Add config entries defining the largest scale supported

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Cleanup glue code in i386 implementation

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Add support for autotesting amd64.

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Enlarge sfsimg size for i386 and amd64

The original sfs image size (128M) is no longer enough to store all test
cases in a single image. Double the size to quickly enable autotest.

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
REVERT ME: Remove ARM implemention from autotest

The ARM-specific code has not yet been cleaned and thus cannot compile.

Signed-off-by: Junjie Mao <eternal.n08@gmail.com>
Merge branch 'mjj/amd64' into amd64-smp
update .gitignore