tree 38b2e5111f14c1999b5a631f893a205868fb6feb
parent 502d49aa9c9b377deccc41002965188717f95c67
author David 'Digit' Turner <digit@google.com> 1477056479 +0200
committer David 'Digit' Turner <digit@google.com> 1477585352 +0200

hax: Add HAX_DISABLE_UNRESTRICTED_GUEST env. variable.

After this patch is applied, if HAX_DISABLE_UNRESTRICTED_GUEST
is defined to either '1' or 'true' in the environment, the VT-x
"unrestricted guest" CPU feature will be ignored.

This will force the emulator to use HAX emulation inside a
single TCG vCPU thread (while unrestricted guest mode allows
one to run multiple vCPUs on multiple cores, and uses a different
CPU emulation code path).

This is useful to debug the code path used when running the
emulator on pre-2010 CPUs, which don't support unrestricted
guest mode.

Change-Id: Ice4840ecec8ac6c5f4be155e7e600f3d907a374a