On Thu, 26 Sep 2019 at 00:31, Alex Bennée <alex.ben...@linaro.org> wrote: > > The 32 bit hosts are already a second class citizen especially with > support for running 64 bit guests under TCG. We are also limited by > testing as actual working 32 bit machines are getting quite rare in > developers personal menageries. For TCG supporting newer types like > Int128 is a lot harder with 32 bit calling conventions compared to > their larger bit sized cousins. Fundamentally address space is the > most useful thing for the translator to have even for a 32 bit guest a > 32 bit host is quite constrained. > > As far as I'm aware 32 bit KVM users are even less numerous. Even > ILP32 doesn't make much sense given the address space QEMU needs to > manage.
For KVM we should wait until the kernel chooses to drop support, I think. > @@ -745,19 +744,22 @@ case "$cpu" in > ;; > armv*b|armv*l|arm) > cpu="arm" > - supported_cpu="yes" > ;; I'll leave others to voice opinions about their architectures, but I still have 32-bit arm in my test set for builds, and I'm pretty sure we have users (raspi users, for a start). thanks -- PMM
