[libvirt] [PATCH 19/34] Probe for -device and use -nodefaults
Daniel P. Berrange
berrange at redhat.com
Fri Jan 8 17:23:15 UTC 2010
Probe for the new -device flag and if available set the -nodefaults
flag, instead of using -net none, -serial none or -parallel none.
Other device types will be converted to use -device in later patches.
The -nodefaults flag will help avoid unwelcome surprises from future
QEMU releases
* src/qemu/qemu_conf.c: Probe for -device. Add -nodefaults flag.
Remove -net none, -serial none or -parallel none
* src/qemu/qemu_conf.h: Define QEMU_CMD_FLAG_DEVICE
* tests/qemuhelpdata/qemu-0.12.1: New data file for 0.12.1 QEMU
* tests/qemuhelptest.c: Test feature extraction from 0.12.1 QEMU
---
src/qemu/qemu_conf.c | 26 ++++-
src/qemu/qemu_conf.h | 1 +
tests/qemuhelpdata/qemu-0.12.1 | 203 ++++++++++++++++++++++++++++++++++++++++
tests/qemuhelptest.c | 42 ++++++++-
4 files changed, 264 insertions(+), 8 deletions(-)
create mode 100644 tests/qemuhelpdata/qemu-0.12.1
diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c
index 6548b4a..3718470 100644
--- a/src/qemu/qemu_conf.c
+++ b/src/qemu/qemu_conf.c
@@ -1115,6 +1115,8 @@ static unsigned int qemudComputeCmdFlags(const char *help,
flags |= QEMUD_CMD_FLAG_CHARDEV;
if (strstr(help, "-balloon"))
flags |= QEMUD_CMD_FLAG_BALLOON;
+ if (strstr(help, "-device"))
+ flags |= QEMUD_CMD_FLAG_DEVICE;
if (version >= 9000)
flags |= QEMUD_CMD_FLAG_VNC_COLON;
@@ -2308,6 +2310,9 @@ int qemudBuildCommandLine(virConnectPtr conn,
if (!def->graphics)
ADD_ARG_LIT("-nographic");
+ if (qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)
+ ADD_ARG_LIT("-nodefaults");
+
if (monitor_chr) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
@@ -2530,8 +2535,11 @@ int qemudBuildCommandLine(virConnectPtr conn,
}
if (!def->nnets) {
- ADD_ARG_LIT("-net");
- ADD_ARG_LIT("none");
+ /* If we have -device, then we set -nodefault already */
+ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
+ ADD_ARG_LIT("-net");
+ ADD_ARG_LIT("none");
+ }
} else {
for (i = 0 ; i < def->nnets ; i++) {
virDomainNetDefPtr net = def->nets[i];
@@ -2590,8 +2598,11 @@ int qemudBuildCommandLine(virConnectPtr conn,
}
if (!def->nserials) {
- ADD_ARG_LIT("-serial");
- ADD_ARG_LIT("none");
+ /* If we have -device, then we set -nodefault already */
+ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
+ ADD_ARG_LIT("-serial");
+ ADD_ARG_LIT("none");
+ }
} else {
for (i = 0 ; i < def->nserials ; i++) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
@@ -2637,8 +2648,11 @@ int qemudBuildCommandLine(virConnectPtr conn,
}
if (!def->nparallels) {
- ADD_ARG_LIT("-parallel");
- ADD_ARG_LIT("none");
+ /* If we have -device, then we set -nodefault already */
+ if (!(qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)) {
+ ADD_ARG_LIT("-parallel");
+ ADD_ARG_LIT("none");
+ }
} else {
for (i = 0 ; i < def->nparallels ; i++) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h
index 3dbe1c8..174d397 100644
--- a/src/qemu/qemu_conf.h
+++ b/src/qemu/qemu_conf.h
@@ -78,6 +78,7 @@ enum qemud_cmd_flags {
QEMUD_CMD_FLAG_ENABLE_KVM = (1 << 23), /* Is the -enable-kvm flag available to "enable KVM full virtualization support" */
QEMUD_CMD_FLAG_MONITOR_JSON = (1 << 24), /* JSON mode for monitor */
QEMUD_CMD_FLAG_BALLOON = (1 << 25), /* -balloon available */
+ QEMUD_CMD_FLAG_DEVICE = (1 << 26), /* Is the new -chardev arg available */
};
/* Main driver state */
diff --git a/tests/qemuhelpdata/qemu-0.12.1 b/tests/qemuhelpdata/qemu-0.12.1
new file mode 100644
index 0000000..748625b
--- /dev/null
+++ b/tests/qemuhelpdata/qemu-0.12.1
@@ -0,0 +1,203 @@
+QEMU PC emulator version 0.12.1, Copyright (c) 2003-2008 Fabrice Bellard
+usage: qemu [options] [disk_image]
+
+'disk_image' is a raw hard image image for IDE hard disk 0
+
+Standard options:
+-h or -help display this help and exit
+-version display version information and exit
+-M machine select emulated machine (-M ? for list)
+-cpu cpu select CPU (-cpu ? for list)
+-smp n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]
+ set the number of CPUs to 'n' [default=1]
+ maxcpus= maximum number of total cpus, including
+ offline CPUs for hotplug etc.
