED.
> + //
> + DEBUG ((EFI_D_ERROR, "Image type %s can't be
> loaded ", GetMachineTypeName(Image-
> >ImageContext.Machine)));
> + DEBUG ((EFI_D_ERROR, "on %s UEFI system.\n",
> GetMachineTypeName(mDxeCoreImageMachineType)));
> + return EFI_UNSUPPORTED;
> }
>
> //
> @@ -687,6 +817,16 @@ CoreLoadPeImage (
> if (EFI_ERROR(Status)) {
> goto Done;
> }
> + } else if (Image->PeCoffEmu != NULL) {
> + Status = Image->PeCoffEmu->RegisterImage (Image-
> >PeCoffEmu,
> + Image->ImageBasePage,
> + EFI_PAGES_TO_SIZE
> (Image->NumberOfPages),
> + &Image->EntryPoint);
> + if (EFI_ERROR (Status)) {
> + DEBUG ((DEBUG_LOAD | DEBUG_ERROR,
> + "CoreLoadPeImage: Failed to register foreign
> image with emulator.\n"));
> + goto Done;
> + }
> }
>
> //
> @@ -874,6 +1014,13 @@ CoreUnloadAndCloseImage (
> Image->Ebc->UnloadImage (Image->Ebc, Image-
> >Handle);
> }
>
> + if (Image->PeCoffEmu != NULL) {
> + //
> + // If the PE/COFF Emulator protocol exists we must
> unregister the image.
> + //
> + Image->PeCoffEmu->UnregisterImage (Image-
> >PeCoffEmu, Image->ImageBasePage);
> + }
> +
> //
> // Unload image, free Image->ImageContext->ModHandle
> //
> @@ -1599,7 +1746,8 @@ CoreStartImage (
> //
> // The image to be started must have the machine
> type supported by DxeCore.
> //
> - if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image-
> >Machine)) {
> + if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (Image-
> >Machine) &&
> + Image->PeCoffEmu == NULL) {
> //
> // Do not ASSERT here, because image might be
> loaded via EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED
> // But it can not be started.
> --
> 2.17.1
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v5 3/7] MdeModulePkg/PciBusDxe: dispatch option ROMs for foreign architectures
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 1/7] MdeModulePkg: introduce PE/COFF image emulator protocol Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 2/7] MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 4/7] MdeModulePkg/UefiBootManagerLib: allow foreign Driver#### images Ard Biesheuvel
` (3 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Delete the explicit machine type check for option ROM images, and instead,
rely on the LoadImage() boot service to decide whether an option ROM can
be dispatched or not. This permits platforms to ship with emulators to
execute option ROMs that are not native to the processor architecture.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c b/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
index c75ef1a82505..54cf4251cc86 100644
--- a/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
+++ b/MdeModulePkg/Bus/Pci/PciBusDxe/PciOptionRomSupport.c
@@ -699,13 +699,6 @@ ProcessOpRomImage (
goto NextImage;
}
- //
- // Skip the EFI PCI Option ROM image if its machine type is not supported
- //
- if (!EFI_IMAGE_MACHINE_TYPE_SUPPORTED (EfiRomHeader->EfiMachineType)) {
- goto NextImage;
- }
-
//
// Ignore the EFI PCI Option ROM image if it is an EFI application
//
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v5 4/7] MdeModulePkg/UefiBootManagerLib: allow foreign Driver#### images
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
` (2 preceding siblings ...)
2019-04-11 18:58 ` [PATCH v5 3/7] MdeModulePkg/PciBusDxe: dispatch option ROMs for foreign architectures Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 5/7] MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol Ard Biesheuvel
` (2 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Allow PE/COFF images that must execute under emulation for Driver####
options, by removing the redundant machine type check from the BDS code.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Library/UefiBootManagerLib/BmLoadOption.c | 6 ++----
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/MdeModulePkg/Library/UefiBootManagerLib/BmLoadOption.c b/MdeModulePkg/Library/UefiBootManagerLib/BmLoadOption.c
index 7bf96646c690..8e6caaa63548 100644
--- a/MdeModulePkg/Library/UefiBootManagerLib/BmLoadOption.c
+++ b/MdeModulePkg/Library/UefiBootManagerLib/BmLoadOption.c
@@ -1233,10 +1233,8 @@ BmIsLoadOptionPeHeaderValid (
// Check PE32 or PE32+ magic, and machine type
//
OptionalHeader = (EFI_IMAGE_OPTIONAL_HEADER32 *) &PeHeader->Pe32.OptionalHeader;
- if ((OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC ||
- OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) &&
- EFI_IMAGE_MACHINE_TYPE_SUPPORTED (PeHeader->Pe32.FileHeader.Machine)
- ) {
+ if (OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR32_MAGIC ||
+ OptionalHeader->Magic == EFI_IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
//
// Check the Subsystem:
// Driver#### must be of type BootServiceDriver or RuntimeDriver
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v5 5/7] MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
` (3 preceding siblings ...)
