aboutsummaryrefslogtreecommitdiff
path: root/qemu-options.hx
diff options
context:
space:
mode:
authorLike Xu <like.xu@linux.intel.com>2019-06-20 13:45:25 +0800
committerEduardo Habkost <ehabkost@redhat.com>2019-07-05 17:08:04 -0300
commit1b45842203540943b1e22fc30764456c035d8637 (patch)
tree5cb644dd6a1e2db74af664f47a7c6b712d1c5fdf /qemu-options.hx
parent6f479566a87d5087d6f3106b9401e6f53e933309 (diff)
downloadqemu-1b45842203540943b1e22fc30764456c035d8637.zip
qemu-1b45842203540943b1e22fc30764456c035d8637.tar.gz
qemu-1b45842203540943b1e22fc30764456c035d8637.tar.bz2
vl.c: Add -smp, dies=* command line support and update doc
For PC target, users could configure the number of dies per one package via command line with this patch, such as "-smp dies=2,cores=4". The parsing rules of new cpu-topology model obey the same restrictions/logic as the legacy socket/core/thread model especially on missing values computing. Signed-off-by: Like Xu <like.xu@linux.intel.com> Message-Id: <20190620054525.37188-4-like.xu@linux.intel.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx17
1 files changed, 9 insertions, 8 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index af85092..9621e93 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -138,25 +138,26 @@ no incompatible TCG features have been enabled (e.g. icount/replay).
ETEXI
DEF("smp", HAS_ARG, QEMU_OPTION_smp,
- "-smp [cpus=]n[,maxcpus=cpus][,cores=cores][,threads=threads][,sockets=sockets]\n"
+ "-smp [cpus=]n[,maxcpus=cpus][,cores=cores][,threads=threads][,dies=dies][,sockets=sockets]\n"
" set the number of CPUs to 'n' [default=1]\n"
" maxcpus= maximum number of total cpus, including\n"
" offline CPUs for hotplug, etc\n"
- " cores= number of CPU cores on one socket\n"
+ " cores= number of CPU cores on one socket (for PC, it's on one die)\n"
" threads= number of threads on one CPU core\n"
+ " dies= number of CPU dies on one socket (for PC only)\n"
" sockets= number of discrete sockets in the system\n",
QEMU_ARCH_ALL)
STEXI
-@item -smp [cpus=]@var{n}[,cores=@var{cores}][,threads=@var{threads}][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}]
+@item -smp [cpus=]@var{n}[,cores=@var{cores}][,threads=@var{threads}][,dies=dies][,sockets=@var{sockets}][,maxcpus=@var{maxcpus}]
@findex -smp
Simulate an SMP system with @var{n} CPUs. On the PC target, up to 255
CPUs are supported. On Sparc32 target, Linux limits the number of usable CPUs
to 4.
-For the PC target, the number of @var{cores} per socket, the number
-of @var{threads} per cores and the total number of @var{sockets} can be
-specified. Missing values will be computed. If any on the three values is
-given, the total number of CPUs @var{n} can be omitted. @var{maxcpus}
-specifies the maximum number of hotpluggable CPUs.
+For the PC target, the number of @var{cores} per die, the number of @var{threads}
+per cores, the number of @var{dies} per packages and the total number of
+@var{sockets} can be specified. Missing values will be computed.
+If any on the three values is given, the total number of CPUs @var{n} can be omitted.
+@var{maxcpus} specifies the maximum number of hotpluggable CPUs.
ETEXI
DEF("numa", HAS_ARG, QEMU_OPTION_numa,