Messages in this thread | | | Subject | Re: [PATCH v8 -tip 13/26] kernel/entry: Add support for core-wide protection of kernel-mode | From | Randy Dunlap <> | Date | Mon, 19 Oct 2020 20:41:04 -0700 |
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On 10/19/20 6:43 PM, Joel Fernandes (Google) wrote: > > --- > .../admin-guide/kernel-parameters.txt | 7 + > include/linux/entry-common.h | 2 +- > include/linux/sched.h | 12 + > kernel/entry/common.c | 25 +- > kernel/sched/core.c | 229 ++++++++++++++++++ > kernel/sched/sched.h | 3 + > 6 files changed, 275 insertions(+), 3 deletions(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 3236427e2215..48567110f709 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -4678,6 +4678,13 @@ > > sbni= [NET] Granch SBNI12 leased line adapter > > + sched_core_protect_kernel=
Needs a list of possible values after '=', along with telling us what the default value/setting is.
> + [SCHED_CORE] Pause SMT siblings of a core running in > + user mode, if at least one of the siblings of the core > + is running in kernel mode. This is to guarantee that > + kernel data is not leaked to tasks which are not trusted > + by the kernel. > +
thanks.
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