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rpi-MMU-example
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Simple kernel to present usage of Memory Management Unit, under Raspberry Pi 3B running libre firmware
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2019-12-31
define peripherals base
Wojtek Kosior
2019-12-31
add cpsr-writing function
Wojtek Kosior
2019-12-31
split stack into irq, fiq and supervisor stacks; add proper handling of ↵
Wojtek Kosior
those in interrupt handlers (asm code)
2019-12-31
reset is used by us in a hacky way and never really triggered by hardware; ↵
Wojtek Kosior
mark that
2019-12-31
don't statically define the unprivileged section (we're going to have many ↵
Wojtek Kosior
dynamically-claimed unprivileged sections)
2019-12-31
add strcat
Wojtek Kosior
2019-12-31
introduce SECTION_NULL
Wojtek Kosior
2019-12-31
print info about completed initialization of kernel's paging structures
Wojtek Kosior
2019-12-31
print information about mapping created for PL0 code
Wojtek Kosior
2019-12-31
use just implemented basic memory section allocation for processes
Wojtek Kosior
2019-12-31
implement basic memory section allocation for processes
Wojtek Kosior
2019-12-31
remove misleading const
Wojtek Kosior
2019-12-31
typo
Wojtek Kosior
2019-12-31
determine amount of memory available
Wojtek Kosior
2019-12-31
move memset() implementation to strings.c
Wojtek Kosior
2019-12-31
use memcpy()
Wojtek Kosior
2019-12-31
add memcpy
Wojtek Kosior
2019-12-31
handle atags in C code, print (some of) it's contents
Wojtek Kosior
2019-12-31
fix number to decimal string conversion
Wojtek Kosior
2019-12-31
add strlen implementation
Wojtek Kosior
2019-12-30
inform about values passed to the kernel
Wojtek Kosior
2019-12-30
fix number trimming
Wojtek Kosior
2019-12-30
preserve atags for stage2
Wojtek Kosior
2019-12-30
don't mark used values as unused
Wojtek Kosior
2019-12-30
uint32_to_hexstring() bugfix
Wojtek Kosior
2019-12-30
better naming of qemu-* targets
Wojtek Kosior
2019-12-30
minor improvements to Makefile
Wojtek Kosior
2019-12-30
io api rework
Wojtek Kosior
2019-12-30
stop direct uart usage from PL0
Wojtek Kosior
2019-12-30
implement getchar() and putchar() in terms of supervisor call
Wojtek Kosior
2019-12-30
fix the linking of embedded ramfs
Wojtek Kosior
2019-12-30
don't perform unneeded section renaming for embedded files
Wojtek Kosior
2019-12-28
improve linking of PL0_test
Wojtek Kosior
2019-12-28
enter and exit supervisor call (+ fixed jumping to PL0 for the first time - ↵
Wojtek Kosior
setting sp was broken there)
2019-12-28
simple interrupt handling functions declarations, without attributes
Wojtek Kosior
2019-12-28
split kernel into 2 stages; second stage gets copied to 0x0 and runs from there
Wojtek Kosior
2019-12-28
modify comment in the top of loader_stage1.S
Wojtek Kosior
2019-12-28
correct the notion of PIC in the comment
Wojtek Kosior
2019-12-28
don't take kernel arguments (as we're making no use of them for now, anyway)
Wojtek Kosior
2019-12-28
forward arguments from the loader
Wojtek Kosior
2019-12-28
rewrite the stage 1 of bootloader in a more compact and (mostly) ↵
Wojtek Kosior
load-addr-independent way
2019-12-28
minor changes to Makefile
Wojtek Kosior
2019-12-28
remove makefs executable when running `make clean`
Wojtek Kosior
2019-12-28
clean-up memory.h
Wojtek Kosior
2019-12-28
use ldm instruction instead of libkernel for entering user mode; get rid of ↵
Wojtek Kosior
libkernel (no longer needed)
2019-12-28
remain in supervisor mode
Wojtek Kosior
2019-12-28
make uint32_to_bits() inline
Wojtek Kosior
2019-12-28
place PL_0_test.img in ramfs instead of embedding it directly
Wojtek Kosior
2019-12-28
add ramfs driver
Wojtek Kosior
2019-12-28
another hopefully last change to the format - add terminating null-byte at ↵
Wojtek Kosior
the end of the entire ramfs
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