+ cores= number of CPU cores on one socket
+ threads= number of threads on one CPU core
+ sockets= number of discrete sockets in the system
+-numa node[,mem=size][,cpus=cpu[-cpu]][,nodeid=node]
+-fda/-fdb file use 'file' as floppy disk 0/1 image
+-hda/-hdb file use 'file' as IDE hard disk 0/1 image
+-hdc/-hdd file use 'file' as IDE hard disk 2/3 image
+-cdrom file use 'file' as IDE cdrom image (cdrom is ide1 master)
+-drive [file=file][,if=type][,bus=n][,unit=m][,media=d][,index=i]
+ [,cyls=c,heads=h,secs=s[,trans=t]][,snapshot=on|off]
+ [,cache=writethrough|writeback|none][,format=f][,serial=s]
+ [,addr=A][,id=name][,aio=threads|native]
+ use 'file' as a drive image
+-set group.id.arg=value
+ set <arg> parameter for item <id> of type <group>
+ i.e. -set drive.$id.file=/path/to/image
+-global driver.property=value
+ set a global default for a driver property
+-mtdblock file use 'file' as on-board Flash memory image
+-sd file use 'file' as SecureDigital card image
+-pflash file use 'file' as a parallel flash image
+-boot [order=drives][,once=drives][,menu=on|off]
+ 'drives': floppy (a), hard disk (c), CD-ROM (d), network (n)
+-snapshot write to temporary files instead of disk image files
+-m megs set virtual RAM size to megs MB [default=128]
+-k language use keyboard layout (for example 'fr' for French)
+-audio-help print list of audio drivers and their options
+-soundhw c1,... enable audio support
+ and only specified sound cards (comma separated list)
+ use -soundhw ? to get the list of supported cards
+ use -soundhw all to enable all of them
+-usb enable the USB driver (will be the default soon)
+-usbdevice name add the host or guest USB device 'name'
+-device driver[,options] add device
+-name string1[,process=string2] set the name of the guest
+ string1 sets the window title and string2 the process name (on Linux)
+-uuid %08x-%04x-%04x-%04x-%012x
+ specify machine UUID
+
+Display options:
+-nographic disable graphical output and redirect serial I/Os to console
+-curses use a curses/ncurses interface instead of SDL
+-no-frame open SDL window without a frame and window decorations
+-alt-grab use Ctrl-Alt-Shift to grab mouse (instead of Ctrl-Alt)
+-ctrl-grab use Right-Ctrl to grab mouse (instead of Ctrl-Alt)
+-no-quit disable SDL window close capability
+-sdl enable SDL
+-portrait rotate graphical output 90 deg left (only PXA LCD)
+-vga [std|cirrus|vmware|xenfb|none]
+ select video card type
+-full-screen start in full screen
+-vnc display start a VNC server on display
+
+1 target only:
+-win2k-hack use it when installing Windows 2000 to avoid a disk full bug
+-no-fd-bootchk disable boot signature checking for floppy disks
+-no-acpi disable ACPI
+-no-hpet disable HPET
+-balloon none disable balloon device
+-balloon virtio[,addr=str]
+ enable virtio balloon device (default)
+-acpitable [sig=str][,rev=n][,oem_id=str][,oem_table_id=str][,oem_rev=n][,asl_compiler_id=str][,asl_compiler_rev=n][,data=file1[:file2]...]
