Commit fb2c2641 authored Aug 16, 2010 by Avi Kivity

KVM: x86 emulator: Use a register for ____emulate_2op() destination



Most x86 two operand instructions allow the destination to be a memory operand,
but IMUL (for example) requires that the destination be a register.  Change
____emulate_2op() to take a register for both source and destination so we
can invoke IMUL.

Signed-off-by: Avi Kivity <avi@redhat.com>

parent b3b3d25a

arch/x86/kvm/emulate.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -200,7 +200,7 @@ struct group_dual {
		_PRE_EFLAGS("0", "4", "2") \
		_op _suffix " %"_x"3,%1; " \
		_POST_EFLAGS("0", "4", "2") \
		: "=m" (_eflags), "=m" ((_dsttype)&(_dst).val),\
		: "=m" (_eflags), "+q" ((_dsttype)&(_dst).val),\
		"=&r" (_tmp) \
		: _y ((_src).val), "i" (EFLAGS_MASK)); \
		} while (0)