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e4892e3396
This PR prepares for the s390x support. It introduces: - a generalization of ccw and pci devices. The variables for the pci devices have been renamed by removing the Pci suffix. They have been moved to the qemu_arch_base.go - the mapping isVirtioPCI has been move to qemu_arch_base.go because in this way a different mapping can be added for other architecture (e.g s390x) - the functions QemuNetdevParam and QemuDeviceParam have been moved to qemu_arch_base.go. In this way, they could be reimplemented for other architecture for the case VHOSTUSER - a function disableModern has been introduced to check if the device is a pci device and then returns the right parameters. In the case of ccw devices, they don't have the disable-modern flag - a function mqParameter has been introduced to return the right parameters for the mq case. The virtio-net-ccw device doesn't have the vectors flag - in qemu_arch_base_test.go contains the test and strings that can be overwritten for other architectures (e.g s390). The devices names and the flags for the devices can be overwritten. - the string for the romfile has been replaced by a variable romfile that could be left empty if the devices doesn't support a romfile as for the ccw devices for s390. - clean-up: the disable-modern=on/off options have been changed to disable-modern=true/false. In the code there was a mixture of on/true off/false Fixes: #61 Co-authored-by: Yash D Jain <ydjainopensource@gmail.com> Signed-off-by: Alice Frosi <afrosi@de.ibm.com>
104 lines
2.7 KiB
Go
104 lines
2.7 KiB
Go
// +build !s390x
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/*
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// Copyright (c) 2016 Intel Corporation
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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*/
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package qemu
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const (
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// Virtio9P is the 9pfs device driver.
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Virtio9P DeviceDriver = "virtio-9p-pci"
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// VirtioSerial is the serial device driver.
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VirtioSerial DeviceDriver = "virtio-serial-pci"
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// VirtioNet is the virt-io pci networking device driver.
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VirtioNet DeviceDriver = VirtioNetPCI
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// Vfio is the vfio driver
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Vfio DeviceDriver = "vfio-pci"
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// VirtioScsi is the virtio-scsi device
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VirtioScsi DeviceDriver = "virtio-scsi-pci"
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// VHostVSock is a generic Vsock vhost device
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VHostVSock DeviceDriver = "vhost-vsock-pci"
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)
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// isVirtioPCI is a map indicating if a DeviceDriver is considered as a
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// virtio PCI device, which is helpful to determine if the option "romfile"
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// applies or not to this specific device.
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var isVirtioPCI = map[DeviceDriver]bool{
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NVDIMM: false,
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Virtio9P: true,
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VirtioNetPCI: true,
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VirtioSerial: true,
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VirtioBlock: true,
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Console: false,
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VirtioSerialPort: false,
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VHostVSock: true,
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VirtioRng: true,
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VirtioBalloon: true,
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VhostUserSCSI: true,
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VhostUserBlk: true,
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Vfio: true,
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VirtioScsi: true,
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PCIBridgeDriver: true,
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PCIePCIBridgeDriver: true,
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}
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// QemuNetdevParam converts to the QEMU -netdev parameter notation
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func (n NetDeviceType) QemuNetdevParam() string {
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switch n {
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case TAP:
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return "tap"
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case MACVTAP:
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return "tap"
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case IPVTAP:
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return "tap"
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case VETHTAP:
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return "tap" // -netdev type=tap -device virtio-net-pci
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case VFIO:
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return "" // -device vfio-pci (no netdev)
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case VHOSTUSER:
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return "vhost-user" // -netdev type=vhost-user (no device)
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default:
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return ""
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}
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}
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// QemuDeviceParam converts to the QEMU -device parameter notation
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func (n NetDeviceType) QemuDeviceParam() DeviceDriver {
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switch n {
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case TAP:
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return "virtio-net-pci"
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case MACVTAP:
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return "virtio-net-pci"
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case IPVTAP:
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return "virtio-net-pci"
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case VETHTAP:
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return "virtio-net-pci" // -netdev type=tap -device virtio-net-pci
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case VFIO:
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return "vfio-pci" // -device vfio-pci (no netdev)
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case VHOSTUSER:
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return "" // -netdev type=vhost-user (no device)
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default:
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return ""
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}
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}
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