e769cb45a7
MemoryManager: add get_page_at and get_pages_at functions to map any physical memory at a fixed virtual address (inverse of get_mapping and get_mappings)
2022-10-01 12:12:50 +02:00
87f67b255e
Moon 0.7-dev
2022-09-29 20:09:39 +02:00
ef5994e389
Proper userspace program
2022-09-29 20:06:18 +02:00
522d74b65d
Add is_user_address and is_kernel_address functions
2022-09-29 19:30:42 +02:00
9716891eff
do not fault in the userspace demo >.<
2022-09-29 19:20:31 +02:00
f25014a8ed
refine syscalls
2022-09-29 19:17:43 +02:00
46f459337c
Interrupts: Remove ensure_handler and use a more reliable way of detecting if we are in a handler
2022-09-29 18:35:51 +02:00
6c036dfe99
Modify the userspace task
2022-09-27 19:51:01 +02:00
692221dd9e
GO FAST WHEEEEEEEEEEEEEEEE (pit tick 1 time per millisecond, so 1ms accuracy instead of 2ms like before)
2022-09-25 22:00:36 +02:00
40e8aa9ff6
Show something on the framebuffer on unsupported type, so that we can know something is going on
2022-09-25 22:00:00 +02:00
07d6fe388d
Fix naming
2022-09-25 21:43:28 +02:00
f1a7138568
User mode (with a few syscalls)
...
IT ACTUALLY WORKS NOW.
Why wasn't it working? Oh, because I was not setting already present page tables's permissions to user mode. Just a little bug. THAT I SPENT DAYS TRYING TO FIND
Anyways, it works now. Such a relief...
2022-09-25 20:35:05 +02:00
2b700f3c1d
Moon 0.6-dev
2022-09-25 18:16:49 +02:00
57bb1164e9
change 4 pages of stack per stack to a #define
2022-09-25 18:13:20 +02:00
d3527b8824
Use new and delete in Scheduler
2022-09-25 18:12:12 +02:00
ae9967c462
Add new and delete C++ operators
2022-09-25 18:12:03 +02:00
19dff40ee2
Scheduler: track total CPU time of tasks
2022-09-25 17:49:51 +02:00
3fd1b6773d
Panic: Only dump stack trace if InitRD is initialized
2022-09-25 17:41:34 +02:00
a078a11dde
Move PMM and VMM initialization into MemoryManager::init
2022-09-25 17:38:17 +02:00
0858db73bd
Add with_value_of and with_value to MSR
2022-09-25 17:29:33 +02:00
4e62566c48
Add with_value_of and with_value to MSR
2022-09-25 17:28:38 +02:00
aee4e55fdd
add a proper kernel panic
2022-09-25 16:56:00 +02:00
6fc7608c35
main: remove kmalloc/kfree example
2022-09-24 23:18:44 +02:00
059bf86ddf
Scheduler: use kmalloc and kfree
2022-09-24 23:18:33 +02:00
704a23d0ad
Sanity checks
2022-09-24 23:09:39 +02:00
6bd3529f32
Port liballoc to get proper kmalloc/kcalloc/krealloc/kfree functions.
...
Yes, that's not completely-from-scratch.
But let's be honest, am I going to do everything from scratch? Probably not. I'm not making my own bootloader.
And making a proper smaller-than-4-KB allocator is not something I want to do.
Plus, liballoc works perfectly in this rewrite, seeing as the MM code actually works, instead of leaking all your poor memory
And liballoc_{lock, unlock} can be actually defined, since we have spinlocks here!
2022-09-24 22:40:59 +02:00
2511b7d7a1
Add optional (compile-opt-in) debug logging to the MemoryManager (which helped catch the bug that got fixed in the previous commit)
2022-09-24 22:38:07 +02:00
a0af8fa432
QUICK BUGFIX: Shift PDE.Address to the left by 12 bits in VMM::getPhysical, to return the actual physical address
2022-09-24 22:35:19 +02:00
a2d23efd1b
Move files with their headers in include/misc/ into src/misc/
2022-09-24 21:46:09 +02:00
3891d0c52e
Rename KernelMemoryManager to MemoryManager
...
