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>

1 files changed, 3 insertions, 0 deletions

diff --git a/vl.c b/vl.c
index 96d2456f70..280e709e2c 100644
--- a/vl.c
+++ b/vl.c
@@ -1232,6 +1232,9 @@ static QemuOptsList qemu_smp_opts = {
             .name = "sockets",
             .type = QEMU_OPT_NUMBER,
         }, {
+            .name = "dies",
+            .type = QEMU_OPT_NUMBER,
+        }, {
             .name = "cores",
             .type = QEMU_OPT_NUMBER,
         }, {