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vl.c: extend -m option to support options for memory hotplug

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Add following parameters:
  "slots" - total number of hotplug memory slots
  "maxmem" - maximum possible memory

"slots" and "maxmem" should go in pair and "maxmem" should be greater
than "mem" for memory hotplug to be enabled.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

MST: fix build on 32 bit
This commit is contained in:
Igor Mammedov 2014-06-02 15:25:02 +02:00 • committed by Michael S. Tsirkin
parent 1f07048933
commit c270fb9eff
3 changed files with 59 additions and 3 deletions
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9
qemu-options.hx
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@ -210,17 +210,20 @@ use is discouraged as it may be removed from future versions.
ETEXI
DEF("m", HAS_ARG, QEMU_OPTION_m,
"-m [size=]megs\n"
"-m[emory] [size=]megs[,slots=n,maxmem=size]\n"
" configure guest RAM\n"
" size: initial amount of guest memory (default: "
stringify(DEFAULT_RAM_SIZE) "MiB)\n",
stringify(DEFAULT_RAM_SIZE) "MiB)\n"
" slots: number of hotplug slots (default: none)\n"
" maxmem: maximum amount of guest memory (default: none)\n",
QEMU_ARCH_ALL)
STEXI
@item -m [size=]@var{megs}
@findex -m
Set virtual RAM size to @var{megs} megabytes. Default is 128 MiB. Optionally,
a suffix of ``M'' or ``G'' can be used to signify a value in megabytes or
gigabytes respectively.
gigabytes respectively. Optional pair @var{slots}, @var{maxmem} could be used
to set amount of hotluggable memory slots and possible maximum amount of memory.
ETEXI
DEF("mem-path", HAS_ARG, QEMU_OPTION_mempath,