Kind of a more catchy name, isn't it?
2022-09-24 21:45:13 +02:00
57b330e907
get_symbol_name: handle case where sys/moon.sym is not present in the initial ramdisk
2022-09-24 21:38:36 +02:00
f640e3d248
symbol_strlen: stop at null terminator as well as newline
2022-09-24 21:36:29 +02:00
a9444ec5e3
Provide a default symbol for get_symbol_name
2022-09-24 21:31:03 +02:00
46b7dab847
Remove RangeAllocator and make a PMM namespace
2022-09-24 21:27:45 +02:00
198f4196c4
Add an MSR utility struct
2022-09-24 20:48:27 +02:00
56ace11bb1
Copy "hello.size" bytes from hello instead of 512, who knows what there is in there...
2022-09-23 18:03:20 +02:00
7b8d30aacd
Add a Device class to PCI and a PCITypes file for string names for PCI device types
2022-09-23 18:01:07 +02:00
8a93c53277
Add a Device class to PCI
2022-09-23 17:24:45 +02:00
c3e5251687
Some more userland and font failing
2022-09-23 16:41:43 +02:00
523b252960
Moon 0.4-dev
2022-09-22 08:17:02 +02:00
11dd165a8e
Scheduler: add proper support for user tasks (still faults though)
2022-09-22 08:14:04 +02:00
543fe2885f
Add support for user pages
2022-09-22 07:57:30 +02:00
ec01dc2927
Scheduler: Change fixed Task array for (highly inefficient) memory allocation, add userspace task support (which as memory is mapped kernel-only instantly crashes), and support for exiting a task (marking it as exited and reaping it later)
2022-09-21 21:06:00 +02:00
c6c2e286e7
Prepare our GDT for userspace
2022-09-21 21:04:15 +02:00
ee49caa6d3
Interrupts: ensure is_in_handler is true if we know we are in a handler
2022-09-21 21:03:49 +02:00
4401b31440
Remove ds from context, no need for it in x86_64, use ss instead
2022-09-21 21:03:24 +02:00
1b3b93d8bb
StackTracer: add a trace_with_ip that prints the symbol name of the saved instruction pointer, for use in interrupts
2022-09-21 21:00:15 +02:00
3a69551dcc
StackTracer: only trace frames within the kernel address space
2022-09-21 20:59:41 +02:00
d54ed0dc8b
Make ASSERT, PANIC and TODO show a backtrace and scheduler tid if initialized
2022-09-21 20:56:40 +02:00
af8e5aca64
Add basic PCI driver
2022-09-21 17:57:02 +02:00
49ddb47ad4
Reorganize structure
2022-09-21 17:56:53 +02:00
e83d4c8ac9
Use a faster PIT tick rate
2022-09-21 07:29:44 +02:00
4f360693bd
Make the demo reboot when you press a key
2022-09-20 20:51:59 +02:00
29f0253e5b
Little colorful demo
2022-09-20 20:49:31 +02:00
1dce3a0cf7
Give 1 tick of CPU time to the idle task
2022-09-20 20:48:49 +02:00
5a271eaab2
Moon 0.4-dev
2022-09-20 20:05:32 +02:00
ddbe9b8b8b
Few small adjustments to the scheduler
2022-09-20 20:02:08 +02:00
1c12cf016e
Add a Scheduler.
...
Finally.
Just Round Robin with sleeping, but it's still awesome. I think this can finish v0.3, with a few adjustments.
2022-09-20 19:58:04 +02:00
e6c6a1677a
Rename "SavedContext" to "Context"
...
Seemed like a more appropriate name.
2022-09-20 19:56:43 +02:00
063b6345ee
Make reboot and shutdown disable interrupts before proceeding
...
