Commit Graph

207 Commits

Author SHA1 Message Date
Martin Stein
4697e0e07d hw: make bootstrap save against multiple calls
In programs with dynamic linker, _main and thus also platform_main_bootstrap
are called twice. By now, platform_main_bootstrap tried to always access the
startup message in the UTCB of the main thread that gets overridden till the
second call.

fix #967
2013-11-26 14:32:07 +01:00
Martin Stein
5b90113d86 hw: no default values for kernel-call args
ref #967
2013-11-26 14:32:07 +01:00
Martin Stein
07aa56fffb hw: re-add priority down-scaling
This is a follow-up commit for "hw: beautify scheduling-priority code".

ref #960
2013-11-25 09:50:27 +01:00
Norman Feske
1d5c11c7af rpi: Allow the access to videocore memory as MMIO 2013-11-25 09:46:09 +01:00
Norman Feske
62019be6d3 rpi: Change link address to support larger images 2013-11-25 09:46:09 +01:00
Norman Feske
5b5ea76039 hw_rpi: Hand out IRQ for USB host controller 2013-11-25 09:46:08 +01:00
Stefan Kalkowski
ae5e5cefc1 hw: initialize sctrl register appropriately
Fixes #916
2013-11-25 09:46:08 +01:00
Stefan Kalkowski
6f136bef7a hw: add TrustZone support for i.MX53 (ref #954) 2013-11-25 09:46:08 +01:00
Stefan Kalkowski
238430a362 hw: save MMU registers for TrustZone VMM (ref #954)
When saving/resuming translation table base registers, and data fault register
a VMM is able to translate the VM's virtual addresses, and to analyse aborts
it has generated.
2013-11-25 09:46:08 +01:00
Martin Stein
b694045bd9 hw: get rid of Kernel::current_thread_id
Every thread receives a startup message from its creator through the initial
state of its userland thread-context. The thread-startup code remembers the
kernel name of the new thread by reading this message before the userland
thread-context gets polluted. This way, Kernel::current_thread_id becomes
unnecessary.

fix #953
2013-11-25 09:46:08 +01:00
Martin Stein
b5e92653bf hw: adjust expected serial start-message in run
ref #953
2013-11-25 09:46:08 +01:00
Martin Stein
fde150b052 hw: rename delete_thread in kill_thread
ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
f054b70e33 hw: spelling fix in kernel/thread.cc
ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
84e05e0653 hw: don't provide thread base via platform thread
ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
99c649c42f hw: simplify Kernel::new_thread
Don't set priority and label in platform thread and then communicate this
core object via Kernel::new_thread but communicate priority and label directly.
This way kernel doesn't need to know anymore what a platform thread is.

ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
210216e5e1 hw: simplify Kernel::start_thread
Instead of writing initial thread context to the platform-thread members
and then communicating this core object to kernel, core calls
Kernel::access_thread_regs first to initialize thread context and then
Kernel::start_thread without a platform-thread pointer. This way
the frontend as well as the backend of Kernel::start_thread loose
complexity and it is a first step to remove platform thread from the
vocabulary of the kernel.

ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
77f55232fd hw: remove Kernel::get_thread
ref #953
2013-11-25 09:45:31 +01:00
Martin Stein
3b2590b65a hw: identify core threads through stack pointer
ref #953
2013-11-25 09:45:30 +01:00
Martin Stein
87da21d967 hw: use platform-thread pointer as pager badge
ref #953
2013-11-25 09:45:30 +01:00
Martin Stein
e0419b2401 hw: clearer naming scheme in kernel API
Rename kernel syscall in kernel call and the kernel-API
files in kernel/interface* .

ref #953
2013-11-25 09:45:30 +01:00
Alexander Boettcher
a6af6c80ab base: count caps replied by a rpc function
Issue #905
2013-11-18 11:01:45 +01:00
Martin Stein
e450602196 hw: missing initialization in signal handler
fix #951
2013-11-18 11:01:45 +01:00
Martin Stein
653e14b74f hw: adjust SIGNAL SLAB sizes to new conditions
fix #950
2013-11-18 11:01:45 +01:00
Martin Stein
909ab8dcd0 hw: communicate page faults via signals
Enable routing of thread events to signal contexts via
Kernel::route_thread_event.

