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https://github.com/acidanthera/audk.git
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Ring3: Added SysCallInstallMultipleProtocolInterfaces draft.
This commit is contained in:
Mikhail Krichanov
parent
a746842957
commit
046421d220
MdeModulePkg/Core/Dxe
MdePkg
@ -68,6 +68,8 @@
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DxeMain/DxeProtocolNotify.c
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DxeMain/DxeMain.c
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SysCall/BootServices.c
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SysCall/SupportedProtocols.h
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SysCall/DriverBindingProtocol.c
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[Sources.X64]
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SysCall/X64/CoreBootServices.nasm
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@ -163,6 +165,7 @@
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gEfiSmmBase2ProtocolGuid ## SOMETIMES_CONSUMES
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gEdkiiPeCoffImageEmulatorProtocolGuid ## SOMETIMES_CONSUMES
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gEfiDevicePathUtilitiesProtocolGuid ## SOMETIMES_CONSUMES
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gEfiComponentNameProtocolGuid ## SOMETIMES_CONSUMES
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# Arch Protocols
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gEfiBdsArchProtocolGuid ## CONSUMES
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@ -6,9 +6,13 @@
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**/
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#include "DxeMain.h"
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#include "SupportedProtocols.h"
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#include <Protocol/ComponentName.h>
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#include <Protocol/DevicePathUtilities.h>
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#define MAX_LIST 32
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VOID
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EFIAPI
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DisableSMAP (
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@ -68,6 +72,10 @@ CallBootService (
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EFI_HANDLE Argument4;
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EFI_HANDLE Argument5;
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UINT32 Argument6;
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UINT32 Index;
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UINTN *ArgList[MAX_LIST];
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EFI_DRIVER_BINDING_PROTOCOL *CoreDriverBinding;
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gCpu->GetMemoryAttributes (gCpu, (EFI_PHYSICAL_ADDRESS)UserRsp, &Attributes);
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ASSERT ((Attributes & EFI_MEMORY_USER) != 0);
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@ -80,12 +88,14 @@ CallBootService (
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// Argument 3: VOID **Interface
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//
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DisableSMAP ();
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CoreProtocol = AllocateCopyPool (sizeof (EFI_GUID), (VOID *)CoreRbp->Argument1);
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EnableSMAP ();
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if (CoreProtocol == NULL) {
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DEBUG ((DEBUG_ERROR, "Ring0: Failed to allocate core copy of the Protocol variable.\n"));
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return EFI_OUT_OF_RESOURCES;
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if (CompareGuid ((EFI_GUID *)CoreRbp->Argument1, &gEfiDevicePathUtilitiesProtocolGuid)) {
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CoreProtocol = &gEfiDevicePathUtilitiesProtocolGuid;
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MemoryCoreSize = sizeof (EFI_DEVICE_PATH_UTILITIES_PROTOCOL);
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} else {
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CoreProtocol = NULL;
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MemoryCoreSize = 0;
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}
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EnableSMAP ();
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Status = gBS->LocateProtocol (
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CoreProtocol,
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@ -93,16 +103,9 @@ CallBootService (
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&Interface
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);
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if (CompareGuid (CoreProtocol, &gEfiDevicePathUtilitiesProtocolGuid)) {
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MemoryCoreSize = sizeof (EFI_DEVICE_PATH_UTILITIES_PROTOCOL);
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} else {
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MemoryCoreSize = 0;
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}
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Interface = AllocateRing3CopyPages (Interface, MemoryCoreSize);
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if (Interface == NULL) {
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DEBUG ((DEBUG_ERROR, "Ring0: Failed to allocate pages for Ring3 PROTOCOL structure.\n"));
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FreePool (CoreProtocol);
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return EFI_OUT_OF_RESOURCES;
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}
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@ -110,8 +113,6 @@ CallBootService (
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*(VOID **)CoreRbp->Argument3 = Interface;
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EnableSMAP ();
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FreePool (CoreProtocol);
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return Status;
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case SysCallOpenProtocol:
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@ -124,15 +125,18 @@ CallBootService (
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// Argument 6: UINT32 Attributes
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//
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DisableSMAP ();
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CoreProtocol = AllocateCopyPool (sizeof (EFI_GUID), (VOID *)CoreRbp->Argument2);
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if (CompareGuid ((EFI_GUID *)CoreRbp->Argument2, &gEfiLoadedImageProtocolGuid)) {
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CoreProtocol = &gEfiLoadedImageProtocolGuid;
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MemoryCoreSize = sizeof (EFI_LOADED_IMAGE_PROTOCOL);
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} else {
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CoreProtocol = NULL;
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MemoryCoreSize = 0;
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}
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Argument4 = (EFI_HANDLE)UserRsp->Arguments[4];
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Argument5 = (EFI_HANDLE)UserRsp->Arguments[5];
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Argument6 = (UINT32)UserRsp->Arguments[6];
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EnableSMAP ();
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if (CoreProtocol == NULL) {
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DEBUG ((DEBUG_ERROR, "Ring0: Failed to allocate core copy of the Protocol variable.\n"));
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return EFI_OUT_OF_RESOURCES;
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}
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Status = gBS->OpenProtocol (
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(EFI_HANDLE)CoreRbp->Argument1,
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@ -143,16 +147,9 @@ CallBootService (
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Argument6
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);
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if (CompareGuid (CoreProtocol, &gEfiLoadedImageProtocolGuid)) {
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MemoryCoreSize = sizeof (EFI_LOADED_IMAGE_PROTOCOL);
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} else {
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MemoryCoreSize = 0;
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}
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Interface = AllocateRing3CopyPages (Interface, MemoryCoreSize);
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if (Interface == NULL) {
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DEBUG ((DEBUG_ERROR, "Ring0: Failed to allocate pages for Ring3 PROTOCOL structure.\n"));
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FreePool (CoreProtocol);
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return EFI_OUT_OF_RESOURCES;
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}
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@ -160,7 +157,47 @@ CallBootService (
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*(VOID **)CoreRbp->Argument3 = Interface;
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EnableSMAP ();
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FreePool (CoreProtocol);
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return Status;
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case SysCallInstallMultipleProtocolInterfaces:
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//
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// Argument 1: EFI_HANDLE *Handle
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// ...