2019-04-11 18:58 ` [PATCH v5 4/7] MdeModulePkg/UefiBootManagerLib: allow foreign Driver#### images Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 20:29 ` [edk2-devel] " Michael D Kinney
2019-04-11 18:58 ` [PATCH v5 6/7] MdePkg/UefiBaseType.h: treat EBC as a non-native machine type Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 7/7] MdeModulePkg/DxeCore: remove explicit EBC handling Ard Biesheuvel
6 siblings, 1 reply; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Implement the new EDK2 PE/COFF image emulator protocol so that we can
remove the EBC specific handling in the DXE core and other places in
the core code.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf | 3 +
MdeModulePkg/Universal/EbcDxe/EbcDxe.inf | 3 +
MdeModulePkg/Universal/EbcDxe/EbcInt.c | 123 ++++++++++++++++++++
MdeModulePkg/Universal/EbcDxe/EbcInt.h | 3 +
4 files changed, 132 insertions(+)
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf b/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
index 8f293f5c7c29..c7a9d519b080 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
@@ -89,6 +89,8 @@
BaseMemoryLib
DebugLib
BaseLib
+ CacheMaintenanceLib
+ PeCoffLib
[Protocols]
gEfiDebugSupportProtocolGuid ## PRODUCES
@@ -98,6 +100,7 @@
gEfiEbcSimpleDebuggerProtocolGuid ## SOMETIMES_CONSUMES
gEfiPciRootBridgeIoProtocolGuid ## SOMETIMES_CONSUMES
gEfiSimpleFileSystemProtocolGuid ## SOMETIMES_CONSUMES
+ gEdkiiPeCoffImageEmulatorProtocolGuid ## PRODUCES
[Guids]
gEfiFileInfoGuid ## SOMETIMES_CONSUMES ## GUID
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
index d6ee6194a0c8..ecccf2c57ffe 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
+++ b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
@@ -57,7 +57,9 @@
MdeModulePkg/MdeModulePkg.dec
[LibraryClasses]
+ CacheMaintenanceLib
MemoryAllocationLib
+ PeCoffLib
UefiBootServicesTableLib
BaseMemoryLib
UefiDriverEntryPoint
@@ -68,6 +70,7 @@
[Protocols]
gEfiDebugSupportProtocolGuid ## PRODUCES
gEfiEbcProtocolGuid ## PRODUCES
+ gEdkiiPeCoffImageEmulatorProtocolGuid ## PRODUCES
gEfiEbcVmTestProtocolGuid ## SOMETIMES_PRODUCES
gEfiEbcSimpleDebuggerProtocolGuid ## SOMETIMES_CONSUMES
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcInt.c b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
index 727ba8bcae44..051eb0aaa07b 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcInt.c
+++ b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
@@ -349,6 +349,119 @@ UINTN mStackNum = 0;
EFI_EVENT mEbcPeriodicEvent;
VM_CONTEXT *mVmPtr = NULL;
+/**
+ Check whether the emulator supports executing a certain PE/COFF image
+
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
+ structure
+ @param[in] ImageType Whether the image is an application, a boot time
+ driver or a runtime driver.
+ @param[in] DevicePath Path to device where the image originated
+ (e.g., a PCI option ROM)
+
+ @retval TRUE The image is supported by the emulator
+ @retval FALSE The image is not supported by the emulator.
+**/
+BOOLEAN
+EFIAPI
+EbcIsImageSupported (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN UINT16 ImageType,
+ IN EFI_DEVICE_PATH_PROTOCOL *DevicePath OPTIONAL
+ )
+{
+ if (ImageType != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION &&
+ ImageType != EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) {
+ return FALSE;
+ }
+ return TRUE;
+}
+
+/**
+ Register a supported PE/COFF image with the emulator. After this call
+ completes successfully, the PE/COFF image may be started as usual, and
+ it is the responsibility of the emulator implementation that any branch
+ into the code section of the image (including returns from functions called
+ from the foreign code) is executed as if it were running on the machine
+ type it was built for.
