mirror of
https://github.com/genodelabs/genode.git
synced 2024-12-19 21:57:55 +00:00
61926ebc07
The new 'init_platform' function performs the platform-specific component-local low-level initialization. It allows for the differentiation between core and regular components as well as kernel-dependent peculiarities. This patch introduces a consistent notion of a 'Platform'. Within core, the 'Platform' contains the kernel-specific initialization. Outside core, the platform sets up the interplay with the parent component. In all cases, the platform is constructed while running on the initial stack. Issue #4784 |
||
|---|---|---|
| .. | ||
| board | ||
| etc | ||
| include | ||
| lib | ||
| mk | ||
| ports | ||
| recipes | ||
| run | ||
| src | ||
| xsd | ||
| README | ||
This is the generic Genode base system, which consists of two parts: :_Core_: is the root of the Genode component tree. It provides abstractions for the lowest-level hardware resources such as RAM, ROM, CPU, and device access. All generic parts of core can be found here. For kernel-specific parts, refer to the appropriate 'base-<kernel>' directory. :_Base libraries and interfaces: that are used by each Genode component to interact with other components. This is the glue that holds everything together. Depending on the used kernel, core may export information about the hardware platform as a ROM called 'platform_info'. For example, if the ACPI RSDT and XSDT physical pointer are reported by the used kernel and/or bootloader, core provides this information in the ROM as follows. !<platform_info> ! <acpi revision="2" rsdt="0x1fe93074" xsdt="0x1fe930e8"/> ! <boot> ! <framebuffer phys="0x7300000" width="1024" height="768" bpp="32"/> ! </boot> !</platform_info> If the graphics device is initialised and can be directly used by a framebuffer driver, core provides the physical pointer to the framebuffer, the resolution, and color depth in bits.