13 Feb
2025
13 Feb
'25
3 p.m.
On 2/13/25 00:04, John Hubbard wrote:
- I'm unable to reproduce what you saw, because in ALL cases (before
or after the commit, and with or without a revert), I get the same results on my Intel test machine:
$ ./protection_keys_64 has pkeys: 0 running PKEY tests for unsupported CPU/OS
...so that's why I'm attaching a patch, in case you can verify that a revert fixes it.
The revert fixes it for me, thanks!
You probably just have hardware without pkey support. This isn't 100% definitive, but you can check:
cat /proc/cpuinfo | grep ospke
If that doesn't match the "flags" line, then your hardware doesn't have support in the first place and the message is totally expected.