diff options
| author | Avi Kivity <avi@redhat.com> | 2010-08-16 17:50:56 +0300 |
|---|---|---|
| committer | Avi Kivity <avi@redhat.com> | 2010-10-24 10:51:11 +0200 |
| commit | fb2c264105c64511dbd1a7488b482960895aace4 (patch) | |
| tree | a91a85707f1273e3f6eda11d616d8da55556a4f9 | |
| parent | b3b3d25a12986fb08666823db3e9a74649a71925 (diff) | |
| download | op-kernel-dev-fb2c264105c64511dbd1a7488b482960895aace4.zip op-kernel-dev-fb2c264105c64511dbd1a7488b482960895aace4.tar.gz | |
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>
| -rw-r--r-- | arch/x86/kvm/emulate.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 7818c91..81b0f88 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) |
