[libvirt] [PATCH v2 3/5] qemu: add support for specifying CPU "dies" topology parameter
Daniel P. Berrangé
berrange at redhat.com
Fri Jan 10 11:21:01 UTC 2020
QEMU since 4.1.0 supports the "dies" parameter for -smp
Reviewed-by: Daniel Henrique Barboza <danielhb413 at gmail.com>
Reviewed-by: Jiri Denemark <jdenemar at redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange at redhat.com>
---
src/qemu/qemu_capabilities.c | 2 ++
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_command.c | 9 +++--
.../caps_4.1.0.x86_64.xml | 1 +
.../caps_4.2.0.aarch64.xml | 1 +
.../qemucapabilitiesdata/caps_4.2.0.ppc64.xml | 1 +
.../qemucapabilitiesdata/caps_4.2.0.s390x.xml | 1 +
.../caps_4.2.0.x86_64.xml | 1 +
.../hugepages-nvdimm.x86_64-latest.args | 2 +-
...memory-default-hugepage.x86_64-latest.args | 2 +-
.../memfd-memory-numa.x86_64-latest.args | 2 +-
...y-hotplug-nvdimm-access.x86_64-latest.args | 2 +-
...ry-hotplug-nvdimm-align.x86_64-latest.args | 2 +-
...ry-hotplug-nvdimm-label.x86_64-latest.args | 2 +-
...ory-hotplug-nvdimm-pmem.x86_64-latest.args | 2 +-
...hotplug-nvdimm-readonly.x86_64-latest.args | 2 +-
.../memory-hotplug-nvdimm.x86_64-latest.args | 2 +-
tests/qemuxml2argvdata/smp-dies.args | 29 ++++++++++++++++
tests/qemuxml2argvdata/smp-dies.xml | 33 +++++++++++++++++++
tests/qemuxml2argvtest.c | 1 +
20 files changed, 86 insertions(+), 12 deletions(-)
create mode 100644 tests/qemuxml2argvdata/smp-dies.args
create mode 100644 tests/qemuxml2argvdata/smp-dies.xml
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index da0c7a257f..f13be371fd 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -553,6 +553,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
"blockdev-file-dynamic-auto-read-only",
"savevm-monitor-nodes",
"drive-nvme",
+ "smp-dies",
);
@@ -2985,6 +2986,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
{ "sandbox", "elevateprivileges", QEMU_CAPS_SECCOMP_BLACKLIST },
{ "chardev", "fd", QEMU_CAPS_CHARDEV_FD_PASS },
{ "overcommit", NULL, QEMU_CAPS_OVERCOMMIT },
+ { "smp-opts", "dies", QEMU_CAPS_SMP_DIES },
};
static int
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 193c19fc81..ebcb0d1373 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -534,6 +534,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
QEMU_CAPS_BLOCK_FILE_AUTO_READONLY_DYNAMIC, /* the auto-read-only property of block backends for files is dynamic */
QEMU_CAPS_SAVEVM_MONITOR_NODES, /* 'savevm' handles monitor-owned nodes properly */
QEMU_CAPS_DRIVE_NVME, /* -drive file.driver=nvme */
+ QEMU_CAPS_SMP_DIES, /* -smp dies= */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 6157dc402a..eaed106a6d 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7084,7 +7084,8 @@ qemuBuildTSEGCommandLine(virCommandPtr cmd,
static int
qemuBuildSmpCommandLine(virCommandPtr cmd,
- virDomainDefPtr def)
+ virDomainDefPtr def,
+ virQEMUCapsPtr qemuCaps)
{
g_auto(virBuffer) buf = VIR_BUFFER_INITIALIZER;
unsigned int maxvcpus = virDomainDefGetVcpusMax(def);
@@ -7109,12 +7110,14 @@ qemuBuildSmpCommandLine(virCommandPtr cmd,
/* sockets, cores, and threads are either all zero
* or all non-zero, thus checking one of them is enough */
if (def->cpu && def->cpu->sockets) {
- if (def->cpu->dies != 1) {
+ if (def->cpu->dies != 1 && !virQEMUCapsGet(qemuCaps, QEMU_CAPS_SMP_DIES)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
_("Only 1 die per socket is supported"));
return -1;
}
virBufferAsprintf(&buf, ",sockets=%u", def->cpu->sockets);
+ if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_SMP_DIES))
+ virBufferAsprintf(&buf, ",dies=%u", def->cpu->dies);
virBufferAsprintf(&buf, ",cores=%u", def->cpu->cores);
virBufferAsprintf(&buf, ",threads=%u", def->cpu->threads);
} else {
@@ -9802,7 +9805,7 @@ qemuBuildCommandLine(virQEMUDriverPtr driver,
if (qemuBuildMemCommandLine(cmd, cfg, def, qemuCaps, priv) < 0)
return NULL;
