Commit Graph

670 Commits

Author SHA1 Message Date
Christian Helmuth
1d73cf2003 Prevent false warnings in memcpy (GCC 12)
GCC 12 tree-loop-distribute-patterns generates false warnings of
-Warray-bounds, -Wstringop-overflow, or -Wstringop-overread in memcpy()
and memcpy_cpu() in static/inline cases for code that obviously prevents
its execution by invariant checking. On -O3, even more warnings are
produced.
2024-12-10 14:12:24 +01:00
Norman Feske
4d7a5b6829 base: add Attached_dataspace::clear()
This alleviates the need (and risk) of manually parametrizing 'memset'
whenever the entire dataspace shall be cleared.

Issue #3897
2024-11-20 08:58:39 +01:00
Norman Feske
88dc4c878f util/geometry.h: test (in)equality of rectangles
The operators == and != make the 'Rect' consistent with 'Point' and
'Area'. The patch also adds the 'Rect::clamp' method, which is generally
useful for sanitizing input.

Issue #5352
2024-10-08 09:09:24 +02:00
Norman Feske
bf064874db util/string.h: Byte_range_ptr::with_skipped_bytes
The new method provides a safe way to narrow the byte range to a
given offset.

Issue #5351
2024-10-08 09:09:23 +02:00
Norman Feske
5c20de212a base: Attached_dataspace::bytes accessor
The new bytes() accessor returns a Byte_range_pointer as an alternative
to the 'local_addr' for accessing the content of the dataspace. This
facilitates the safe practice of passing (and validating) the buffer
bounds along with the pointer.

Issue #5351
2024-10-08 09:09:23 +02:00
Alexander Boettcher
ff506b0375 vm/x86: support extended fpu state transfer
Extend Genode's vCPU FPU state and adjust all users to copy
at most FPU data they actually support.

Issue #5314
2024-10-07 15:54:59 +02:00
Norman Feske
034de3b1b1 base/connection.h: allow customized cap-quota arg
By default, a 'Connection' donates an amount of caps as declared in
SESSION_TYPE::CAP_QUOTA to the server at session-creation time.

In some situations, however, a client may deliberately want to donate a
larger amount. For example, when opening a GUI session at the wm, the
total amount of needed caps is the sum of those consumed by the wm plus
those consumed by nitpicker. Using this knowledge, the Gui::Connection
may specify a sufficient amount to avoid iterative session-creation
retries. The new 'Connection' constructor accommodates this use case by
accepting an explicit 'cap_quota' argument.

Issue #5340
2024-10-07 14:44:31 +02:00
Alexander Boettcher
2e92b7ae32 nova: enable FPU AVX support
Add extended FPU state detection and handling (via xsave and friends) to the
kernel, which has to store/load more FPU state (~512 -> 2k++) during context
switching of threads. Additional the referenced nova branch contains various
optimization during VM destruction and cross core IPC resource caching.

This FPU work is based upon upstream NOVA kernel and Hedron commits.

Issue #5314
Fixes #3914
2024-08-27 15:29:37 +02:00
Stefan Kalkowski
6afe4f79a2 base: tie quota_lim_downscale template to size_t
* Always use size_t instead of template type
* Thereby we can remove 128-bit type from all architectures in base-hw

Ref genodelabs/genode#5310
2024-08-27 15:26:51 +02:00
Norman Feske
943dfa10e7 base/child.h: remove exceptions from process init
This patch replaces the former Child::Process and
Child::Process::Loaded_executable classes by static functions that
return failure conditions as return values.

