motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 09:43:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

nvdimm: check -object memory-backend-file, readonly=on option

Browse source 
Check that -device nvdimm,unarmed=on is used when -object
memory-backend-file,readonly=on and document that -device
nvdimm,unarmed=on|off controls whether the NVDIMM appears read-only to
the guest.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <20210104171320.575838-4-stefanha@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2021-01-04 17:13:20 +00:00 • committed by Eduardo Habkost
parent 86635aa4e9
commit dbd730e859
2 changed files with 26 additions and 7 deletions
Download patch file Download diff file Expand all files Collapse all files

9
hw/mem/nvdimm.c
View file

@ -146,6 +146,15 @@ static void nvdimm_prepare_memory_region(NVDIMMDevice *nvdimm, Error **errp)
return;
}
if (!nvdimm->unarmed && memory_region_is_rom(mr)) {
HostMemoryBackend *hostmem = dimm->hostmem;
error_setg(errp, "'unarmed' property must be off since memdev %s "
"is read-only",
object_get_canonical_path_component(OBJECT(hostmem)));
return;
}
nvdimm->nvdimm_mr = g_new(MemoryRegion, 1);
memory_region_init_alias(nvdimm->nvdimm_mr, OBJECT(dimm),
"nvdimm-memory", mr, 0, pmem_size);