root / qemu-config.c @ cbcc6336
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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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.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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|
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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, |
267 |
},{ |
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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, |
273 |
}, |
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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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}; |
299 |
|
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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, |
309 |
}, |
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{ /* end if list */ }
|
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}, |
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}; |
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#endif
|
314 |
|
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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), |
318 |
.desc = { |
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{ |
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.name = "name",
|
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.type = QEMU_OPT_STRING, |
322 |
},{ |
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.name = "level",
|
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.type = QEMU_OPT_NUMBER, |
325 |
},{ |
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.name = "vendor",
|
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.type = QEMU_OPT_STRING, |
328 |
},{ |
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.name = "family",
|
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.type = QEMU_OPT_NUMBER, |
331 |
},{ |
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.name = "model",
|
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.type = QEMU_OPT_NUMBER, |
334 |
},{ |
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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 */ |
339 |
.type = QEMU_OPT_STRING, |
340 |
},{ |
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.name = "feature_ecx", /* cpuid 0000_0001.ecx */ |
342 |
.type = QEMU_OPT_STRING, |
343 |
},{ |
344 |
.name = "extfeature_edx", /* cpuid 8000_0001.edx */ |
345 |
.type = QEMU_OPT_STRING, |
346 |
},{ |
347 |
.name = "extfeature_ecx", /* cpuid 8000_0001.ecx */ |
348 |
.type = QEMU_OPT_STRING, |
349 |
},{ |
350 |
.name = "xlevel",
|
351 |
.type = QEMU_OPT_NUMBER, |
352 |
},{ |
353 |
.name = "model_id",
|
354 |
.type = QEMU_OPT_STRING, |
355 |
},{ |
356 |
.name = "vendor_override",
|
357 |
.type = QEMU_OPT_NUMBER, |
358 |
}, |
359 |
{ /* end of list */ }
|
360 |
}, |
361 |
}; |
362 |
|
363 |
QemuOptsList qemu_spice_opts = { |
364 |
.name = "spice",
|
365 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_spice_opts.head), |
366 |
.desc = { |
367 |
{ |
368 |
.name = "port",
|
369 |
.type = QEMU_OPT_NUMBER, |
370 |
},{ |
371 |
.name = "tls-port",
|
372 |
.type = QEMU_OPT_NUMBER, |
373 |
},{ |
374 |
.name = "addr",
|
375 |
.type = QEMU_OPT_STRING, |
376 |
},{ |
377 |
.name = "ipv4",
|
378 |
.type = QEMU_OPT_BOOL, |
379 |
},{ |
380 |
.name = "ipv6",
|
381 |
.type = QEMU_OPT_BOOL, |
382 |
},{ |
383 |
.name = "password",
|
384 |
.type = QEMU_OPT_STRING, |
385 |
},{ |
386 |
.name = "disable-ticketing",
|
387 |
.type = QEMU_OPT_BOOL, |
388 |
},{ |
389 |
.name = "x509-dir",
|
390 |
.type = QEMU_OPT_STRING, |
391 |
},{ |
392 |
.name = "x509-key-file",
|
393 |
.type = QEMU_OPT_STRING, |
394 |