Issue #5245
2024-07-02 12:00:11 +02:00
Norman Feske
0288cffaee Remove exceptions from 'Parent' interface
Issue #5245
2024-07-02 12:00:11 +02:00
Norman Feske
19c13877ca Replace use of 'typedef' by 'using'
Issue #5227
2024-07-02 12:00:11 +02:00
Norman Feske
361557e1f0 base-*: omit () for lambas w/o argument
Issue #5227
2024-07-02 12:00:11 +02:00
Norman Feske
a2b0553c51 base-*: use C++20 function template syntax
Issue #5227
2024-07-02 12:00:11 +02:00
Norman Feske
0105494223 Rework Region_map interface
- Remove exceptions
- Use 'Attr' struct for attach arguments
- Let 'attach' return 'Range' instead of 'Local_addr'
- Renamed 'Region_map::State' to 'Region_map::Fault'

Issue #5245
Fixes #5070
2024-07-02 11:59:16 +02:00
Norman Feske
d866b6b053 Remove exceptions from Cpu_session interface
The 'Thread_creation_failed' error is now reflected as
'Thread::Start_result' return value. This change also removes the
use of 'Invalid_thread' within core as this exception is an alias
of Cpu_session::Thread_creation_failed.

Issue #5245
2024-07-02 11:59:16 +02:00
Stefan Kalkowski
e93f5fe8e0 base-hw: move imx53-specifics to imx repository
Ref genodelabs/genode#5252
2024-06-20 13:25:06 +02:00
Stefan Kalkowski
5a8d149fe3 hw: move all imx7d specifics to imx repository
Ref genodelabs/genode#5252
2024-06-20 13:24:41 +02:00
Norman Feske
14d3c4cb5e Remove Cpu_session::State_access_failed exception
This patch removes the exception formerly thrown by 'Cpu_thread::state'
and turns the 'Thread_state' structure into a plain compound type w/o a
constructor.

Issue #5245
Fixes #5250
2024-06-20 12:56:20 +02:00
Norman Feske
5181d08d05 Remove exceptions from Rm_session interface
Issue #5245
2024-06-20 12:56:20 +02:00
Norman Feske
0d7d60a1f4 Remove exceptions from Pd_session interface
This patch replaces exceptions of the PD session RPC interface with
result types.
The change of the quota-transfer RPC functions required the adaptation
of base/quota_transfer.h and base/child.h.
The 'alloc_signal_source' method has been renamed to 'signal_source'
to avoid an exceedingly long name of the corresponding result type.
The Pd_session::map function takes a 'Virt_range' instead of basic-type
arguments.
The 'Signal_source_capability' alias for 'Capability<Signal_source>' has
been removed.

Issue #5245
2024-06-20 12:56:19 +02:00
Norman Feske
24342db476 base/signal.h: remove pointers from API
This patch updates the signal API to avoid raw pointers, and
replaces the Context_already_in_use and Context_not_associated
exceptions by diagnostic messages.

Fixes #5247
2024-06-20 12:56:19 +02:00
Norman Feske
8a0689d832 Remove Pd_session::Invalid_signal_source exception
While changing 'Pd_session::alloc_context', this patch also tightens the
type of the imprint argument.

Issue #5245
2024-06-20 12:56:19 +02:00
Norman Feske
a52c2ce141 Remove exceptions from TRACE session interface
- Use attempt pattern for error handling
- Replace lookup of pointers by with_ pattern
- Remove virtual Trace::Session methods
- Merge client.h into connection.h
- Update coding style of test/trace

Issue #5245
2024-06-20 12:56:19 +02:00
Norman Feske
7de2f57ef2 Remove Xml_node::attribute accessors
This patch removes the two 'Xml_node::attribute' accessors along with
the 'Nonexistent_attribute' exception.

Issue #5245
Fixes #5246
2024-06-20 12:56:19 +02:00
Norman Feske
ef385696f6 base/child.h: remove Nonexistent_id_space exception
This exception got introduced as a mere convenience for implementers of
'Child_policy' but required a special case in the base library.
Following the goal of eliminating exceptions from the base system,
this patch removes it by making a server_id_space mandatory.

Issue #5245
2024-06-20 12:54:30 +02:00
Norman Feske
7c91596922 Exception-less overload of 'Id_space::apply'
This patch allows the use of the 'Id_space' utility without catching
'Unknown_id' exceptions. Instead, the new 'apply' overload takes a
second functor 'missing_fn' as argument, which is called whenever the
lookup fails.

