Make naming across architectures coherent by renaming Vm_state to
Vcpu_state, to reflect that it contains the state of a Vcpu and not that
of an entire VM.
Ref #4968
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
The timer used to read the counter first and then the IRQ status. This
could cause a non-wrapped counter value to be considered a wrapped
counter value, leading to bogus timeout durations.
This commit fixes the bug and documents the used timer mode in the
driver in order to make future debugging of the driver easier.
Ref #4959
By splitting the 'init_capability_slab()' implementation to a separate
compilation unit 'capability_slab.cc', base-hw no longer needs a
customized version of 'lib/base/platform.cc'.
Related to issue #4784
This patch replaces the internal use 'env_deprecated()' from the
implementation of the thread API in the base library. It also
replaces the global accessor 'main_thread_cap' by the explicit
propagation of the main-thread's capability to the single point of
use via a new 'init_thread_bootstap' function.
Issue #4784
The change "core: allow offset-attached managed dataspaces" addressed a
corner case of the use of nested region maps. Apparently, this change
negatively affects other scenarios (tool_chain_auto).
In order to confidently cover all the differnt situations, this patch
reworks the page-fault resolution code for improved clarity and safety,
by introducing dedicated result types, reducing the use of basic types,
choosing expressive names, and fostering constness.
It also introduces a number of 'print' hooks that greatly ease manual
instrumentation and streamlines the error messages printed by core.
Those messages no longer appear when a user-level page-fault handler
is reistered for the faulted-at region map. So the monitor component
produces less noise on the attempt to dump non-existing memory.
Issue #4917Fixes#4920
The new 'init_platform' function performs the platform-specific
component-local low-level initialization. It allows for the
differentiation between core and regular components as well as
kernel-dependent peculiarities.
This patch introduces a consistent notion of a 'Platform'. Within core,
the 'Platform' contains the kernel-specific initialization. Outside
core, the platform sets up the interplay with the parent component. In
all cases, the platform is constructed while running on the initial
stack.
Issue #4784
The namespace draws a clear line between the base library and the core
component.
It is declared at the new core-local header <types.h>, which is expected
to be included by all code of the core component. It is thereby a
natural place for kernel-agnostic general types like commonly used C++
utilities.
Fixes#4777
Set wakeup pointer in FADT/FACS tables and prepare/place ACPI resume code
at application processors (AP) 16-bit entry. Exclude memory used for AP resume
from RAM range to avoid usage by Genode core in allocators.
Issue #4669
The CPUs are woken all at once and up to now the IDs are assigned depending
on the arrival order, which is unfortunate for the resume case. Keep track
of once assigned IDs for CPUs, so that on resume the very same CPU id is given.
The APIC id is guaranteed to be fixed per CPU on suspend, but unfortunately
not dense packed.
Issue #4669
The ACPI table FACS and FADT are required to support ACPI suspend/resume. The
commits add the lookup of the ACPI table in bootstrap and the general usage
of the ACPI registers via the MMIO framework.
Issue #4669
Add explicit init() to Timer infrastructure to re-initialize the hardware
based on the parameters given during constructing time of the timer object.
Issue #4669
On resume the CPU state must be re-initialized, since all CPUs have been
potentially off (depending on sleep form) and lost state. Handle the halt
and suspend state explicitly by an extra Job implementation which can be
executed without holding the global kernel lock.
Issue #4669
Instead of re-using the register values found in HCR_EL2 and CPTR_EL2
and setting single bits within them, define the complete content to
prevent inconsistent hardware/hypervisor state.
Ref genodelabs/genode#4759
