4:39 a.m.
Reviewed-by: Daniel Henrique Barboza <danielhb413(a)gmail.com>
---
include/libvirt/libvirt-domain.h | 1 +
src/conf/numa_conf.c | 9 +++++
src/qemu/qemu_command.c | 6 ++-
src/qemu/qemu_process.c | 27 +++++++++++++
src/util/virnuma.c | 3 ++
.../numatune-memnode-invalid-mode.err | 1 +
.../numatune-memnode-invalid-mode.xml | 33 +++++++++++++++
...emnode-restrictive-mode.x86_64-latest.args | 40 +++++++++++++++++++
.../numatune-memnode-restrictive-mode.xml | 33 +++++++++++++++
tests/qemuxml2argvtest.c | 2 +
...memnode-restrictive-mode.x86_64-latest.xml | 40 +++++++++++++++++++
tests/qemuxml2xmltest.c | 1 +
12 files changed, 195 insertions(+), 1 deletion(-)
create mode 100644 tests/qemuxml2argvdata/numatune-memnode-invalid-mode.err
create mode 100644 tests/qemuxml2argvdata/numatune-memnode-invalid-mode.xml
create mode 100644
tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
create mode 100644 tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.xml
create mode 100644
tests/qemuxml2xmloutdata/numatune-memnode-restrictive-mode.x86_64-latest.xml
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index de2456812c..eabb3c091b 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -1527,6 +1527,7 @@ typedef enum {
VIR_DOMAIN_NUMATUNE_MEM_STRICT = 0,
VIR_DOMAIN_NUMATUNE_MEM_PREFERRED = 1,
VIR_DOMAIN_NUMATUNE_MEM_INTERLEAVE = 2,
+ VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE = 3,
# ifdef VIR_ENUM_SENTINELS
VIR_DOMAIN_NUMATUNE_MEM_LAST /* This constant is subject to change */
diff --git a/src/conf/numa_conf.c b/src/conf/numa_conf.c
index f8a7a01ac9..df888a8dfb 100644
--- a/src/conf/numa_conf.c
+++ b/src/conf/numa_conf.c
@@ -43,6 +43,7 @@ VIR_ENUM_IMPL(virDomainNumatuneMemMode,
"strict",
"preferred",
"interleave",
+ "restrictive",
);
VIR_ENUM_IMPL(virDomainNumatunePlacement,
@@ -234,6 +235,14 @@ virDomainNumatuneNodeParseXML(virDomainNumaPtr numa,
_("Invalid mode attribute in memnode
element"));
goto cleanup;
}
+
+ if (numa->memory.mode == VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE &&
+ mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("'restrictive' mode is required in memnode
element "
+ "when mode is 'restrictive' in memory
element"));
+ goto cleanup;
+ }
VIR_FREE(tmp);
mem_node->mode = mode;
}
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index b06a086e18..9bf2cc8ae8 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -174,6 +174,7 @@ VIR_ENUM_IMPL(qemuNumaPolicy,
"bind",
"preferred",
"interleave",
+ "restricted",
);
@@ -3159,7 +3160,10 @@ qemuBuildMemoryBackendProps(virJSONValuePtr *backendProps,
return -1;
}
- if (nodemask) {
+ /* If mode is "restrictive", we should only use cgroups setting allowed
memory
+ * nodes, and skip passing the host-nodes and policy parameters to QEMU command
+ * line which means we will use system default memory policy. */
+ if (nodemask && mode != VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
if (!virNumaNodesetIsAvailable(nodemask))
return -1;
if (virJSONValueObjectAdd(props,
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index e7421b415f..0080985dd7 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -2713,6 +2713,7 @@ qemuProcessSetupPid(virDomainObjPtr vm,
g_autoptr(virBitmap) hostcpumap = NULL;
g_autofree char *mem_mask = NULL;
int ret = -1;
+ size_t i;
if ((period || quota) &&
!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPU)) {
@@ -2753,6 +2754,32 @@ qemuProcessSetupPid(virDomainObjPtr vm,
&mem_mask, -1) < 0)
goto cleanup;
+ /* For vCPU threads, mem_mask is different among cells and mem_mask
+ * is used to set cgroups cpuset.mems for vcpu threads. If we specify
+ * 'restrictive' mode, that means we will set system default memory
+ * policy and only use cgroups to restrict allowed memory nodes. */
