[libvirt] [PATCH v4 1/2] Fix virDomainChrDefParseTargetXML() port value handling for serial and parallel ports

Hi, this is the patch to fix the virDomainChrDefParseTargetXML() functionality to parse the target port from XML if available. This is necessary for multiple serial port support which is the second part of this patch. Michal Signed-off-by: Michal Novotny <minovotn(a)redhat.com&gt; --- src/conf/domain_conf.c | 24 +++++++++++++++++++++--- 1 files changed, 21 insertions(+), 3 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index b97c1f0..0e68160 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2974,7 +2974,8 @@ virDomainChrDefParseTargetXML(virCapsPtr caps, default: portStr = virXMLPropString(cur, "port"); if (portStr == NULL) { - /* Not required. It will be assigned automatically later */ + /* Set to negative value to indicate we should set it later */ + def->target.port = -1; break; } @@ -2984,6 +2985,7 @@ virDomainChrDefParseTargetXML(virCapsPtr caps, portStr); goto error; } + def->target.port = port; break; } @@ -5547,7 +5549,15 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps, if (!chr) goto error; - chr->target.port = i; + if (chr->target.port == -1) { + int maxport = -1; + int j; + for (j = 0 ; j < i ; j++) { + if (def->parallels[j]->target.port > maxport) + maxport = def->parallels[j]->target.port; + } + chr->target.port = maxport + 1; + } def->parallels[def->nparallels++] = chr; } VIR_FREE(nodes); @@ -5567,7 +5577,15 @@ static virDomainDefPtr virDomainDefParseXML(virCapsPtr caps, if (!chr) goto error; - chr->target.port = i; + if (chr->target.port == -1) { + int maxport = -1; + int j; + for (j = 0 ; j < i ; j++) { + if (def->serials[j]->target.port > maxport) + maxport = def->serials[j]->target.port; + } + chr->target.port = maxport + 1; + } def->serials[def->nserials++] = chr; } VIR_FREE(nodes); -- 1.7.3.2