QEMU DANGER x86わ、QEMUのForkです。これわ仮想x86/64 CPU権限の無視する。
例えば、Ring3のプログラムがRing0の命令を実行ができる。DATAの読み書きもできる！
面白いでしょう？でも、これわ危険です。WindowsDanger の一緒に研究です。
I/O portの"233"ど"0x2333"に出力値捕獲する。そして、"a"をターミナルに出力する。
例えば、WinXPのCMDで次の実行する：
debug
-o e9 e9そして、一つの"a"が出力される。
または、次の実行する：
mov dx, 2333h
mov ax, 2333h
out dx, axそして、ふたつの"a"が出力される。
QEMU is a generic and open source machine & userspace emulator and virtualizer.
QEMU is capable of emulating a complete machine in software without any need for hardware virtualization support. By using dynamic translation, it achieves very good performance. QEMU can also integrate with the Xen and KVM hypervisors to provide emulated hardware while allowing the hypervisor to manage the CPU. With hypervisor support, QEMU can achieve near native performance for CPUs. When QEMU emulates CPUs directly it is capable of running operating systems made for one machine (e.g. an ARMv7 board) on a different machine (e.g. an x86_64 PC board).
QEMU is also capable of providing userspace API virtualization for Linux and BSD kernel interfaces. This allows binaries compiled against one architecture ABI (e.g. the Linux PPC64 ABI) to be run on a host using a different architecture ABI (e.g. the Linux x86_64 ABI). This does not involve any hardware emulation, simply CPU and syscall emulation.
QEMU aims to fit into a variety of use cases. It can be invoked directly by users wishing to have full control over its behaviour and settings. It also aims to facilitate integration into higher level management layers, by providing a stable command line interface and monitor API. It is commonly invoked indirectly via the libvirt library when using open source applications such as oVirt, OpenStack and virt-manager.
QEMU as a whole is released under the GNU General Public License, version 2. For full licensing details, consult the LICENSE file.
Documentation can be found hosted online at
https://www.qemu.org/documentation/. The documentation for the
current development version that is available at
https://www.qemu.org/docs/master/ is generated from the docs/
folder in the source tree, and is built by Sphinx.
QEMU is multi-platform software intended to be buildable on all modern Linux platforms, OS-X, Win32 (via the Mingw64 toolchain) and a variety of other UNIX targets. The simple steps to build QEMU are:
if you are building on a Mac:
brew install pkg-config glib libtool automake autoconf pixman ninja sdl2
pip3 install mesonmkdir build
cd build
../configure
make -j8Additional information can also be found online via the QEMU website: