From: Andrea Bolognani Date: Tue, 13 Feb 2024 18:24:03 +0000 (+0100) Subject: qemu: Validate USB controllers earlier X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=45eab0181e386a35b244ab180f90b48aa9fca304;p=thirdparty%2Flibvirt.git qemu: Validate USB controllers earlier Right now we call qemuValidateDomainDeviceDefControllerUSB() quite late, just as we're generating the QEMU command line. The original intention was likely to prevent configurations from being rejected, even though a default USB controller model could not be found, because using -usb could be used as a last resort. As it turns out, this premise was always flawed: in order for -usb to work, the underlying device still needs to be compiled into QEMU, and if that was the case then the earlier code would have detected its presence and set the model name accordingly. More recently, we have dropped the use of -usb altogether so there's simply no longer anything to fall back to. With all this in mind, we can move the validation step much earlier, making for a better user experience as any issues will be reported when the domain is defined rather than when an attempt is made to start it. Signed-off-by: Andrea Bolognani Reviewed-by: Michal Privoznik Reviewed-by: Peter Krempa Reviewed-by: Ján Tomko --- diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index d43c0fd21d..08e2a5147d 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -2558,112 +2558,6 @@ qemuBuildFilesystemCommandLine(virCommand *cmd, } -static bool -qemuDomainControllerUSBIsPCI(const virDomainControllerDef *controller) -{ - switch ((virDomainControllerModelUSB)controller->model) { - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI: - /* The models above are PCI devices */ - return true; - - case VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB1: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB2: - /* The models above are not relevant to the QEMU driver */ - return false; - - case VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_LAST: - default: - return false; - } -} - - -static int -qemuControllerModelUSBToCaps(int model) -{ - switch (model) { - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI: - return QEMU_CAPS_PIIX3_USB_UHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI: - return QEMU_CAPS_PIIX4_USB_UHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI: - return QEMU_CAPS_USB_EHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2: - case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3: - return QEMU_CAPS_ICH9_USB_EHCI1; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI: - return QEMU_CAPS_VT82C686B_USB_UHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI: - return QEMU_CAPS_PCI_OHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI: - return QEMU_CAPS_NEC_USB_XHCI; - case VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI: - return QEMU_CAPS_DEVICE_QEMU_XHCI; - default: - return -1; - } -} - - -static int -qemuValidateDomainDeviceDefControllerUSB(const virDomainControllerDef *controller, - const virDomainDef *def, - virQEMUCaps *qemuCaps) -{ - if (controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE) - return 0; - - if (controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Unable to determine model for USB controller idx=%1$d"), - controller->idx); - return -1; - } - - if (qemuDomainControllerUSBIsPCI(controller) && - !qemuDomainSupportsPCI(def)) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("USB controller model '%1$s' requires PCI but machine type '%2$s' does not support PCI"), - virDomainControllerModelUSBTypeToString(controller->model), - def->os.machine); - return -1; - } - - if (!virQEMUCapsGet(qemuCaps, qemuControllerModelUSBToCaps(controller->model))) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("USB controller model '%1$s' not supported in this QEMU binary"), - virDomainControllerModelUSBTypeToString(controller->model)); - return -1; - } - - if (controller->opts.usbopts.ports != -1) { - if (controller->model != VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI && - controller->model != VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("usb controller type '%1$s' doesn't support 'ports' with this QEMU binary"), - virDomainControllerModelUSBTypeToString(controller->model)); - return -1; - } - } - - return 0; -} - - static const char * qemuBuildUSBControllerFindMasterAlias(const virDomainDef *domainDef, const virDomainControllerDef *def) @@ -2691,14 +2585,10 @@ qemuBuildUSBControllerFindMasterAlias(const virDomainDef *domainDef, static virJSONValue * qemuBuildUSBControllerDevProps(const virDomainDef *domainDef, - virDomainControllerDef *def, - virQEMUCaps *qemuCaps) + virDomainControllerDef *def) { g_autoptr(virJSONValue) props = NULL; - if (qemuValidateDomainDeviceDefControllerUSB(def, domainDef, qemuCaps) < 0) - return NULL; - if (virJSONValueObjectAdd(&props, "s:driver", qemuControllerModelUSBTypeToString(def->model), "k:p2", def->opts.usbopts.ports, @@ -2994,7 +2884,7 @@ qemuBuildControllerDevProps(const virDomainDef *domainDef, break; case VIR_DOMAIN_CONTROLLER_TYPE_USB: - if (!(props = qemuBuildUSBControllerDevProps(domainDef, def, qemuCaps))) + if (!(props = qemuBuildUSBControllerDevProps(domainDef, def))) return -1; break; diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index 456f9ee2f2..7f3ffe8bd5 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -3864,6 +3864,112 @@ qemuValidateDomainDeviceDefControllerSCSI(const virDomainControllerDef *controll } +static bool +qemuDomainControllerUSBIsPCI(const virDomainControllerDef *controller) +{ + switch ((virDomainControllerModelUSB)controller->model) { + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI: + /* The models above are PCI devices */ + return true; + + case VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB1: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_QUSB2: + /* The models above are not relevant to the QEMU driver */ + return false; + + case VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_LAST: + default: + return false; + } +} + + +static int +qemuControllerModelUSBToCaps(int model) +{ + switch (model) { + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX3_UHCI: + return QEMU_CAPS_PIIX3_USB_UHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PIIX4_UHCI: + return QEMU_CAPS_PIIX4_USB_UHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_EHCI: + return QEMU_CAPS_USB_EHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_EHCI1: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI1: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI2: + case VIR_DOMAIN_CONTROLLER_MODEL_USB_ICH9_UHCI3: + return QEMU_CAPS_ICH9_USB_EHCI1; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_VT82C686B_UHCI: + return QEMU_CAPS_VT82C686B_USB_UHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_PCI_OHCI: + return QEMU_CAPS_PCI_OHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI: + return QEMU_CAPS_NEC_USB_XHCI; + case VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI: + return QEMU_CAPS_DEVICE_QEMU_XHCI; + default: + return -1; + } +} + + +static int +qemuValidateDomainDeviceDefControllerUSB(const virDomainControllerDef *controller, + const virDomainDef *def, + virQEMUCaps *qemuCaps) +{ + if (controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_NONE) + return 0; + + if (controller->model == VIR_DOMAIN_CONTROLLER_MODEL_USB_DEFAULT) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Unable to determine model for USB controller idx=%1$d"), + controller->idx); + return -1; + } + + if (qemuDomainControllerUSBIsPCI(controller) && + !qemuDomainSupportsPCI(def)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("USB controller model '%1$s' requires PCI but machine type '%2$s' does not support PCI"), + virDomainControllerModelUSBTypeToString(controller->model), + def->os.machine); + return -1; + } + + if (!virQEMUCapsGet(qemuCaps, qemuControllerModelUSBToCaps(controller->model))) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("USB controller model '%1$s' not supported in this QEMU binary"), + virDomainControllerModelUSBTypeToString(controller->model)); + return -1; + } + + if (controller->opts.usbopts.ports != -1) { + if (controller->model != VIR_DOMAIN_CONTROLLER_MODEL_USB_NEC_XHCI && + controller->model != VIR_DOMAIN_CONTROLLER_MODEL_USB_QEMU_XHCI) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("usb controller type '%1$s' doesn't support 'ports' with this QEMU binary"), + virDomainControllerModelUSBTypeToString(controller->model)); + return -1; + } + } + + return 0; +} + + /** * virValidateControllerPCIModelNameToQEMUCaps: * @modelName: model name @@ -4533,10 +4639,14 @@ qemuValidateDomainDeviceDefController(const virDomainControllerDef *controller, qemuCaps); break; + case VIR_DOMAIN_CONTROLLER_TYPE_USB: + ret = qemuValidateDomainDeviceDefControllerUSB(controller, def, + qemuCaps); + break; + case VIR_DOMAIN_CONTROLLER_TYPE_FDC: case VIR_DOMAIN_CONTROLLER_TYPE_VIRTIO_SERIAL: case VIR_DOMAIN_CONTROLLER_TYPE_CCID: - case VIR_DOMAIN_CONTROLLER_TYPE_USB: case VIR_DOMAIN_CONTROLLER_TYPE_XENBUS: case VIR_DOMAIN_CONTROLLER_TYPE_ISA: case VIR_DOMAIN_CONTROLLER_TYPE_LAST: diff --git a/tests/qemuxmlconfdata/usb-controller-automatic-unavailable-pseries.ppc64-latest.abi-update.xml b/tests/qemuxmlconfdata/usb-controller-automatic-unavailable-pseries.ppc64-latest.abi-update.xml deleted file mode 100644 index 2b71e447e8..0000000000 --- a/tests/qemuxmlconfdata/usb-controller-automatic-unavailable-pseries.ppc64-latest.abi-update.xml +++ /dev/null @@ -1,31 +0,0 @@ - - QEMUGuest1 - c7a5fdbd-edaf-9455-926a-d65c16db1809 - 219100 - 219100 - 1 - - hvm - - - - POWER10 - - - destroy - restart - destroy - - /usr/bin/qemu-system-ppc64 - -
- - - - - -