+
+ @param[in] This This pointer for
+ EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL structure
+ @param[in] ImageBase The base address in memory of the PE/COFF image
+ @param[in] ImageSize The size in memory of the PE/COFF image
+ @param[in,out] EntryPoint The entry point of the PE/COFF image. Passed by
+ reference so that the emulator may modify it.
+
+ @retval EFI_SUCCESS The image was registered with the emulator and
+ can be started as usual.
+ @retval other The image could not be registered.
+
+ If the PE/COFF machine type or image type are not supported by the emulator,
+ then ASSERT().
+**/
+EFI_STATUS
+EFIAPI
+EbcRegisterImage (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS ImageBase,
+ IN UINT64 ImageSize,
+ IN OUT EFI_IMAGE_ENTRY_POINT *EntryPoint
+ )
+{
+ DEBUG_CODE_BEGIN ();
+ PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
+ EFI_STATUS Status;
+
+ ZeroMem (&ImageContext, sizeof (ImageContext));
+
+ ImageContext.Handle = (VOID *)(UINTN)ImageBase;
+ ImageContext.ImageRead = PeCoffLoaderImageReadFromMemory;
+
+ Status = PeCoffLoaderGetImageInfo (&ImageContext);
+ if (EFI_ERROR (Status)) {
+ return Status;
+ }
+
+ ASSERT (ImageContext.Machine == EFI_IMAGE_MACHINE_EBC);
+ ASSERT (ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION ||
+ ImageContext.ImageType == EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER);
+ DEBUG_CODE_END ();
+
+ EbcRegisterICacheFlush (NULL,
+ (EBC_ICACHE_FLUSH)InvalidateInstructionCacheRange);
+
+ return EbcCreateThunk (NULL, (VOID *)(UINTN)ImageBase, *EntryPoint,
+ (VOID **)EntryPoint);
+}
+
+/**
+ Unregister a PE/COFF image that has been registered with the emulator.
+ This should be done before the image is unloaded from memory.
+
+ @param[in] This This pointer for EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
+ structure
+ @param[in] ImageBase The base address in memory of the PE/COFF image
+
+ @retval EFI_SUCCESS The image was unregistered with the emulator.
+ @retval other Image could not be unloaded.
+**/
+EFI_STATUS
+EFIAPI
+EbcUnregisterImage (
+ IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
+ IN EFI_PHYSICAL_ADDRESS ImageBase
+ )
+{
+ return EbcUnloadImage (NULL, (VOID *)(UINTN)ImageBase);
+}
+
+EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL mPeCoffEmuProtocol = {
+ EbcIsImageSupported,
+ EbcRegisterImage,
+ EbcUnregisterImage,
+ EDKII_PECOFF_IMAGE_EMULATOR_VERSION,
+ EFI_IMAGE_MACHINE_EBC
+};
/**
Initializes the VM EFI interface. Allocates memory for the VM interface
@@ -449,6 +562,16 @@ InitializeEbcDriver (
}
}
+ Status = gBS->InstallProtocolInterface (
+ &ImageHandle,
+ &gEdkiiPeCoffImageEmulatorProtocolGuid,
+ EFI_NATIVE_INTERFACE,
+ &mPeCoffEmuProtocol
+ );
+ if (EFI_ERROR(Status)) {
+ goto ErrorExit;
+ }
+
Status = InitEBCStack();
if (EFI_ERROR(Status)) {
goto ErrorExit;
diff --git a/MdeModulePkg/Universal/EbcDxe/EbcInt.h b/MdeModulePkg/Universal/EbcDxe/EbcInt.h
index 8aa7a4abbd63..9b25e91f951c 100644
--- a/MdeModulePkg/Universal/EbcDxe/EbcInt.h
+++ b/MdeModulePkg/Universal/EbcDxe/EbcInt.h
@@ -23,9 +23,12 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/Ebc.h>
#include <Protocol/EbcVmTest.h>
#include <Protocol/EbcSimpleDebugger.h>
+#include <Protocol/PeCoffImageEmulator.h>
#include <Library/BaseLib.h>
+#include <Library/CacheMaintenanceLib.h>
#include <Library/DebugLib.h>
+#include <Library/PeCoffLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiBootServicesTableLib.h>
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* Re: [edk2-devel] [PATCH v5 5/7] MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol
2019-04-11 18:58 ` [PATCH v5 5/7] MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol Ard Biesheuvel
@ 2019-04-11 20:29 ` Michael D Kinney
0 siblings, 0 replies; 10+ messages in thread
From: Michael D Kinney @ 2019-04-11 20:29 UTC (permalink / raw)
To: devel@edk2.groups.io, ard.biesheuvel@linaro.org,
Kinney, Michael D
Cc: Zimmer, Vincent, Richardson, Brian, Andrew Fish, Leif Lindholm,
Zeng, Star, Dong, Eric, Ni, Ray, Gao, Liming, Carsey, Jaben,
Shi, Steven
Ard,
Comment below on a VS2015x86 build issue.
