root / qemu-config.c @ 23d15e86
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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 "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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.help = "index 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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.help = "enable/disable snapshot mode",
|
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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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"directsync, 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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.help = "disk serial number",
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},{ |
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.name = "rerror",
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.type = QEMU_OPT_STRING, |
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.help = "read error action",
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},{ |
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.name = "werror",
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.type = QEMU_OPT_STRING, |
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.help = "write error action",
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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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.help = "open drive file as read-only",
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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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.name = "name",
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "debug",
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.type = QEMU_OPT_NUMBER, |
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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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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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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 = "events",
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.type = QEMU_OPT_STRING, |
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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 of list */ }
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}, |
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}; |
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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), |
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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 */ |
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.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 */ |
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.type = QEMU_OPT_STRING, |
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},{ |
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.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ |
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.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, |
365 |
}, |
366 |
{ /* end of list */ }
|
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}, |
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}; |
369 |
|
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QemuOptsList qemu_spice_opts = { |
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.name = "spice",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head), |
373 |
.desc = { |
374 |
{ |
375 |
.name = "port",
|
376 |
.type = QEMU_OPT_NUMBER, |
377 |
},{ |
378 |
.name = "tls-port",
|
379 |
.type = QEMU_OPT_NUMBER, |
380 |
},{ |
381 |
.name = "addr",
|
382 |
.type = QEMU_OPT_STRING, |
383 |
},{ |
384 |
.name = "ipv4",
|
385 |
.type = QEMU_OPT_BOOL, |
386 |
},{ |
387 |
.name = "ipv6",
|
388 |
.type = QEMU_OPT_BOOL, |
389 |
},{ |
390 |
.name = "password",
|
391 |
.type = QEMU_OPT_STRING, |
392 |
},{ |
393 |
.name = "disable-ticketing",
|
394 |
.type = QEMU_OPT_BOOL, |
395 |
},{ |
396 |
.name = "disable-copy-paste",
|
397 |
.type = QEMU_OPT_BOOL, |
398 |
},{ |
399 |
.name = "sasl",
|
400 |
.type = QEMU_OPT_BOOL, |
401 |
},{ |
402 |
.name = "x509-dir",
|
403 |
.type = QEMU_OPT_STRING, |
404 |
},{ |
405 |
.name = "x509-key-file",