},{ |
395 |
.name = "x509-key-password",
|
396 |
.type = QEMU_OPT_STRING, |
397 |
},{ |
398 |
.name = "x509-cert-file",
|
399 |
.type = QEMU_OPT_STRING, |
400 |
},{ |
401 |
.name = "x509-cacert-file",
|
402 |
.type = QEMU_OPT_STRING, |
403 |
},{ |
404 |
.name = "x509-dh-key-file",
|
405 |
.type = QEMU_OPT_STRING, |
406 |
},{ |
407 |
.name = "tls-ciphers",
|
408 |
.type = QEMU_OPT_STRING, |
409 |
},{ |
410 |
.name = "tls-channel",
|
411 |
.type = QEMU_OPT_STRING, |
412 |
},{ |
413 |
.name = "plaintext-channel",
|
414 |
.type = QEMU_OPT_STRING, |
415 |
},{ |
416 |
.name = "image-compression",
|
417 |
.type = QEMU_OPT_STRING, |
418 |
},{ |
419 |
.name = "jpeg-wan-compression",
|
420 |
.type = QEMU_OPT_STRING, |
421 |
},{ |
422 |
.name = "zlib-glz-wan-compression",
|
423 |
.type = QEMU_OPT_STRING, |
424 |
},{ |
425 |
.name = "streaming-video",
|
426 |
.type = QEMU_OPT_STRING, |
427 |
},{ |
428 |
.name = "agent-mouse",
|
429 |
.type = QEMU_OPT_BOOL, |
430 |
},{ |
431 |
.name = "playback-compression",
|
432 |
.type = QEMU_OPT_BOOL, |
433 |
}, |
434 |
{ /* end if list */ }
|
435 |
}, |
436 |
}; |
437 |
|
438 |
QemuOptsList qemu_option_rom_opts = { |
439 |
.name = "option-rom",
|
440 |
.implied_opt_name = "romfile",
|
441 |
.head = QTAILQ_HEAD_INITIALIZER(qemu_option_rom_opts.head), |
442 |
.desc = { |
443 |
{ |
444 |
.name = "bootindex",
|
445 |
.type = QEMU_OPT_NUMBER, |
446 |
}, { |
447 |
.name = "romfile",
|
448 |
.type = QEMU_OPT_STRING, |
449 |
}, |
450 |
{ /* end if list */ }
|
451 |
}, |
452 |
}; |
453 |
|
454 |
static QemuOptsList *vm_config_groups[32] = { |
455 |
&qemu_drive_opts, |
456 |
&qemu_chardev_opts, |
457 |
&qemu_device_opts, |
458 |
&qemu_netdev_opts, |
459 |
&qemu_net_opts, |
460 |
&qemu_rtc_opts, |
461 |
&qemu_global_opts, |
462 |
&qemu_mon_opts, |
463 |
&qemu_cpudef_opts, |
464 |
#ifdef CONFIG_SIMPLE_TRACE
|
465 |
&qemu_trace_opts, |
466 |
#endif
|
467 |
&qemu_option_rom_opts, |
468 |
NULL,
|
469 |
}; |
470 |
|
471 |
static QemuOptsList *find_list(QemuOptsList **lists, const char *group) |
472 |
{ |
473 |
int i;
|
474 |
|
475 |
for (i = 0; lists[i] != NULL; i++) { |
476 |
if (strcmp(lists[i]->name, group) == 0) |
477 |
break;
|
478 |
} |
479 |
if (lists[i] == NULL) { |
480 |
error_report("there is no option group \"%s\"", group);
|
481 |
} |
482 |
return lists[i];
|
483 |
} |
484 |
|
485 |
QemuOptsList *qemu_find_opts(const char *group) |
486 |
{ |
487 |
return find_list(vm_config_groups, group);
|
488 |
} |
489 |
|
490 |
void qemu_add_opts(QemuOptsList *list)
|
491 |
{ |
492 |
int entries, i;
|
493 |
|
494 |
entries = ARRAY_SIZE(vm_config_groups); |
495 |
entries--; /* keep list NULL terminated */
|
496 |
for (i = 0; i < entries; i++) { |
497 |
if (vm_config_groups[i] == NULL) { |
498 |
vm_config_groups[i] = list; |
499 |
return;
|
500 |
} |
501 |
} |
502 |
fprintf(stderr, "ran out of space in vm_config_groups");
|
503 |
abort(); |
504 |
} |
505 |
|
506 |
int qemu_set_option(const char *str) |
507 |
{ |
508 |
char group[64], id[64], arg[64]; |
509 |
QemuOptsList *list; |
510 |
QemuOpts *opts; |
511 |
int rc, offset;
|
512 |
|
513 |
rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
514 |
if (rc < 3 || str[offset] != '=') { |
515 |
error_report("can't parse: \"%s\"", str);
|
516 |
return -1; |
517 |
} |
518 |
|
519 |
list = qemu_find_opts(group); |
520 |
if (list == NULL) { |
521 |
return -1; |
522 |
} |
523 |
|
524 |
opts = qemu_opts_find(list, id); |
525 |
if (!opts) {
|
526 |
error_report("there is no %s \"%s\" defined",
|
527 |
list->name, id); |
528 |
return -1; |
529 |
} |
530 |
|
531 |
if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
532 |
return -1; |
533 |
} |
534 |
return 0; |
535 |
} |
536 |
|
537 |
