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| author | Avi Kivity | 2010-08-16 16:50:56 +0200 |
|---|---|---|
| committer | Avi Kivity | 2010-10-24 10:51:11 +0200 |
| commit | fb2c264105c64511dbd1a7488b482960895aace4 (patch) | |
| tree | a91a85707f1273e3f6eda11d616d8da55556a4f9 /arch/x86/kvm/emulate.c | |
| parent | KVM: x86 emulator: pass destination type to ____emulate_2op() (diff) | |
| download | kernel-qcow2-linux-fb2c264105c64511dbd1a7488b482960895aace4.tar.gz kernel-qcow2-linux-fb2c264105c64511dbd1a7488b482960895aace4.tar.xz kernel-qcow2-linux-fb2c264105c64511dbd1a7488b482960895aace4.zip | |
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>
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -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 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) |