Commit Graph

195 Commits

Author SHA1 Message Date
Alexander Boettcher
b9b8114a4e nova: support fixed ACPI event delivery by kernel
Issue #1962
2016-05-26 15:54:13 +02:00
Christian Prochaska
2cde1d36c1 base: changes for GDB monitor
- add a new function 'binary_ready_hook_for_gdb()' in ldso. GDB can set a
  breakpoint at this function to know when ldso has loaded the binary
  into memory.
- get the thread state from the NOVA kernel immediately on 'pause()'

Fixes #1968
2016-05-23 15:52:49 +02:00
Norman Feske
807be83b1b Remove inconsistent use of 'is_' prefix
Fixes #1963
2016-05-23 15:52:39 +02:00
Norman Feske
a99989af40 Separation of thread operations from CPU session
This patch moves the thread operations from the 'Cpu_session'
to the 'Cpu_thread' interface.

A noteworthy semantic change is the meaning of the former
'exception_handler' function, which used to define both, the default
exception handler or a thread-specific signal handler. Now, the
'Cpu_session::exception_sigh' function defines the CPU-session-wide
default handler whereas the 'Cpu_thread::exception_sigh' function
defines the thread-specific one.

To retain the ability to create 'Child' objects without invoking a
capability, the child's initial thread must be created outside the
'Child::Process'. It is now represented by the 'Child::Initial_thread',
which is passed as argument to the 'Child' constructor.

Fixes #1939
2016-05-23 15:52:39 +02:00
Alexander Boettcher
bb3e9300f6 nova: disable ACPI GPE events during kernel boot
Issue #1962
2016-05-23 15:52:38 +02:00
Alexander Boettcher
dccad4c526 nova: kernel support for more than 4096 processes
Fixes #1951
2016-05-23 15:52:36 +02:00
Alexander Boettcher
77c4510787 nova: support dropping caps just locally
without revocation of all subsequent delegations.

Fixes #1950
2016-05-23 15:52:36 +02:00
Norman Feske
fd401bdf53 Thread API cleanup
This patch cleans up the thread API and comes with the following
noteworthy changes:

- Introduced Cpu_session::Weight type that replaces a formerly used
  plain integer value to prevent the accidental mix-up of
  arguments.
- The enum definition of Cpu_session::DEFAULT_WEIGHT moved to
  Cpu_session::Weight::DEFAULT_WEIGHT
- New Thread constructor that takes a 'Env &' as first argument.
  The original constructors are now marked as deprecated. For the
  common use case where the default 'Weight' and 'Affinity' are
  used, a shortcut is provided. In the long term, those two
  constructors should be the only ones to remain.
- The former 'Thread<>' class template has been renamed to
  'Thread_deprecated'.
- The former 'Thread_base' class is now called 'Thread'.
- The new 'name()' accessor returns the thread's name as 'Name'
  object as centrally defined via 'Cpu_session::Name'. It is meant to
  replace the old-fashioned 'name' method that takes a buffer and size
  as arguments.
- Adaptation of the thread test to the new API

Issue #1954
2016-05-23 15:49:55 +02:00
Norman Feske
1f395ae780 base: new interface for textual output
Issue #1942
2016-05-09 13:25:01 +02:00
Norman Feske
3bceefc9cf Omit superfluous use of "CAP"/"SIGNAL" services
The functionality of the former "CAP" and "SIGNAL" services is now
provided by core's "PD" service.
2016-05-09 13:24:51 +02:00
Norman Feske
40a5af42eb Clean up base-library structure
This patch moves the base library from src/base to src/lib/base,
flattens the library-internal directory structure, and moves the common
parts of the library-description files to base/lib/mk/base.inc and
base/lib/mk/base-common.inc.

Furthermore, the patch fixes a few cosmetic issues (whitespace and
comments only) that I encountered while browsing the result.

Fixes #1952
2016-05-09 13:24:11 +02:00
Norman Feske
7274ca997d Remove Genode::Process from API
This patch makes the former 'Process' class private to the 'Child'
class and changes the constructor of the 'Child' in a way that
principally enables the implementation of single-threaded runtime
environments that virtualize the CPU, PD, and RAM services. The
new interfaces has become free from side effects. I.e., instead
of implicitly using Genode::env()->rm_session(), it takes the reference
to the local region map as argument. Also, the handling of the dynamic
linker via global variables is gone. Now, the linker binary must be
provided as constructor argument.