+ if (nameval == VIR_CGROUP_THREAD_VCPU) {
+ virDomainNumaPtr numatune = vm->def->numa;
+ virBitmapPtr numanode_cpumask = NULL;
+ for (i = 0; i < virDomainNumaGetNodeCount(numatune); i++) {
+ numanode_cpumask = virDomainNumaGetNodeCpumask(numatune, i);
+ /* 'i' indicates the cell id, if the vCPU id is in this cell
+ * and mode is 'restrictive', we need get the corresponding
+ * nodeset. */
+ if (virBitmapIsBitSet(numanode_cpumask, id) &&
+ virDomainNumatuneGetMode(numatune, i, &mem_mode) == 0 &&
+ mem_mode == VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE) {
+ if (virDomainNumatuneMaybeFormatNodeset(numatune,
+ priv->autoNodeset,
+ &mem_mask, i) < 0) {
+ goto cleanup;
+ } else {
+ break;
+ }
+ }
+ }
+ }
+
if (virCgroupNewThread(priv->cgroup, nameval, id, true, &cgroup) < 0)
goto cleanup;
diff --git a/src/util/virnuma.c b/src/util/virnuma.c
index a05e4ac72c..ef912492c6 100644
--- a/src/util/virnuma.c
+++ b/src/util/virnuma.c
@@ -152,6 +152,9 @@ virNumaSetupMemoryPolicy(virDomainNumatuneMemMode mode,
numa_set_interleave_mask(&mask);
break;
+ case VIR_DOMAIN_NUMATUNE_MEM_RESTRICTIVE:
+ break;
+
case VIR_DOMAIN_NUMATUNE_MEM_LAST:
break;
}
diff --git a/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.err
b/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.err
new file mode 100644
index 0000000000..180e64d1d8
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.err
@@ -0,0 +1 @@
+XML error: 'restrictive' mode is required in memnode element when mode is
'restrictive' in memory element
diff --git a/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.xml
b/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.xml
new file mode 100644
index 0000000000..a7c18d4d50
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-invalid-mode.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+ <name>QEMUGuest</name>
+ <uuid>9f4b6512-e73a-4a25-93e8-5307802821ce</uuid>
+ <memory unit='KiB'>24682468</memory>
+ <currentMemory unit='KiB'>24682468</currentMemory>
+ <vcpu placement='static'>32</vcpu>
+ <numatune>
+ <memory mode='restrictive' nodeset='0-7'/>
+ <memnode cellid='0' mode='restrictive' nodeset='3'/>
+ <memnode cellid='2' mode='strict'
nodeset='1-2,5-7,^6'/>
+ </numatune>
+ <os>
+ <type arch='x86_64' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu>
+ <numa>
+ <cell id='0' cpus='0' memory='20002'
unit='KiB'/>
+ <cell id='1' cpus='1-27,29' memory='660066'
unit='KiB'/>
+ <cell id='2' cpus='28,30-31' memory='24002400'
unit='KiB'/>
+ </numa>
+ </cpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-x86_64</emulator>
+ <controller type='usb' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
new file mode 100644
index 0000000000..1f15c4396e
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.x86_64-latest.args
@@ -0,0 +1,40 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-QEMUGuest \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest/.config \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-x86_64 \
+-name guest=QEMUGuest,debug-threads=on \
+-S \
+-object secret,id=masterKey0,format=raw,\
+file=/tmp/lib/domain--1-QEMUGuest/master-key.aes \
+-machine pc,accel=tcg,usb=off,dump-guest-core=off \
+-cpu qemu64 \
+-m 24105 \
+-overcommit mem-lock=off \
+-smp 32,sockets=32,cores=1,threads=1 \
+-object memory-backend-ram,id=ram-node0,size=20971520 \
+-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
+-object memory-backend-ram,id=ram-node1,size=676331520 \
+-numa node,nodeid=1,cpus=1-27,cpus=29,memdev=ram-node1 \
+-object memory-backend-ram,id=ram-node2,size=24578621440 \
+-numa node,nodeid=2,cpus=28,cpus=30-31,memdev=ram-node2 \
+-uuid 9f4b6512-e73a-4a25-93e8-5307802821ce \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-no-acpi \
+-boot strict=on \
