qemu-system-x86_64 -machine pc,nvdimm -m 2G,slots=4,maxmem=16G -enable-kvm -monitor stdio -object memory-backend-file,id=mem1,share=on,mem-path=/tmp/foo,size=1G -device nvdimm,id=nvdimm1,memdev=mem1
HMP info mtree command reflects the flag with "nv-" prefix on memory type:
(qemu) info mtree
0000000100000000-
000000013fffffff (prio 0, nv-i/o): alias nvdimm-memory @/objects/mem1
0000000000000000-
000000003fffffff
(qemu) info mtree -f
0000000100000000-
000000013fffffff (prio 0, nv-ram): /objects/mem1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <
20181003114454.5662-3-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
nvdimm->nvdimm_mr = g_new(MemoryRegion, 1);
memory_region_init_alias(nvdimm->nvdimm_mr, OBJECT(dimm),
"nvdimm-memory", mr, 0, pmem_size);
+ memory_region_set_nonvolatile(nvdimm->nvdimm_mr, true);
nvdimm->nvdimm_mr->align = align;
}