static int vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) { int error; int bytes, port, in, out, string; int vcpu; vcpu = *pvcpu; port = vme->u.inout.port; bytes = vme->u.inout.bytes; string = vme->u.inout.string; in = vme->u.inout.in; out = !in; /* Extra-special case of host notifications */ if (out && port == GUEST_NIO_PORT) { error = vmexit_handle_notify(ctx, vme, pvcpu, vme->u.inout.eax); return (error); } error = emulate_inout(ctx, vcpu, vme, strictio); if (error) { fprintf(stderr, "Unhandled %s%c 0x%04x at 0x%lx\n", in ? "in" : "out", bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port, vmexit->rip); return (VMEXIT_ABORT); } else { return (VMEXIT_CONTINUE); } }
static int vmexit_inout(struct vmctx *ctx, struct vm_exit *vme, int *pvcpu) { int error; int bytes, port, in, out; uint32_t eax; int vcpu; vcpu = *pvcpu; port = vme->u.inout.port; bytes = vme->u.inout.bytes; eax = vme->u.inout.eax; in = vme->u.inout.in; out = !in; /* We don't deal with these */ if (vme->u.inout.string || vme->u.inout.rep) return (VMEXIT_ABORT); /* Special case of guest reset */ if (out && port == 0x64 && (uint8_t)eax == 0xFE) return (vmexit_catch_reset()); /* Extra-special case of host notifications */ if (out && port == GUEST_NIO_PORT) return (vmexit_handle_notify(ctx, vme, pvcpu, eax)); error = emulate_inout(ctx, vcpu, in, port, bytes, &eax, strictio); if (error == INOUT_OK && in) error = vm_set_register(ctx, vcpu, VM_REG_GUEST_RAX, eax); switch (error) { case INOUT_OK: return (VMEXIT_CONTINUE); case INOUT_RESET: return (VMEXIT_RESET); case INOUT_POWEROFF: return (VMEXIT_POWEROFF); default: fprintf(stderr, "Unhandled %s%c 0x%04x\n", in ? "in" : "out", bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port); return (vmexit_catch_inout()); } }
static void vmexit_inout(struct vmctx *ctx, struct vhm_request *vhm_req, int *pvcpu) { int error; int bytes, port, in; port = vhm_req->reqs.pio_request.address; bytes = vhm_req->reqs.pio_request.size; in = (vhm_req->reqs.pio_request.direction == REQUEST_READ); error = emulate_inout(ctx, pvcpu, &vhm_req->reqs.pio_request); if (error) { fprintf(stderr, "Unhandled %s%c 0x%04x\n", in ? "in" : "out", bytes == 1 ? 'b' : (bytes == 2 ? 'w' : 'l'), port); if (in) { vhm_req->reqs.pio_request.value = VHM_REQ_PIO_INVAL; } } }