This is getting important now that I've made a Scheduler (yay!!) *will get added next commit*
2022-09-20 19:54:49 +02:00
5ee8e17b76
Ensure we are in an interrupt in the interrupt handler
2022-09-20 17:16:23 +02:00
d0d2d4381c
Add a is_in_handler function to validate being in an interrupt handler
2022-09-20 17:16:07 +02:00
3a796eb64c
Remove semicolon from macro
2022-09-20 16:56:43 +02:00
d1141dd713
Don't need this header
2022-09-20 16:55:32 +02:00
590740e72a
Change moon_version() to use a constant expression
2022-09-20 16:38:32 +02:00
1c1aa96293
Add a moon_version function that returns the full version string
2022-09-20 16:34:24 +02:00
6967fa9117
Update config.h to use a .cpp file that will be recompiled when it changes
2022-09-20 16:30:34 +02:00
15883c2dd3
Guard MOON_SUFFIX in config.h
2022-09-20 16:22:03 +02:00
7f1731ca2c
Moon 0.3-dev
2022-09-19 21:13:45 +02:00
ee8c2759a6
Got a stack tracer working!!
2022-09-19 21:11:43 +02:00
9d3030763b
We can fetch a symbol's name from its address!!
2022-09-19 20:54:05 +02:00
d79596f21b
Add a tool to auto-generate a symbol map, borrowed from SerenityOS :)
2022-09-19 20:35:24 +02:00
d8bfb76eef
Try to make TextRenderer work... still failing
...
I can now safely call try_initialize() in early_init though
2022-09-19 20:17:37 +02:00
86e4fce654
Separate conditions for easier debugging
2022-09-19 19:04:14 +02:00
31460fe148
I.... think I fixed the initrd code?
2022-09-19 17:06:08 +02:00
245d5e514d
Optimizations in Spinlock.asm
2022-09-19 16:36:34 +02:00
cb311c4981
Add initrd/boot/moon.elf and Luna.iso to the clean Makefile target
2022-09-18 20:20:51 +02:00
99e681aeb4
Forgot to add volatile
...
Did I check to see if it compiled before making the previous commit? Yes, of course, why are you asking? ...
2022-09-18 20:16:46 +02:00
d4a982306f
Add spinlocks
2022-09-18 20:15:19 +02:00
be31f2c017
Moon 0.2-dev
2022-09-18 17:16:44 +02:00
a42c4bd2da
Add -fno-omit-frame-pointer to CFLAGS
2022-09-18 17:13:56 +02:00
aad9aa1db5
Start the call stack with a null RBP before calling _start
2022-09-18 17:03:29 +02:00
4921db7b97
Clear rax register, just in case
2022-09-18 15:24:16 +02:00
cbac61d184
Rename _test_rdseed to asm_test_rdseed
2022-09-18 15:23:08 +02:00
48fae4a971
Cache RDSEED and RDRAND presence
2022-09-18 15:22:43 +02:00
183c3236d4
Fix terminology in keyboard IRQ
2022-09-18 09:47:58 +02:00
f7e7a6661d
Use kernel logging in interrupts instead of plain old printf()
2022-09-18 09:43:58 +02:00
783af21a7e
We are not using C
2022-09-18 09:43:29 +02:00
59ab8c016d
Load a bare-bones TSS for CPU0
2022-09-17 17:40:35 +02:00
355ca6ea9f
Change initrd/sys/config
2022-09-15 18:42:59 +02:00
9d19765b0e
Add the ability to toggle loglevels in KernelLog
2022-09-15 18:42:38 +02:00
18140a55ec
Make strstr take a const char* as a needle instead of a char*
2022-09-15 18:42:18 +02:00
0b278b2be2
Make divisor in PIT.cpp static
2022-09-15 18:12:43 +02:00
f33178a320
Log random number generation initialization
2022-09-15 18:07:17 +02:00
3e2c413b6a
add module to stack.cpp
2022-09-14 19:02:36 +02:00
efb28d3258
Randomness and stack protection!!
2022-09-14 18:54:40 +02:00
db4c8e96b8
commit
2022-09-14 17:55:24 +02:00
0cb59ee17f
please work please
2022-09-11 08:23:32 +02:00
d418842a48
Update TextRenderer to use kerrorln
2022-09-10 22:17:18 +02:00
f98a45aefe
Updated InitRD to use virtual mappings
2022-09-10 22:15:19 +02:00
4aeada05d3
Remove unused drawing files
2022-09-10 18:44:14 +02:00
6a0cf7cf98
New framebuffer class!!