- if (qemuBuildSmpCommandLine(cmd, def) < 0)
+ if (qemuBuildSmpCommandLine(cmd, def, qemuCaps) < 0)
return NULL;
if (qemuBuildIOThreadCommandLine(cmd, def) < 0)
diff --git a/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
index a98945de0e..54b797a86a 100644
--- a/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
@@ -215,6 +215,7 @@
<flag name='ramfb'/>
<flag name='blockdev-file-dynamic-auto-read-only'/>
<flag name='drive-nvme'/>
+ <flag name='smp-dies'/>
<version>4001000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100241</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
index a6469073fd..184bb7ff77 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
@@ -175,6 +175,7 @@
<flag name='blockdev-file-dynamic-auto-read-only'/>
<flag name='savevm-monitor-nodes'/>
<flag name='drive-nvme'/>
+ <flag name='smp-dies'/>
<version>4001050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>61700242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
index ee9fb23640..7c62546d74 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
@@ -176,6 +176,7 @@
<flag name='machine.pseries.cap-ccf-assist'/>
<flag name='blockdev-file-dynamic-auto-read-only'/>
<flag name='drive-nvme'/>
+ <flag name='smp-dies'/>
<version>4001050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>42900242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml b/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
index fdf5cb4ce9..c8746f05ef 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
@@ -135,6 +135,7 @@
<flag name='query-cpu-model-comparison'/>
<flag name='blockdev-file-dynamic-auto-read-only'/>
<flag name='drive-nvme'/>
+ <flag name='smp-dies'/>
<version>4001050</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>39100242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
index 4857e2f5a5..afd59a269d 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
@@ -218,6 +218,7 @@
<flag name='blockdev-file-dynamic-auto-read-only'/>
<flag name='savevm-monitor-nodes'/>
<flag name='drive-nvme'/>
+ <flag name='smp-dies'/>
<version>4002000</version>
<kvmVersion>0</kvmVersion>
<microcodeVersion>43100242</microcodeVersion>
diff --git a/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args b/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
index 9056e56cb7..0d795dca91 100644
--- a/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=1048576k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-object memory-backend-file,id=ram-node0,prealloc=yes,\
mem-path=/dev/hugepages2M/libvirt/qemu/-1-QEMUGuest1,share=yes,size=1073741824 \
-numa node,nodeid=0,cpus=0-1,memdev=ram-node0 \
diff --git a/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args b/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
index 998c9f98bd..a655fb1f7c 100644
--- a/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
@@ -16,7 +16,7 @@ file=/tmp/lib/domain--1-instance-00000092/master-key.aes \
-m 14336 \
-mem-prealloc \
-overcommit mem-lock=off \
--smp 8,sockets=1,cores=8,threads=1 \
+-smp 8,sockets=1,dies=1,cores=8,threads=1 \
-object memory-backend-memfd,id=ram-node0,hugetlb=yes,hugetlbsize=2097152,\
share=yes,size=15032385536,host-nodes=3,policy=preferred \
-numa node,nodeid=0,cpus=0-7,memdev=ram-node0 \
diff --git a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
index 998c9f98bd..a655fb1f7c 100644
--- a/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
@@ -16,7 +16,7 @@ file=/tmp/lib/domain--1-instance-00000092/master-key.aes \
-m 14336 \
-mem-prealloc \
-overcommit mem-lock=off \
--smp 8,sockets=1,cores=8,threads=1 \
+-smp 8,sockets=1,dies=1,cores=8,threads=1 \
-object memory-backend-memfd,id=ram-node0,hugetlb=yes,hugetlbsize=2097152,\
share=yes,size=15032385536,host-nodes=3,policy=preferred \
-numa node,nodeid=0,cpus=0-7,memdev=ram-node0 \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