Fixes #1949
2016-05-09 13:10:52 +02:00
Norman Feske
b49e588c1c Assign threads to PD at its creation time
This patch replaces the former 'Pd_session::bind_thread' function by a
PD-capability argument of the 'Cpu_session::create_thread' function, and
removes the ancient thread-start protocol via 'Rm_session::add_client' and
'Cpu_session::set_pager'. Threads are now bound to PDs at their creation
time and implicitly paged according to the address space of the PD.

Note the API change:

This patch changes the signature of the 'Child' and 'Process' constructors.
There is a new 'address_space' argument, which represents the region map
representing the child's address space. It is supplied separately to the
PD session capability (which principally can be invoked to obtain the
PD's address space) to allow the population of the address space
without relying on an 'Pd_session::address_space' RPC call.
Furthermore, a new (optional) env_pd argument allows the explicit
overriding of the PD capability handed out to the child as part of its
environment. It can be used to intercept the interaction of the child
with its PD session at core. This is used by Noux.

Issue #1938
2016-05-09 13:10:52 +02:00
Norman Feske
511acad507 Consolidate RM service into PD session
This patch integrates three region maps into each PD session to
reduce the session overhead and to simplify the PD creation procedure.
Please refer to the issue cited below for an elaborative discussion.

Note the API change:

With this patch, the semantics of core's RM service have changed. Now,
the service is merely a tool for creating and destroying managed
dataspaces, which are rarely needed. Regular components no longer need a
RM session. For this reason, the corresponding argument for the
'Process' and 'Child' constructors has been removed.

The former interface of the 'Rm_session' is not named 'Region_map'. As a
minor refinement, the 'Fault_type' enum values are now part of the
'Region_map::State' struct.

Issue #1938
2016-05-09 13:10:51 +02:00
Norman Feske
e20bbe7002 base: remove integer return codes from PD-session
The return code of assign_parent remained unused. So this patch
removes it.

The bind_thread function fails only due to platform-specific limitations
such as the exhaustion of ID name spaces, which cannot be sensibly
handled by the PD-session client. If occurred, such conditions used to
be reflected by integer return codes that were used for diagnostic
messages only. The patch removes the return codes and leaves the
diagnostic output to core.

Fixes #1842
2016-05-09 13:09:56 +02:00
Alexander Boettcher
1fc707d9dc nova: fix copy-paste bug in oom code
Fixes #1944
2016-05-09 13:09:54 +02:00
Norman Feske
f186587cab Unify ipc_msgbuf.h across base platforms
Besides unifying the Msgbuf_base classes across all platforms, this
patch merges the Ipc_marshaller functionality into Msgbuf_base, which
leads to several further simplifications. For example, this patch
eventually moves the Native_connection_state and removes all state
from the former Ipc_server to the actual server loop, which not only
makes the flow of control and information much more obvious, but is
also more flexible. I.e., on NOVA, we don't even have the notion of
reply-and-wait. Now, we are no longer forced to pretend otherwise.

Issue #1832
2016-04-25 10:47:59 +02:00
Norman Feske
0c299c5e08 base: separate native CPU from CPU session
This patch unifies the CPU session interface across all platforms. The
former differences are moved to respective "native-CPU" interfaces.

NOVA is not covered by the patch and still relies on a custom version of
the core-internal 'cpu_session_component.h'. However, this will soon be
removed once the ongoing rework of pause/single-step on NOVA is
completed.

Fixes #1922
2016-04-25 10:47:57 +02:00
Norman Feske
051e84c4b4 Move server API concept to base framework
This commit introduces the new `Component` interface in the form of the
headers base/component.h and base/entrypoint.h. The os/server.h API
has become merely a compatibilty wrapper and will eventually be removed.
The same holds true for os/signal_rpc_dispatcher.h. The mechanism has
moved to base/signal.h and is now called 'Signal_handler'.

Since the patch shuffles headers around, please do a 'make clean' in the
build directory.

Issue #1832
2016-04-11 11:51:46 +02:00
Alexander Boettcher
4ac7127f89 nova: avoid memory leak in kernel 2016-04-11 11:51:45 +02:00
Norman Feske
cda07b7da0 base: simplification of the IPC code
This commit replaces the stateful 'Ipc_client' type with the plain
function 'ipc_call' that takes all the needed state as arguments.
The stateful 'Ipc_server' class is retained but it moved from the public
API to the internal ipc_server.h header. The kernel-specific
implementations were cleaned up and simplified. E.g., the 'wait'
function does no longer exist. The badge and exception code are no
longer carried in the message buffers but are handled in kernel-specific
ways.

