Drew Galbraith
2eefda6114
add a class to allocate and manage user space stacks
2023-05-30 22:35:57 -07:00
Drew Galbraith
1db93e5b12
Move PML4 initialization into the VirtualMemory class.
2023-05-30 21:39:19 -07:00
Drew Galbraith
f22dd66c8d
Manage KernelStacks separately rather than just allocing bytes.
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Create a global KernelStackManager that will handle the relevant allocs.
2023-05-30 21:28:44 -07:00
Drew Galbraith
b9b45c5e45
Add the ability to copy memory to non resident process.
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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
de49dcc01a
Move scheduler to new global class format.
2023-05-29 23:48:32 -07:00
Drew Galbraith
80d2bf1aaa
Move Processes and Threads to be stored in SharedPtr
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Reference counting lets us pass these around a bit more easily.
SharedPtr was lightly tested using uint64_t in the main zion funcion.
Also add a sleep functionality instead of panicking. Functionally the
same right now since we don't preempt.
2023-05-29 15:50:38 -07:00
Drew Galbraith
a06c9dced4
Add thread and process states.
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Add a thread exit call.
2023-05-29 13:51:03 -07:00
Drew Galbraith
7184f527a0
Jump to user mode.
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This instantly creates a page fault as we always map pages with ring 0
permissions.
2023-05-29 13:06:08 -07:00
Drew Galbraith
aefb4f082b
Add a kernel ELF module and load it in a new process.
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Don't yet jump to userspace.
2023-05-29 00:32:54 -07:00
Drew Galbraith
f86bbe6ea9
Wireframe for syscalls in place
2023-05-18 16:03:09 -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.
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Currently only one process but it is a start.
2023-05-18 13:24:02 -07:00
Drew Galbraith
960cbf9519
Add Scheduler wireframe.
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Right now does nothing but has containing classes for process and thread
information.
2023-05-18 12:43:53 -07:00
Drew Galbraith