int
vm_entry_intinfo(struct vm *vm, int vcpuid, uint64_t *retinfo)
{
struct vcpu *vcpu;
uint64_t info1, info2;
int valid;
KASSERT(vcpuid >= 0 && vcpuid < VM_MAXCPU, ("invalid vcpu %d", vcpuid));
vcpu = &vm->vcpu[vcpuid];
info1 = vcpu->exitintinfo;
vcpu->exitintinfo = 0;
info2 = 0;
if (vcpu->exception_pending) {
info2 = vcpu_exception_intinfo(vcpu);
vcpu->exception_pending = 0;
VCPU_CTR2(vm, vcpuid, "Exception %d delivered: %#llx",
vcpu->exc_vector, info2);
}
if ((info1 & VM_INTINFO_VALID) && (info2 & VM_INTINFO_VALID)) {
valid = nested_fault(vm, vcpuid, info1, info2, retinfo);
} else if (info1 & VM_INTINFO_VALID) {
*retinfo = info1;
valid = 1;
} else if (info2 & VM_INTINFO_VALID) {
*retinfo = info2;
valid = 1;
} else {
valid = 0;
}
if (valid) {
VCPU_CTR4(vm, vcpuid, "%s: info1(%#llx), info2(%#llx), "
"retinfo(%#llx)", __func__, info1, info2, *retinfo);
}
return (valid);
}
int
vm_handle_inout(struct vm *vm, int vcpuid, struct vm_exit *vmexit, bool *retu)
{
int bytes, error;
bytes = vmexit->u.inout.bytes;
KASSERT(bytes == 1 || bytes == 2 || bytes == 4,
("vm_handle_inout: invalid operand size %d", bytes));
if (vmexit->u.inout.string)
error = emulate_inout_str(vm, vcpuid, vmexit, retu);
else
error = emulate_inout_port(vm, vcpuid, vmexit, retu);
VCPU_CTR4(vm, vcpuid, "%s%s 0x%04x: %s",
vmexit->u.inout.rep ? "rep " : "",
inout_instruction(vmexit),
vmexit->u.inout.port,
error ? "error" : (*retu ? "userspace" : "handled"));
return (error);
}