Mike
> -----Original Message-----
> From: devel@edk2.groups.io
> [mailto:devel@edk2.groups.io] On Behalf Of Ard
> Biesheuvel
> Sent: Thursday, April 11, 2019 11:58 AM
> To: devel@edk2.groups.io
> Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>; Zimmer,
> Vincent <vincent.zimmer@intel.com>; Richardson, Brian
> <brian.richardson@intel.com>; Kinney, Michael D
> <michael.d.kinney@intel.com>; Andrew Fish
> <afish@apple.com>; Leif Lindholm
> <leif.lindholm@linaro.org>; Zeng, Star
> <star.zeng@intel.com>; Dong, Eric
> <eric.dong@intel.com>; Ni, Ray <ray.ni@intel.com>; Gao,
> Liming <liming.gao@intel.com>; Carsey, Jaben
> <jaben.carsey@intel.com>; Shi, Steven
> <steven.shi@intel.com>
> Subject: [edk2-devel] [PATCH v5 5/7]
> MdeModulePkg/EbcDxe: implement the PE/COFF emulator
> protocol
>
> Implement the new EDK2 PE/COFF image emulator protocol
> so that we can
> remove the EBC specific handling in the DXE core and
> other places in
> the core code.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Ard Biesheuvel
> <ard.biesheuvel@linaro.org>
> ---
> MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf | 3 +
> MdeModulePkg/Universal/EbcDxe/EbcDxe.inf | 3 +
> MdeModulePkg/Universal/EbcDxe/EbcInt.c | 123
> ++++++++++++++++++++
> MdeModulePkg/Universal/EbcDxe/EbcInt.h | 3 +
> 4 files changed, 132 insertions(+)
>
> diff --git
> a/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
> b/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
> index 8f293f5c7c29..c7a9d519b080 100644
> --- a/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
> +++ b/MdeModulePkg/Universal/EbcDxe/EbcDebugger.inf
> @@ -89,6 +89,8 @@
> BaseMemoryLib
> DebugLib
> BaseLib
> + CacheMaintenanceLib
> + PeCoffLib
>
> [Protocols]
> gEfiDebugSupportProtocolGuid ##
> PRODUCES
> @@ -98,6 +100,7 @@
> gEfiEbcSimpleDebuggerProtocolGuid ##
> SOMETIMES_CONSUMES
> gEfiPciRootBridgeIoProtocolGuid ##
> SOMETIMES_CONSUMES
> gEfiSimpleFileSystemProtocolGuid ##
> SOMETIMES_CONSUMES
> + gEdkiiPeCoffImageEmulatorProtocolGuid ##
> PRODUCES
>
> [Guids]
> gEfiFileInfoGuid ##
> SOMETIMES_CONSUMES ## GUID
> diff --git a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
> b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
> index d6ee6194a0c8..ecccf2c57ffe 100644
> --- a/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
> +++ b/MdeModulePkg/Universal/EbcDxe/EbcDxe.inf
> @@ -57,7 +57,9 @@
> MdeModulePkg/MdeModulePkg.dec
>
> [LibraryClasses]
> + CacheMaintenanceLib
> MemoryAllocationLib
> + PeCoffLib
> UefiBootServicesTableLib
> BaseMemoryLib
> UefiDriverEntryPoint
> @@ -68,6 +70,7 @@
> [Protocols]
> gEfiDebugSupportProtocolGuid ##
> PRODUCES
> gEfiEbcProtocolGuid ##
> PRODUCES
> + gEdkiiPeCoffImageEmulatorProtocolGuid ##
> PRODUCES
> gEfiEbcVmTestProtocolGuid ##
> SOMETIMES_PRODUCES
> gEfiEbcSimpleDebuggerProtocolGuid ##
> SOMETIMES_CONSUMES
>
> diff --git a/MdeModulePkg/Universal/EbcDxe/EbcInt.c
> b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
> index 727ba8bcae44..051eb0aaa07b 100644
> --- a/MdeModulePkg/Universal/EbcDxe/EbcInt.c
> +++ b/MdeModulePkg/Universal/EbcDxe/EbcInt.c
> @@ -349,6 +349,119 @@ UINTN mStackNum
> = 0;
> EFI_EVENT mEbcPeriodicEvent;
> VM_CONTEXT *mVmPtr = NULL;
>
> +/**
> + Check whether the emulator supports executing a
> certain PE/COFF image
> +
> + @param[in] This This pointer for
> EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
> + structure
> + @param[in] ImageType Whether the image is an
> application, a boot time
> + driver or a runtime driver.
