 Drew Galbraith
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add533071b
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Use APIC for interrupts rather than PIC.
Still rely on the PIT for now rather than the local APIC timer.
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2023-06-07 13:40:36 -07:00 |
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Drew Galbraith
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81b925eea0
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Add a basic IPC setup with Channel Object.
Pass a process a channel endpoint on startup that it will use to
get it's initial capabilities.
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2023-06-07 08:24:10 -07:00 |
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Drew Galbraith
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eb454300e6
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Move elf loader into the init loader in the kernel
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2023-06-07 00:08:21 -07:00 |
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Drew Galbraith
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b06c76e477
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Create a MemoryObject class and use it to load programs.
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2023-06-06 21:44:10 -07:00 |
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Drew Galbraith
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1fda0f3fae
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Move VirtualMemory to AddressSpace Object
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2023-06-06 20:43:15 -07:00 |
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Drew Galbraith
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b5ad454ad1
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Move Process & Thread to the object folder.
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2023-06-06 20:18:53 -07:00 |
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Drew Galbraith
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ef8eb5d993
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Add a threading syscall API.
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2023-06-06 16:24:03 -07:00 |
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Drew Galbraith
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2eefda6114
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add a class to allocate and manage user space stacks
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2023-05-30 22:35:57 -07:00 |
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Drew Galbraith
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f22dd66c8d
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Manage KernelStacks separately rather than just allocing bytes.
Create a global KernelStackManager that will handle the relevant allocs.
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2023-05-30 21:28:44 -07:00 |
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Drew Galbraith
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7fe6c24aa5
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Add a ProcessManager class to store Process objects.
Trying out a new method for exposing global objects directly via a
variable.
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2023-05-29 23:35:44 -07:00 |
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Drew Galbraith
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629dca278b
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Enable the PIC and add a timer.
This causes a GP fault after the timer runs for some time.
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2023-05-29 21:52:01 -07:00 |
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Drew Galbraith
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7184f527a0
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Jump to user mode.
This instantly creates a page fault as we always map pages with ring 0
permissions.
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2023-05-29 13:06:08 -07:00 |
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Drew Galbraith
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aefb4f082b
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Add a kernel ELF module and load it in a new process.
Don't yet jump to userspace.
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2023-05-29 00:32:54 -07:00 |
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Drew Galbraith
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f86bbe6ea9
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Wireframe for syscalls in place
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2023-05-18 16:03:09 -07:00 |
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Drew Galbraith
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cb41953354
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Scheduler with working threads.
Currently only one process but it is a start.
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2023-05-18 13:24:02 -07:00 |
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Drew Galbraith
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960cbf9519
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Add Scheduler wireframe.
Right now does nothing but has containing classes for process and thread
information.
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2023-05-18 12:43:53 -07:00 |
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Drew Galbraith
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4380590af2
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Add new and delete operator implementations to the kernel heap.
For now delete does nothing.
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2023-05-18 11:29:44 -07:00 |
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Drew Galbraith
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2d719d0443
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Add a bootstrap physical memory manager.
This will allow the real physical memory manager to use allocations.
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2023-05-18 11:00:05 -07:00 |
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Drew Galbraith
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0b7e667368
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Add a basic kernel heap object.
Currently allocation always fails because we don't
have a way to allocate a physical page.
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2023-05-18 10:59:39 -07:00 |
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Drew Galbraith
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45b5817a36
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Recursively map the PML4
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2023-05-18 02:00:01 -07:00 |
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Drew Galbraith
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b3f8cb9003
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Dump the memory map from limine.
Also adds the ability to print formatted messages.
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2023-05-18 01:16:53 -07:00 |
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Drew Galbraith
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9fc1aa15ef
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Add an interrupt descriptor table.
Set up a very basic handler for divide by zero and
general protection faults.
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2023-05-17 22:54:37 -07:00 |
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Drew Galbraith
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03fe4d8c2e
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Load our own GDT.
Replace the GDT from limine with our own.
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2023-05-17 21:41:08 -07:00 |
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Drew Galbraith
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872e6f3392
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Add a debug output utility.
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2023-05-17 20:42:59 -07:00 |
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Drew Galbraith
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e9705f7579
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Barebones Kernel Commit
Uses limine to boot off of a disk.
Outputs a character to the debug port.
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2023-05-17 20:20:53 -07:00 |