June 2017
Intermediate to advanced
478 pages
13h 14m
English
Content preview from Mastering Embedded Linux Programming - Second Edition
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QEMU
QEMU is a machine emulator. It comes in a number of different flavors, each of which can emulate a processor architecture and a number of boards built using that architecture. For example, we have the following:
- qemu-system-arm: ARM
- qemu-system-mips: MIPS
- qemu-system-ppc: PowerPC
- qemu-system-x86: x86 and x86_64
For each architecture, QEMU emulates a range of hardware, which you can see by using the option—machine help. Each machine emulates most of the hardware that would normally be found on that board. There are options to link hardware to local resources, such as using a local file for the emulated disk drive. Here is a concrete example:
$ qemu-system-arm -machine vexpress-a9 -m 256M -drive file=rootfs.ext4,sd -net nic -net use ...
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