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qemu: fix default machine for argv -> xml convertor

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Historically the argv -> xml convertor wanted the same default machine
as we'd set when parsing xml. The latter has now changed, however, to
use a default defined by libvirt. The former needs fixing to again
honour the default QEMU machine.

This exposed a bug in handling for the aarch64 target, as QEMU does not
define any default machine. Thus we should not having been accepting
argv without a -machine provided.

Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2018-08-13 12:42:01 +01:00
parent 81950efa0b
commit 6700062fb0
12 changed files with 70 additions and 78 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
src/qemu/qemu_capabilities.c
View File

@ -2069,6 +2069,18 @@ const char *virQEMUCapsGetCanonicalMachine(virQEMUCapsPtr qemuCaps,
return name;
}
const char *
virQEMUCapsGetDefaultMachine(virQEMUCapsPtr qemuCaps)
{
size_t i;
for (i = 0; i < qemuCaps->nmachineTypes; i++) {
if (qemuCaps->machineTypes[i].qemuDefault)
return qemuCaps->machineTypes[i].name;
}
return NULL;
}
int virQEMUCapsGetMachineMaxCpus(virQEMUCapsPtr qemuCaps,
const char *name)

1
src/qemu/qemu_capabilities.h
View File

@ -559,6 +559,7 @@ bool virQEMUCapsIsCPUModeSupported(virQEMUCapsPtr qemuCaps,
virCPUMode mode);
const char *virQEMUCapsGetCanonicalMachine(virQEMUCapsPtr qemuCaps,
const char *name);
const char *virQEMUCapsGetDefaultMachine(virQEMUCapsPtr qemuCaps);
int virQEMUCapsGetMachineMaxCpus(virQEMUCapsPtr qemuCaps,
const char *name);
bool virQEMUCapsGetMachineHotplugCpus(virQEMUCapsPtr qemuCaps,

6
src/qemu/qemu_driver.c
View File

@ -7103,7 +7103,8 @@ static char *qemuConnectDomainXMLFromNative(virConnectPtr conn,
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
def = qemuParseCommandLineString(caps, driver->xmlopt, config,
def = qemuParseCommandLineString(driver->qemuCapsCache,
caps, driver->xmlopt, config,
NULL, NULL, NULL);
if (!def)
goto cleanup;
@ -16606,7 +16607,8 @@ static virDomainPtr qemuDomainQemuAttach(virConnectPtr conn,
if (!(caps = virQEMUDriverGetCapabilities(driver, false)))
goto cleanup;
if (!(def = qemuParseCommandLinePid(caps, driver->xmlopt, pid,
if (!(def = qemuParseCommandLinePid(driver->qemuCapsCache,
caps, driver->xmlopt, pid,
&pidfile, &monConfig, &monJSON)))
goto cleanup;

