genode

History

Norman Feske 9d67f9fc8e Remove Allocator_guard This patch removes old 'Allocator_guard' utility and replaces its use with the modern 'Constrained_ram_allocator'. The adjustment of core in this respect has the side effect of a more accurate capability accounting in core's CPU, TRACE, and RM services. In particular, the dataspace capabilities needed for core-internal allocations via the 'Sliced_heap' are accounted to the client now. The same goes for nitpicker and nic_dump as other former users of the allocator guard. Hence, the patch also touches code at the client and server sides related to these services. The only remaining user of the 'Allocator_guard' is the Intel GPU driver. As the adaptation of this component would be too invasive without testing, this patch leaves this component unchanged by keeping a copy of the 'allocator_guard.h' locally at the component. Fixes #3750		2020-05-18 10:16:12 +02:00
..
etc	tools.conf: fix check for arm_64	2019-11-19 14:17:29 +01:00
include	Remove Allocator_guard	2020-05-18 10:16:12 +02:00
lib	libc: provide C++ runtime symbols in ABI	2020-04-17 12:40:13 +02:00
mk	Remove Rust support	2020-04-24 14:37:57 +02:00
ports	base: add uboot for imx8 as port	2019-12-19 17:01:42 +01:00
recipes	depot: update recipe hashes	2020-04-24 14:37:57 +02:00
run	Retire Exynos 5 support (fix #3725 )	2020-04-17 12:53:57 +02:00
src	Remove Allocator_guard	2020-05-18 10:16:12 +02:00
xsd	base_types.xsd: allow session labels of length 0	2018-11-16 14:37:19 +01:00
README	core: add information about infos provided by core	2017-06-29 11:59:52 +02:00

README

This is generic part of the Genode implementation. It consists of two parts:

:_Core_: is the ultimate root of the Genode application tree
  and provides abstractions for the lowest-level hardware resources
  such as RAM, ROM, CPU, and generic device access. All generic parts of Core
  can be found here - for system-specific implementations refer to the
  appropriate 'base-<system>' directory.

:_Base libraries and protocols_: that are used by each Genode component
  to interact with other components. This is the glue that holds everything
  together.

_Core_ may export information about the hardware platform by an ROM
called 'platform_info'. Depending on the platform, e.g. ARM or x86 or riscv,
and depending on the boot mode and boot loader and kernel, some nodes may not
be populated.

!<platform_info>
! <acpi revision="2" rsdt="0x1fe93074" xsdt="0x1fe930e8"/>
! <boot>
!   <framebuffer phys="0x7300000" width="1024" height="768" bpp="32"/>
! </boot>
!</platform_info>

If the ACPI RSDT and XSDT physical pointer is reported by the used kernel
and/or bootloader, _Core_ may provide this information by the ROM.

If the graphic device is initialised and can be directly used by a framebuffer
driver, _Core_ may provide the physical pointer to the framebuffer, the
resolution and color depth in bits.