[RFC 0/2] Do not slow down some AMD devices with coresched

[Joel Fernandes (Google)]

Hi,
Here are 2 patches I am thinking of sending with next coresched series. Let me
know what you think. These are for not slowing down certain AMD devices if they
don't have vulnerabilities that require coresched.

1/2 - keep coresched disabled if device doesn't have vulnerability.
2/2 - add debug information.

In the future, if needed we could add more options to make it possible to
force-enable coresched. But right now I don't see a need for that, till a
usecase arises.

Joel Fernandes (Google) (2):
x86/bugs: Disable coresched on hardware that does not need it
sched/debug: Add debug information about whether coresched is enabled

arch/x86/kernel/cpu/bugs.c | 8 ++++++++
kernel/sched/core.c        | 7 +++++++
kernel/sched/debug.c       | 4 ++++
kernel/sched/sched.h       | 5 +++++
4 files changed, 24 insertions(+)

--
2.29.2.222.g5d2a92d10f8-goog