x86: kvm drop 32-bit host support
There are very few 32-bit machines that support KVM, the main exceptions
are the "Yonah" Generation Xeon-LV and Core Duo from 2006 and the Atom
Z5xx "Silverthorne" from 2008 that were all released just before their
64-bit counterparts.
The main usecase for KVM in x86-32 kernels these days is to verify
that 32-bit KVM is still working, by running it on 64-bit hardware.
With KVM support on other 32-bit architectures going away, and x86-32
kernels on 64-bit hardware becoming more limited in available RAM,
this usecase becomes much less interesting.
Remove this support to make KVM exclusive to 64-bit hosts on all
architectures, and stop testing 32-bit host mode.
Link: https://lore.kernel.org/all/Z1B1phcpbiYWLgCD@google.com/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
32 files changed
