todo.md

Things to be done

Kernel

• Replace magic values at serial init by defines
• FPU
  • Extend undefined exception to check for fpu error with clear of flag
• Add SMP support see also
  • Prepare virtual memory management per core if smp is active
  • Determine current running core within exceptions
  • Extend irq check to check corresponding cpu interrupt registers
• Documentation ( man pages or markdown )
  • Getting started after checkout
  • Cross-compiler toolchain
  • Configuring target overview
• Revise paging to use lpae or non lpae depending on define
• Adjust message passing for rpc calls
  • Allocate page size for mailbox ( linked message list )
  • Consider mailbox in fork correctly by assigning new forked physical memory address
  • Map mailbox temporarily
  • Check for enough space is left
  • Add new rpc parameter to mailbox
  • Try to switch to process handling rpc
  • Remove old in kernel data handling for rpc

Different projects, not kernel related things to be done

• Create a draft for "build" system to create ready to boot images with platform driver/app packaging
  • Per platform initial ramdisk creation

VFS

• Revise vfs handles to tree built by complete path
• Replace vfs tree by simple mount point list
• VFS shall have 2 different mount points before mount is called
  • /dev
  • /ramdisk
• VFS shall have 2 additional mount points when mounting root and boot was successful
  • /
  • /boot
• Filesystem access
  • Mounting of / and /boot shall be done by a chains like the following:
    • process->vfs->fs/fs->fs/ext->storage/sd->fs/ext->fs/fs->vfs->process
    • process->vfs->fs/fs->fs/fat->storage/sd->fs/fat->fs/fs->vfs->process

Servers

• Adjust rpc structure to not peek messages from kernel but fetch from mailbox