+-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x2 \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
+resourcecontrol=deny \
+-msg timestamp=on
diff --git a/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.xml
b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.xml
new file mode 100644
index 0000000000..72949b0657
--- /dev/null
+++ b/tests/qemuxml2argvdata/numatune-memnode-restrictive-mode.xml
@@ -0,0 +1,33 @@
+<domain type='qemu'>
+ <name>QEMUGuest</name>
+ <uuid>9f4b6512-e73a-4a25-93e8-5307802821ce</uuid>
+ <memory unit='KiB'>24682468</memory>
+ <currentMemory unit='KiB'>24682468</currentMemory>
+ <vcpu placement='static'>32</vcpu>
+ <numatune>
+ <memnode cellid='0' mode='restrictive' nodeset='3'/>
+ <memory mode='restrictive' nodeset='0-7'/>
+ <memnode cellid='2' mode='restrictive'
nodeset='1-2,5-7,^6'/>
+ </numatune>
+ <os>
+ <type arch='x86_64' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu>
+ <numa>
+ <cell id='0' cpus='0' memory='20002'
unit='KiB'/>
+ <cell id='1' cpus='1-27,29' memory='660066'
unit='KiB'/>
+ <cell id='2' cpus='28,30-31' memory='24002400'
unit='KiB'/>
+ </numa>
+ </cpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-x86_64</emulator>
+ <controller type='usb' index='0'/>
+ <controller type='pci' index='0' model='pci-root'/>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 96a2b95331..e26197a30b 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1994,6 +1994,8 @@ mymain(void)
QEMU_CAPS_NUMA,
QEMU_CAPS_OBJECT_MEMORY_RAM);
DO_TEST_PARSE_ERROR("numatune-memnode", NONE);
+ DO_TEST_CAPS_LATEST("numatune-memnode-restrictive-mode");
+ DO_TEST_PARSE_ERROR("numatune-memnode-invalid-mode", NONE);
DO_TEST("numatune-memnode-no-memory",
QEMU_CAPS_NUMA,
diff --git a/tests/qemuxml2xmloutdata/numatune-memnode-restrictive-mode.x86_64-latest.xml
b/tests/qemuxml2xmloutdata/numatune-memnode-restrictive-mode.x86_64-latest.xml
new file mode 100644
index 0000000000..e54b2483b1
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/numatune-memnode-restrictive-mode.x86_64-latest.xml
@@ -0,0 +1,40 @@
+<domain type='qemu'>
+ <name>QEMUGuest</name>
+ <uuid>9f4b6512-e73a-4a25-93e8-5307802821ce</uuid>
+ <memory unit='KiB'>24682468</memory>
+ <currentMemory unit='KiB'>24682468</currentMemory>
+ <vcpu placement='static'>32</vcpu>
+ <numatune>
+ <memory mode='restrictive' nodeset='0-7'/>
+ <memnode cellid='0' mode='restrictive' nodeset='3'/>
+ <memnode cellid='2' mode='restrictive'
nodeset='1-2,5,7'/>
+ </numatune>
+ <os>
+ <type arch='x86_64' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu mode='custom' match='exact' check='none'>
+ <model fallback='forbid'>qemu64</model>
+ <numa>
+ <cell id='0' cpus='0' memory='20002'
unit='KiB'/>
+ <cell id='1' cpus='1-27,29' memory='660066'
unit='KiB'/>
+ <cell id='2' cpus='28,30-31' memory='24002400'
unit='KiB'/>
+ </numa>
+ </cpu>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>restart</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/bin/qemu-system-x86_64</emulator>
+ <controller type='usb' index='0' model='piix3-uhci'>
+ <address type='pci' domain='0x0000' bus='0x00'
slot='0x01' function='0x2'/>
+ </controller>
+ <controller type='pci' index='0' model='pci-root'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x00'
slot='0x02' function='0x0'/>
+ </memballoon>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 1968be6782..dea11c2e5f 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1098,6 +1098,7 @@ mymain(void)
DO_TEST("numatune-distances", QEMU_CAPS_NUMA, QEMU_CAPS_NUMA_DIST);
DO_TEST("numatune-no-vcpu", QEMU_CAPS_NUMA);
DO_TEST("numatune-hmat", QEMU_CAPS_NUMA_HMAT,
QEMU_CAPS_OBJECT_MEMORY_RAM);
+ DO_TEST_CAPS_LATEST("numatune-memnode-restrictive-mode");
DO_TEST("bios-nvram", NONE);
DO_TEST("bios-nvram-os-interleave", NONE);
--
2.25.4