36
src/qemu/qemu_parse_command.c
View File

@ -1829,7 +1829,8 @@ qemuParseCommandLineBootDevs(virDomainDefPtr def, const char *str)
* as is practical. This is not an exact science....
*/
static virDomainDefPtr
qemuParseCommandLine(virCapsPtr caps,
qemuParseCommandLine(virFileCachePtr capsCache,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
char **progenv,
char **progargv,
@ -1851,6 +1852,7 @@ qemuParseCommandLine(virCapsPtr caps,
virDomainDiskDefPtr disk = NULL;
const char *ceph_args = qemuFindEnv(progenv, "CEPH_ARGS");
bool have_sdl = false;
virQEMUCapsPtr qemuCaps;
if (pidfile)
*pidfile = NULL;
@ -1865,6 +1867,9 @@ qemuParseCommandLine(virCapsPtr caps,
return NULL;
}
if (!(qemuCaps = virQEMUCapsCacheLookup(capsCache, progargv[0])))
goto error;
if (!(def = virDomainDefNew()))
goto error;
@ -2017,17 +2022,18 @@ qemuParseCommandLine(virCapsPtr caps,
/* If no machine type has been found among the arguments, then figure
* out a reasonable value by using capabilities */
if (!def->os.machine) {
virCapsDomainDataPtr capsdata;
const char *mach = virQEMUCapsGetDefaultMachine(qemuCaps);
if (!(capsdata = virCapabilitiesDomainDataLookup(caps, def->os.type,
def->os.arch, def->virtType, NULL, NULL)))
goto error;
if (VIR_STRDUP(def->os.machine, capsdata->machinetype) < 0) {
VIR_FREE(capsdata);
if (!mach) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("Binary '%s' does not have a default machine type "
"and no '-machine' arg is present"),
progargv[0]);
goto error;
}
VIR_FREE(capsdata);
if (VIR_STRDUP(def->os.machine, mach) < 0)
goto error;
}
/* Now the real processing loop */
@ -2718,6 +2724,7 @@ qemuParseCommandLine(virCapsPtr caps,
else
qemuDomainCmdlineDefFree(cmd);
virObjectUnref(qemuCaps);
return def;
error:
@ -2732,11 +2739,13 @@ qemuParseCommandLine(virCapsPtr caps,
}
if (pidfile)
VIR_FREE(*pidfile);
virObjectUnref(qemuCaps);
return NULL;
}
virDomainDefPtr qemuParseCommandLineString(virCapsPtr caps,
virDomainDefPtr qemuParseCommandLineString(virFileCachePtr capsCache,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
const char *args,
char **pidfile,
@ -2750,7 +2759,7 @@ virDomainDefPtr qemuParseCommandLineString(virCapsPtr caps,
if (qemuStringToArgvEnv(args, &progenv, &progargv) < 0)
goto cleanup;
def = qemuParseCommandLine(caps, xmlopt, progenv, progargv,
def = qemuParseCommandLine(capsCache, caps, xmlopt, progenv, progargv,
pidfile, monConfig, monJSON);
cleanup:
@ -2808,7 +2817,8 @@ static int qemuParseProcFileStrings(int pid_value,
return ret;
}
virDomainDefPtr qemuParseCommandLinePid(virCapsPtr caps,
virDomainDefPtr qemuParseCommandLinePid(virFileCachePtr capsCache,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
pid_t pid,
char **pidfile,
@ -2828,7 +2838,7 @@ virDomainDefPtr qemuParseCommandLinePid(virCapsPtr caps,
qemuParseProcFileStrings(pid, "environ", &progenv) < 0)
goto cleanup;
if (!(def = qemuParseCommandLine(caps, xmlopt, progenv, progargv,
if (!(def = qemuParseCommandLine(capsCache, caps, xmlopt, progenv, progargv,
pidfile, monConfig, monJSON)))
goto cleanup;

8
src/qemu/qemu_parse_command.h
View File

@ -24,19 +24,23 @@
#ifndef __QEMU_PARSE_COMMAND_H__
# define __QEMU_PARSE_COMMAND_H__
# include "virfilecache.h"
# define QEMU_QXL_VGAMEM_DEFAULT 16 * 1024
/*
* NB: def->name can be NULL upon return and the caller
* *must* decide how to fill in a name in this case
*/
virDomainDefPtr qemuParseCommandLineString(virCapsPtr caps,
virDomainDefPtr qemuParseCommandLineString(virFileCachePtr capsCache,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
const char *args,
char **pidfile,
virDomainChrSourceDefPtr *monConfig,
bool *monJSON);
virDomainDefPtr qemuParseCommandLinePid(virCapsPtr caps,
virDomainDefPtr qemuParseCommandLinePid(virFileCachePtr capsCache,
virCapsPtr caps,
virDomainXMLOptionPtr xmlopt,
pid_t pid,
char **pidfile,

11
tests/qemuargv2xmldata/nomachine-aarch64.args
View File

@ -1,11 +0,0 @@
LC_ALL=C \
PATH=/bin \
HOME=/home/test \
USER=test \
LOGNAME=test \
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-aarch64 \
-name QEMUGuest1 \
-m 512 \
-hda /dev/HostVG/QEMUGuest1 \
-cdrom /root/boot.iso

