-static int io_get_override(struct kvm_vcpu *vcpu,
- struct vmcb_seg **seg,
- int *addr_override)
-{
- u8 inst[MAX_INST_SIZE];
- unsigned ins_length;
- gva_t rip;
- int i;
-
- rip = vcpu->svm->vmcb->save.rip;
- ins_length = vcpu->svm->next_rip - rip;
- rip += vcpu->svm->vmcb->save.cs.base;
-
- if (ins_length > MAX_INST_SIZE)
- printk(KERN_DEBUG
- "%s: inst length err, cs base 0x%llx rip 0x%llx "
- "next rip 0x%llx ins_length %u\n",
- __FUNCTION__,
- vcpu->svm->vmcb->save.cs.base,
- vcpu->svm->vmcb->save.rip,
- vcpu->svm->vmcb->control.exit_info_2,
- ins_length);
-
- if (kvm_read_guest(vcpu, rip, ins_length, inst) != ins_length)
- /* #PF */
- return 0;
-
- *addr_override = 0;
- *seg = NULL;
- for (i = 0; i < ins_length; i++)
- switch (inst[i]) {
- case 0xf0:
- case 0xf2:
- case 0xf3:
- case 0x66:
- continue;
- case 0x67:
- *addr_override = 1;
- continue;
- case 0x2e:
- *seg = &vcpu->svm->vmcb->save.cs;
- continue;
- case 0x36:
- *seg = &vcpu->svm->vmcb->save.ss;
- continue;
- case 0x3e:
- *seg = &vcpu->svm->vmcb->save.ds;
- continue;
- case 0x26:
- *seg = &vcpu->svm->vmcb->save.es;
- continue;
- case 0x64:
- *seg = &vcpu->svm->vmcb->save.fs;
- continue;
- case 0x65:
- *seg = &vcpu->svm->vmcb->save.gs;
- continue;
- default:
- return 1;
- }
- printk(KERN_DEBUG "%s: unexpected\n", __FUNCTION__);
- return 0;
-}
-
-static unsigned long io_adress(struct kvm_vcpu *vcpu, int ins, gva_t *address)