On 06/27/2016 01:41 PM, Emilio G. Cota wrote:
Supporting 64-bit hosts on 32-bit guests has the problem of non-atomicity of 64-bit accesses, however.
It does. It would be possible to do something with armv7 and i686 hosts, as 64-bit atomic ops exist, but it's probably not worth the effort.
As you might be able to glean from the multiple sparc64-on-i686 threads, I'm becoming annoyed with i686. I wouldn't be disappointed to completely deprecate it.
r~
