Add the basic plumbing to DXE core, the PCI bus driver and the boot manager to allow PE/COFF images to be dispatched that target an architecture that is not native for the platform, but which is supported by one of potentially several available emulators.
One implementation of such an emulator can be found here: https://github.com/ardbiesheuvel/X86EmulatorPkg This also allows us to get rid of the special treatment of EBC images in core code. Instead, the EbcDxe driver is augmented with an implementation of the EDK2 PE/COFF image emulator so that internal knowledge of how EBC is implemented (I-cache flushing, thunks) is removed from the DXE core. Changes since v2: - incorporate feedback from Andrew Fish (delivered in person): * pass a device path into the IsImageSupported() protocol method so that an implementation can blacklist or whitelist certain devices, or implement other policies that depend on the device where the driver originated * allow the emulator to supersede the native loading of the image - this permits things like X86 on X86 emulators for security sandboxing or debug Changes since v1: - subsume the EBC handling into the EDK2 emulator protocol and abstract away from EBC specifics in core code. - allow multiple emulator implementations to co-exist - incorporate Star's review feedback Cc: Vincent Zimmer <[email protected]> Cc: Brian Richardson <[email protected]> Cc: Michael D Kinney <[email protected]> Cc: Andrew Fish <[email protected]> Cc: Leif Lindholm <[email protected]> Cc: Star Zeng <[email protected]> Cc: Eric Dong <[email protected]> Cc: Ruiyu Ni <[email protected]> Cc: Liming Gao <[email protected]> Cc: Jaben Carsey <[email protected]> Cc: Steven Shi <[email protected]> Ard Biesheuvel (7): MdeModulePkg: introduce PE/COFF image emulator protocol MdeModulePkg/DxeCore: invoke the emulator protocol for foreign images MdeModulePkg/PciBusDxe: invoke PE/COFF emulator for foreign option ROMs MdeModulePkg/UefiBootManagerLib: allow foreign Driver#### images MdeModulePkg/EbcDxe: implement the PE/COFF emulator protocol MdePkg/UefiBaseType.h: treat EBC as a non-native machine type MdeModulePkg/DxeCore: remove explicit EBC handling MdeModulePkg/Bus/Pci/PciBusDxe/PciBus.h | 1 + MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe.inf | 1 + .../Bus/Pci/PciBusDxe/PciOptionRomSupport.c | 53 +++++- MdeModulePkg/Core/Dxe/DxeMain.h | 6 +- MdeModulePkg/Core/Dxe/DxeMain.inf | 2 +- MdeModulePkg/Core/Dxe/Image/Image.c | 178 ++++++++++++------ MdeModulePkg/Core/Dxe/Image/Image.h | 1 + .../Include/Protocol/PeCoffImageEmulator.h | 102 ++++++++++ .../Library/UefiBootManagerLib/BmLoadOption.c | 51 ++++- .../Library/UefiBootManagerLib/InternalBm.h | 1 + .../UefiBootManagerLib/UefiBootManagerLib.inf | 1 + MdeModulePkg/MdeModulePkg.dec | 4 + MdeModulePkg/Universal/EbcDxe/EbcDxe.inf | 3 + MdeModulePkg/Universal/EbcDxe/EbcInt.c | 127 +++++++++++++ MdeModulePkg/Universal/EbcDxe/EbcInt.h | 3 + MdePkg/Include/Uefi/UefiBaseType.h | 8 +- 16 files changed, 478 insertions(+), 64 deletions(-) create mode 100644 MdeModulePkg/Include/Protocol/PeCoffImageEmulator.h -- 2.17.1 _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
