root / qemu-config.c @ c37cc7b0
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#include "qemu-common.h" |
|---|---|
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#include "qemu-option.h" |
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#include "qemu-config.h" |
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#include "sysemu.h" |
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#include "hw/qdev.h" |
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|
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QemuOptsList qemu_drive_opts = {
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.name = "drive",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head), |
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.desc = {
|
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{
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.name = "bus",
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.type = QEMU_OPT_NUMBER, |
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.help = "bus number",
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},{
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.name = "unit",
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.type = QEMU_OPT_NUMBER, |
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.help = "unit number (i.e. lun for scsi)",
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},{
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.name = "if",
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.type = QEMU_OPT_STRING, |
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.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
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},{
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.name = "index",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "cyls",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of cylinders (ide disk geometry)",
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},{
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.name = "heads",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of heads (ide disk geometry)",
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},{
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.name = "secs",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of sectors (ide disk geometry)",
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},{
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.name = "trans",
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.type = QEMU_OPT_STRING, |
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.help = "chs translation (auto, lba. none)",
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},{
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.name = "media",
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.type = QEMU_OPT_STRING, |
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.help = "media type (disk, cdrom)",
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},{
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.name = "snapshot",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "file",
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.type = QEMU_OPT_STRING, |
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.help = "disk image",
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},{
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.name = "cache",
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.type = QEMU_OPT_STRING, |
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.help = "host cache usage (none, writeback, writethrough)",
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},{
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.name = "aio",
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.type = QEMU_OPT_STRING, |
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.help = "host AIO implementation (threads, native)",
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},{
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.name = "format",
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.type = QEMU_OPT_STRING, |
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.help = "disk format (raw, qcow2, ...)",
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},{
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.name = "serial",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "rerror",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "werror",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "addr",
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.type = QEMU_OPT_STRING, |
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.help = "pci address (virtio only)",
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},{
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.name = "readonly",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
|
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}, |
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}; |
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|
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QemuOptsList qemu_chardev_opts = {
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.name = "chardev",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
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.desc = {
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{
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.name = "backend",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "path",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "host",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "port",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "localaddr",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "localport",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "to",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "ipv4",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "ipv6",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "wait",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "server",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "delay",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "telnet",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "width",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "height",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "cols",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "rows",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "mux",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "signal",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_device_opts = {
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.name = "device",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), |
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.desc = {
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/*
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* no elements => accept any
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* sanity checking will happen later
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* when setting device properties
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*/
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{ /* end if list */ }
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}, |
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}; |
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QemuOptsList qemu_netdev_opts = {
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.name = "netdev",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), |
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.desc = {
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/*
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* no elements => accept any params
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* validation will happen later
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*/
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{ /* end of list */ }
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}, |
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}; |
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QemuOptsList qemu_net_opts = {
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.name = "net",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), |
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.desc = {
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/*
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* no elements => accept any params
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* validation will happen later
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*/
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{ /* end of list */ }
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}, |
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}; |
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QemuOptsList qemu_rtc_opts = {
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.name = "rtc",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), |
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.desc = {
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{
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.name = "base",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "clock",
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.type = QEMU_OPT_STRING, |
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#ifdef TARGET_I386
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},{
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.name = "driftfix",
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.type = QEMU_OPT_STRING, |
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#endif
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}, |
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{ /* end if list */ }
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}, |
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}; |
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QemuOptsList qemu_global_opts = {
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.name = "global",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), |
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.desc = {
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{
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.name = "driver",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "property",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "value",
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.type = QEMU_OPT_STRING, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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QemuOptsList qemu_mon_opts = {
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.name = "mon",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head), |
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.desc = {
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{
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.name = "mode",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "chardev",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "default",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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static QemuOptsList *lists[] = {
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&qemu_drive_opts, |
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&qemu_chardev_opts, |
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&qemu_device_opts, |
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&qemu_netdev_opts, |