Issue #5244
2024-06-20 12:54:30 +02:00
Christian Helmuth
73d18261dc Fix calculation in timer_ticks_to_us()
Added missing factoring of the upper-half division remainder into the
lower-half calculation.

Fixes #5243
2024-06-20 12:54:30 +02:00
Norman Feske
c629c54153 Make util/geometry.h C++20 friendly
- Move header to base/include to make it applicable for base types
  like 'Affinity' down the road.
- Represent 'Rect' as typle of point and area, which is the most
  common form of initialization, creates in valid 'Rect' by default.
- Turn Point, Area, and Rect into compound types, making x, y, w, h, at,
  area accessible without a method call
- 'Rect::Compound' function for constructing a 'Rect' from two points,
  replacing a former constructor
- Use result type 'Rect::Cut_remainder' instead of out parameters.

Fixes #5239
2024-06-20 12:54:30 +02:00
Norman Feske
5e862b2cd3 base/include: use C++20 function template syntax
Issue #5227
2024-05-29 09:18:12 +02:00
Benjamin Lamowski
4fc94deccb base: x86: page table base: make parameters compatible
To make the x86 page table base implementation compatible with the
function signatures used in hw, make the Intel IOMMU specific arguments
optional:

- Make the `flush` parameter default to false.
- Make the `supported_sizes` parameter default to 1GB + 2MB + 4k.

Issue #5217
2024-05-29 09:18:11 +02:00
Benjamin Lamowski
30b39d5fa3 base: generalize the page table allocator and move it to base
The Intel IOMMU page table implementation in the pc platform driver uses
a page table allocator that is adapted from the implementation in the hw
kernel.

Move the allocator to base as a first step to consolidate
implementations, fix an Array constructor and re-add the Allocator
constructor working on addresses instead of tables.

Issue #5217
2024-05-29 09:18:11 +02:00
Benjamin Lamowski
58e9856eb8 base: move page flags interface to base
On hw, `Page_flags` is used throughout architectures. At the same time,
it is used by the Intel IOMMU page table implementation in the pc
platform driver.

Consolidate the definition in base so it is available for all users.

Issue #5217
2024-05-29 09:18:11 +02:00
Johannes Schlatow
c31adb77e7 base: add shared page-table code for x86_64
Issue #5217
2024-05-29 09:18:11 +02:00
Benjamin Lamowski
aad80e81da hw: add support for VMX
Add support for Intel's Virtual Machine Extensions with nested paging.

Fixes #5128
2024-05-29 08:37:08 +02:00
Alexander Boettcher
34674ac49f register_set: avoid conversion warnings
for Bitset_2 and Bitset_3 as used by ahci driver

Issue #5134
2024-04-12 12:55:39 +02:00
Martin Stein
1336b0a751 mmio: upper-bounds checks
The classes Genode::Mmio, Genode::Register_set, Genode::Attached_mmio, and
Platform::Device::Mmio now receive a template parameter 'size_t SIZE'. In each
type that derives from one of these classes, it is now statically checked that
the range of each Genode::Register::Register- and
Genode::Register_set::Register_array-deriving sub-type is within [0..SIZE).

That said, SIZE is the minimum size of the memory region provided to the above
mentioned Mmio classes in order to avoid page faults or memory corruption when
accessing the registers and register arrays declared inside.

Note, that the range end of a register array is not the end of the last item
but the end of integer access that is used for accessing the last bit in the
last item.

The constructors of Genode::Mmio, Genode::Attached_mmio, and
Platform::Device::Mmio now receive an argument 'Byte_range_ptr range' that is
expected to be the range of the backing memory region. In each type that derives
from on of these classes, it is now dynamically checked that 'range.num_bytes
>= SIZE', thereby implementing the above mention protection against page faults
and memory corruption.

The rest of the commit adapts the code throughout the Genode Labs repositories
regarding the changes. Note that for that code inside Core, the commits mostly
uses a simplified approach by constructing MMIO objects with range
[base..base+SIZE) and not with a mapping- or specification-related range size.
This should be fixed in the future.

