root / qemu-config.c @ 1ecda02b
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| 1 |
#include "qemu-common.h" |
|---|---|
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#include "qemu-error.h" |
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#include "qemu-option.h" |
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#include "qemu-config.h" |
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#include "sysemu.h" |
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#include "hw/qdev.h" |
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|
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QemuOptsList qemu_drive_opts = {
|
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.name = "drive",
|
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.head = QTAILQ_HEAD_INITIALIZER(qemu_drive_opts.head), |
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.desc = {
|
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{
|
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.name = "bus",
|
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.type = QEMU_OPT_NUMBER, |
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.help = "bus number",
|
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},{
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.name = "unit",
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.type = QEMU_OPT_NUMBER, |
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.help = "unit number (i.e. lun for scsi)",
|
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},{
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.name = "if",
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.type = QEMU_OPT_STRING, |
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.help = "interface (ide, scsi, sd, mtd, floppy, pflash, virtio)",
|
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},{
|
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.name = "index",
|
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "cyls",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of cylinders (ide disk geometry)",
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},{
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.name = "heads",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of heads (ide disk geometry)",
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},{
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.name = "secs",
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.type = QEMU_OPT_NUMBER, |
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.help = "number of sectors (ide disk geometry)",
|
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},{
|
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.name = "trans",
|
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.type = QEMU_OPT_STRING, |
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.help = "chs translation (auto, lba. none)",
|
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},{
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.name = "media",
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.type = QEMU_OPT_STRING, |
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.help = "media type (disk, cdrom)",
|
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},{
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.name = "snapshot",
|
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "file",
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.type = QEMU_OPT_STRING, |
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.help = "disk image",
|
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},{
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.name = "cache",
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.type = QEMU_OPT_STRING, |
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.help = "host cache usage (none, writeback, writethrough)",
|
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},{
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.name = "aio",
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.type = QEMU_OPT_STRING, |
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.help = "host AIO implementation (threads, native)",
|
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},{
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.name = "format",
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.type = QEMU_OPT_STRING, |
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.help = "disk format (raw, qcow2, ...)",
|
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},{
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.name = "serial",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "rerror",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "werror",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "addr",
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.type = QEMU_OPT_STRING, |
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.help = "pci address (virtio only)",
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},{
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.name = "readonly",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
|
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}, |
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}; |
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|
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QemuOptsList qemu_chardev_opts = {
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.name = "chardev",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_chardev_opts.head), |
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.desc = {
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{
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.name = "backend",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "path",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "host",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "port",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "localaddr",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "localport",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "to",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "ipv4",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "ipv6",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "wait",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "server",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "delay",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "telnet",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "width",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "height",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "cols",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "rows",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "mux",
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.type = QEMU_OPT_BOOL, |
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},{
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.name = "signal",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
|
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}, |
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}; |
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|
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QemuOptsList qemu_device_opts = {