> + @param[in] DevicePath Path to device where the
> image originated
> + (e.g., a PCI option ROM)
> +
> + @retval TRUE The image is supported by
> the emulator
> + @retval FALSE The image is not supported
> by the emulator.
> +**/
> +BOOLEAN
> +EFIAPI
> +EbcIsImageSupported (
> + IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
> + IN UINT16
> ImageType,
> + IN EFI_DEVICE_PATH_PROTOCOL
> *DevicePath OPTIONAL
> + )
> +{
> + if (ImageType != EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION
> &&
> + ImageType !=
> EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER) {
> + return FALSE;
> + }
> + return TRUE;
> +}
> +
> +/**
> + Register a supported PE/COFF image with the
> emulator. After this call
> + completes successfully, the PE/COFF image may be
> started as usual, and
> + it is the responsibility of the emulator
> implementation that any branch
> + into the code section of the image (including
> returns from functions called
> + from the foreign code) is executed as if it were
> running on the machine
> + type it was built for.
> +
> + @param[in] This This pointer for
> +
> EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL structure
> + @param[in] ImageBase The base address in
> memory of the PE/COFF image
> + @param[in] ImageSize The size in memory of
> the PE/COFF image
> + @param[in,out] EntryPoint The entry point of the
> PE/COFF image. Passed by
> + reference so that the
> emulator may modify it.
> +
> + @retval EFI_SUCCESS The image was
> registered with the emulator and
> + can be started as
> usual.
> + @retval other The image could not be
> registered.
> +
> + If the PE/COFF machine type or image type are not
> supported by the emulator,
> + then ASSERT().
> +**/
> +EFI_STATUS
> +EFIAPI
> +EbcRegisterImage (
> + IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
> *This,
> + IN EFI_PHYSICAL_ADDRESS
> ImageBase,
> + IN UINT64
> ImageSize,
> + IN OUT EFI_IMAGE_ENTRY_POINT
> *EntryPoint
> + )
> +{
> + DEBUG_CODE_BEGIN ();
> + PE_COFF_LOADER_IMAGE_CONTEXT ImageContext;
> + EFI_STATUS Status;
> +
> + ZeroMem (&ImageContext, sizeof (ImageContext));
> +
> + ImageContext.Handle = (VOID *)(UINTN)ImageBase;
> + ImageContext.ImageRead =
> PeCoffLoaderImageReadFromMemory;
> +
> + Status = PeCoffLoaderGetImageInfo (&ImageContext);
> + if (EFI_ERROR (Status)) {
> + return Status;
> + }
> +
> + ASSERT (ImageContext.Machine ==
> EFI_IMAGE_MACHINE_EBC);
> + ASSERT (ImageContext.ImageType ==
> EFI_IMAGE_SUBSYSTEM_EFI_APPLICATION ||
> + ImageContext.ImageType ==
> EFI_IMAGE_SUBSYSTEM_EFI_BOOT_SERVICE_DRIVER);
> + DEBUG_CODE_END ();
> +
> + EbcRegisterICacheFlush (NULL,
> +
> (EBC_ICACHE_FLUSH)InvalidateInstructionCacheRange);
> +
> + return EbcCreateThunk (NULL, (VOID
> *)(UINTN)ImageBase, *EntryPoint,
> + (VOID **)EntryPoint);
This breaks on a VS2015x86 build.