+ ACPI table description
+-smbios file=binary
+ Load SMBIOS entry from binary file
+-smbios type=0[,vendor=str][,version=str][,date=str][,release=%d.%d]
+ Specify SMBIOS type 0 fields
+-smbios type=1[,manufacturer=str][,product=str][,version=str][,serial=str]
+ [,uuid=uuid][,sku=str][,family=str]
+ Specify SMBIOS type 1 fields
+
+Network options:
+-net nic[,vlan=n][,macaddr=mac][,model=type][,name=str][,addr=str][,vectors=v]
+ create a new Network Interface Card and connect it to VLAN 'n'
+-net user[,vlan=n][,name=str][,net=addr[/mask]][,host=addr][,restrict=y|n]
+ [,hostname=host][,dhcpstart=addr][,dns=addr][,tftp=dir][,bootfile=f]
+ [,hostfwd=rule][,guestfwd=rule][,smb=dir[,smbserver=addr]]
+ connect the user mode network stack to VLAN 'n', configure its
+ DHCP server and enabled optional services
+-net tap[,vlan=n][,name=str][,fd=h][,ifname=name][,script=file][,downscript=dfile][,sndbuf=nbytes][,vnet_hdr=on|off]
+ connect the host TAP network interface to VLAN 'n' and use the
+ network scripts 'file' (default=/etc/qemu-ifup)
+ and 'dfile' (default=/etc/qemu-ifdown);
+ use '[down]script=no' to disable script execution;
+ use 'fd=h' to connect to an already opened TAP interface
+ use 'sndbuf=nbytes' to limit the size of the send buffer; the
+ default of 'sndbuf=1048576' can be disabled using 'sndbuf=0'
+ use vnet_hdr=off to avoid enabling the IFF_VNET_HDR tap flag; use
+ vnet_hdr=on to make the lack of IFF_VNET_HDR support an error condition
+-net socket[,vlan=n][,name=str][,fd=h][,listen=[host]:port][,connect=host:port]
+ connect the vlan 'n' to another VLAN using a socket connection
+-net socket[,vlan=n][,name=str][,fd=h][,mcast=maddr:port]
+ connect the vlan 'n' to multicast maddr and port
+-net dump[,vlan=n][,file=f][,len=n]
+ dump traffic on vlan 'n' to file 'f' (max n bytes per packet)
+-net none use it alone to have zero network devices; if no -net option
+ is provided, the default is '-net nic -net user'
+-netdev [user|tap|socket],id=str[,option][,option][,...]
+
+Character device options:
+-chardev null,id=id
+-chardev socket,id=id[,host=host],port=host[,to=to][,ipv4][,ipv6][,nodelay]
+ [,server][,nowait][,telnet] (tcp)
+-chardev socket,id=id,path=path[,server][,nowait][,telnet] (unix)
+-chardev udp,id=id[,host=host],port=port[,localaddr=localaddr]
+ [,localport=localport][,ipv4][,ipv6]
+-chardev msmouse,id=id
+-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]
+-chardev file,id=id,path=path
+-chardev pipe,id=id,path=path
+-chardev pty,id=id
+-chardev stdio,id=id
+-chardev tty,id=id,path=path
+-chardev parport,id=id,path=path
+
+Bluetooth(R) options:
+-bt hci,null dumb bluetooth HCI - doesn't respond to commands
+-bt hci,host[:id]
+ use host's HCI with the given name
+-bt hci[,vlan=n]
+ emulate a standard HCI in virtual scatternet 'n'
+-bt vhci[,vlan=n]
+ add host computer to virtual scatternet 'n' using VHCI
+-bt device:dev[,vlan=n]
+ emulate a bluetooth device 'dev' in scatternet 'n'
+
+Linux/Multiboot boot specific:
+-kernel bzImage use 'bzImage' as kernel image
+-append cmdline use 'cmdline' as kernel command line
+-initrd file use 'file' as initial ram disk
+
+Debug/Expert options:
+-serial dev redirect the serial port to char device 'dev'
+-parallel dev redirect the parallel port to char device 'dev'
+-monitor dev redirect the monitor to char device 'dev'
+-qmp dev like -monitor but opens in 'control' mode.
+-mon chardev=[name][,mode=readline|control][,default]
+-pidfile file write PID to 'file'
+-singlestep always run in singlestep mode
+-S freeze CPU at startup (use 'c' to start execution)
+-gdb dev wait for gdb connection on 'dev'
+-s shorthand for -gdb tcp::1234
+-d item1,... output log to /tmp/qemu.log (use -d ? for a list of log items)
+-hdachs c,h,s[,t]
+ force hard disk 0 physical geometry and the optional BIOS
+ translation (t=none or lba) (usually qemu can guess them)
+-L path set the directory for the BIOS, VGA BIOS and keymaps
+-bios file set the filename for the BIOS
+-enable-kvm enable KVM full virtualization support
+-xen-domid id specify xen guest domain id
+-xen-create create domain using xen hypercalls, bypassing xend
+ warning: should not be used when xend is in use
+-xen-attach attach to existing xen domain
+ xend will use this when starting qemu
+-no-reboot exit instead of rebooting
+-no-shutdown stop before shutdown
+-loadvm [tag|id]
+ start right away with a saved state (loadvm in monitor)
+-daemonize daemonize QEMU after initializing
+-option-rom rom load a file, rom, into the option ROM space
+-clock force the use of the given methods for timer alarm.
