genode

History

Norman Feske d2b21d294e base/mk: streamline spec includes for ARM This patch sets the -march complile flag in spec/arm_v7a.mk, which enables us to build depot archives for the 'arm_v7a' architecture. It also removes copy-pasted comments that offer no valuable insights but contain grammar errors.		2017-06-29 12:00:01 +02:00
..
etc	Let default tools.conf cover each architecture	2016-07-15 11:38:26 +02:00
include	sd_card: move defs from wand_quad to imx6 header	2017-06-29 11:59:57 +02:00
lib	base: use 'Ram_allocator' as stack-area back end	2017-05-31 13:16:13 +02:00
mk	base/mk: streamline spec includes for ARM	2017-06-29 12:00:01 +02:00
recipes	depot: update recipe hashes	2017-05-31 16:18:01 +02:00
run	acpi_drv: use platform_info for rsdt/xsdt lookup	2017-06-29 11:59:50 +02:00
src	base: simplify handling of session-creation errors	2017-06-29 11:59:52 +02:00
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.