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domain-conf: reorder usb controllers so the master is first

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USB controllers can share the same 'index' which indicates, that there
is some sort of master-companion relationship.  Reorder the controllers
in XML in to place the master controller before its companions.  This is
required by QEMU to not fail with error message:

error: internal error: process exited while connecting to monitor:
2015-10-26T16:25:17.630265Z qemu-system-x86_64:
-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6:
USB bus 'usb.0' not found

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1166452

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2015-11-11 15:20:15 +01:00
parent 6fdbdafcd7
commit fc03eb53c0
4 changed files with 74 additions and 0 deletions
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8
src/conf/domain_conf.c
View File

@ -13412,6 +13412,14 @@ void virDomainControllerInsertPreAlloced(virDomainDefPtr def,
* new controller, then new controller should go here
* */
insertAt = idx;
} else if (controller->info.mastertype == VIR_DOMAIN_CONTROLLER_MASTER_NONE &&
current->info.mastertype != VIR_DOMAIN_CONTROLLER_MASTER_NONE &&
current->idx == controller->idx) {
/* If bus matches and index matches and new controller is
* master and current isn't a master, then new controller
* should go here to be placed before its companion
*/
insertAt = idx;
} else if (insertAt == -1) {
/* Last controller with match bus is before the
* new controller, then put new controller just after

31
tests/qemuxml2argvdata/qemuxml2argv-controller-usb-order.xml Normal file
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@ -0,0 +1,31 @@
<domain type='kvm'>
<name>rhel7</name>
<uuid>c9b867fb-7274-4a22-8884-0867d05b38cf</uuid>
<memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-2.3'>hvm</type>
<boot dev='hd'/>
</os>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x7' multifunction='on'/>
</controller>
<controller type='usb' index='1' model='nec-xhci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</controller>
</devices>
</domain>

34
tests/qemuxml2xmloutdata/qemuxml2xmlout-controller-usb-order.xml Normal file
View File

@ -0,0 +1,34 @@
<domain type='kvm'>
<name>rhel7</name>
<uuid>c9b867fb-7274-4a22-8884-0867d05b38cf</uuid>
<memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-2.3'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-system-x86_64</emulator>
<controller type='usb' index='0' model='ich9-ehci1'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x7' multifunction='on'/>
</controller>
<controller type='usb' index='0' model='ich9-uhci1'>
<master startport='0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0' multifunction='on'/>
</controller>
<controller type='usb' index='1' model='nec-xhci'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
</controller>
<controller type='pci' index='0' model='pci-root'/>
<memballoon model='virtio'/>
</devices>
</domain>

1
tests/qemuxml2xmltest.c
View File

@ -507,6 +507,7 @@ mymain(void)
DO_TEST_DIFFERENT("usb-redir-filter");
DO_TEST_DIFFERENT("usb-redir-filter-version");
DO_TEST("blkdeviotune");
DO_TEST_DIFFERENT("controller-usb-order");
DO_TEST_FULL("seclabel-dynamic-baselabel", false, WHEN_INACTIVE);
DO_TEST_FULL("seclabel-dynamic-override", false, WHEN_INACTIVE);