root / qemu-config.c @ 1a1ea6f0
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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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static 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, unsafe)",
|
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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 of list */ }
|
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}, |
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}; |
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|
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static 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 of list */ }
|
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}, |
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}; |
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|
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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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.name = "security_model",
|
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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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|
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QemuOptsList qemu_virtfs_opts = { |
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.name = "virtfs",
|
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.implied_opt_name = "fstype",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_virtfs_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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.name = "mount_tag",
|
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.type = QEMU_OPT_STRING, |
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}, { |
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.name = "security_model",
|
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.type = QEMU_OPT_STRING, |
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}, |
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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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static 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 of list */ }
|
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}, |
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}; |
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|
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static 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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static 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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static 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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},{ |
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.name = "driftfix",
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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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|
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static 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 of list */ }
|
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}, |
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}; |
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|
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static 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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.name = "pretty",
|
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.type = QEMU_OPT_BOOL, |
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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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#ifdef CONFIG_SIMPLE_TRACE
|
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static QemuOptsList qemu_trace_opts = {
|
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.name = "trace",
|
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.implied_opt_name = "trace",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_trace_opts.head), |
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.desc = { |
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{ |
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.name = "file",
|
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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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#endif
|
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|
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static QemuOptsList qemu_cpudef_opts = {
|
