tree d8ddec9306143c203edf2a34439bbdb64d5ebca6
parent 87b8bde55dc1700f212b2249b9c150714df67369
author Paolo Bonzini <pbonzini@redhat.com> 1718724772 +0200
committer Paolo Bonzini <pbonzini@redhat.com> 1719578691 +0200

meson: allow configuring the x86-64 baseline

Add a Meson option to configure which x86-64 instruction
set to use.  QEMU will now default to x86-64-v1 + cmpxchg16b for
64-bit builds (that corresponds to a Pentium 4 for 32-bit builds).

The baseline can be tuned down to Pentium Pro for 32-bit builds (with
-Dx86_version=0), or up as desired.

Acked-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>