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conf: don't format memtune with unlimited values

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When changing memtune limits to unlimited with AFFECT_CONFIG, the
values in virDomainDef are set to PARAM_UNLIMITED, which causes the
whole <memtune> to be formatted.  This can be changed in all drivers,
but it also makes sense to use the default (0) as another value for
"unlimited", since zero memory limit makes no sense.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This commit is contained in:
Martin Kletzander 2013-12-09 11:32:48 +01:00
parent 8d7c668e64
commit ea130e3bf6
6 changed files with 88 additions and 20 deletions
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44
src/conf/domain_conf.c
View File

@ -16643,28 +16643,32 @@ virDomainDefFormatInternal(virDomainDefPtr def,
}
/* add memtune only if there are any */
if (def->mem.hard_limit || def->mem.soft_limit || def->mem.min_guarantee ||
def->mem.swap_hard_limit)
if ((def->mem.hard_limit &&
def->mem.hard_limit != VIR_DOMAIN_MEMORY_PARAM_UNLIMITED) ||
(def->mem.soft_limit &&
def->mem.hard_limit != VIR_DOMAIN_MEMORY_PARAM_UNLIMITED) ||
(def->mem.swap_hard_limit &&
def->mem.hard_limit != VIR_DOMAIN_MEMORY_PARAM_UNLIMITED) ||
def->mem.min_guarantee) {
virBufferAddLit(buf, " <memtune>\n");
if (def->mem.hard_limit) {
virBufferAsprintf(buf, " <hard_limit unit='KiB'>"
"%llu</hard_limit>\n", def->mem.hard_limit);
}
if (def->mem.soft_limit) {
virBufferAsprintf(buf, " <soft_limit unit='KiB'>"
"%llu</soft_limit>\n", def->mem.soft_limit);
}
if (def->mem.min_guarantee) {
virBufferAsprintf(buf, " <min_guarantee unit='KiB'>"
"%llu</min_guarantee>\n", def->mem.min_guarantee);
}
if (def->mem.swap_hard_limit) {
virBufferAsprintf(buf, " <swap_hard_limit unit='KiB'>"
"%llu</swap_hard_limit>\n", def->mem.swap_hard_limit);
}
if (def->mem.hard_limit || def->mem.soft_limit || def->mem.min_guarantee ||
def->mem.swap_hard_limit)
if (def->mem.hard_limit) {
virBufferAsprintf(buf, " <hard_limit unit='KiB'>"
"%llu</hard_limit>\n", def->mem.hard_limit);
}
if (def->mem.soft_limit) {
virBufferAsprintf(buf, " <soft_limit unit='KiB'>"
"%llu</soft_limit>\n", def->mem.soft_limit);
}
if (def->mem.min_guarantee) {
virBufferAsprintf(buf, " <min_guarantee unit='KiB'>"
"%llu</min_guarantee>\n", def->mem.min_guarantee);
}
if (def->mem.swap_hard_limit) {
virBufferAsprintf(buf, " <swap_hard_limit unit='KiB'>"
"%llu</swap_hard_limit>\n", def->mem.swap_hard_limit);
}
virBufferAddLit(buf, " </memtune>\n");
}
if (def->mem.hugepage_backed || def->mem.nosharepages || def->mem.locked) {
virBufferAddLit(buf, " <memoryBacking>\n");

6
tests/qemuxml2argvdata/qemuxml2argv-memtune-unlimited.args Normal file
View File

@ -0,0 +1,6 @@
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \
/usr/bin/qemu \
-name QEMUGuest1 -S -M pc -m 214 -smp 1 -nographic -monitor \
unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb \
-hda /dev/HostVG/QEMUGuest1 -net none -serial \
none -parallel none

29
tests/qemuxml2argvdata/qemuxml2argv-memtune-unlimited.xml Normal file
View File

@ -0,0 +1,29 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='MiB'>214</memory>
<currentMemory unit='KiB'>219136</currentMemory>
<memtune>
<hard_limit unit='KiB'>9007199254740991</hard_limit>
</memtune>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='i686' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu</emulator>
<disk type='block' device='disk'>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'/>
<controller type='ide' index='0'/>
<memballoon model='virtio'/>
</devices>
</domain>

1
tests/qemuxml2argvtest.c
View File

@ -1126,6 +1126,7 @@ mymain(void)
QEMU_CAPS_KVM, QEMU_CAPS_CPU_HOST);
DO_TEST("memtune", QEMU_CAPS_NAME);
DO_TEST("memtune-unlimited", QEMU_CAPS_NAME);
DO_TEST("blkiotune", QEMU_CAPS_NAME);
DO_TEST("blkiotune-device", QEMU_CAPS_NAME);
DO_TEST("cputune", QEMU_CAPS_NAME);

27
tests/qemuxml2xmloutdata/qemuxml2xmlout-memtune-unlimited.xml Normal file
View File

@ -0,0 +1,27 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory unit='KiB'>219136</memory>
<currentMemory unit='KiB'>219136</currentMemory>
<vcpu placement='static'>1</vcpu>
<os>
<type arch='i686' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu</emulator>
<disk type='block' device='disk'>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<controller type='usb' index='0'/>
<controller type='ide' index='0'/>
<controller type='pci' index='0' model='pci-root'/>
<memballoon model='virtio'/>
</devices>
</domain>

1
tests/qemuxml2xmltest.c
View File

@ -247,6 +247,7 @@ mymain(void)
DO_TEST("encrypted-disk");
DO_TEST_DIFFERENT("memtune");
DO_TEST_DIFFERENT("memtune-unlimited");
DO_TEST("blkiotune");
DO_TEST("blkiotune-device");
DO_TEST("cputune");