On Wed, Jun 14, 2017 at 10:48:33AM +0200, Michal Privoznik wrote:

https://bugzilla.redhat.com/show_bug.cgi?id=1214369

My fix 671d18594f4 was incomplete. If domain doesn't have hugepages enalbed, because of missing condition we would still be

s/enalbed/enabled

putting hugepages path onto qemu cmd line. Clean up the conditions so that it's more visible next time.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com> --- src/qemu/qemu_command.c | 12 +++++----- .../qemuxml2argv-cpu-numa-memshared.args | 26 ++++++++++++++++++++++ tests/qemuxml2argvtest.c | 1 + 3 files changed, 33 insertions(+), 6 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.args

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 3e1552a1b..8c12b2be0 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -3408,23 +3408,23 @@ qemuBuildMemoryBackendStr(virJSONValuePtr *backendProps,

if (pagesize || mem->nvdimmPath || memAccess || def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) { *backendType = "memory-backend-file";

- if (mem->nvdimmPath) { + if (pagesize) { + if (qemuGetDomainHupageMemPath(def, cfg, pagesize, &memPath) < 0) + goto cleanup; + prealloc = true; + } else if (mem->nvdimmPath) { if (VIR_STRDUP(memPath, mem->nvdimmPath) < 0) goto cleanup; prealloc = true; - } else if (!pagesize && def->mem.source == VIR_DOMAIN_MEMORY_SOURCE_FILE) { + } else { /* We can have both pagesize and mem source. If that's the case, * prefer hugepages as those are more specific. */ if (VIR_STRDUP(memPath, cfg->memoryBackingDir) < 0) goto cleanup; - } else { - if (qemuGetDomainHupageMemPath(def, cfg, pagesize, &memPath) < 0) - goto cleanup; - prealloc = true; }

if (virJSONValueObjectAdd(props, "B:prealloc", prealloc, "s:mem-path", memPath, diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.args b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.args new file mode 100644 index 000000000..cceffce3a --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.args @@ -0,0 +1,26 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/home/test \ +USER=test \ +LOGNAME=test \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-x86_64 \ +-name QEMUGuest1 \ +-S \ +-M pc \ +-m 214 \ +-smp 16,sockets=2,cores=4,threads=2 \ +-object memory-backend-file,id=ram-node0,mem-path=/var/lib/libvirt/qemu/ram,\ +share=yes,size=112197632 \ +-numa node,nodeid=0,cpus=0-7,memdev=ram-node0 \ +-object memory-backend-file,id=ram-node1,mem-path=/var/lib/libvirt/qemu/ram,\ +share=no,size=112197632 \ +-numa node,nodeid=1,cpus=8-15,memdev=ram-node1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-nographic \ +-nodefaults \ +-monitor unix:/tmp/lib/domain--1-QEMUGuest1/monitor.sock,server,nowait \ +-no-acpi \ +-boot n \ +-usb \ +-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3 diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 43d3f1bd3..799aea9fa 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -1539,10 +1539,11 @@ mymain(void) DO_TEST_PARSE_ERROR("cpu-numa3", NONE); DO_TEST_FAILURE("cpu-numa-disjoint", NONE); DO_TEST("cpu-numa-disjoint", QEMU_CAPS_NUMA); DO_TEST_FAILURE("cpu-numa-memshared", QEMU_CAPS_OBJECT_MEMORY_RAM); DO_TEST_FAILURE("cpu-numa-memshared", NONE); + DO_TEST("cpu-numa-memshared", QEMU_CAPS_OBJECT_MEMORY_FILE); DO_TEST("cpu-host-model", NONE); DO_TEST("cpu-host-model-vendor", NONE); skipLegacyCPUs = true; DO_TEST("cpu-host-model-fallback", NONE); DO_TEST_FAILURE("cpu-host-model-nofallback", NONE);

Fixes the issue described by https://bugzilla.redhat.com/show_bug.cgi?id=1214369#c16. ACK Erik