Issue #610
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
47878bd3e1 Remove 'Ipc_istream' and 'Ipc_ostream' from API
Fixes #610
2016-04-11 11:51:42 +02:00
Norman Feske
4cdfb9bc2f base: remove 'Native_connection_state' from API
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
da5d182ad3 base: remove 'Native_thread' from public API
Issue #1832
2016-04-11 11:51:42 +02:00
Norman Feske
84bfb4c04c base: remove 'Native_thread_id' type
Issue #1832
2016-03-18 22:43:01 +01:00
Stefan Kalkowski
5085ad36c3 tool: remove deprecated 'make prepare' mechanism
Fix #1897
2016-03-17 17:02:04 +01:00
Norman Feske
9b0eb720b0 base: remove 'Native_utcb' from public API
Fixes #1905
2016-03-17 17:02:04 +01:00
Norman Feske
9a3185f8ed base-linux: remove chroot support
Fixes #1903
2016-03-08 17:00:54 +01:00
Norman Feske
76db3b9c06 base: retire 'Native_config'
This commit moves the parameters of the stack area to the base-internal
header 'stack_area.h'.

Issue #1832
2016-03-08 17:00:54 +01:00
Norman Feske
7f73e5e879 base: hide internals of the Thread API
This patch moves details about the stack allocation and organization
the base-internal headers. Thereby, I replaced the notion of "thread
contexts" by "stacks" as this term is much more intuitive. The fact that
we place thread-specific information at the bottom of the stack is not
worth introducing new terminology.

Issue #1832
2016-03-07 12:34:46 +01:00
Norman Feske
3473955212 base-linux/nova: unify include/rm_session/client.h
By moving the stub implementation to rm_session_client.cc, we can use
the generic base/include/rm_session/client.h for base-linux and
base-nova and merely use platform-specific implementations.

Issue #1832
2016-03-07 12:34:45 +01:00
Norman Feske
2e701f9afa base: update include guards
This patch cleans up the include guards, assisted by the
tool/fix_include_ifndef script.
2016-03-07 12:34:45 +01:00
Norman Feske
e6729316ff base: uniform base-internal header structure
This patch establishes a common organization of header files
internal to the base framework. The internal headers are located at
'<repository>/src/include/base/internal/'. This structure has been
choosen to make the nature of those headers immediately clear when
included:

  #include <base/internal/lock_helper.h>

Issue #1832
2016-03-07 12:34:45 +01:00
Norman Feske
be496c6dc1 base: remove kernel-specific base/sleep.h
With this patch, the platform differences reside solely in the
implementation of the base library.

Issue #1832
2016-03-07 12:34:44 +01:00
Norman Feske
62b1c55399 Integrate CAP session into PD session
This patch integrates the functionality of the former CAP session into
the PD session and unifies the approch of supplementing the generic PD
session with kernel-specific functionality. The latter is achieved by
the new 'Native_pd' interface. The kernel-specific interface can be
obtained via the Pd_session::native_pd accessor function. The
kernel-specific interfaces are named Nova_native_pd, Foc_native_pd, and
Linux_native_pd.

The latter change allowed for to deduplication of the
pd_session_component code among the various base platforms.

To retain API compatibility, we keep the 'Cap_session' and
'Cap_connection' around. But those classes have become mere wrappers
around the PD session interface.

Issue #1841
2016-03-07 12:34:44 +01:00
Norman Feske
b1910cdd54 Integrate SIGNAL session into PD session
This patch removes the SIGNAL service from core and moves its
functionality to the PD session. Furthermore, it unifies the PD service
implementation and terminology across the various base platforms.

Issue #1841
2016-03-07 12:34:44 +01:00
Martin Stein
ff10687a6c toolchain: report missing ports at once
Previously, ports that were needed for a scenario and that were not
prepared or outdated, triggered one assertion each during the second
build stage. The commit slots a mechanism in ahead that gathers all
these ports during the first build stage and reports them in form of a
list before the second build stage is entered.  This list can be used
directly as argument for tool/ports/prepare_port to prepare respectively
update the ports. If, however, this mechanism is not available, for
example because a target is build without the first build stage, the old
assertion still prevents the target from running into troubles with a
missing port.

