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qemuBuildMemballoonCommandLine: Generate via JSON

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The generated properties have the following types according to QEMU:
  deflate-on-oom=<bool>  - on/off (default: false)
  free-page-reporting=<bool> - on/off (default: false)

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-09-30 17:55:49 +02:00
parent 82bf36e551
commit 5626327552
1 changed files with 18 additions and 19 deletions
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37
src/qemu/qemu_command.c
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@ -4220,36 +4220,35 @@ qemuBuildMemballoonCommandLine(virCommand *cmd,
const virDomainDef *def,
virQEMUCaps *qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
g_autoptr(virJSONValue) props = NULL;
if (!virDomainDefHasMemballoon(def))
return 0;
if (qemuBuildVirtioDevStr(&buf, qemuCaps,
VIR_DOMAIN_DEVICE_MEMBALLOON,
def->memballoon) < 0) {
return -1;
}
virBufferAsprintf(&buf, ",id=%s", def->memballoon->info.alias);
if (qemuBuildDeviceAddressStr(&buf, def, &def->memballoon->info) < 0)
if (!(props = qemuBuildVirtioDevProps(VIR_DOMAIN_DEVICE_MEMBALLOON,
def->memballoon, qemuCaps)))
return -1;
if (def->memballoon->autodeflate != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",deflate-on-oom=%s",
virTristateSwitchTypeToString(def->memballoon->autodeflate));
}
if (virJSONValueObjectAdd(props,
"s:id", def->memballoon->info.alias,
NULL) < 0)
return -1;
if (def->memballoon->free_page_reporting != VIR_TRISTATE_SWITCH_ABSENT) {
virBufferAsprintf(&buf, ",free-page-reporting=%s",
virTristateSwitchTypeToString(def->memballoon->free_page_reporting));
}
if (qemuBuildDeviceAddressProps(props, def, &def->memballoon->info) < 0)
return -1;
if (virJSONValueObjectAdd(props,
"T:deflate-on-oom", def->memballoon->autodeflate,
"T:free-page-reporting", def->memballoon->free_page_reporting,
NULL) < 0)
return -1;
if (qemuCommandAddExtDevice(cmd, &def->memballoon->info) < 0)
return -1;
virCommandAddArg(cmd, "-device");
virCommandAddArgBuffer(cmd, &buf);
if (qemuBuildDeviceCommandlineFromJSON(cmd, props, qemuCaps) < 0)
return -1;
return 0;
}