diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 1c2feebdcfaa6c09f8f148e91954571f03d4604e..f2e6e5a2403b81d24266dfa4e9826d2ee3f4900f 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -7686,7 +7686,7 @@ qemuBuildCommandLine(virConnectPtr conn, virCommandAddArg(cmd, "-m"); def->mem.max_balloon = VIR_DIV_UP(def->mem.max_balloon, 1024) * 1024; virCommandAddArgFormat(cmd, "%llu", def->mem.max_balloon / 1024); - if (def->mem.nhugepages && !def->mem.hugepages[0].size) { + if (def->mem.nhugepages && (!def->cpu || !def->cpu->ncells)) { char *mem_path; if (!cfg->nhugetlbfs) { @@ -7702,9 +7702,26 @@ qemuBuildCommandLine(virConnectPtr conn, goto error; } - if (!(mem_path = qemuGetDefaultHugepath(cfg->hugetlbfs, - cfg->nhugetlbfs))) - goto error; + if (def->mem.hugepages[0].size) { + for (j = 0; j < cfg->nhugetlbfs; j++) { + if (cfg->hugetlbfs[j].size == def->mem.hugepages[0].size) + break; + } + + if (j == cfg->nhugetlbfs) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("Unable to find any usable hugetlbfs mount for %llu KiB"), + def->mem.hugepages[0].size); + goto error; + } + + if (!(mem_path = qemuGetHugepagePath(&cfg->hugetlbfs[j]))) + goto error; + } else { + if (!(mem_path = qemuGetDefaultHugepath(cfg->hugetlbfs, + cfg->nhugetlbfs))) + goto error; + } virCommandAddArgList(cmd, "-mem-prealloc", "-mem-path", mem_path, NULL); diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.args b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.args new file mode 100644 index 0000000000000000000000000000000000000000..0e0f35a966a798f7603e405bf7129455ec2c9f6a --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.args @@ -0,0 +1,7 @@ +LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test QEMU_AUDIO_DRV=none \ +/usr/bin/qemu -S -M pc -m 1024 \ +-mem-prealloc \ +-mem-path /dev/hugepages2M/libvirt/qemu \ +-smp 2 -nographic \ +-monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -usb \ +-hda /dev/HostVG/QEMUGuest1 -net none -serial none -parallel none diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.xml new file mode 100644 index 0000000000000000000000000000000000000000..50a9cd8c68f8f53a32319b8dda931d9739038f80 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages5.xml @@ -0,0 +1,32 @@ + + SomeDummyHugepagesGuest + ef1bdff4-27f3-4e85-a807-5fb4d58463cc + 1048576 + 1048576 + + + + + + 2 + + hvm + + + + destroy + restart + destroy + + /usr/bin/qemu + + + +
+ + + + + + + diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index c8a6c2e507b591ae2c77468f103da82c5958e02c..275e699aeb9743be5a01cd2ac7950921901880bc 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -688,6 +688,7 @@ mymain(void) QEMU_CAPS_OBJECT_MEMORY_FILE); DO_TEST_FAILURE("hugepages-pages4", QEMU_CAPS_MEM_PATH, QEMU_CAPS_OBJECT_MEMORY_RAM, QEMU_CAPS_OBJECT_MEMORY_FILE); + DO_TEST("hugepages-pages5", QEMU_CAPS_MEM_PATH); DO_TEST("nosharepages", QEMU_CAPS_MACHINE_OPT, QEMU_CAPS_MEM_MERGE); DO_TEST("disk-cdrom", NONE); DO_TEST("disk-cdrom-network-http", QEMU_CAPS_KVM, QEMU_CAPS_DEVICE,