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qemu: add support for specifying CPU "dies" topology parameter

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QEMU since 4.1.0 supports the "dies" parameter for -smp

Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Daniel P. Berrangé 2019-12-16 15:28:09 +00:00
parent 2ce9474c2a
commit 4cf8dd0c57
20 changed files with 86 additions and 12 deletions
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2
src/qemu/qemu_capabilities.c
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@ -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

1
src/qemu/qemu_capabilities.h
View File

@ -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;

9
src/qemu/qemu_command.c
View File

@ -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)

1
tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
View File

@ -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>

1
tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
View File

@ -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>

1
tests/qemucapabilitiesdata/caps_4.2.0.ppc64.xml
View File

@ -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>

1
tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
View File

@ -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>

1
tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
View File

@ -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>

2
tests/qemuxml2argvdata/hugepages-nvdimm.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memfd-memory-default-hugepage.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memfd-memory-numa.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm-access.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm-align.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm-label.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm-pmem.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm-readonly.x86_64-latest.args
View File

@ -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 \

2
tests/qemuxml2argvdata/memory-hotplug-nvdimm.x86_64-latest.args
View File

@ -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 \

29
tests/qemuxml2argvdata/smp-dies.args Normal file
View File

@ -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

33
tests/qemuxml2argvdata/smp-dies.xml Normal file
View File

@ -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>

1
tests/qemuxml2argvtest.c
View File

@ -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);