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>
This commit is contained in:
Daniel P. Berrangé 2021-06-22 15:32:02 +01:00
parent ce8ee7c626
commit b9361bdc1f
1 changed files with 2 additions and 2 deletions

View File

@ -196,7 +196,7 @@ SRST
ERST ERST
DEF("smp", HAS_ARG, QEMU_OPTION_smp, 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" " set the number of CPUs to 'n' [default=1]\n"
" maxcpus= maximum number of total CPUs, including\n" " maxcpus= maximum number of total CPUs, including\n"
" offline CPUs for hotplug, etc\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", " threads= number of threads on one CPU core\n",
QEMU_ARCH_ALL) QEMU_ARCH_ALL)
SRST 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 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 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 CPUs to 4. For the PC target, the number of cores per die, the