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libvirt/tests/qemuxml2argvdata/hugepages-nodeset.args

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conf: Introduce virDomainDefPostParseMemtune Previously we were ignoring "nodeset" attribute for hugepage pages if there was no guest NUMA topology configured in the domain XML. Commit <fa6bdf6afa878b8d7c5ed71664ee72be8967cdc5> partially fixed that issue but it introduced a somehow valid regression. In case that there is no guest NUMA topology configured and the "nodeset" attribute is set to "0" it was accepted and was working properly even though it was not completely valid XML. This patch introduces a workaround that it will ignore the nodeset="0" only in case that there is no guest NUMA topology in order not to hit the validation error. After this commit the following XML configuration is valid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> </hugepages> </memoryBacking> but this configuration remains invalid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> <page size='1048576' unit='KiB'/> </hugepages> </memoryBacking> The issue with the second configuration is that it was originally working, however changing the order of the <page> elements resolved into using different page size for the guest. The code is written in a way that it expect only one page configured and always uses only the first page in case that there is no guest NUMA topology configured. See qemuBuildMemPathStr() function for details. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1591235 Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-08 15:03:40 +00:00
LC_ALL=C \
PATH=/bin \
qemu: command: Override HOME variable for system QEMU By default, qemu user's home dir points to '/' which shouldn't be used at all. We therefore pass the HOME variable from the current variable iff not running as SUID, which means that for systemd we never set it. This patch makes sure, that for system QEMU this is always set to libDir/<driver>, session mode is left untouched. Signed-off-by: Erik Skultety <eskultet@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-03-06 12:29:01 +00:00
HOME=/tmp/lib/domain--1-SomeDummyHugepagesGu \
conf: Introduce virDomainDefPostParseMemtune Previously we were ignoring "nodeset" attribute for hugepage pages if there was no guest NUMA topology configured in the domain XML. Commit <fa6bdf6afa878b8d7c5ed71664ee72be8967cdc5> partially fixed that issue but it introduced a somehow valid regression. In case that there is no guest NUMA topology configured and the "nodeset" attribute is set to "0" it was accepted and was working properly even though it was not completely valid XML. This patch introduces a workaround that it will ignore the nodeset="0" only in case that there is no guest NUMA topology in order not to hit the validation error. After this commit the following XML configuration is valid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> </hugepages> </memoryBacking> but this configuration remains invalid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> <page size='1048576' unit='KiB'/> </hugepages> </memoryBacking> The issue with the second configuration is that it was originally working, however changing the order of the <page> elements resolved into using different page size for the guest. The code is written in a way that it expect only one page configured and always uses only the first page in case that there is no guest NUMA topology configured. See qemuBuildMemPathStr() function for details. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1591235 Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-08 15:03:40 +00:00
USER=test \
LOGNAME=test \
qemu: command: Enforce setting XDG variables for system QEMU For session mode, only XDG_CACHE_HOME is set, because we want to remain integrating with services in user session, but for system mode, this would have become reading/writing to '/' which carries the obvious issue with permissions (also, '/' is the wrong location in 99.9% cases anyway). Signed-off-by: Erik Skultety <eskultet@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2019-03-08 11:15:07 +00:00
XDG_DATA_HOME=/tmp/lib/domain--1-SomeDummyHugepagesGu/.local/share \
XDG_CACHE_HOME=/tmp/lib/domain--1-SomeDummyHugepagesGu/.cache \
XDG_CONFIG_HOME=/tmp/lib/domain--1-SomeDummyHugepagesGu/.config \
conf: Introduce virDomainDefPostParseMemtune Previously we were ignoring "nodeset" attribute for hugepage pages if there was no guest NUMA topology configured in the domain XML. Commit <fa6bdf6afa878b8d7c5ed71664ee72be8967cdc5> partially fixed that issue but it introduced a somehow valid regression. In case that there is no guest NUMA topology configured and the "nodeset" attribute is set to "0" it was accepted and was working properly even though it was not completely valid XML. This patch introduces a workaround that it will ignore the nodeset="0" only in case that there is no guest NUMA topology in order not to hit the validation error. After this commit the following XML configuration is valid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> </hugepages> </memoryBacking> but this configuration remains invalid: <memoryBacking> <hugepages> <page size='2048' unit='KiB' nodeset='0'/> <page size='1048576' unit='KiB'/> </hugepages> </memoryBacking> The issue with the second configuration is that it was originally working, however changing the order of the <page> elements resolved into using different page size for the guest. The code is written in a way that it expect only one page configured and always uses only the first page in case that there is no guest NUMA topology configured. See qemuBuildMemPathStr() function for details. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1591235 Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2018-08-08 15:03:40 +00:00
QEMU_AUDIO_DRV=none \
/usr/bin/qemu-system-i686 \
-name SomeDummyHugepagesGuest \
-S \
-machine pc,accel=tcg,usb=off,dump-guest-core=off \
-m 1024 \
-mem-prealloc \
-mem-path /dev/hugepages2M/libvirt/qemu/-1-SomeDummyHugepagesGu \
-smp 2,sockets=2,cores=1,threads=1 \
-uuid ef1bdff4-27f3-4e85-a807-5fb4d58463cc \
-display none \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,\
path=/tmp/lib/domain--1-SomeDummyHugepagesGu/monitor.sock,server,nowait \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc \
-no-shutdown \
-no-acpi \
-usb
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