Fixes #1872
2016-03-07 12:34:43 +01:00
Alexander Boettcher
e5eb1000c7 nova: remove obsolete parts of documentation 2016-02-26 12:19:25 +01:00
Alexander Boettcher
f572cf8a05 nova: stop submitting signals on dead sm caps
Fixes #1877
2016-02-05 10:57:04 +01:00
Alexander Boettcher
7598f09295 nova: check for valid platform_pd pointer 2016-01-26 16:20:38 +01:00
Alexander Boettcher
a258caa7ab nova: propagate bdf for assign_pci properly
Now, the right PCI bus:device:function (BDF) is reported to the kernel
during assign_pci syscall - beforehand it was ever 0:0.0. The BDF is
needed to lookup the correct DMAR unit the kernel has to configure. This
was revealed as the DMAR unit for Intel graphics on x201 is not the same
as for all other PCI devices we have drivers for on this platform.

Fixes #1848
2016-01-13 14:57:02 +01:00
Alexander Boettcher
1d5aa4ca7e nova: avoid warnings because of oom handling
Use kernel branch which is more accurate in accounting memory, which avoids
kernel messages of following form:

[0] warning: insufficient resources ...

Fixes #1830
2016-01-08 14:37:57 +01:00
Alexander Boettcher
7ee3e98551 nova: update kernel to fix assertion
Some special pages (0-page, 1-page) in the kernel must not be freed up
during PD destruction.

Fixes #1828
2015-12-18 15:04:25 +01:00
Alexander Boettcher
a73c6470f6 nova: handle hip/mb memory region of size 0
Fixes #1814
2015-12-10 13:16:28 +01:00
Alexander Boettcher
1aa6a2a4a1 nova: fix kernel freezing
Fixes #1815
2015-12-10 13:16:28 +01:00
Alexander Boettcher
5b376188da nova: disable super pages for DMAR units 2015-11-29 18:17:09 +01:00
Alexander Boettcher
18130e3120 nova: limit user virtual address space on 64bit 2015-11-29 18:17:08 +01:00
Alexander Boettcher
f92a6a9594 nova: use kernel with DMAR quirk for Lenovo X250
Issue #1764
2015-11-29 18:17:08 +01:00
Alexander Boettcher
7857e830a3 nova: fix write-combing support
Issue #1764
2015-11-29 18:17:08 +01:00
Christian Prochaska
6bf4fd3340 nova: 64-bit guest support
Issue #1791
2015-11-29 18:17:06 +01:00
Alexander Boettcher
9ada3d3178 nova: sanity check parent pd assignments
Issue #1778
2015-11-18 12:22:09 +01:00
Alexander Boettcher
4b6b759739 nova: handle dissolve of not-activated entrypoints
Dissolve calls on not-yet-activated entrypoints will block forever in the
portal cleanup call without this commit.

Issue #1778
2015-11-18 12:22:08 +01:00
Alexander Boettcher
eb236a1a10 nova: re-add server object IPC cleanup call
Accidentally removed by #1658. We need to make the cleanup call for server
objects - otherwise we may get in capability identifier re-use trouble.

Issue #1778
2015-11-18 12:22:08 +01:00
Alexander Boettcher
91b69edb72 nova: adjust kernel warning/error messages
- extend one overmap message case
- show by default more error messages

Issue #1779
2015-11-18 12:22:08 +01:00
Alexander Boettcher
5c63f7003e nova: evalute pending irqs si->sm association
Fixes ps/2 driver bring-up if already some irqs are pending but not delivered
to the Genode signal(Nova semaphore) - reported by @nfeske.

Fixes #1779
2015-11-18 12:22:08 +01:00
Christian Helmuth
9730c7e333 base-nova: cleanup specific Rm_session_client
- Align implementation to the current generic implementation
- Document NOVA-specific implementation of dataspace() (as in the
  original commit message)
2015-11-04 14:37:55 +01:00
Alexander Boettcher
ffbbf69959 nova: update kernel branch to avoid tlb issues
Following page fault sympton in core gets fixed:

PAGE-FAULT IN CORE (WRITE pf_addr=1000000 pf_ip=14361c from 00 <NULL>)

stack pointer 0xa01fec30, qualifiers 0x6 irUWp

faulter utcb a01ff000, last message item count 1

0 - type=1 rights=0x3 region=0x1000000+0x1000000 hotspot 0(801) - delegated

   1 a01fec30 0014361c
   2 a01fec68 001401d5
2015-10-28 15:06:23 +01:00
Alexander Boettcher
d6bae1a9a3 nova: speedup clearing dataspace in core 2015-10-28 15:06:23 +01:00
Alexander Boettcher
ceb04d3c11 nova: avoid race in pager_object destruction
Don't skip the cleanup call if a pager object is marked as blocked.

