diff options
Diffstat (limited to 'arch/x86/kvm/x86.c')
| -rw-r--r-- | arch/x86/kvm/x86.c | 41 |
1 files changed, 24 insertions, 17 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 291ad5375747..9e1496cb2345 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -5932,23 +5932,30 @@ static bool kvm_vcpu_check_breakpoint(struct kvm_vcpu *vcpu, int *r) static bool is_vmware_backdoor_opcode(struct x86_emulate_ctxt *ctxt) { - if (ctxt->opcode_len != 1) - return false; - - switch (ctxt->b) { - case 0xe4: /* IN */ - case 0xe5: - case 0xec: - case 0xed: - case 0xe6: /* OUT */ - case 0xe7: - case 0xee: - case 0xef: - case 0x6c: /* INS */ - case 0x6d: - case 0x6e: /* OUTS */ - case 0x6f: - return true; + switch (ctxt->opcode_len) { + case 1: + switch (ctxt->b) { + case 0xe4: /* IN */ + case 0xe5: + case 0xec: + case 0xed: + case 0xe6: /* OUT */ + case 0xe7: + case 0xee: + case 0xef: + case 0x6c: /* INS */ + case 0x6d: + case 0x6e: /* OUTS */ + case 0x6f: + return true; + } + break; + case 2: + switch (ctxt->b) { + case 0x33: /* RDPMC */ + return true; + } + break; } return false; |