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&qemu_net_opts, |
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&qemu_rtc_opts, |
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&qemu_global_opts, |
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&qemu_mon_opts, |
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NULL,
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}; |
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static QemuOptsList *find_list(const char *group) |
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{
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int i;
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for (i = 0; lists[i] != NULL; i++) { |
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if (strcmp(lists[i]->name, group) == 0) |
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break;
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} |
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if (lists[i] == NULL) { |
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qemu_error("there is no option group \"%s\"\n", group);
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} |
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return lists[i];
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} |
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|
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int qemu_set_option(const char *str) |
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{
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char group[64], id[64], arg[64]; |
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QemuOptsList *list; |
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QemuOpts *opts; |
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int rc, offset;
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rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
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if (rc < 3 || str[offset] != '=') { |
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qemu_error("can't parse: \"%s\"\n", str);
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return -1; |
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} |
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list = find_list(group); |
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if (list == NULL) { |
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return -1; |
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} |
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opts = qemu_opts_find(list, id); |
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if (!opts) {
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qemu_error("there is no %s \"%s\" defined\n",
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list->name, id); |
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return -1; |
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} |
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|
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if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
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return -1; |
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} |
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return 0; |
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} |
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|
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int qemu_global_option(const char *str) |
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{
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char driver[64], property[64]; |
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QemuOpts *opts; |
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int rc, offset;
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|
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rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
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if (rc < 2 || str[offset] != '=') { |
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qemu_error("can't parse: \"%s\"\n", str);
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return -1; |
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} |
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|
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opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
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qemu_opt_set(opts, "driver", driver);
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qemu_opt_set(opts, "property", property);
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qemu_opt_set(opts, "value", str+offset+1); |
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return 0; |
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} |
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|
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static int qemu_add_one_global(QemuOpts *opts, void *opaque) |
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{
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GlobalProperty *g; |
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|
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g = qemu_mallocz(sizeof(*g));
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g->driver = qemu_opt_get(opts, "driver");
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g->property = qemu_opt_get(opts, "property");
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g->value = qemu_opt_get(opts, "value");
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qdev_prop_register_global(g); |
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return 0; |
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} |
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|
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void qemu_add_globals(void) |
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{
|
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qemu_opts_foreach(&qemu_global_opts, qemu_add_one_global, NULL, 0); |
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} |
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|
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struct ConfigWriteData {
|
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QemuOptsList *list; |
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FILE *fp; |
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}; |
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|
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static int config_write_opt(const char *name, const char *value, void *opaque) |
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{
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struct ConfigWriteData *data = opaque;
|
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|
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fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
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return 0; |
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} |
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|
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static int config_write_opts(QemuOpts *opts, void *opaque) |
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{
|
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struct ConfigWriteData *data = opaque;
|
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const char *id = qemu_opts_id(opts); |
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|
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if (id) {
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fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
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} else {
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fprintf(data->fp, "[%s]\n", data->list->name);
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} |
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qemu_opt_foreach(opts, config_write_opt, data, 0);
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fprintf(data->fp, "\n");
|
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return 0; |
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} |
| 365 |
|
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void qemu_config_write(FILE *fp)
|
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{
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struct ConfigWriteData data = { .fp = fp };
|
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int i;
|
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|
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fprintf(fp, "# qemu config file\n\n");
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for (i = 0; lists[i] != NULL; i++) { |
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data.list = lists[i]; |
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qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
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} |
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} |
| 377 |
|
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int qemu_config_parse(FILE *fp)
|
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{
|
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char line[1024], group[64], id[64], arg[64], value[1024]; |
| 381 |
QemuOptsList *list = NULL;
|
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QemuOpts *opts = NULL;
|
| 383 |
|
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while (fgets(line, sizeof(line), fp) != NULL) { |
| 385 |
if (line[0] == '\n') { |
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/* skip empty lines */
|
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continue;
|
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} |
| 389 |
if (line[0] == '#') { |
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/* comment */
|
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continue;
|
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} |
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if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
| 394 |
/* group with id */
|
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list = find_list(group); |
| 396 |
if (list == NULL) |
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return -1; |
| 398 |
opts = qemu_opts_create(list, id, 1);
|
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continue;
|
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} |
| 401 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
| 402 |
/* group without id */
|
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list = find_list(group); |
| 404 |
if (list == NULL) |
| 405 |
return -1; |
| 406 |
opts = qemu_opts_create(list, NULL, 0); |
| 407 |
continue;
|
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} |
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if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
| 410 |
/* arg = value */
|
| 411 |
if (opts == NULL) { |
| 412 |
fprintf(stderr, "no group defined\n");
|
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return -1; |
| 414 |
} |
| 415 |
if (qemu_opt_set(opts, arg, value) != 0) { |
| 416 |
fprintf(stderr, "failed to set \"%s\" for %s\n",
|
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arg, group); |
| 418 |
return -1; |
| 419 |
} |
| 420 |
continue;
|
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} |
| 422 |
fprintf(stderr, "parse error: %s\n", line);
|
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return -1; |
| 424 |
} |
| 425 |
return 0; |
| 426 |
} |