It happens that the pager_object is in destruction but it is also used
concurrently by the pager thread. The pager thread handling code may set the
pager object to blocked but still uses the pointer to the pager object. Avoid
locking at the state of the pager object and make the cleanup call everytime.

Error output looks like this, where the pf_ip is within

  void Pager_object::_page_fault_handler(addr_t pager_obj)

method and the pf_addr is the stale pointer to the already released pager_object.

no RM attachment (READ pf_addr=xxx pf_ip=xxx from 00 <NULL>)
static void Genode::Pager_object::_page_fault_handler(Genode::addr_t): page fault, thread '<NULL>', cpu x, ip=xxx, fault address=xxx

PAGE-FAULT IN CORE (READ pf_addr=b10e0090 pf_ip=132dbc from 00 <NULL>)
2015-10-28 15:06:22 +01:00
Alexander Boettcher
6c30bf2667 nova: interpret write page fault correctly
Fixes #1722
2015-10-09 16:38:48 +02:00
Alexander Boettcher
2e62543fdb nova: use remote revoke
Fixes #1733
2015-10-09 16:38:48 +02:00
Alexander Boettcher
c0e88ec69e nova: adjust kernel quota calculation
Too less memory quota for a PD may be calculated, which leads to too early
punishment for a Genode process.

Discovered during Turmvilla scenario #1552 and issue #1733.
2015-10-09 16:38:47 +02:00
Alexander Boettcher
c7195c8652 nova: sanitize cpu during pager assignment
Additionally print warnings about unavailable CPUs if they are tried to be
used during pager object setup.

Discovered during Turmvilla scenario #1552 and issue #1733.
2015-10-09 16:38:47 +02:00
Alexander Boettcher
d7da035115 nova: sanitize priority parameters
threads with prio 0 will not be started and would fail silently.
Happened on Turmvilla for the USBProxy thread in virtualbox.

Discovered during Turmvilla scenario #1552 and issue #1733.
2015-10-09 16:38:47 +02:00
Alexander Boettcher
70a3bb7465 nova: avoid syscall on invalid signal capability
Reduces kernel log message noise when running on kernel-debug branch.
Additionally add a more verbose core message.

Discovered during Turmvilla scenario #1552 and issue #1733.
2015-10-09 16:38:46 +02:00
Alexander Boettcher
94f64ef464 nova: avoid sc_ctrl syscalls on invalid caps
Avoids kernel log messages if TRACE_ERROR is enabled in kernel.

Discovered during Turmvilla scenario #1552 and issue #1733.
2015-10-09 16:38:46 +02:00
Alexander Boettcher
ae12f04354 nova: avoid deadlocks by self-destructing threads
Issue #1687
2015-10-06 12:18:50 +02:00
Alexander Boettcher
ad24b25af0 nova: avoid buddy allocator assertion in kernel
Fixes #1672
2015-09-30 15:48:11 +02:00
Christian Helmuth
985c01116b nova: PIC compatible syscall_5
Addressing must be PC-relative, so adapt the approach from the other
nova_x86_32 syscall bindings (description by @ssumpf):

  Use call to push the current IP on the stack and add the distance of
  label 0 and label 1 in order to determine the return address, which
  NOVA requires in edx.

The bug only showed up with "-O0" in libc.lib.so in form of a unwanted
text relocation.

Fixes #1721
2015-09-30 15:48:10 +02:00
Stefan Kalkowski
b585583ec7 core: do not destroy in object pool's apply scope
Destroying an object within the scope of a lambda/functor executed
in the object pool's apply function leads potentially to memory corruption.
Within the scope the corresponding object is locked and unlocked when
leaving the scope. Therefore, it is illegal to free the object's memory meanwhile.
This commit eliminates several places in core that destroyed wrongly in
the object pool's scope.

