target-i386: Ensure always-1 bits on DR6 can't be cleared
commit462f8ed1f1eac189ef50d9586eae8af90dbe426f
authorEduardo Habkost <ehabkost@redhat.com>
Wed, 7 Oct 2015 20:19:18 +0000 (7 17:19 -0300)
committerEduardo Habkost <ehabkost@redhat.com>
Fri, 23 Oct 2015 14:59:27 +0000 (23 12:59 -0200)
treee0dead45fad46e231ed61e963ffddeb25c05ef35
parentd0052339236072bbf08c1d600c0906126b1ab258
target-i386: Ensure always-1 bits on DR6 can't be cleared

Bits 4-11 and 16-31 on DR6 are documented as always 1, so ensure they
can't be cleared by software.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
target-i386/bpt_helper.c