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.name = "device",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_device_opts.head), |
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.desc = {
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/*
|
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* no elements => accept any
|
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* sanity checking will happen later
|
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* when setting device properties
|
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*/
|
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{ /* end if list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_netdev_opts = {
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.name = "netdev",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_netdev_opts.head), |
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.desc = {
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/*
|
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* no elements => accept any params
|
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* validation will happen later
|
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*/
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{ /* end of list */ }
|
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}, |
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}; |
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|
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QemuOptsList qemu_net_opts = {
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.name = "net",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_net_opts.head), |
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.desc = {
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/*
|
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* no elements => accept any params
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* validation will happen later
|
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*/
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{ /* end of list */ }
|
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}, |
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}; |
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|
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QemuOptsList qemu_rtc_opts = {
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.name = "rtc",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_rtc_opts.head), |
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.desc = {
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{
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.name = "base",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "clock",
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.type = QEMU_OPT_STRING, |
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#ifdef TARGET_I386
|
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},{
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.name = "driftfix",
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.type = QEMU_OPT_STRING, |
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#endif
|
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}, |
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{ /* end if list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_global_opts = {
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.name = "global",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_global_opts.head), |
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.desc = {
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{
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.name = "driver",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "property",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "value",
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.type = QEMU_OPT_STRING, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_mon_opts = {
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.name = "mon",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_mon_opts.head), |
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.desc = {
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{
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.name = "mode",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "chardev",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "default",
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.type = QEMU_OPT_BOOL, |
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}, |
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{ /* end if list */ }
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}, |
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}; |
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|
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QemuOptsList qemu_cpudef_opts = {
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.name = "cpudef",
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.head = QTAILQ_HEAD_INITIALIZER(qemu_cpudef_opts.head), |
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.desc = {
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{
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.name = "name",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "level",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "vendor",
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.type = QEMU_OPT_STRING, |
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},{
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.name = "family",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "model",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "stepping",
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.type = QEMU_OPT_NUMBER, |
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},{
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.name = "feature_edx", /* cpuid 0000_0001.edx */ |
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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, |
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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 *lists[] = {
|
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&qemu_drive_opts, |
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&qemu_chardev_opts, |
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&qemu_device_opts, |
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&qemu_netdev_opts, |
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&qemu_net_opts, |
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&qemu_rtc_opts, |
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&qemu_global_opts, |
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&qemu_mon_opts, |
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&qemu_cpudef_opts, |
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NULL,
|
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}; |
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|
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static QemuOptsList *find_list(const char *group) |
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{
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int i;
|
