Drew Galbraith
3c3341a90f
Add a process spawn syscall and use it to start a proc.
...
Also add a skeleton VirtualMemory manager to be used per process.
2023-05-30 20:55:03 -07:00
Drew Galbraith
b9b45c5e45
Add the ability to copy memory to non resident process.
...
Use/Test this by loading the user space elf from the kernel process
before it starts rather than as a part of the first thread.
This simplifies thread start a fair bit.
2023-05-30 01:27:47 -07:00
Drew Galbraith
f6609983d2
Move away from using recursive mapping for page tables.
...
Having the HHDM-based mapping allows us to more easily map data into
non-resident processes.
2023-05-30 01:06:01 -07:00
Drew Galbraith
6f5b65de30
Map user pages in the proper mode.
...
This causes the user code to execute succesfully.
However now we don't differentiate between syscalls so we pass right
over the exit syscall and continue executing until we fault.
2023-05-29 13:06:08 -07:00
Drew Galbraith
d3024211a7
Cycle through multiple tasks in multiple processes
2023-05-18 13:56:54 -07:00
Drew Galbraith
cb41953354
Scheduler with working threads.
...
Currently only one process but it is a start.
2023-05-18 13:24:02 -07:00
Drew Galbraith
de2c96b848
Internal many paging_util functions.
2023-05-18 11:40:13 -07:00
Drew Galbraith
fa2bb4df89
Added a PhysicalMemoryManager class.
...
Stores a linkedlist of free blocks of PhysicalMemory.
2023-05-18 11:34:45 -07:00
Drew Galbraith
4380590af2
Add new and delete operator implementations to the kernel heap.
...
For now delete does nothing.
2023-05-18 11:29:44 -07:00
Drew Galbraith
2d719d0443
Add a bootstrap physical memory manager.
...
This will allow the real physical memory manager to use allocations.
2023-05-18 11:00:05 -07:00
Drew Galbraith
0b7e667368
Add a basic kernel heap object.
...
Currently allocation always fails because we don't
have a way to allocate a physical page.
2023-05-18 10:59:39 -07:00
Drew Galbraith
45b5817a36
Recursively map the PML4
2023-05-18 02:00:01 -07:00
Drew Galbraith