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//
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DisableSMAP ();
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for (Index = 0; ((VOID *)UserRsp->Arguments[Index] != NULL) && (Index < MAX_LIST); Index += 2) {
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if (CompareGuid ((EFI_GUID *)UserRsp->Arguments[Index], &gEfiDriverBindingProtocolGuid)) {
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ArgList[Index] = (UINTN *)&gEfiDriverBindingProtocolGuid;
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MemoryCoreSize = sizeof (EFI_DRIVER_BINDING_PROTOCOL);
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} else if (CompareGuid ((EFI_GUID *)UserRsp->Arguments[Index], &gEfiComponentNameProtocolGuid)) {
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ArgList[Index] = (UINTN *)&gEfiComponentNameProtocolGuid;
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MemoryCoreSize = sizeof (EFI_COMPONENT_NAME_PROTOCOL);
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} else {
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DEBUG ((DEBUG_INFO, "Ring0: Argument %d is not a GUID.\n", Index));
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}
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ArgList[Index + 1] = AllocateCopyPool (MemoryCoreSize, (VOID *)UserRsp->Arguments[Index + 1]);
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}
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EnableSMAP ();
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if ((Index == MAX_LIST) && ((VOID *)UserRsp->Arguments[Index] != NULL)) {
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DEBUG ((DEBUG_ERROR, "Ring0: Too many protocols!\n"));
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return EFI_OUT_OF_RESOURCES;
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}
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ArgList[Index] = NULL;
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for (Index = 0; ArgList[Index] != NULL; Index += 2) {
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if (CompareGuid ((EFI_GUID *)ArgList[Index], &gEfiDriverBindingProtocolGuid)) {
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CoreDriverBinding = (EFI_DRIVER_BINDING_PROTOCOL *)ArgList[Index + 1];
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CoreDriverBinding->Supported = CoreDriverBindingSupported;
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CoreDriverBinding->Start = CoreDriverBindingStart;
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CoreDriverBinding->Stop = CoreDriverBindingStop;
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}
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}
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Status = gBS->InstallMultipleProtocolInterfaces ((EFI_HANDLE *)ArgList);
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return Status;
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42
MdeModulePkg/Core/Dxe/SysCall/DriverBindingProtocol.c
Normal file
42
MdeModulePkg/Core/Dxe/SysCall/DriverBindingProtocol.c
Normal file
@ -0,0 +1,42 @@
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/** @file
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Copyright (c) 2024, Mikhail Krichanov. All rights reserved.
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SPDX-License-Identifier: BSD-3-Clause
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**/
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#include "DxeMain.h"
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EFI_STATUS
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EFIAPI
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CoreDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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CoreDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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)
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{
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return EFI_UNSUPPORTED;
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}
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EFI_STATUS
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EFIAPI
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CoreDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
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)
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{
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return EFI_UNSUPPORTED;
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}
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31
MdeModulePkg/Core/Dxe/SysCall/SupportedProtocols.h
Normal file
31
MdeModulePkg/Core/Dxe/SysCall/SupportedProtocols.h
Normal file
@ -0,0 +1,31 @@
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/** @file
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Copyright (c) 2024, Mikhail Krichanov. All rights reserved.
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SPDX-License-Identifier: BSD-3-Clause
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**/
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EFI_STATUS
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EFIAPI
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CoreDriverBindingSupported (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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);
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EFI_STATUS
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EFIAPI
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CoreDriverBindingStart (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath OPTIONAL
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);
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EFI_STATUS
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EFIAPI
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CoreDriverBindingStop (
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IN EFI_DRIVER_BINDING_PROTOCOL *This,
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IN EFI_HANDLE ControllerHandle,
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IN UINTN NumberOfChildren,
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IN EFI_HANDLE *ChildHandleBuffer OPTIONAL
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);
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@ -2014,8 +2014,9 @@ typedef struct {
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} EFI_BOOT_SERVICES;
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typedef enum {
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SysCallLocateProtocol = 1,
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SysCallOpenProtocol = 2,
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SysCallLocateProtocol = 1,
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SysCallOpenProtocol = 2,
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SysCallInstallMultipleProtocolInterfaces = 3,
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SysCallMax
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} SYS_CALL_TYPE;
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@ -564,7 +564,10 @@ Ring3InstallMultipleProtocolInterfaces (
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...
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)
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{
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return EFI_UNSUPPORTED;
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return SysCall (
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SysCallInstallMultipleProtocolInterfaces,
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Handle
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);
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}
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EFI_STATUS
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