index beac9ab22a..c8a6ec5755 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=219136k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=214 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
share=no,size=536870912 \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
index 3e599098f0..60e9e80039 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=219136k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=214 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
share=no,size=536870912,align=2097152 \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
index 05a473dbcc..8c5e483cbb 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=219136k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=214 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
share=no,size=536870912 \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
index c3554ac101..7f77ab9fce 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=219136k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=214 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
share=no,size=536870912,pmem=on \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
index e1d3fc57a4..631835a380 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=219136k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=214 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
share=no,size=536870912 \
diff --git a/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args b/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
index dc6ddd3a0e..48221a5526 100644
--- a/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
@@ -15,7 +15,7 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
-machine pc,accel=tcg,usb=off,dump-guest-core=off,nvdimm=on \
-m size=1048576k,slots=16,maxmem=1099511627776k \
-overcommit mem-lock=off \
--smp 2,sockets=2,cores=1,threads=1 \
+-smp 2,sockets=2,dies=1,cores=1,threads=1 \
-numa node,nodeid=0,cpus=0-1,mem=1024 \
-object memory-backend-file,id=memnvdimm0,prealloc=yes,mem-path=/tmp/nvdimm,\
size=536870912 \
diff --git a/tests/qemuxml2argvdata/smp-dies.args b/tests/qemuxml2argvdata/smp-dies.args
new file mode 100644
index 0000000000..632e9d8e34
--- /dev/null
+++ b/tests/qemuxml2argvdata/smp-dies.args
@@ -0,0 +1,29 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-i386 \
+-name QEMUGuest1 \
+-S \
+-machine pc,accel=tcg,usb=off,dump-guest-core=off \
+-m 214 \
+-realtime mlock=off \
+-smp 1,maxcpus=4,sockets=2,dies=2,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,path=/tmp/lib/domain--1-QEMUGuest1/monitor.sock,\
+server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-no-acpi \
+-usb \
+-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-ide0-0-0 \
+-device ide-hd,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=1
diff --git a/tests/qemuxml2argvdata/smp-dies.xml b/tests/qemuxml2argvdata/smp-dies.xml
new file mode 100644
index 0000000000..caadaef8b5
--- /dev/null
+++ b/tests/qemuxml2argvdata/smp-dies.xml
@@ -0,0 +1,33 @@
+<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' current='1'>4</vcpu>
+ <os>
+ <type arch='i686' machine='pc'>hvm</type>
+ <boot dev='hd'/>
+ </os>
+ <cpu>
+ <topology sockets='2' dies='2' cores='1' threads='1'/>
+ </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-i386</emulator>
+ <disk type='block' device='disk'>
+ <driver name='qemu' type='raw'/>
+ <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'/>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <memballoon model='none'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 8af2ba38d3..c2a90c109e 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1689,6 +1689,7 @@ mymain(void)
DO_TEST("qemu-ns-alt", NONE);
DO_TEST("smp", NONE);
+ DO_TEST("smp-dies", QEMU_CAPS_SMP_DIES);
DO_TEST("iothreads", QEMU_CAPS_OBJECT_IOTHREAD);
DO_TEST("iothreads-ids", QEMU_CAPS_OBJECT_IOTHREAD);
--
2.23.0
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