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.name = "cpudef",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head), |
312 |
.desc = { |
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{ |
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.name = "name",
|
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.type = QEMU_OPT_STRING, |
316 |
},{ |
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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, |
328 |
},{ |
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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 */ |
333 |
.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, |
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},{ |
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.name = "extfeature_edx", /* cpuid 8000_0001.edx */ |
339 |
.type = QEMU_OPT_STRING, |
340 |
},{ |
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.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ |
342 |
.type = QEMU_OPT_STRING, |
343 |
},{ |
344 |
.name = "xlevel",
|
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.type = QEMU_OPT_NUMBER, |
346 |
},{ |
347 |
.name = "model_id",
|
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.type = QEMU_OPT_STRING, |
349 |
},{ |
350 |
.name = "vendor_override",
|
351 |
.type = QEMU_OPT_NUMBER, |
352 |
}, |
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{ /* end of list */ }
|
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}, |
355 |
}; |
356 |
|
357 |
QemuOptsList qemu_spice_opts = { |
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.name = "spice",
|
359 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head), |
360 |
.desc = { |
361 |
{ |
362 |
.name = "port",
|
363 |
.type = QEMU_OPT_NUMBER, |
364 |
},{ |
365 |
.name = "tls-port",
|
366 |
.type = QEMU_OPT_NUMBER, |
367 |
},{ |
368 |
.name = "addr",
|
369 |
.type = QEMU_OPT_STRING, |
370 |
},{ |
371 |
.name = "ipv4",
|
372 |
.type = QEMU_OPT_BOOL, |
373 |
},{ |
374 |
.name = "ipv6",
|
375 |
.type = QEMU_OPT_BOOL, |
376 |
},{ |
377 |
.name = "password",
|
378 |
.type = QEMU_OPT_STRING, |
379 |
},{ |
380 |
.name = "disable-ticketing",
|
381 |
.type = QEMU_OPT_BOOL, |
382 |
},{ |
383 |
.name = "x509-dir",
|
384 |
.type = QEMU_OPT_STRING, |
385 |
},{ |
386 |
.name = "x509-key-file",
|
387 |
.type = QEMU_OPT_STRING, |
388 |
},{ |
389 |
.name = "x509-key-password",
|
390 |
.type = QEMU_OPT_STRING, |
391 |
},{ |
392 |
.name = "x509-cert-file",
|
393 |
.type = QEMU_OPT_STRING, |
394 |
},{ |
395 |
.name = "x509-cacert-file",
|
396 |
.type = QEMU_OPT_STRING, |
397 |
},{ |
398 |
.name = "x509-dh-key-file",
|
399 |
.type = QEMU_OPT_STRING, |
400 |
},{ |
401 |
.name = "tls-ciphers",
|
402 |
.type = QEMU_OPT_STRING, |
403 |
},{ |
404 |
.name = "tls-channel",
|
405 |
.type = QEMU_OPT_STRING, |
406 |
},{ |
407 |
.name = "plaintext-channel",
|
408 |
.type = QEMU_OPT_STRING, |
409 |
},{ |
410 |
.name = "image-compression",
|
411 |
.type = QEMU_OPT_STRING, |
412 |
},{ |
413 |
.name = "jpeg-wan-compression",
|
414 |
.type = QEMU_OPT_STRING, |
415 |
},{ |
416 |
.name = "zlib-glz-wan-compression",
|
417 |
.type = QEMU_OPT_STRING, |
418 |
},{ |
419 |
.name = "streaming-video",
|
420 |
.type = QEMU_OPT_STRING, |
421 |
},{ |
422 |
.name = "agent-mouse",
|
423 |
.type = QEMU_OPT_BOOL, |
424 |
},{ |
425 |
.name = "playback-compression",
|
426 |
.type = QEMU_OPT_BOOL, |
427 |
}, |
428 |
{ /* end if list */ }
|
429 |
}, |
430 |
}; |
431 |
|
432 |
static QemuOptsList *vm_config_groups[32] = { |
433 |
&qemu_drive_opts, |
434 |
&qemu_chardev_opts, |
435 |
&qemu_device_opts, |
436 |
&qemu_netdev_opts, |
437 |
&qemu_net_opts, |
438 |
&qemu_rtc_opts, |
439 |
&qemu_global_opts, |
440 |
&qemu_mon_opts, |
441 |
&qemu_cpudef_opts, |
442 |
#ifdef CONFIG_SIMPLE_TRACE
|
443 |
&qemu_trace_opts, |
444 |
#endif
|
445 |
NULL,
|
446 |
}; |
447 |
|
448 |
static QemuOptsList *find_list(QemuOptsList **lists, const char *group) |
449 |
{ |
450 |
int i;
|
451 |
|
452 |
for (i = 0; lists[i] != NULL; i++) { |
453 |
if (strcmp(lists[i]->name, group) == 0) |
454 |
break;
|
455 |
} |
456 |
if (lists[i] == NULL) { |
457 |
error_report("there is no option group \"%s\"", group);
|
458 |
} |
459 |
return lists[i];
|
460 |
} |
461 |
|
462 |
QemuOptsList *qemu_find_opts(const char *group) |
463 |
{ |
464 |
return find_list(vm_config_groups, group);
|
465 |
} |
466 |
|
467 |
void qemu_add_opts(QemuOptsList *list)
|
468 |
{ |
469 |
int entries, i;
|
470 |
|
471 |
entries = ARRAY_SIZE(vm_config_groups); |
472 |
entries--; /* keep list NULL terminated */
|
473 |
for (i = 0; i < entries; i++) { |
474 |
if (vm_config_groups[i] == NULL) { |
475 |
vm_config_groups[i] = list; |