Fix #1713
2015-09-30 12:20:40 +02:00
Stefan Kalkowski
ccb968ff7d safeguard the synchronized allocator template
* Move the Synced_interface from os -> base
* Align the naming of "synchronized" helpers to "Synced_*"
* Move Synced_range_allocator to core's private headers
* Remove the raw() and lock() members from Synced_allocator and
  Synced_range_allocator, and re-use the Synced_interface for them
* Make core's Mapped_mem_allocator a friend class of Synced_range_allocator
  to enable the needed "unsafe" access of its physical and virtual allocators

Fix #1697
2015-09-30 12:20:39 +02:00
Stefan Kalkowski
ed52d5a211 Introduce 'spec' subdirectories to outline aspects
Instead of holding SPEC-variable dependent files and directories inline
within the repository structure, move them into 'spec' subdirectories
at the corresponding levels, e.g.:

  repos/base/include/spec
  repos/base/mk/spec
  repos/base/lib/mk/spec
  repos/base/src/core/spec
  ...

Moreover, this commit removes the 'platform' directories. That term was
used in an overloaded sense. All SPEC-relative 'platform' directories are
now named 'spec'. Other files, like for instance those related to the
kernel/architecture specific startup library, where moved from 'platform'
directories to explicit, more meaningful places like e.g.: 'src/lib/startup'.

Fix #1673
2015-09-16 13:58:50 +02:00
Stefan Kalkowski
458b4d6fc4 base: redesign object pool using lambda interface
Instead of returning pointers to locked objects via a lookup function,
the new object pool implementation restricts object access to
functors resp. lambda expressions that are applied to the objects
within the pool itself.

Fix #884
Fix #1658
2015-09-09 15:14:28 +02:00
Alexander Boettcher
6776d6c9a8 nova: extend platform test by PAT test
Issue #1566
2015-08-31 09:09:22 +02:00
Alexander Boettcher
0f2c2a675a nova: support write combining
Fixes #1566
2015-08-31 09:09:22 +02:00
Alexander Boettcher
b438181188 nova: use updated r9 kernel branch
Fixes a kernel regression (because of using builtin_retrun_address)
introduced by the out-of-memory commits.

Issue #1601
2015-08-27 12:02:16 +02:00
Alexander Boettcher
9a326bed2d nova: revoke unused caps after IPC
Fix issue introduced during #905
2015-08-21 11:00:58 +02:00
Alexander Boettcher
df662cc2f3 nova: use kernel branch with quota handling
Fixes #1601
2015-08-21 10:59:45 +02:00
Stefan Kalkowski
eafe5e81e3 core: unify and simplify paging code (Fix #1641)
For most platforms except of NOVA a distinction between pager entrypoint
and pager activation is not needed, and only exists due to historical
reasons. Moreover, the pager thread's execution path is almost identical
between most platforms excluding NOVA, HW, and Fisco.OC. Therefore,
this commit unifies the pager loop for the other platforms, and removes
the pager activation class.
2015-08-21 10:58:59 +02:00
Christian Prochaska
2337dc03f4 nova: use branch supporting changing PDPTE by VMM
Fixes #1637
2015-08-21 10:58:59 +02:00
Alexander Boettcher
f87c573695 nova: increase default capability selector count
The reference count get increase to use 2 bytes, so we need the double amount
of selectors as before.

Additionally print a message if we run out of capabilities in a server. Since
our rpc framework is now clever enough to detect that for a printf we don't
need to setup a receive window, we may use a printf instead of a die call.
Eases debugging.

Issue #1601
2015-08-21 10:58:58 +02:00
Alexander Boettcher
c6943d494b nova: extend platform test to provoke kernel panic
Showcasing the out of memory kernel issue.

One test triggers oom during memory delegation when talking to core pager
thread. Two other test trigger oom during capability delegation in a
server/client scenario for send and reply phase separately.

Issue #1601
2015-08-21 10:58:58 +02:00
Martin Stein
f3e76b3e9a base: use BDA header in base-nova like base-hw
Moves the Bios Data Area header from base-hw to base. Modifies the
base-nova core console that it uses the header as replacement for
the previous BDA bit logic.

Ref #1625
2015-07-21 09:30:12 +02:00
Alexander Boettcher
0b019d0508 base: move x86 uart driver from nova to base
So it can be reused by base-hw-x86 instead of re-writing it.

