On Wed, Mar 21, 2012 at 01:11:27PM -0500, Dennis Gilmore wrote: > I have spoken with the OpenSUSE guys they dont use qemu-system-arm but > rather qemu-arm and lay out things and build using a hybrid > environment thats also how they build ppc s390 and other arches. the > only build hardware they have is x86. doing full system emulation will > be slower. In case it's not clear to the peanut gallery, qemu-system-arm and qemu-arm work in different ways. qemu-system-arm emulates a complete machine, so your ARM kernel is also running and being emulated. qemu-arm just emulates the userspace part of the program, but translates system calls from the program and runs them against the regular (x86-64 in this case) kernel. qemu-arm should be a lot faster, since the kernel part is running at full speed. On the other hand, there's some start-up overhead for every process run this way. I should also say that in both cases qemu's "TCG" emulation is reasonably smart, and recompiles guest ARM code on the fly down to native (x86-64 in this case) code. Recommended reading: http://lugatgt.org/content/qemu_internals/downloads/slides.pdf Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones New in Fedora 11: Fedora Windows cross-compiler. Compile Windows programs, test, and build Windows installers. Over 70 libraries supprt'd http://fedoraproject.org/wiki/MinGW http://www.annexia.org/fedora_mingw -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel
