Alexander Boettcher 916bd88e5e base: extend PD session by system_control_cap
Per Affinity::Location a system control cap can be requested. The capability
provides an RPC interface to request and set Cpu_state, as provided by the
former Pd::managing_system(Cpu_state) method. Invocation of those system
control capabilities then *can* (see below) be executed on the desired CPU
as described by Affinity::Location.

The system control cap will be invalid for kernels that don't support
system_control/managing_system functionality at all.

The system control cap will be ever by the same, e.g. ignoring the
Affinity::Location parameter, if the used kernel doesn't support or doesn't
require the feature to execute the system control per CPU.

The commit is a preparation step to add guarded and selective x86 MSR
access per CPU.

Fixes #5009
2023-10-04 13:22:07 +02:00
..
2023-08-23 13:46:37 +02:00
2022-05-25 12:19:31 +02:00
2017-05-31 13:16:21 +02:00

This source-code repository contains genuine low-level OS components and
interfaces of Genode. It solely depends on the framework's base API.