40
tests/qemuargv2xmldata/nomachine-aarch64.xml
View File

@ -1,40 +0,0 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='KiB'>524288</memory>
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='aarch64' machine='virt'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<gic version='2'/>
</features>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-aarch64</emulator>
<disk type='block' device='disk'>
<driver name='qemu' type='raw'/>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/root/boot.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<controller type='ide' index='0'/>
<graphics type='sdl'/>
<video>
<model type='cirrus' vram='16384' heads='1' primary='yes'/>
</video>
<memballoon model='none'/>
</devices>
</domain>

4
tests/qemuargv2xmldata/nomachine-ppc64.xml
View File

@ -5,7 +5,7 @@
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
<type arch='ppc64' machine='pseries-2.12'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
@ -27,7 +27,7 @@
<readonly/>
<address type='drive' controller='0' bus='0' target='0' unit='2'/>
</disk>
<controller type='usb' index='0'>
<controller type='usb' index='0' model='pci-ohci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'>

4
tests/qemuargv2xmldata/nomachine-x86_64.xml
View File

@ -5,7 +5,7 @@
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='x86_64' machine='pc-0.11'>hvm</type>
<type arch='x86_64' machine='pc-i440fx-2.12'>hvm</type>
<boot dev='hd'/>
</os>
<features>
@ -30,7 +30,7 @@
<readonly/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'>
<controller type='usb' index='0' model='piix3-uhci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>

4
tests/qemuargv2xmldata/pseries-disk.xml
View File

@ -5,7 +5,7 @@
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
<type arch='ppc64' machine='pseries-2.12'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
@ -27,7 +27,7 @@
<readonly/>
<address type='drive' controller='0' bus='0' target='0' unit='2'/>
</disk>
<controller type='usb' index='0'>
<controller type='usb' index='0' model='pci-ohci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'>

4
tests/qemuargv2xmldata/pseries-nvram.xml
View File

@ -5,7 +5,7 @@
<currentMemory unit='KiB'>524288</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='ppc64' machine='pseries'>hvm</type>
<type arch='ppc64' machine='pseries-2.12'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
@ -14,7 +14,7 @@
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu-system-ppc64</emulator>
<controller type='usb' index='0'>
<controller type='usb' index='0' model='pci-ohci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'>

18
tests/qemuargv2xmltest.c
View File

@ -65,7 +65,8 @@ static int testCompareXMLToArgvFiles(const char *xmlfile,
if (virTestLoadFile(cmdfile, &cmd) < 0)
goto fail;
if (!(vmdef = qemuParseCommandLineString(driver.caps, driver.xmlopt,
if (!(vmdef = qemuParseCommandLineString(driver.qemuCapsCache,
driver.caps, driver.xmlopt,
cmd, NULL, NULL, NULL)))
goto fail;
@ -154,6 +155,20 @@ mymain(void)
if (qemuTestDriverInit(&driver) < 0)
return EXIT_FAILURE;
# define LOAD_CAPS(arch) \
do { \
virQEMUCapsPtr qemuCaps; \
qemuCaps = qemuTestParseCapabilitiesArch(VIR_ARCH_X86_64, \
"qemucapabilitiesdata/caps_2.12.0." arch ".xml"); \
if (virFileCacheInsertData(driver.qemuCapsCache, \
"/usr/bin/qemu-system-" arch, \
qemuCaps) < 0) \
return EXIT_FAILURE; \
} while (0)
LOAD_CAPS("x86_64");
LOAD_CAPS("aarch64");
LOAD_CAPS("ppc64");
# define DO_TEST_FULL(name, flags) \
do { \
@ -290,7 +305,6 @@ mymain(void)
DO_TEST("machine-keywrap-none-argv");
DO_TEST("nomachine-x86_64");
DO_TEST("nomachine-aarch64");
DO_TEST("nomachine-ppc64");
qemuTestDriverFree(&driver);