476 |
return;
|
477 |
} |
478 |
} |
479 |
fprintf(stderr, "ran out of space in vm_config_groups");
|
480 |
abort(); |
481 |
} |
482 |
|
483 |
int qemu_set_option(const char *str) |
484 |
{ |
485 |
char group[64], id[64], arg[64]; |
486 |
QemuOptsList *list; |
487 |
QemuOpts *opts; |
488 |
int rc, offset;
|
489 |
|
490 |
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
491 |
if (rc < 3 || str[offset] != '=') { |
492 |
error_report("can't parse: \"%s\"", str);
|
493 |
return -1; |
494 |
} |
495 |
|
496 |
list = qemu_find_opts(group); |
497 |
if (list == NULL) { |
498 |
return -1; |
499 |
} |
500 |
|
501 |
opts = qemu_opts_find(list, id); |
502 |
if (!opts) {
|
503 |
error_report("there is no %s \"%s\" defined",
|
504 |
list->name, id); |
505 |
return -1; |
506 |
} |
507 |
|
508 |
if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
509 |
return -1; |
510 |
} |
511 |
return 0; |
512 |
} |
513 |
|
514 |
int qemu_global_option(const char *str) |
515 |
{ |
516 |
char driver[64], property[64]; |
517 |
QemuOpts *opts; |
518 |
int rc, offset;
|
519 |
|
520 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
521 |
if (rc < 2 || str[offset] != '=') { |
522 |
error_report("can't parse: \"%s\"", str);
|
523 |
return -1; |
524 |
} |
525 |
|
526 |
opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
527 |
qemu_opt_set(opts, "driver", driver);
|
528 |
qemu_opt_set(opts, "property", property);
|
529 |
qemu_opt_set(opts, "value", str+offset+1); |
530 |
return 0; |
531 |
} |
532 |
|
533 |
struct ConfigWriteData {
|
534 |
QemuOptsList *list; |
535 |
FILE *fp; |
536 |
}; |
537 |
|
538 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
539 |
{ |
540 |
struct ConfigWriteData *data = opaque;
|
541 |
|
542 |
fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
543 |
return 0; |
544 |
} |
545 |
|
546 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
547 |
{ |
548 |
struct ConfigWriteData *data = opaque;
|
549 |
const char *id = qemu_opts_id(opts); |
550 |
|
551 |
if (id) {
|
552 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
553 |
} else {
|
554 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
555 |
} |
556 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
557 |
fprintf(data->fp, "\n");
|
558 |
return 0; |
559 |
} |
560 |
|
561 |
void qemu_config_write(FILE *fp)
|
562 |
{ |
563 |
struct ConfigWriteData data = { .fp = fp };
|
564 |
QemuOptsList **lists = vm_config_groups; |
565 |
int i;
|
566 |
|
567 |
fprintf(fp, "# qemu config file\n\n");
|
568 |
for (i = 0; lists[i] != NULL; i++) { |
569 |
data.list = lists[i]; |
570 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
571 |
} |
572 |
} |
573 |
|
574 |
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) |
575 |
{ |
576 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
577 |
Location loc; |
578 |
QemuOptsList *list = NULL;
|
579 |
QemuOpts *opts = NULL;
|
580 |
int res = -1, lno = 0; |
581 |
|
582 |
loc_push_none(&loc); |
583 |
while (fgets(line, sizeof(line), fp) != NULL) { |
584 |
loc_set_file(fname, ++lno); |
585 |
if (line[0] == '\n') { |
586 |
/* skip empty lines */
|
587 |
continue;
|
588 |
} |
589 |
if (line[0] == '#') { |
590 |
/* comment */
|
591 |
continue;
|
592 |
} |
593 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
594 |
/* group with id */
|
595 |
list = find_list(lists, group); |
596 |
if (list == NULL) |
597 |
goto out;
|
598 |
opts = qemu_opts_create(list, id, 1);
|
599 |
continue;
|
600 |
} |
601 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
602 |
/* group without id */
|
603 |
list = find_list(lists, group); |
604 |
if (list == NULL) |
605 |
goto out;
|
606 |
opts = qemu_opts_create(list, NULL, 0); |
607 |
continue;
|
608 |
} |
609 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
610 |
/* arg = value */
|
611 |
if (opts == NULL) { |
612 |
error_report("no group defined");
|
613 |
goto out;
|
614 |
} |
615 |
if (qemu_opt_set(opts, arg, value) != 0) { |
616 |
goto out;
|
617 |
} |
618 |
continue;
|
619 |
} |
620 |
error_report("parse error");
|
621 |
goto out;
|
622 |
} |
623 |
if (ferror(fp)) {
|
624 |
error_report("error reading file");
|
625 |
goto out;
|
626 |
} |
627 |
res = 0;
|
628 |
out:
|
629 |
loc_pop(&loc); |
630 |
return res;
|
631 |
} |
632 |
|
633 |
int qemu_read_config_file(const char *filename) |
634 |
{ |
635 |
FILE *f = fopen(filename, "r");
|
636 |
int ret;
|
637 |
|
638 |
if (f == NULL) { |
639 |
return -errno;
|
640 |
} |
641 |
|
642 |
ret = qemu_config_parse(f, vm_config_groups, filename); |
643 |
fclose(f); |
644 |
|
645 |
if (ret == 0) { |
646 |
return 0; |
647 |
} else {
|
648 |
return -EINVAL;
|
649 |
} |
650 |
} |