root / qemu-config.c @ 74db920c
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#include "qemu-common.h" |
---|---|
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#include "qemu-error.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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.implied_opt_name = "backend",
|
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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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#ifdef CONFIG_LINUX
|
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QemuOptsList qemu_fsdev_opts = { |
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.name = "fsdev",
|
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.implied_opt_name = "fstype",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_fsdev_opts.head), |
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.desc = { |
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{ |
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.name = "fstype",
|
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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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{ /*End of list */ }
|
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}, |
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}; |
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#endif
|
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|
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QemuOptsList qemu_device_opts = { |
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.name = "device",
|
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.implied_opt_name = "driver",
|
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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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|
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QemuOptsList qemu_netdev_opts = { |
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.name = "netdev",
|
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.implied_opt_name = "type",
|
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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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|
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QemuOptsList qemu_net_opts = { |
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.name = "net",
|
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.implied_opt_name = "type",
|
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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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|
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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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|
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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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|
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QemuOptsList qemu_mon_opts = { |
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.name = "mon",
|
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.implied_opt_name = "chardev",
|
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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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|
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QemuOptsList qemu_cpudef_opts = { |
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.name = "cpudef",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head), |
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.desc = { |
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{ |
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.name = "name",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "level",
|
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "vendor",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "family",
|
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "model",
|
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "stepping",
|
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "feature_edx", /* cpuid 0000_0001.edx */ |
293 |
.type = QEMU_OPT_STRING, |
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},{ |
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.name = "feature_ecx", /* cpuid 0000_0001.ecx */ |
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.type = QEMU_OPT_STRING, |
297 |
},{ |
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.name = "extfeature_edx", /* cpuid 8000_0001.edx */ |
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ |
302 |
.type = QEMU_OPT_STRING, |
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},{ |
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.name = "xlevel",
|
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.type = QEMU_OPT_NUMBER, |
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},{ |
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.name = "model_id",
|
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "vendor_override",
|
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.type = QEMU_OPT_NUMBER, |
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}, |
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{ /* end of list */ }
|
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}, |
