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
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
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:
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
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