qemu-options: tweak to show that CPU count is optional

The initial CPU count number is not required, if any of the topology
options are given, since it can be computed.

Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Yanan Wang <wangyanan55@huawei.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/qemu-options.hx b/qemu-options.hx
index 6b72617844be7babd8f78103932b661ab87699e1..14ff35dd4e36efcaedf43c64aef31a10211c0352 100644 (file)
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -196,7 +196,7 @@ SRST
 ERST
 
 DEF("smp", HAS_ARG, QEMU_OPTION_smp,
-    "-smp [cpus=]n[,maxcpus=cpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]\n"
+    "-smp [[cpus=]n][,maxcpus=cpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]\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"
@@ -206,7 +206,7 @@ DEF("smp", HAS_ARG, QEMU_OPTION_smp,
     "                threads= number of threads on one CPU core\n",
         QEMU_ARCH_ALL)
 SRST
-``-smp [cpus=]n[,maxcpus=maxcpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]``
+``-smp [[cpus=]n][,maxcpus=maxcpus][,sockets=sockets][,dies=dies][,cores=cores][,threads=threads]``
     Simulate an SMP system with 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 cores per die, the