Fixes #1403
2015-07-21 09:30:11 +02:00
Stefan Kalkowski
0f05fa6fd4 base: resolve dead lock in weak pointer templates
This commit eliminates the mutual interlaced taking of destruction lock,
list lock and weak pointer locks that could lead to a dead-lock situation
when a lock pointer was tried to construct while a weak object is in
destruction progress.
Now, all weak pointers are invalidated and dequeued at the very
beginning of the weak object's destruction. Moreover, before a weak pointer
gets invalidated during destruction of a weak object, it gets dequeued, and
the list lock is freed again to avoid the former dead-lock.

Fix #1607
2015-07-21 09:30:04 +02:00
Alexander Boettcher
c42e770384 detach ds from all rm sessions before destruction
Fixes #1617
2015-07-21 09:28:24 +02:00
Alexander Boettcher
9506c89f88 nova: fix memory leaks / invariant TSCs
- free up kernel memory of empty slabs (if already one empty slab is in
  place)
- free up more page table entries
- handle CPUs with invariant TSCs gracefully

  Genode/Nova running on CPUs without the invariant TSC feature may seem
  to 'hang'. The referenced commit of the nova branch fixes the issue
  for some older Intel CPUs.

Fixes #1615
2015-07-07 19:48:07 +02:00
Alexander Boettcher
4ee8919f29 nova: use 16bit for reference count of caps
Bomb and any server may generate references to capabilities exceeding 256 -
use a 16bit counter until the cap handling in Genode gets unified.

Additionally try to print a warning, instead of dying, if we get cap reference
count under or overflow.

Issue #1615
2015-07-07 19:48:07 +02:00
Norman Feske
503263a8a2 base-nova: consider non-contiguous CPU numbers
This is a follow-up commit to the following two patches:
* base/nova: add idle threads to trace sources
* nova: support to read thread and idle time
2015-07-07 19:48:05 +02:00
Stefan Kalkowski
2a351215f4 base: remove pager code from public API
Fix #1593
2015-07-01 14:46:15 +02:00
Norman Feske
a23ac5f569 base/nova: add idle threads to trace sources
Issue #813
2015-06-22 14:43:39 +02:00
Norman Feske
959572968d core: provide thread exec times via TRACE service
This patch enable clients of core's TRACE service to obtain the
execution times of trace subjects (i.e., threads). The execution time is
delivered as part of the 'Subject_info' structure.

Right now, the feature is available solely on NOVA. On all other base
platforms, the returned execution times are 0.

Issue #813
2015-06-22 14:43:38 +02:00
Alexander Boettcher
fbe44f08d4 nova: support to read thread and idle time
Issue #813
2015-06-22 14:43:38 +02:00
Alexander Boettcher
7b6cd28dcb nova: update to r9
Fixes compiler warnings and re-enables debug commits regarding out of memory
situations.

Fixes #1551
2015-06-03 12:53:48 +02:00
Stefan Kalkowski
28804e2bfb base: remove cap_integrity test (fix #1536) 2015-05-26 09:40:04 +02:00
Stefan Kalkowski
64bfe233d7 base: make CAP session upgradeable
* Introduce 'Out_of_metadata' exception for capability allocation

Ref #1443
2015-05-26 09:40:02 +02:00
Stefan Kalkowski
73c3a81e0b base: make PD session upgradeable
Ref #1443
2015-05-26 09:40:02 +02:00
Alexander Boettcher
3e90542559 nova: use signals with irqs in core
Avoids the need to have per IRQ a thread that blocks synchronously for next
interrupt. Now a thread may wait for multiple IRQs as other signals
simultaneously.

In core no threads are required anymore for IRQs/MSI - the clients (either
the pci_drv or in case of MSI the driver) gets the IRQ delivered directly as
a ordinary Genode signal.

Useful since #1216 and #1487 is now available.
Commit applies feature of #1446 also to IRQ/MSIs.
2015-05-26 09:39:51 +02:00
Alexander Boettcher
e84284c0cd base: remove shared irq from core
Cleanup commit after all relevant drivers got adapted to use the x86 platform
driver (pci_drv).

Issue #1471
2015-05-26 09:39:47 +02:00
Christian Prochaska
e8f82a1da3 nova: delay UTCB revocation on thread destruction
On NOVA, a Genode thread currently cannot destroy itself by destroying its
own 'Thread' object, because in 'Thread_base::_deinit_platform_thread()'
it cannot call 'Cpu_session::kill_thread()' anymore after it has revoked
its own UTCB.

As solution, the revocation of the UTCB can be delayed until its location
in the context area is needed by a new thread.

Fixes #1505
2015-05-26 09:39:46 +02:00