unicorn/qemu/tcg/i386
Alex Bennée caba238b5a
tcg: enable MTTCG by default for ARM on x86 hosts
This enables the multi-threaded system emulation by default for ARMv7
and ARMv8 guests using the x86_64 TCG backend. This is because on the
guest side:

- The ARM translate.c/translate-64.c have been converted to
- use MTTCG safe atomic primitives
- emit the appropriate barrier ops
- The ARM machine has been updated to
- hold the BQL when modifying shared cross-vCPU state
- defer powerctl changes to async safe work

All the host backends support the barrier and atomic primitives but
need to provide same-or-better support for normal load/store
operations.

Backports commit ca759f9e387db87e1719911f019bc60c74be9ed8 from qemu
2018-03-02 10:32:47 -05:00
..
tcg-target.h tcg: enable MTTCG by default for ARM on x86 hosts 2018-03-02 10:32:47 -05:00
tcg-target.inc.c tcg/i386: Handle ctpop opcode 2018-03-01 18:49:43 -05:00