*EntryPoint is type EFI_IMAGE_ENTRY_POINT and the 3rd param is
type VOID *. This can be fixed by adding typecasts:
return EbcCreateThunk (NULL, (VOID *)(UINTN)ImageBase, (VOID *)(UINTN)*EntryPoint,
(VOID **)EntryPoint);
> +}
> +
> +/**
> + Unregister a PE/COFF image that has been registered
> with the emulator.
> + This should be done before the image is unloaded
> from memory.
> +
> + @param[in] This This pointer for
> EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
> + structure
> + @param[in] ImageBase The base address in memory
> of the PE/COFF image
> +
> + @retval EFI_SUCCESS The image was unregistered
> with the emulator.
> + @retval other Image could not be unloaded.
> +**/
> +EFI_STATUS
> +EFIAPI
> +EbcUnregisterImage (
> + IN EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *This,
> + IN EFI_PHYSICAL_ADDRESS
> ImageBase
> + )
> +{
> + return EbcUnloadImage (NULL, (VOID
> *)(UINTN)ImageBase);
> +}
> +
> +EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL
> mPeCoffEmuProtocol = {
> + EbcIsImageSupported,
> + EbcRegisterImage,
> + EbcUnregisterImage,
> + EDKII_PECOFF_IMAGE_EMULATOR_VERSION,
> + EFI_IMAGE_MACHINE_EBC
> +};
>
> /**
> Initializes the VM EFI interface. Allocates memory
> for the VM interface
> @@ -449,6 +562,16 @@ InitializeEbcDriver (
> }
> }
>
> + Status = gBS->InstallProtocolInterface (
> + &ImageHandle,
> +
> &gEdkiiPeCoffImageEmulatorProtocolGuid,
> + EFI_NATIVE_INTERFACE,
> + &mPeCoffEmuProtocol
> + );
> + if (EFI_ERROR(Status)) {
> + goto ErrorExit;
> + }
> +
> Status = InitEBCStack();
> if (EFI_ERROR(Status)) {
> goto ErrorExit;
> diff --git a/MdeModulePkg/Universal/EbcDxe/EbcInt.h
> b/MdeModulePkg/Universal/EbcDxe/EbcInt.h
> index 8aa7a4abbd63..9b25e91f951c 100644
> --- a/MdeModulePkg/Universal/EbcDxe/EbcInt.h
> +++ b/MdeModulePkg/Universal/EbcDxe/EbcInt.h
> @@ -23,9 +23,12 @@ WITHOUT WARRANTIES OR
> REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
> #include <Protocol/Ebc.h>
> #include <Protocol/EbcVmTest.h>
> #include <Protocol/EbcSimpleDebugger.h>
> +#include <Protocol/PeCoffImageEmulator.h>
>
> #include <Library/BaseLib.h>
> +#include <Library/CacheMaintenanceLib.h>
> #include <Library/DebugLib.h>
> +#include <Library/PeCoffLib.h>
> #include <Library/UefiDriverEntryPoint.h>
> #include <Library/BaseMemoryLib.h>
> #include <Library/UefiBootServicesTableLib.h>
> --
> 2.17.1
>
>
>
^ permalink raw reply [flat|nested] 10+ messages in thread
* [PATCH v5 6/7] MdePkg/UefiBaseType.h: treat EBC as a non-native machine type
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
` (4 preceding siblings ...)
