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conf: add support for booting from redirected USB devices

Browse Source 
Commit a4c19459aa only added the
QEMU capability flag, command line option and added the boot element
for redirdev's in the XML schema.

This patch adds support for parsing and writing the XML with redirdevs
with the boot flag. It also ignores unknown XML elements in redirdev
instead of failing with:
"error: An error occurred, but the cause is unknown"

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=805414
This commit is contained in:
Ján Tomko 2012-11-20 19:47:07 +01:00 committed by Michal Privoznik
parent f2f9ae426a
commit cc244e2441
1 changed files with 17 additions and 17 deletions
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34
src/conf/domain_conf.c
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@ -7312,11 +7312,13 @@ error:
static virDomainRedirdevDefPtr
virDomainRedirdevDefParseXML(const xmlNodePtr node,
virBitmapPtr bootMap,
unsigned int flags)
{
xmlNodePtr cur;
virDomainRedirdevDefPtr def;
char *bus, *type = NULL;
int remaining;
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
@ -7348,25 +7350,20 @@ virDomainRedirdevDefParseXML(const xmlNodePtr node,
}
cur = node->children;
while (cur != NULL) {
if (cur->type == XML_ELEMENT_NODE) {
if (xmlStrEqual(cur->name, BAD_CAST "source")) {
int remaining;
remaining = virDomainChrSourceDefParseXML(&def->source.chr, cur, flags,
NULL, NULL, NULL, 0);
if (remaining != 0)
goto error;
}
}
cur = cur->next;
}
/* boot gets parsed in virDomainDeviceInfoParseXML
* source gets parsed in virDomainChrSourceDefParseXML
* we don't know any of the elements that might remain */
remaining = virDomainChrSourceDefParseXML(&def->source.chr, cur, flags,
NULL, NULL, NULL, 0);
if (remaining < 0)
goto error;
if (def->source.chr.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) {
def->source.chr.data.spicevmc = VIR_DOMAIN_CHR_SPICEVMC_USBREDIR;
}
if (virDomainDeviceInfoParseXML(node, NULL, &def->info, flags) < 0)
if (virDomainDeviceInfoParseXML(node, bootMap, &def->info,
flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
goto error;
if (def->bus == VIR_DOMAIN_REDIRDEV_BUS_USB &&
@ -7711,7 +7708,7 @@ virDomainDeviceDefPtr virDomainDeviceDefParse(virCapsPtr caps,
goto error;
} else if (xmlStrEqual(node->name, BAD_CAST "redirdev")) {
dev->type = VIR_DOMAIN_DEVICE_REDIRDEV;
if (!(dev->data.redirdev = virDomainRedirdevDefParseXML(node, flags)))
if (!(dev->data.redirdev = virDomainRedirdevDefParseXML(node, NULL, flags)))
goto error;
} else {
virReportError(VIR_ERR_XML_ERROR,
@ -8295,7 +8292,8 @@ virDomainDefParseBootXML(xmlXPathContextPtr ctxt,
if (virXPathULong("count(./devices/disk[boot]"
"|./devices/interface[boot]"
"|./devices/hostdev[boot])", ctxt, &deviceBoot) < 0) {
"|./devices/hostdev[boot]"
"|./devices/redirdev[boot])", ctxt, &deviceBoot) < 0) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("cannot count boot devices"));
goto cleanup;
@ -10009,6 +10007,7 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps,
goto no_memory;
for (i = 0 ; i < n ; i++) {
virDomainRedirdevDefPtr redirdev = virDomainRedirdevDefParseXML(nodes[i],
bootMap,
flags);
if (!redirdev)
goto error;
@ -13449,7 +13448,8 @@ virDomainRedirdevDefFormat(virBufferPtr buf,
virBufferAsprintf(buf, " <redirdev bus='%s'", bus);
if (virDomainChrSourceDefFormat(buf, &def->source.chr, false, flags) < 0)
return -1;
if (virDomainDeviceInfoFormat(buf, &def->info, flags) < 0)
if (virDomainDeviceInfoFormat(buf, &def->info,
flags | VIR_DOMAIN_XML_INTERNAL_ALLOW_BOOT) < 0)
return -1;
virBufferAddLit(buf, " </redirdev>\n");