Replace Kernel::set_pager by Kernel::route_thread_event.

In base-hw a pager object is a signal context and a pager activation
is a signal receiver. If a thread wants to start communicating its page
faults via a pager object, the thread calls Kernel::route_thread_event with
its thread ID, event ID "FAULT", and the signal context ID of the pager object.
If a pager activation wants to start handling page faults of a pager object,
the pager activation assigns the corresponding signal context to its signal
receiver. If a pager activation wants to stop handling page faults of a pager
object, the pager activation dissolves the corresponding signal context from
its signal receiver. If a thread wants to start communicating its page faults
via a pager object, the thread calls Kernel::route_thread_event with its
thread ID, event ID "FAULT", and the invalid signal context ID.

Remove Kernel::resume_faulter.

Move all page fault related code from generic kernel sources to CPU
specific cpu_support.h and cpu_support.cc.

fix #935
2013-11-14 19:57:31 +01:00
Martin Stein
ba52529bd6 hw: beautify scheduling-priority code
ref #935
2013-11-14 19:57:31 +01:00
Martin Stein
da49f86f5b hw: provide placement via dedicated header
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
15a56bd682 hw: provide and use syscall access_thread_regs
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
20e91d0b60 base: individual implementations of pager-object
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
d24ed9783b hw: get rid of kernel_support.cc
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
f4b46fe55c hw: move kernel.cc to core/kernel/
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
9c1ae1f149 hw: no overloading of Signal_context constructor
ref #935
2013-11-14 19:57:30 +01:00
Martin Stein
47744e0019 hw: handle interrupts via signals
fix #874
2013-11-14 19:57:30 +01:00
Martin Stein
002a5b8978 hw: distinct pagefault and IPC message type
ref #874
2013-11-14 19:56:39 +01:00
Martin Stein
6f935af278 hw: communicate message type through UTCB
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
1e7eb4512e hw: manage UTCB through use-case specific structs
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
96bbca6191 hw: send reply size & receive request size by UTCB
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
45d37e275d hw: send request size through UTCB
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
6b9376bb01 hw: clean up interface of Kernel::Thread
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
ffb26eb501 hw: make syscall backend private to Kernel::Thread
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
5cd2f6ee0b hw: make Kernel::mtc() global
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
0bb6ffa98d hw: header and source file for Kernel::Vm
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
22d61c241e hw: remove useless function handle_invalid_excpt
ref #874
2013-11-14 19:56:38 +01:00
Martin Stein
059aba0916 hw: remove unused function handle_invalid_syscall
ref #874
2013-11-14 19:56:38 +01:00
Stefan Kalkowski
265ec48c20 hw: implement priority-based scheduling (fix #945) 2013-11-12 15:01:54 +01:00
Stefan Kalkowski
c95f11418a i.MX53: fit into u-boot's memory layout on tablet
Fixes #917
2013-10-22 08:00:14 +02:00
Martin Stein
c56927b76e hw: differ ID allocators even with same size
Previously, if two ID allocators for different kernel objects had the
same size, the kernel-object framework managed both objects types
through the same allocator instance. This is caused by the use of
unsynchronized singletons in the accessor functions and can be avoided
by creating new types through inheritance instead of using typedefs.
Anyways, this fix is a little bit ugly and should replaced by avoiding
the use of unsynchronized singletons in the future.

fix #906
2013-10-22 08:00:14 +02:00
Josef Söntgen
afdabe9df8 hw: enable performance counter on ARMv6 and ARMv7
To actually enable the performance counter 'perf_counter' has to be
added to the SPECS make variable.

Fixes #893.
2013-10-17 11:05:53 +02:00
Martin Stein
c117516296 hw: relax signal limits for resource_request test
ref #912
2013-10-16 09:26:11 +02:00
Martin Stein
f88fd35f22 hw: avoid upgrade need of 8192 in signal session
ref #912
2013-10-16 09:26:11 +02:00
Martin Stein
b5c6f2c260 hw: avoid generic exceptions in signal framework
ref #912
2013-10-16 09:26:11 +02:00