|
406 |
.type = QEMU_OPT_STRING, |
407 |
},{ |
408 |
.name = "x509-key-password",
|
409 |
.type = QEMU_OPT_STRING, |
410 |
},{ |
411 |
.name = "x509-cert-file",
|
412 |
.type = QEMU_OPT_STRING, |
413 |
},{ |
414 |
.name = "x509-cacert-file",
|
415 |
.type = QEMU_OPT_STRING, |
416 |
},{ |
417 |
.name = "x509-dh-key-file",
|
418 |
.type = QEMU_OPT_STRING, |
419 |
},{ |
420 |
.name = "tls-ciphers",
|
421 |
.type = QEMU_OPT_STRING, |
422 |
},{ |
423 |
.name = "tls-channel",
|
424 |
.type = QEMU_OPT_STRING, |
425 |
},{ |
426 |
.name = "plaintext-channel",
|
427 |
.type = QEMU_OPT_STRING, |
428 |
},{ |
429 |
.name = "image-compression",
|
430 |
.type = QEMU_OPT_STRING, |
431 |
},{ |
432 |
.name = "jpeg-wan-compression",
|
433 |
.type = QEMU_OPT_STRING, |
434 |
},{ |
435 |
.name = "zlib-glz-wan-compression",
|
436 |
.type = QEMU_OPT_STRING, |
437 |
},{ |
438 |
.name = "streaming-video",
|
439 |
.type = QEMU_OPT_STRING, |
440 |
},{ |
441 |
.name = "agent-mouse",
|
442 |
.type = QEMU_OPT_BOOL, |
443 |
},{ |
444 |
.name = "playback-compression",
|
445 |
.type = QEMU_OPT_BOOL, |
446 |
}, |
447 |
{ /* end of list */ }
|
448 |
}, |
449 |
}; |
450 |
|
451 |
QemuOptsList qemu_option_rom_opts = { |
452 |
.name = "option-rom",
|
453 |
.implied_opt_name = "romfile",
|
454 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), |
455 |
.desc = { |
456 |
{ |
457 |
.name = "bootindex",
|
458 |
.type = QEMU_OPT_NUMBER, |
459 |
}, { |
460 |
.name = "romfile",
|
461 |
.type = QEMU_OPT_STRING, |
462 |
}, |
463 |
{ /* end of list */ }
|
464 |
}, |
465 |
}; |
466 |
|
467 |
static QemuOptsList qemu_machine_opts = {
|
468 |
.name = "machine",
|
469 |
.implied_opt_name = "type",
|
470 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_machine_opts.head), |
471 |
.desc = { |
472 |
{ |
473 |
.name = "type",
|
474 |
.type = QEMU_OPT_STRING, |
475 |
.help = "emulated machine"
|
476 |
}, { |
477 |
.name = "accel",
|
478 |
.type = QEMU_OPT_STRING, |
479 |
.help = "accelerator list",
|
480 |
}, |
481 |
{ /* End of list */ }
|
482 |
}, |
483 |
}; |
484 |
|
485 |
QemuOptsList qemu_boot_opts = { |
486 |
.name = "boot-opts",
|
487 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_boot_opts.head), |
488 |
.desc = { |
489 |
/* the three names below are not used now */
|
490 |
{ |
491 |
.name = "order",
|
492 |
.type = QEMU_OPT_STRING, |
493 |
}, { |
494 |
.name = "once",
|
495 |
.type = QEMU_OPT_STRING, |
496 |
}, { |
497 |
.name = "menu",
|
498 |
.type = QEMU_OPT_STRING, |
499 |
/* following are really used */
|
500 |
}, { |
501 |
.name = "splash",
|
502 |
.type = QEMU_OPT_STRING, |
503 |
}, { |
504 |
.name = "splash-time",
|
505 |
.type = QEMU_OPT_STRING, |
506 |
}, |
507 |
{ /*End of list */ }
|
508 |
}, |
509 |
}; |
510 |
|
511 |
static QemuOptsList *vm_config_groups[32] = { |
512 |
&qemu_drive_opts, |
513 |
&qemu_chardev_opts, |
514 |
&qemu_device_opts, |
515 |
&qemu_netdev_opts, |
516 |
&qemu_net_opts, |
517 |
&qemu_rtc_opts, |
518 |
&qemu_global_opts, |
519 |
&qemu_mon_opts, |
520 |
&qemu_cpudef_opts, |
521 |
&qemu_trace_opts, |
522 |
&qemu_option_rom_opts, |
523 |
&qemu_machine_opts, |
524 |
&qemu_boot_opts, |
525 |
NULL,
|
526 |
}; |
527 |
|
528 |
static QemuOptsList *find_list(QemuOptsList **lists, const char *group) |
529 |
{ |
530 |
int i;
|
531 |
|
532 |
for (i = 0; lists[i] != NULL; i++) { |
533 |
if (strcmp(lists[i]->name, group) == 0) |
534 |
break;
|
535 |
} |
536 |
if (lists[i] == NULL) { |
537 |
error_report("there is no option group \"%s\"", group);
|
538 |
} |
539 |
return lists[i];
|
540 |
} |
541 |
|
542 |
QemuOptsList *qemu_find_opts(const char *group) |
543 |
{ |
544 |
return find_list(vm_config_groups, group);
|
545 |
} |
546 |
|
547 |
void qemu_add_opts(QemuOptsList *list)
|
548 |
{ |
549 |
int entries, i;
|
550 |
|
551 |
entries = ARRAY_SIZE(vm_config_groups); |
552 |
entries--; /* keep list NULL terminated */
|
553 |
for (i = 0; i < entries; i++) { |
554 |
if (vm_config_groups[i] == NULL) { |
555 |
vm_config_groups[i] = list; |
556 |
return;
|
557 |
} |
558 |
} |
559 |
fprintf(stderr, "ran out of space in vm_config_groups");
|
560 |
abort(); |
561 |
} |
562 |
|
563 |
int qemu_set_option(const char *str) |
564 |
{ |
565 |
char group[64], id[64], arg[64]; |
566 |
QemuOptsList *list; |
567 |
QemuOpts *opts; |
568 |
int rc, offset;
|
569 |
|
