4a43fa3af9
Add some text to About to act as a brief introduction to the QEMU manual and to make the about page a bit less of an abrupt start to it. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Message-id: 20210705095547.15790-6-peter.maydell@linaro.org
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About QEMU
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==========
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QEMU is a generic and open source machine emulator and virtualizer.
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QEMU can be used in several different ways. The most common is for
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"system emulation", where it provides a virtual model of an
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entire machine (CPU, memory and emulated devices) to run a guest OS.
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In this mode the CPU may be fully emulated, or it may work with
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a hypervisor such as KVM, Xen, Hax or Hypervisor.Framework to
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allow the guest to run directly on the host CPU.
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The second supported way to use QEMU is "user mode emulation",
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where QEMU can launch processes compiled for one CPU on another CPU.
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In this mode the CPU is always emulated.
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QEMU also provides a number of standalone commandline utilities,
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such as the `qemu-img` disk image utility that allows you to create,
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convert and modify disk images.
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.. toctree::
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:maxdepth: 2
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build-platforms
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deprecated
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removed-features
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license
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