[Qemu-devel] [RFC for 2.8 0/3] Drop support for 64 bit guests on 32 bit hosts

[Alex Bennée]

Hi,

I'm proposing for the 2.8 cycle we officially drop supporting 64 bit
guests on 32 bit hosts. For most of the KVM targets it doesn't make
any sense anyway and for TCG it makes things harder (e.g. supporting
64 bit atomics on a 32 bit platform). I'm not actually convinced
things actually work if built or that anyone relies on these
combinations. Consider these patches a way of flushing any such users
out ;-)

Alex Bennée (3):
  configure: check CPU width and disable larger guests
  configure: filter 64 bit machines on 32 bit builds
  cpu-defs.h: add compile check for HOST vs TARGET LONG_BITS

 configure               | 50 +++++++++++++++++++++++++++++++++++++++++++++++--
 include/exec/cpu-defs.h |  9 +++++++++
 2 files changed, 57 insertions(+), 2 deletions(-)

-- 
2.7.4