From: Avi Kivity Date: Mon, 16 Aug 2010 14:50:56 +0000 (+0300) Subject: KVM: x86 emulator: Use a register for ____emulate_2op() destination X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=fb2c264105c64511dbd1a7488b482960895aace4;p=GitHub%2Fmt8127%2Fandroid_kernel_alcatel_ttab.git 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 --- diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 7818c91deb63..81b0f8848960 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -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)