2019-04-11 18:58 ` [PATCH v5 5/7] MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
2019-04-11 18:58 ` [PATCH v5 7/7] MdeModulePkg/DxeCore: remove explicit EBC handling Ard Biesheuvel
6 siblings, 0 replies; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Instead of classifying EBC as a supported machine type and have special
handling in DXE core for loading EBC images, make it a foreign type and
rely on the EDK2 PE/COFF image emulator protocol to claim the image when
the DXE core finds that it cannot be supported natively.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdePkg/Include/Uefi/UefiBaseType.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/MdePkg/Include/Uefi/UefiBaseType.h b/MdePkg/Include/Uefi/UefiBaseType.h
index 8c9d571eb1ce..33b872af91a9 100644
--- a/MdePkg/Include/Uefi/UefiBaseType.h
+++ b/MdePkg/Include/Uefi/UefiBaseType.h
@@ -250,14 +250,14 @@ typedef union {
#if defined (MDE_CPU_IA32)
#define EFI_IMAGE_MACHINE_TYPE_SUPPORTED(Machine) \
- (((Machine) == EFI_IMAGE_MACHINE_IA32) || ((Machine) == EFI_IMAGE_MACHINE_EBC))
+ ((Machine) == EFI_IMAGE_MACHINE_IA32)
#define EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED(Machine) ((Machine) == EFI_IMAGE_MACHINE_X64)
#elif defined (MDE_CPU_X64)
#define EFI_IMAGE_MACHINE_TYPE_SUPPORTED(Machine) \
- (((Machine) == EFI_IMAGE_MACHINE_X64) || ((Machine) == EFI_IMAGE_MACHINE_EBC))
+ ((Machine) == EFI_IMAGE_MACHINE_X64)
#define EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED(Machine) ((Machine) == EFI_IMAGE_MACHINE_IA32)
@@ -270,7 +270,7 @@ typedef union {
#elif defined (MDE_CPU_AARCH64)
#define EFI_IMAGE_MACHINE_TYPE_SUPPORTED(Machine) \
- (((Machine) == EFI_IMAGE_MACHINE_AARCH64) || ((Machine) == EFI_IMAGE_MACHINE_EBC))
+ ((Machine) == EFI_IMAGE_MACHINE_AARCH64)
#define EFI_IMAGE_MACHINE_CROSS_TYPE_SUPPORTED(Machine) (FALSE)
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread* [PATCH v5 7/7] MdeModulePkg/DxeCore: remove explicit EBC handling
2019-04-11 18:58 [PATCH v5 0/7] MdeModulePkg: add support for dispatching foreign arch PE/COFF images Ard Biesheuvel
` (5 preceding siblings ...)
2019-04-11 18:58 ` [PATCH v5 6/7] MdePkg/UefiBaseType.h: treat EBC as a non-native machine type Ard Biesheuvel
@ 2019-04-11 18:58 ` Ard Biesheuvel
6 siblings, 0 replies; 10+ messages in thread
From: Ard Biesheuvel @ 2019-04-11 18:58 UTC (permalink / raw)
To: devel
Cc: Ard Biesheuvel, Vincent Zimmer, Brian Richardson,
Michael D Kinney, Andrew Fish, Leif Lindholm, Star Zeng,
Eric Dong, Ruiyu Ni, Liming Gao, Jaben Carsey, Steven Shi
Now that the EBC machine type is no longer classified as a
natively supported machine type on the architectures that can
support it via the EBC interpreter, the EBC specific handling
in DXE core is no longer used and can be removed.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
---
MdeModulePkg/Core/Dxe/DxeMain.h | 3 --
MdeModulePkg/Core/Dxe/DxeMain.inf | 1 -
MdeModulePkg/Core/Dxe/Image/Image.c | 53 ++------------------
3 files changed, 3 insertions(+), 54 deletions(-)
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.h b/MdeModulePkg/Core/Dxe/DxeMain.h
index 48ec30a48aa2..6e83f15a4541 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.h
+++ b/MdeModulePkg/Core/Dxe/DxeMain.h
@@ -42,7 +42,6 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <Protocol/LoadPe32Image.h>
#include <Protocol/Security.h>
#include <Protocol/Security2.h>
-#include <Protocol/Ebc.h>
#include <Protocol/Reset.h>
#include <Protocol/Cpu.h>
#include <Protocol/Metronome.h>
@@ -227,8 +226,6 @@ typedef struct {
BASE_LIBRARY_JUMP_BUFFER *JumpContext;
/// Machine type from PE image
UINT16 Machine;
- /// EBC Protocol pointer
- EFI_EBC_PROTOCOL *Ebc;
/// PE/COFF Image Emulator Protocol pointer
EDKII_PECOFF_IMAGE_EMULATOR_PROTOCOL *PeCoffEmu;
/// Runtime image list
diff --git a/MdeModulePkg/Core/Dxe/DxeMain.inf b/MdeModulePkg/Core/Dxe/DxeMain.inf
index ce6fc19be5e4..68413517f2a7 100644
--- a/MdeModulePkg/Core/Dxe/DxeMain.inf
+++ b/MdeModulePkg/Core/Dxe/DxeMain.inf
@@ -160,7 +160,6 @@
gEfiLoadedImageProtocolGuid ## PRODUCES
gEfiLoadedImageDevicePathProtocolGuid ## PRODUCES
gEfiHiiPackageListProtocolGuid ## SOMETIMES_PRODUCES
- gEfiEbcProtocolGuid ## SOMETIMES_CONSUMES
gEfiSmmBase2ProtocolGuid ## SOMETIMES_CONSUMES
gEdkiiPeCoffImageEmulatorProtocolGuid ## SOMETIMES_CONSUMES
diff --git a/MdeModulePkg/Core/Dxe/Image/Image.c b/MdeModulePkg/Core/Dxe/Image/Image.c
index d00e50747040..565008177e96 100644
--- a/MdeModulePkg/Core/Dxe/Image/Image.c
+++ b/MdeModulePkg/Core/Dxe/Image/Image.c
@@ -75,7 +75,6 @@ LOADED_IMAGE_PRIVATE_DATA mCorePrivateImage = {
NULL, // JumpBuffer
NULL, // JumpContext
0, // Machine
- NULL, // Ebc
NULL, // PeCoffEmu
NULL, // RuntimeData
NULL // LoadedImageDevicePath
@@ -92,9 +91,6 @@ typedef struct {
CHAR16 *MachineTypeName;
} MACHINE_TYPE_INFO;
-//
-// EBC machine is not listed in this table, because EBC is in the default supported scopes of other machine type.
