On 18.10.22 18:49, Michael S. Tsirkin wrote:
On Tue, Oct 18, 2022 at 06:17:55PM +0200, Philippe Mathieu-Daudé wrote:
On 18/10/22 17:25, Julia Suvorova wrote:
In the ACPI specification [1], the 'unarmed' bit is set when a device
cannot accept a persistent write. This means that when a memdev is
read-only, the 'unarmed' flag must be turned on. The logic is correct,
just changing the error message.

[1] ACPI NFIT NVDIMM Region Mapping Structure "NVDIMM State Flags" Bit 3


Fixes: dbd730e859 ("nvdimm: check -object memory-backend-file, readonly=on
option")

The documentation in 'docs/nvdimm.txt' is correct :)

Signed-off-by: Julia Suvorova <jus...@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefa...@redhat.com>
---
   hw/mem/nvdimm.c | 2 +-
   1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
index 7c7d777781..bfb76818c1 100644
--- a/hw/mem/nvdimm.c
+++ b/hw/mem/nvdimm.c
@@ -149,7 +149,7 @@ static void nvdimm_prepare_memory_region(NVDIMMDevice 
*nvdimm, Error **errp)
       if (!nvdimm->unarmed && memory_region_is_rom(mr)) {
           HostMemoryBackend *hostmem = dimm->hostmem;
-        error_setg(errp, "'unarmed' property must be off since memdev %s "
+        error_setg(errp, "'unarmed' property must be on since memdev %s "

If you ever respin please quote 'on' for readability.


Yes make sense. Julia could you change this pls?

Acked-by: David Hildenbrand <da...@redhat.com>

I can pick this up once resent. I'll most probably send a merge request by the end of next week.

--
Thanks,

David / dhildenb


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