int qemu_global_option(const char *str) |
538 |
{ |
539 |
char driver[64], property[64]; |
540 |
QemuOpts *opts; |
541 |
int rc, offset;
|
542 |
|
543 |
rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
544 |
if (rc < 2 || str[offset] != '=') { |
545 |
error_report("can't parse: \"%s\"", str);
|
546 |
return -1; |
547 |
} |
548 |
|
549 |
opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
550 |
qemu_opt_set(opts, "driver", driver);
|
551 |
qemu_opt_set(opts, "property", property);
|
552 |
qemu_opt_set(opts, "value", str+offset+1); |
553 |
return 0; |
554 |
} |
555 |
|
556 |
struct ConfigWriteData {
|
557 |
QemuOptsList *list; |
558 |
FILE *fp; |
559 |
}; |
560 |
|
561 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
562 |
{ |
563 |
struct ConfigWriteData *data = opaque;
|
564 |
|
565 |
fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
566 |
return 0; |
567 |
} |
568 |
|
569 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
570 |
{ |
571 |
struct ConfigWriteData *data = opaque;
|
572 |
const char *id = qemu_opts_id(opts); |
573 |
|
574 |
if (id) {
|
575 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
576 |
} else {
|
577 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
578 |
} |
579 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
580 |
fprintf(data->fp, "\n");
|
581 |
return 0; |
582 |
} |
583 |
|
584 |
void qemu_config_write(FILE *fp)
|
585 |
{ |
586 |
struct ConfigWriteData data = { .fp = fp };
|
587 |
QemuOptsList **lists = vm_config_groups; |
588 |
int i;
|
589 |
|
590 |
fprintf(fp, "# qemu config file\n\n");
|
591 |
for (i = 0; lists[i] != NULL; i++) { |
592 |
data.list = lists[i]; |
593 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
594 |
} |
595 |
} |
596 |
|
597 |
int qemu_config_parse(FILE *fp, QemuOptsList **lists, const char *fname) |
598 |
{ |
599 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
600 |
Location loc; |
601 |
QemuOptsList *list = NULL;
|
602 |
QemuOpts *opts = NULL;
|
603 |
int res = -1, lno = 0; |
604 |
|
605 |
loc_push_none(&loc); |
606 |
while (fgets(line, sizeof(line), fp) != NULL) { |
607 |
loc_set_file(fname, ++lno); |
608 |
if (line[0] == '\n') { |
609 |
/* skip empty lines */
|
610 |
continue;
|
611 |
} |
612 |
if (line[0] == '#') { |
613 |
/* comment */
|
614 |
continue;
|
615 |
} |
616 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
617 |
/* group with id */
|
618 |
list = find_list(lists, group); |
619 |
if (list == NULL) |
620 |
goto out;
|
621 |
opts = qemu_opts_create(list, id, 1);
|
622 |
continue;
|
623 |
} |
624 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
625 |
/* group without id */
|
626 |
list = find_list(lists, group); |
627 |
if (list == NULL) |
628 |
goto out;
|
629 |
opts = qemu_opts_create(list, NULL, 0); |
630 |
continue;
|
631 |
} |
632 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
633 |
/* arg = value */
|
634 |
if (opts == NULL) { |
635 |
error_report("no group defined");
|
636 |
goto out;
|
637 |
} |
638 |
if (qemu_opt_set(opts, arg, value) != 0) { |
639 |
goto out;
|
640 |
} |
641 |
continue;
|
642 |
} |
643 |
error_report("parse error");
|
644 |
goto out;
|
645 |
} |
646 |
if (ferror(fp)) {
|
647 |
error_report("error reading file");
|
648 |
goto out;
|
649 |
} |
650 |
res = 0;
|
651 |
out:
|
652 |
loc_pop(&loc); |
653 |
return res;
|
654 |
} |
655 |
|
656 |
int qemu_read_config_file(const char *filename) |
657 |
{ |
658 |
FILE *f = fopen(filename, "r");
|
659 |
int ret;
|
660 |
|
661 |
if (f == NULL) { |
662 |
return -errno;
|
663 |
} |
664 |
|
665 |
ret = qemu_config_parse(f, vm_config_groups, filename); |
666 |
fclose(f); |
667 |
|
668 |
if (ret == 0) { |
669 |
return 0; |
670 |
} else {
|
671 |
return -EINVAL;
|
672 |
} |
673 |
} |