570 |
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
571 |
if (rc < 3 || str[offset] != '=') { |
572 |
error_report("can't parse: \"%s\"", str);
|
573 |
return -1; |
574 |
} |
575 |
|
576 |
list = qemu_find_opts(group); |
577 |
if (list == NULL) { |
578 |
return -1; |
579 |
} |
580 |
|
581 |
opts = qemu_opts_find(list, id); |
582 |
if (!opts) {
|
583 |
error_report("there is no %s \"%s\" defined",
|
584 |
list->name, id); |
585 |
return -1; |
586 |
} |
587 |
|
588 |
if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
589 |
return -1; |
590 |
} |
591 |
return 0; |
592 |
} |
593 |
|
594 |
int qemu_global_option(const char *str) |
595 |
{ |
596 |
char driver[64], property[64]; |
597 |
QemuOpts *opts; |
598 |
int rc, offset;
|
599 |
|
600 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
601 |
if (rc < 2 || str[offset] != '=') { |
602 |
error_report("can't parse: \"%s\"", str);
|
603 |
return -1; |
604 |
} |
605 |
|
606 |
opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
607 |
qemu_opt_set(opts, "driver", driver);
|
608 |
qemu_opt_set(opts, "property", property);
|
609 |
qemu_opt_set(opts, "value", str+offset+1); |
610 |
return 0; |
611 |
} |
612 |
|
613 |
struct ConfigWriteData {
|
614 |
QemuOptsList *list; |
615 |
FILE *fp; |
616 |
}; |
617 |
|
618 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
619 |
{ |
620 |
struct ConfigWriteData *data = opaque;
|
621 |
|
622 |
fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
623 |
return 0; |
624 |
} |
625 |
|
626 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
627 |
{ |
628 |
struct ConfigWriteData *data = opaque;
|
629 |
const char *id = qemu_opts_id(opts); |
630 |
|
631 |
if (id) {
|
632 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
633 |
} else {
|
634 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
635 |
} |
636 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
637 |
fprintf(data->fp, "\n");
|
638 |
return 0; |
639 |
} |
640 |
|
641 |
void qemu_config_write(FILE *fp)
|
642 |
{ |
643 |
struct ConfigWriteData data = { .fp = fp };
|
644 |
QemuOptsList **lists = vm_config_groups; |
645 |
int i;
|
646 |
|
647 |
fprintf(fp, "# qemu config file\n\n");
|
648 |
for (i = 0; lists[i] != NULL; i++) { |
649 |
data.list = lists[i]; |
650 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
651 |
} |
652 |
} |
653 |
|
654 |
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) |
655 |
{ |
656 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
657 |
Location loc; |
658 |
QemuOptsList *list = NULL;
|
659 |
QemuOpts *opts = NULL;
|
660 |
int res = -1, lno = 0; |
661 |
|
662 |
loc_push_none(&loc); |
663 |
while (fgets(line, sizeof(line), fp) != NULL) { |
664 |
loc_set_file(fname, ++lno); |
665 |
if (line[0] == '\n') { |
666 |
/* skip empty lines */
|
667 |
continue;
|
668 |
} |
669 |
if (line[0] == '#') { |
670 |
/* comment */
|
671 |
continue;
|
672 |
} |
673 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
674 |
/* group with id */
|
675 |
list = find_list(lists, group); |
676 |
if (list == NULL) |
677 |
goto out;
|
678 |
opts = qemu_opts_create(list, id, 1);
|
679 |
continue;
|
680 |
} |
681 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
682 |
/* group without id */
|
683 |
list = find_list(lists, group); |
684 |
if (list == NULL) |
685 |
goto out;
|
686 |
opts = qemu_opts_create(list, NULL, 0); |
687 |
continue;
|
688 |
} |
689 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
690 |
/* arg = value */
|
691 |
if (opts == NULL) { |
692 |
error_report("no group defined");
|
693 |
goto out;
|
694 |
} |
695 |
if (qemu_opt_set(opts, arg, value) != 0) { |
696 |
goto out;
|
697 |
} |
698 |
continue;
|
699 |
} |
700 |
error_report("parse error");
|
701 |
goto out;
|
702 |
} |
703 |
if (ferror(fp)) {
|
704 |
error_report("error reading file");
|
705 |
goto out;
|
706 |
} |
707 |
res = 0;
|
708 |
out:
|
709 |
loc_pop(&loc); |
710 |
return res;
|
711 |
} |
712 |
|
713 |
int qemu_read_config_file(const char *filename) |
714 |
{ |
715 |
FILE *f = fopen(filename, "r");
|
716 |
int ret;
|
717 |
|
718 |
if (f == NULL) { |
719 |
return -errno;
|
720 |
} |
721 |
|
722 |
ret = qemu_config_parse(f, vm_config_groups, filename); |
723 |
fclose(f); |
724 |
|
725 |
if (ret == 0) { |
726 |
return 0; |
727 |
} else {
|
728 |
return -EINVAL;
|
729 |
} |
730 |
} |