diff options
Diffstat (limited to 'arch/x86/kvm/emulate.c')
| -rw-r--r-- | arch/x86/kvm/emulate.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index e10fd3732d10..af06539369b4 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -1670,6 +1670,8 @@ static int em_grp3(struct x86_emulate_ctxt *ctxt) switch (ctxt->modrm_reg) { case 0 ... 1: /* test */ emulate_2op_SrcV(ctxt, "test"); + /* Disable writeback. */ + ctxt->dst.type = OP_NONE; break; case 2: /* not */ ctxt->dst.val = ~ctxt->dst.val; @@ -2513,6 +2515,8 @@ static int em_cmp(struct x86_emulate_ctxt *ctxt) static int em_test(struct x86_emulate_ctxt *ctxt) { emulate_2op_SrcV(ctxt, "test"); + /* Disable writeback. */ + ctxt->dst.type = OP_NONE; return X86EMUL_CONTINUE; } |