On 8/26/2024 11:35 PM, Kevin Loughlin wrote:
How can I test this? Can I test it with virtio-pmem device?
Correct. Assuming the CoCo guest accesses some virtio-pmem device in
devdax mode, mmapping() this virtio-pmem device's memory region
results in the guest and host reading the same (plaintext) values from
the region.
I tried to test the daxdev with virtio-pmem but getting the below error
(just tried without this patch)
root@ubuntu:/home/amd# ndctl list -N
{
"dev":"namespace0.0",
"mode":"devdax",
"map":"dev",
"size":1054867456,
"uuid":"c8b15ce6-0c8f-4a1a-ada6-b19a90bdf1bb",
"numa_node":0
}
root@ubuntu:cat /dev/zero | daxio --output=/dev/namespace0.0
daxio: neither input or output is device dax
Could you please share the instructions (to test with virtio-pmem or
Qemu). If not, still okay.
Thanks,
Pankaj
Best regards,
Pankaj
