nvdimm: make persistence option symbolic

Replace the "nvdimm-cap" option which took numeric arguments such as "2"
with a more user friendly "nvdimm-persistence" option which takes symbolic
arguments "cpu" or "mem-ctrl".

Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Suggested-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/include/hw/mem/nvdimm.h b/include/hw/mem/nvdimm.h
index 3c82751bab..9340631cfc 100644
--- a/include/hw/mem/nvdimm.h
+++ b/include/hw/mem/nvdimm.h
@@ -138,7 +138,8 @@ struct AcpiNVDIMMState {
     /*
      * Platform capabilities, section 5.2.25.9 of ACPI 6.2 Errata A
      */
-    int32_t capabilities;
+    int32_t persistence;
+    char    *persistence_string;
 };
 typedef struct AcpiNVDIMMState AcpiNVDIMMState;