2022-09-10 18:42:40 +02:00
e3e2952661
Consistent naming
2022-09-10 18:06:46 +02:00
fe672e6a18
Use appropriate logging functions
2022-09-08 17:03:17 +02:00
1ab0f7291b
Add kdbg and kdbgln
2022-09-08 17:02:40 +02:00
9de9eacb1d
add strstr
2022-09-08 17:02:16 +02:00
f3f9756106
Remove unused headers in main.cpp
2022-09-08 16:30:15 +02:00
276d20a33d
Remove log/Address.h, since Log.h has variadic functions now
2022-09-08 16:26:24 +02:00
d1498a5e82
Change module of RSDT from "acpi/rsdt" to "acpi"
2022-09-08 16:23:39 +02:00
76a3ceab32
Replace kinfoln with kwarnln where appropriate
2022-09-08 16:22:46 +02:00
3da3fd2c11
Update messages
2022-09-08 16:18:11 +02:00
929962efc9
Fixed size counting in RangeAllocator
...
Which was displaying VERY wrong sizes beforehand. (Number of regions * 4096 instead of number of bytes)
2022-09-07 20:01:44 +02:00
b4484e951d
LOTS MORE LOGGING. which is great, of course.
2022-09-07 19:41:08 +02:00
0cc3900e88
Make building with debug symbols conditional in the Makefile
2022-09-07 15:05:57 +02:00
c2391cee5d
Added config.h
2022-09-07 15:02:54 +02:00
aa6c578a3c
Fix bug in internal_printf
2022-09-07 15:02:38 +02:00
e936a143d3
MAKE LOG FUNCTIONS VARIADIC!!
2022-09-07 15:02:23 +02:00
1820286d8b
stuff
2022-09-07 10:33:22 +02:00
97aef95daa
Fix format specifiers
2022-09-06 18:31:27 +02:00
c9e13f0128
Add attribute(format) to *printf to detect ill-formed calls to those functions
2022-09-06 18:25:38 +02:00
bd0a24097f
Add a KernelMemoryManager namespace to wrap PMM + VMM
2022-09-06 18:08:15 +02:00
0fbc68ca88
Finish VMM
2022-09-06 13:49:17 +02:00
8bff2ee0f5
Add a RangeAllocator which serves as a physical memory allocator
2022-09-06 13:21:54 +02:00
716974a916
Add a minimal shutdown method, that only works on emulators (at least for now)
2022-09-06 12:13:43 +02:00
a8aca62771
Remove loop from the end of reboot since hang is now noreturn as well
2022-09-06 12:13:20 +02:00
003c730117
Make hang() noreturn
2022-09-06 12:12:55 +02:00
99192204fe
Update main.cpp with new functionality
2022-09-06 11:48:06 +02:00
a1659aa127
Add a reboot() function
...
This reboot function first tries to reboot using ACPI, then pulsing the CPU's RESET line through the keyboard, then triple-faulting. If we're still there, it halts.
2022-09-06 11:47:55 +02:00
aa673e1402
Add FADT header
2022-09-06 11:47:00 +02:00
5b132e3197
Fix FindTable method to work properly with RSDT instead of XSDT
2022-09-06 11:46:47 +02:00
f7f8c1068a
Move SDTHeader to separate file
2022-09-06 11:46:26 +02:00
78fe37ddb3
Move declaration of IDTR to header
2022-09-06 11:44:37 +02:00
6a6be3292d
Memory::get_system and Memory::get_usable
2022-09-05 17:13:12 +02:00
1367e88d88
Finally implement %l and %z format modifiers
...
Finally, we can use %zx with a 64-bit number instead of %x%x with 2 32-bit values split from a 64-bit number!
2022-09-05 16:59:45 +02:00
b47b86884f
Removed InitRD test code from main.cpp
2022-09-05 16:29:32 +02:00
1b727a66ea
Ready. Set. Go!
2022-09-05 16:13:51 +02:00