+ To see what timers are available use -clock ?
+-rtc [base=utc|localtime|date][,clock=host|vm][,driftfix=none|slew]
+ set the RTC base and clock, enable drift fix for clock ticks
+-icount [N|auto]
+ enable virtual instruction counter with 2^N clock ticks per
+ instruction
+-watchdog i6300esb|ib700
+ enable virtual hardware watchdog [default=none]
+-watchdog-action reset|shutdown|poweroff|pause|debug|none
+ action when watchdog fires [default=reset]
+-echr chr set terminal escape character instead of ctrl-a
+-virtioconsole c
+ set virtio console
+-show-cursor show cursor
+-tb-size n set TB size
+-incoming p prepare for incoming migration, listen on port p
+-nodefaults don't create default devices.
+-chroot dir Chroot to dir just before starting the VM.
+-runas user Change to user id user just before starting the VM.
+-readconfig <file>
+-writeconfig <file>
+ read/write config file
+During emulation, the following keys are useful:
+ctrl-alt-f toggle full screen
+ctrl-alt-n switch to virtual console 'n'
+ctrl-alt toggle mouse and keyboard grab
+
+When using -nographic, press 'ctrl-a h' to get some help.
diff --git a/tests/qemuhelptest.c b/tests/qemuhelptest.c
index 0a78b05..c2d7942 100644
--- a/tests/qemuhelptest.c
+++ b/tests/qemuhelptest.c
@@ -21,6 +21,20 @@ struct testInfo {
static char *progname;
static char *abs_srcdir;
+static void printMismatchedFlags(int got, int expect)
+{
+ int i;
+
+ for (i = 0 ; i < (sizeof(got)*8) ; i++) {
+ int gotFlag = (got & (1 << i));
+ int expectFlag = (expect & (1 << i));
+ if (gotFlag && !expectFlag)
+ fprintf(stderr, "Extra flag %i\n", i);
+ if (!gotFlag && expectFlag)
+ fprintf(stderr, "Missing flag %i\n", i);
+ }
+}
+
static int testHelpStrParsing(const void *data)
{
const struct testInfo *info = data;
@@ -40,6 +54,10 @@ static int testHelpStrParsing(const void *data)
if (flags != info->flags) {
fprintf(stderr, "Computed flags do not match: got 0x%x, expected 0x%x\n",
flags, info->flags);
+
+ if (getenv("VIR_TEST_DEBUG"))
+ printMismatchedFlags(flags, info->flags);
+
return -1;
}
@@ -55,9 +73,9 @@ static int testHelpStrParsing(const void *data)
return -1;
}
- if (kvm_version != kvm_version) {
+ if (kvm_version != info->kvm_version) {
fprintf(stderr, "Parsed KVM versions do not match: got %u, expected %u\n",
- version, kvm_version);
+ kvm_version, info->kvm_version);
return -1;
}
@@ -182,6 +200,26 @@ mymain(int argc, char **argv)
QEMUD_CMD_FLAG_ENABLE_KVM |
QEMUD_CMD_FLAG_BALLOON,
10092, 1, 0);
+ DO_TEST("qemu-0.12.1",
+ QEMUD_CMD_FLAG_VNC_COLON |
+ QEMUD_CMD_FLAG_NO_REBOOT |
+ QEMUD_CMD_FLAG_DRIVE |
+ QEMUD_CMD_FLAG_NAME |
+ QEMUD_CMD_FLAG_UUID |
+ QEMUD_CMD_FLAG_MIGRATE_QEMU_TCP |
+ QEMUD_CMD_FLAG_MIGRATE_QEMU_EXEC |
+ QEMUD_CMD_FLAG_DRIVE_CACHE_V2 |
+ QEMUD_CMD_FLAG_DRIVE_FORMAT |
+ QEMUD_CMD_FLAG_DRIVE_SERIAL |
+ QEMUD_CMD_FLAG_VGA |
+ QEMUD_CMD_FLAG_0_10 |
+ QEMUD_CMD_FLAG_ENABLE_KVM |
+ QEMUD_CMD_FLAG_XEN_DOMID |
+ QEMUD_CMD_FLAG_MIGRATE_QEMU_UNIX |
+ QEMUD_CMD_FLAG_CHARDEV |
+ QEMUD_CMD_FLAG_BALLOON |
+ QEMUD_CMD_FLAG_DEVICE,
+ 12001, 0, 0);
return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
}
--
1.6.5.2
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