Furthermore, there are types that derive from an MMIO class but don't declare
any registers or register arrays (especially with Platform::Device::Mmio). In
this case SIZE is set to 0. This way, the parameters must be actively corrected
by someone who later wants to add registers or register arrays, plus the places
can be easily found by grep'ing for Mmio<0>.

Fix #4081
2024-02-26 08:59:07 +01:00
Martin Stein
ee6f5f3b1b base: remove deprecated driver files
As far as I can tell, these file are not used anymore.

Ref #4081
2024-02-26 08:31:06 +01:00
Norman Feske
41731a2439 Make Session_object::warning const
This allows the use of the label-prefixed log utilities from a const
method of a derived class.
2024-02-26 08:31:03 +01:00
Christian Helmuth
d5188161f5 util/string.h: add Const_byte_range_ptr::contains()
Issue #5078
2023-12-15 14:11:56 +01:00
Christian Helmuth
0046edf761 base: statically check for reasonable Tslab block size
Per default Tslab checks that 8 slabs incl. overhead fit into one block.
If this is not desired the template parameter 'MIN_SLABS_PER_BLOCK' can
be used to control the minimum number of blocks.

Fixes #3834
2023-12-13 12:32:19 +01:00
Norman Feske
f57da7e645 trace: remove parent_levels session argument
The argument was originally designated to restrict the reach of the
trace monitor but the idea remained unimplemented. It is now superseded
by the use of the trace-session label as trace-subject filter.

Issue #847
2023-12-13 12:28:52 +01:00
Johannes Schlatow
eefaa07024 base: add irq_type session argument
By adding the `irq_type` argument, one can explicitly specify whether to
use LEGACY, MSI or MSI-X interrupts. We formerly used the
`device_phys_config` to implicitly select MSI, however, with the
addition of IOMMU support to the platform driver there is at least one
instance where we need an MSI for a non-PCI device.

Yet, by adding another session argument to the Irq session, we exceed
the character limit for session args. Since not all arguments are
relevant for LEGACY interrupts resp. MSI, we can split the Irq_connection
constructor to handle the two cases separately and omit unneeded
arguments.

genodelabs/genode#5002
2023-11-28 19:35:16 +01:00
Christian Prochaska
e9f3101105 base: restore the session phase in `Parent_service'
Issue #5055
2023-11-28 14:24:26 +01:00
Norman Feske
d7ee460704 list_model.h: rename 'apply_first' to 'with_first'
Issue #4317
2023-11-28 14:24:24 +01:00
Norman Feske
0f686a774d list_model.h: retire 'update_list_model_from_xml'
This transition vehicle to the modern interface has now been replaced by
the new 'List_model::update_from_xml' method.

Issue #4317
2023-11-28 14:24:24 +01:00
Norman Feske
b9b2a7de34 Simplify 'List_model'
This patch replaces the original policy-based 'update_from_xml' by a new
method that takes three functors for creating, destroying, and updating
elements as arguments. XML nodes are associated with their corresponding
internal data models by annotating the element type with the
'type_matches' class function and the 'matches' method.

The patch also improves safety by enforcing that list-model elements can
never be copied.

Fixes #4317
2023-11-28 14:24:24 +01:00
Roman Iten
0d344de496 base: extend constness of Genode::Token
Fixes #5039
2023-11-28 14:24:24 +01:00
Norman Feske
87b7dfed5d xml_node: skip whitespace in differs_from
The 'Xml_node::differs_from' method takes the constructor arguments
(addr, size) for a byte-wise comparison whereas 'with_raw_node'
restricts the byte range to the actual XML tags. In cases where
the XML start tag is preceeded by whitespace, both ranges can differ.

Since the 'differs_from' method is meant for comparing actual XML
nodes - not any whitespace around them - whitespace should be ignored
on both operands.

Issue #5029
2023-10-25 08:58:53 +02:00
Alexander Boettcher
e36170c997 nova: add guarded access to MSRs
via Genode Pd::system_control interface

Issue #5009
2023-10-25 08:58:52 +02:00