315 |
}; |
316 |
|
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static QemuOptsList *vm_config_groups[] = {
|
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&qemu_drive_opts, |
319 |
&qemu_chardev_opts, |
320 |
&qemu_device_opts, |
321 |
&qemu_netdev_opts, |
322 |
&qemu_net_opts, |
323 |
&qemu_rtc_opts, |
324 |
&qemu_global_opts, |
325 |
&qemu_mon_opts, |
326 |
&qemu_cpudef_opts, |
327 |
NULL,
|
328 |
}; |
329 |
|
330 |
static QemuOptsList *find_list(QemuOptsList **lists, const char *group) |
331 |
{ |
332 |
int i;
|
333 |
|
334 |
for (i = 0; lists[i] != NULL; i++) { |
335 |
if (strcmp(lists[i]->name, group) == 0) |
336 |
break;
|
337 |
} |
338 |
if (lists[i] == NULL) { |
339 |
error_report("there is no option group \"%s\"", group);
|
340 |
} |
341 |
return lists[i];
|
342 |
} |
343 |
|
344 |
QemuOptsList *qemu_find_opts(const char *group) |
345 |
{ |
346 |
return find_list(vm_config_groups, group);
|
347 |
} |
348 |
|
349 |
int qemu_set_option(const char *str) |
350 |
{ |
351 |
char group[64], id[64], arg[64]; |
352 |
QemuOptsList *list; |
353 |
QemuOpts *opts; |
354 |
int rc, offset;
|
355 |
|
356 |
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
357 |
if (rc < 3 || str[offset] != '=') { |
358 |
error_report("can't parse: \"%s\"", str);
|
359 |
return -1; |
360 |
} |
361 |
|
362 |
list = qemu_find_opts(group); |
363 |
if (list == NULL) { |
364 |
return -1; |
365 |
} |
366 |
|
367 |
opts = qemu_opts_find(list, id); |
368 |
if (!opts) {
|
369 |
error_report("there is no %s \"%s\" defined",
|
370 |
list->name, id); |
371 |
return -1; |
372 |
} |
373 |
|
374 |
if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
375 |
return -1; |
376 |
} |
377 |
return 0; |
378 |
} |
379 |
|
380 |
int qemu_global_option(const char *str) |
381 |
{ |
382 |
char driver[64], property[64]; |
383 |
QemuOpts *opts; |
384 |
int rc, offset;
|
385 |
|
386 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
387 |
if (rc < 2 || str[offset] != '=') { |
388 |
error_report("can't parse: \"%s\"", str);
|
389 |
return -1; |
390 |
} |
391 |
|
392 |
opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
393 |
qemu_opt_set(opts, "driver", driver);
|
394 |
qemu_opt_set(opts, "property", property);
|
395 |
qemu_opt_set(opts, "value", str+offset+1); |
396 |
return 0; |
397 |
} |
398 |
|
399 |
struct ConfigWriteData {
|
400 |
QemuOptsList *list; |
401 |
FILE *fp; |
402 |
}; |
403 |
|
404 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
405 |
{ |
406 |
struct ConfigWriteData *data = opaque;
|
407 |
|
408 |
fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
409 |
return 0; |
410 |
} |
411 |
|
412 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
413 |
{ |
414 |
struct ConfigWriteData *data = opaque;
|
415 |
const char *id = qemu_opts_id(opts); |
416 |
|
417 |
if (id) {
|
418 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
419 |
} else {
|
420 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
421 |
} |
422 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
423 |
fprintf(data->fp, "\n");
|
424 |
return 0; |
425 |
} |
426 |
|
427 |
void qemu_config_write(FILE *fp)
|
428 |
{ |
429 |
struct ConfigWriteData data = { .fp = fp };
|
430 |
QemuOptsList **lists = vm_config_groups; |
431 |
int i;
|
432 |
|
433 |
fprintf(fp, "# qemu config file\n\n");
|
434 |
for (i = 0; lists[i] != NULL; i++) { |
435 |
data.list = lists[i]; |
436 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
437 |
} |
438 |
} |
439 |
|
440 |
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) |
441 |
{ |
442 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
443 |
Location loc; |
444 |
QemuOptsList *list = NULL;
|
445 |
QemuOpts *opts = NULL;
|
446 |
int res = -1, lno = 0; |
447 |
|
448 |
loc_push_none(&loc); |
449 |
while (fgets(line, sizeof(line), fp) != NULL) { |
450 |
loc_set_file(fname, ++lno); |
451 |
if (line[0] == '\n') { |
452 |
/* skip empty lines */
|
453 |
continue;
|
454 |
} |
455 |
if (line[0] == '#') { |
456 |
/* comment */
|
457 |
continue;
|
458 |
} |
459 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
460 |
/* group with id */
|
461 |
list = find_list(lists, group); |
462 |
if (list == NULL) |
463 |
goto out;
|
464 |
opts = qemu_opts_create(list, id, 1);
|
465 |
continue;
|
466 |
} |
467 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
468 |
/* group without id */
|
469 |
list = find_list(lists, group); |
470 |
if (list == NULL) |
471 |
goto out;
|
472 |
opts = qemu_opts_create(list, NULL, 0); |
473 |
continue;
|
474 |
} |
475 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
476 |
/* arg = value */
|
477 |
if (opts == NULL) { |
478 |
error_report("no group defined");
|
479 |
goto out;
|
480 |
} |
481 |
if (qemu_opt_set(opts, arg, value) != 0) { |
482 |
goto out;
|
483 |
} |
484 |
continue;
|
485 |
} |
486 |
error_report("parse error");
|
487 |
goto out;
|
488 |
} |
489 |
if (ferror(fp)) {
|
490 |
error_report("error reading file");
|
491 |
goto out;
|
492 |
} |
493 |
res = 0;
|
494 |
out:
|
495 |
loc_pop(&loc); |
496 |
return res;
|
497 |
} |
498 |
|
499 |
int qemu_read_config_file(const char *filename) |
500 |
{ |
501 |
FILE *f = fopen(filename, "r");
|
502 |
if (f == NULL) { |
503 |
return -errno;
|
504 |
} |
505 |
|
506 |
if (qemu_config_parse(f, vm_config_groups, filename) != 0) { |
507 |
return -EINVAL;
|
508 |
} |
509 |
fclose(f); |
510 |
|
511 |
return 0; |
512 |
} |