boot: convert paging from assembly to Zig (take 2)#23

Merged

karlek merged 54 commits intomainfrom neo-less-asm

May 3, 2024

Commits on Apr 29, 2024

zasm: add util functions for control and model specific registers

mewmew
authored and
karlek
committed
zasm: update Zig syntax to version 0.11.0

mewmew
authored and
karlek
committed
boot: rewrite assembly version of enable_paging in Zig

mewmew
authored and
karlek
committed
boot: remove unused print32.asm

mewmew
authored and
karlek
committed
boot: remove unused protected_mode.asm

mewmew
authored and
karlek
committed
boot: remove unused print.asm

mewmew
authored and
karlek
committed
zasm: add PageTableEntry and PageTableFlags from x86_64 repo

mewmew
authored and
karlek
committed
zasm: update Zig syntax to version 0.11.0 (part 2)

mewmew
authored and
karlek
committed
boot: ensure that no MMX instructions are used in 32-bit boot code

mewmew
authored and
karlek
committed
boot: rewrite assembly version of map_frame_buffer in Zig

mewmew
authored and
karlek
committed
boot: rewrite assembly version of map_kernel_stack in Zig

mewmew
authored and
karlek
committed
boot: use dedicated functions to map kernel code and data segment pages

mewmew
authored and
karlek
committed
boot: rewrite assembly version of set_up_page_tables in Zig

mewmew
authored and
karlek
committed
boot: make paging constants public and move into dedicated source file

mewmew
authored and
karlek
committed
makefile: add TODO to remove objcopy hack

mewmew
authored and
karlek
committed
boot: add TODO to remove 4xNOP hack in init_long_mode

mewmew
authored and
karlek
committed
boot/paging: use const instead of var where applicable

mewmew
authored and
karlek
committed
boot/paging: move load of P4 table (Cr3) closer to enable paging code (Cr0)

mewmew
authored and
karlek
committed
boot/paging: assert that long mode active is set after enable_paging

mewmew
authored and
karlek
committed
zasm: add TODO to re-enable assert in setAddr

mewmew
authored and
karlek
committed
notes: add logbook entry for ld bug

mewmew
authored and
karlek
committed
boot: make kernel_data_seg executable for userland code and data (TEMP!)

mewmew
authored and
karlek
committed
update to use Zig 0.12

mewmew
authored and
karlek
committed
add TODO for adding guard page in between kernel memory and heap

mewmew
authored and
karlek
committed
paging: remove user access from kernel stack and framebuffer

mewmew
authored and
karlek
committed
map userland

mewmew
authored and
karlek
committed
make kernel heap address less hard-coded

mewmew
authored and
karlek
committed
copy userland code into userland segment

mewmew
authored and
karlek
committed
switch to userland stack

mewmew
authored and
karlek
committed
remove user accessability from kernel code segment

mewmew
authored and
karlek
committed
remove user accessibility from kernel data segment, userland now in userland segment!

mewmew
authored and
karlek
committed
fix C compiler warnings

mewmew
authored and
karlek
committed
tss64: dynamically updated tss64 addr
karlek
committed
make: Remove bin/fat32.img remnants
karlek
committed
paging: nice virtual ASCII memory mappings.
karlek
committed
run/debug: Increase memory demands from 128M -> 4G
karlek
committed
debug: ctrl-c now possible in gdb
karlek
committed
ci: add lld dependency
karlek
committed
lint: appease the CI gods
karlek
committed
make: Remove last bin/fat32.img sneaky boi
karlek
committed