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|
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for (i = 0; lists[i] != NULL; i++) { |
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if (strcmp(lists[i]->name, group) == 0) |
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break;
|
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} |
| 315 |
if (lists[i] == NULL) { |
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error_report("there is no option group \"%s\"", group);
|
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} |
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return lists[i];
|
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} |
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|
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int qemu_set_option(const char *str) |
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{
|
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char group[64], id[64], arg[64]; |
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QemuOptsList *list; |
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QemuOpts *opts; |
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int rc, offset;
|
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|
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rc = sscanf(str, "%63[^.].%63[^.].%63[^=]%n", group, id, arg, &offset);
|
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if (rc < 3 || str[offset] != '=') { |
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error_report("can't parse: \"%s\"", str);
|
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return -1; |
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} |
| 333 |
|
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list = find_list(group); |
| 335 |
if (list == NULL) { |
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return -1; |
| 337 |
} |
| 338 |
|
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opts = qemu_opts_find(list, id); |
| 340 |
if (!opts) {
|
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error_report("there is no %s \"%s\" defined",
|
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list->name, id); |
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return -1; |
| 344 |
} |
| 345 |
|
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if (qemu_opt_set(opts, arg, str+offset+1) == -1) { |
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return -1; |
| 348 |
} |
| 349 |
return 0; |
| 350 |
} |
| 351 |
|
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int qemu_global_option(const char *str) |
| 353 |
{
|
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char driver[64], property[64]; |
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QemuOpts *opts; |
| 356 |
int rc, offset;
|
| 357 |
|
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rc = sscanf(str, "%63[^.].%63[^=]%n", driver, property, &offset);
|
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if (rc < 2 || str[offset] != '=') { |
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error_report("can't parse: \"%s\"", str);
|
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return -1; |
| 362 |
} |
| 363 |
|
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opts = qemu_opts_create(&qemu_global_opts, NULL, 0); |
| 365 |
qemu_opt_set(opts, "driver", driver);
|
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qemu_opt_set(opts, "property", property);
|
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qemu_opt_set(opts, "value", str+offset+1); |
| 368 |
return 0; |
| 369 |
} |
| 370 |
|
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static int qemu_add_one_global(QemuOpts *opts, void *opaque) |
| 372 |
{
|
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GlobalProperty *g; |
| 374 |
|
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g = qemu_mallocz(sizeof(*g));
|
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g->driver = qemu_opt_get(opts, "driver");
|
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g->property = qemu_opt_get(opts, "property");
|
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g->value = qemu_opt_get(opts, "value");
|
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qdev_prop_register_global(g); |
| 380 |
return 0; |
| 381 |
} |
| 382 |
|
| 383 |
void qemu_add_globals(void) |
| 384 |
{
|
| 385 |
qemu_opts_foreach(&qemu_global_opts, qemu_add_one_global, NULL, 0); |
| 386 |
} |
| 387 |
|
| 388 |
struct ConfigWriteData {
|
| 389 |
QemuOptsList *list; |
| 390 |
FILE *fp; |
| 391 |
}; |
| 392 |
|
| 393 |
static int config_write_opt(const char *name, const char *value, void *opaque) |
| 394 |
{
|
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struct ConfigWriteData *data = opaque;
|
| 396 |
|
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fprintf(data->fp, " %s = \"%s\"\n", name, value);
|
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return 0; |
| 399 |
} |
| 400 |
|
| 401 |
static int config_write_opts(QemuOpts *opts, void *opaque) |
| 402 |
{
|
| 403 |
struct ConfigWriteData *data = opaque;
|
| 404 |
const char *id = qemu_opts_id(opts); |
| 405 |
|
| 406 |
if (id) {
|
| 407 |
fprintf(data->fp, "[%s \"%s\"]\n", data->list->name, id);
|
| 408 |
} else {
|
| 409 |
fprintf(data->fp, "[%s]\n", data->list->name);
|
| 410 |
} |
| 411 |
qemu_opt_foreach(opts, config_write_opt, data, 0);
|
| 412 |
fprintf(data->fp, "\n");
|
| 413 |
return 0; |
| 414 |
} |
| 415 |
|
| 416 |
void qemu_config_write(FILE *fp)
|
| 417 |
{
|
| 418 |
struct ConfigWriteData data = { .fp = fp };
|
| 419 |
int i;
|
| 420 |
|
| 421 |
fprintf(fp, "# qemu config file\n\n");
|
| 422 |
for (i = 0; lists[i] != NULL; i++) { |
| 423 |
data.list = lists[i]; |
| 424 |
qemu_opts_foreach(data.list, config_write_opts, &data, 0);
|
| 425 |
} |
| 426 |
} |
| 427 |
|
| 428 |
int qemu_config_parse(FILE *fp)
|
| 429 |
{
|
| 430 |
char line[1024], group[64], id[64], arg[64], value[1024]; |
| 431 |
QemuOptsList *list = NULL;
|
| 432 |
QemuOpts *opts = NULL;
|
| 433 |
|
| 434 |
while (fgets(line, sizeof(line), fp) != NULL) { |
| 435 |
if (line[0] == '\n') { |
| 436 |
/* skip empty lines */
|
| 437 |
continue;
|
| 438 |
} |
| 439 |
if (line[0] == '#') { |
| 440 |
/* comment */
|
| 441 |
continue;
|
| 442 |
} |
| 443 |
if (sscanf(line, "[%63s \"%63[^\"]\"]", group, id) == 2) { |
| 444 |
/* group with id */
|
| 445 |
list = find_list(group); |
| 446 |
if (list == NULL) |
| 447 |
return -1; |
| 448 |
opts = qemu_opts_create(list, id, 1);
|
| 449 |
continue;
|
| 450 |
} |
| 451 |
if (sscanf(line, "[%63[^]]]", group) == 1) { |
| 452 |
/* group without id */
|
| 453 |
list = find_list(group); |
| 454 |
if (list == NULL) |
| 455 |
return -1; |
| 456 |
opts = qemu_opts_create(list, NULL, 0); |
| 457 |
continue;
|
| 458 |
} |
| 459 |
if (sscanf(line, " %63s = \"%1023[^\"]\"", arg, value) == 2) { |
| 460 |
/* arg = value */
|
| 461 |
if (opts == NULL) { |
| 462 |
fprintf(stderr, "no group defined\n");
|
| 463 |
return -1; |
| 464 |
} |
| 465 |
if (qemu_opt_set(opts, arg, value) != 0) { |
| 466 |
fprintf(stderr, "failed to set \"%s\" for %s\n",
|
| 467 |
arg, group); |
| 468 |
return -1; |
| 469 |
} |
| 470 |
continue;
|
| 471 |
} |
| 472 |
fprintf(stderr, "parse error: %s\n", line);
|
| 473 |
return -1; |
| 474 |
} |
| 475 |
return 0; |
| 476 |
} |