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参考链接: 、
$ sudo apt-get install qemu binutils-mingw-w64 gcc-mingw-w64 xorriso mtools$ wget http://www.tysos.org/files/efi/mkgpt-latest.tar.bz2$ tar jxf mkgpt-latest.tar.bz2$ cd mkgpt && ./configure && make && sudo make install && cd ..
$ sudo apt-get install build-essential uuid-dev iasl git gcc-5 nasm
其中:
build-essential - Informational list of build-essential packagesuuid-dev - Universally Unique ID library (headers and static libraries)iasl - Intel ASL compiler/decompiler (also provided by acpica-tools)git - support for git revision control systemgcc-5 - GNU C compiler (v5.4.0 as of Ubuntu 16.04 LTS)nasm - General-purpose x86 assembler
$ git clone https://github.com/tianocore/edk2
$ cd ./edk2$ make -C BaseTools$ . ./edksetup.sh
ACTIVE_PLATFORM = Nt32Pkg/Nt32Pkg.dscTOOL_CHAIN_TAG = MYTOOLS
改成:
ACTIVE_PLATFORM = MdeModulePkg/MdeModulePkg.dscTOOL_CHAIN_TAG = GCC5
然后修改
TARGET_ARCH = IA32
为 TARGET_ARCH = IA32 X64
$ build
ls Build/MdeModule/DEBUG_*/*/HelloWorld.efi
结果为: Build/MdeModule/DEBUG_GCC5/IA32/HelloWorld.efiBuild/MdeModule/DEBUG_GCC5/X64/HelloWorld.efi
像上面那样修改Conf/target.txt,然后编译即可
ACTIVE_PLATFORM = OvmfPkg/OvmfPkgIa32X64.dscTARGET_ARCH = IA32 X64TOOL_CHAIN_TAG = GCC5
$ build
ls Build/Ovmf3264/DEBUG_GCC5/FV/*.fd
可以从下面的输出看到OVMF.fd文件,说明生成成功:-) Build/Ovmf3264/DEBUG_GCC5/FV/MEMFD.fdBuild/Ovmf3264/DEBUG_GCC5/FV/OVMF_CODE.fdBuild/Ovmf3264/DEBUG_GCC5/FV/OVMF.fdBuild/Ovmf3264/DEBUG_GCC5/FV/OVMF_VARS.fd
现在我们已经有了OVMF固件,先测试一下我们的固件把。
$ cp edk2/Build/Ovmf3264/DEBUG_GCC5/FV/OVMF.fd ./bios.bin$ emu-system-x86_64 -bios ./bios.bin
网上的教程包括EDK官网都是用的qemu-system-x86_64 -L 路径,这样的命令,但是我这里没有成功,参考了戴正华老师的UEFI原理与编程,使用了-bios选项,成功启动了。
然后会启动到UEFI shell环境:创建hello.c
#include#include EFI_STATUS efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable){ EFI_STATUS Status; EFI_INPUT_KEY Key; /* Store the system table for future use in other functions */ ST = SystemTable; /* Say hi */ Status = ST->ConOut->OutputString(ST->ConOut, L"Hello World\n\r"); if (EFI_ERROR(Status)) return Status; /* Now wait for a keystroke before continuing, otherwise your message will flash off the screen before you see it. First, we need to empty the console input buffer to flush out any keystrokes entered before this point */ Status = ST->ConIn->Reset(ST->ConIn, FALSE); if (EFI_ERROR(Status)) return Status; /* Now wait until a key becomes available. This is a simple polling implementation. You could try and use the WaitForKey event instead if you like */ while ((Status = ST->ConIn->ReadKeyStroke(ST->ConIn, &Key)) == EFI_NOT_READY) ; return Status;}
然后去下载的工程,然后把gnu-efi/lib/data.c和gnu-efi/lib/lib.h都考出来,和hello.c放到同一个地方。
编辑data.c文件: 将结构体LibStubUnicodeInterface的成员变量全部设置为NULLx86_64-w64-mingw32-gcc -ffreestanding -Ignu-efi/inc -Ignu-efi/inc/x86_64 -Ignu-efi/inc/protocol -c -o hello.o hello.cx86_64-w64-mingw32-gcc -ffreestanding -Ignu-efi/inc -Ignu-efi/inc/x86_64 -Ignu-efi/inc/protocol -c -o data.o data.cx86_64-w64-mingw32-gcc -nostdlib -Wl,-dll -shared -Wl,--subsystem,10 -e efi_main -o BOOTX64.EFI hello.o data.o -lgcc
编辑好了之后制作我们自己的启动镜像
dd if=/dev/zero of=fat.img bs=1k count=1440mformat -i fat.img -f 1440 ::mmd -i fat.img ::/EFImmd -i fat.img ::/EFI/BOOTmcopy -i fat.img BOOTX64.EFI ::/EFI/BOOT
然后把这个镜像运行起来把:
qemu-system-x86_64 --bios "bios.bin" -usbdevice disk::fat.img
osdev网站上提供了三种运行的方法,我只用了当作USB-device的一种方法。
当作USB设备来运行 – 直接写入USB设备或者运行:
qemu-system-x86_64 -L OVMF_dir/ -bios OVMF.fd -usb -usbdevice disk::fat.img
当作本地磁盘的方法 :
mkgpt -o hdimage.bin --image-size 4096 --part fat.img --type system qemu-system-x86_64 -L OVMF_dir/ -bios OVMF.fd -hda hdimage.bin
如果你不使用这种方法的话,可以不安装开头提到的mkgpt。
当作CD-ROM的方法 – 烧入CD或者运行:
mkdir iso cp fat.img iso xorriso -as mkisofs -R -f -e fat.img -no-emul-boot -o cdimage.iso iso qemu-system-x86_64 -L OVMF_dir/ -bios OVMF.fd -cdrom cdimage.iso