acaf2bc083
- domain_conf: initialize network hostdev private data (RHEL-151953) - qemu_hotplug: enter monitor in order to rollback passed FD (RHEL-151953) Resolves: RHEL-151953
95 lines
3.4 KiB
Diff
95 lines
3.4 KiB
Diff
From 51ada853c575b6361d013e1b594d918d862f873b Mon Sep 17 00:00:00 2001
|
|
Message-ID: <51ada853c575b6361d013e1b594d918d862f873b.1772815374.git.jdenemar@redhat.com>
|
|
From: Pavel Hrdina <phrdina@redhat.com>
|
|
Date: Thu, 26 Feb 2026 10:18:23 +0100
|
|
Subject: [PATCH] domain_conf: initialize network hostdev private data
|
|
|
|
Currently virDomainNetDef and virDomainActualNetDef use
|
|
virDomainHostdevDef directly as structure and the code doesn't call
|
|
virDomainHostdevDefNew() that would initialize private data.
|
|
|
|
This is hackish quick fix to solve a crash that happens in two
|
|
scenarios:
|
|
|
|
1. attaching any interface with hostdev backend
|
|
|
|
0x0000fffbfc0e2a90 in qemuDomainAttachHostPCIDevice (driver=0xfffbb4006750, vm=0xfffbf001f790, hostdev=0xfffbf400b150) at ../src/qemu/qemu_hotplug.c:1652
|
|
1652 if ((ret = qemuFDPassDirectTransferMonitor(hostdevPriv->vfioDeviceFd, priv->mon)) < 0)
|
|
|
|
2. starting VM with interface with hostdev backend using iommufd
|
|
|
|
0x00007f6638d5b9ca in qemuProcessOpenVfioDeviceFd (hostdev=hostdev@entry=0x7f6634425ee0) at ../src/qemu/qemu_process.c:7719
|
|
7719 hostdevPriv->vfioDeviceFd = qemuFDPassDirectNew(name, &vfioDeviceFd);
|
|
|
|
Proper fix for this issue is to refactor network code to use pointer and to
|
|
use virDomainHostdevDefNew().
|
|
|
|
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
|
|
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
|
|
(cherry picked from commit fe782ed334ea0d4373e6dad093f5815fc925a56b)
|
|
|
|
https://issues.redhat.com/browse/RHEL-151953
|
|
|
|
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
|
|
---
|
|
src/conf/domain_conf.c | 23 +++++++++++++++++++++--
|
|
1 file changed, 21 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
|
|
index cb047e5a3e..df05d96f01 100644
|
|
--- a/src/conf/domain_conf.c
|
|
+++ b/src/conf/domain_conf.c
|
|
@@ -3489,6 +3489,20 @@ void virDomainVideoDefFree(virDomainVideoDef *def)
|
|
}
|
|
|
|
|
|
+static int
|
|
+virDomainHostdevDefPrivateDataNew(virDomainHostdevDef *def,
|
|
+ virDomainXMLOption *xmlopt)
|
|
+{
|
|
+ if (!xmlopt || !xmlopt->privateData.hostdevNew)
|
|
+ return 0;
|
|
+
|
|
+ if (!(def->privateData = xmlopt->privateData.hostdevNew()))
|
|
+ return -1;
|
|
+
|
|
+ return 0;
|
|
+}
|
|
+
|
|
+
|
|
virDomainHostdevDef *
|
|
virDomainHostdevDefNew(virDomainXMLOption *xmlopt)
|
|
{
|
|
@@ -3498,8 +3512,7 @@ virDomainHostdevDefNew(virDomainXMLOption *xmlopt)
|
|
|
|
def->info = g_new0(virDomainDeviceInfo, 1);
|
|
|
|
- if (xmlopt && xmlopt->privateData.hostdevNew &&
|
|
- !(def->privateData = xmlopt->privateData.hostdevNew())) {
|
|
+ if (virDomainHostdevDefPrivateDataNew(def, xmlopt) < 0) {
|
|
VIR_FREE(def->info);
|
|
VIR_FREE(def);
|
|
return NULL;
|
|
@@ -9653,6 +9666,9 @@ virDomainActualNetDefParseXML(xmlNodePtr node,
|
|
virDomainHostdevDef *hostdev = &actual->data.hostdev.def;
|
|
int type;
|
|
|
|
+ if (virDomainHostdevDefPrivateDataNew(hostdev, xmlopt) < 0)
|
|
+ goto error;
|
|
+
|
|
hostdev->parentnet = parent;
|
|
hostdev->info = &parent->info;
|
|
/* The helper function expects type to already be found and
|
|
@@ -10346,6 +10362,9 @@ virDomainNetDefParseXML(virDomainXMLOption *xmlopt,
|
|
g_autofree char *addrtype = virXPathString("string(./source/address/@type)", ctxt);
|
|
int type;
|
|
|
|
+ if (virDomainHostdevDefPrivateDataNew(&def->data.hostdev.def, xmlopt) < 0)
|
|
+ return NULL;
|
|
+
|
|
def->data.hostdev.def.parentnet = def;
|
|
def->data.hostdev.def.info = &def->info;
|
|
def->data.hostdev.def.mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
|
|
--
|
|
2.53.0
|