-//
GLOBAL_REMOVE_IF_UNREFERENCED MACHINE_TYPE_INFO mMachineTypeInfo[] = {
{EFI_IMAGE_MACHINE_IA32, L"IA32"},
{EFI_IMAGE_MACHINE_IA64, L"IA64"},
@@ -773,51 +769,15 @@ CoreLoadPeImage (
InvalidateInstructionCacheRange ((VOID *)(UINTN)Image->ImageContext.ImageAddress, (UINTN)Image->ImageContext.ImageSize);
//
- // Copy the machine type from the context to the image private data. This
- // is needed during image unload to know if we should call an EBC protocol
- // to unload the image.
+ // Copy the machine type from the context to the image private data.
//
Image->Machine = Image->ImageContext.Machine;
//
- // Get the image entry point. If it's an EBC image, then call into the
- // interpreter to create a thunk for the entry point and use the returned
- // value for the entry point.
+ // Get the image entry point.
//
Image->EntryPoint = (EFI_IMAGE_ENTRY_POINT)(UINTN)Image->ImageContext.EntryPoint;
- if (Image->ImageContext.Machine == EFI_IMAGE_MACHINE_EBC) {
- //
- // Locate the EBC interpreter protocol
- //
- Status = CoreLocateProtocol (&gEfiEbcProtocolGuid, NULL, (VOID **)&Image->Ebc);
- if (EFI_ERROR(Status) || Image->Ebc == NULL) {
- DEBUG ((DEBUG_LOAD | DEBUG_ERROR, "CoreLoadPeImage: There is no EBC interpreter for an EBC image.\n"));
- goto Done;
- }
-
- //
- // Register a callback for flushing the instruction cache so that created
- // thunks can be flushed.
- //
- Status = Image->Ebc->RegisterICacheFlush (Image->Ebc, (EBC_ICACHE_FLUSH)InvalidateInstructionCacheRange);
- if (EFI_ERROR(Status)) {
- goto Done;
- }
-
- //
- // Create a thunk for the image's entry point. This will be the new
- // entry point for the image.
- //
- Status = Image->Ebc->CreateThunk (
- Image->Ebc,
- Image->Handle,
- (VOID *)(UINTN) Image->ImageContext.EntryPoint,
- (VOID **) &Image->EntryPoint
- );
- if (EFI_ERROR(Status)) {
- goto Done;
- }
- } else if (Image->PeCoffEmu != NULL) {
+ if (Image->PeCoffEmu != NULL) {
Status = Image->PeCoffEmu->RegisterImage (Image->PeCoffEmu,
Image->ImageBasePage,
EFI_PAGES_TO_SIZE (Image->NumberOfPages),
@@ -1007,13 +967,6 @@ CoreUnloadAndCloseImage (
UnprotectUefiImage (&Image->Info, Image->LoadedImageDevicePath);
- if (Image->Ebc != NULL) {
- //
- // If EBC protocol exists we must perform cleanups for this image.
- //
- Image->Ebc->UnloadImage (Image->Ebc, Image->Handle);
- }
-
if (Image->PeCoffEmu != NULL) {
//
// If the PE/COFF Emulator protocol exists we must unregister the image.
--
2.17.1
^ permalink raw reply related [flat|nested] 10+ messages in thread