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Author SHA1 Message Date
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bfd0595926 Slowly continuing the work 2016-07-08 17:57:09 -07:00
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38775a235f CHEC 2016-07-01 02:15:07 -07:00
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7a164ce92a [MH] 2016-06-26 00:00:35 -07:00
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f9b3df8b60 VMM half-done. PMM refactored. Haven't got a chance to touch the HAL yet. 2016-06-25 14:40:47 -07:00
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8da028f518 Eventually went with not using in-place linked list for PMM (Don't really want to mix up PMM and VMM). 
So yeah, now keep trace of those physical pages on kernel heap, Windows does that, linux does that, I have to do that since there are more attributes(paged/non-paged) that the kernel requires.
Hmm finished PMM alpha and redefined all those PMM/VMM interfaces.
The code is still broken right now.
 2016-06-25 00:25:54 -07:00
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be746b4f6f Figuring out PMM/VMM and ASM. 2016-06-24 18:47:29 -07:00
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af7401a7ed Keep it up 2016-06-23 18:48:34 -07:00
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86c042c927 Merge commit '92782893f0753cd429db6179724a7638407ce9e5' 2016-06-22 21:50:47 -07:00
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6a971cc650 Implementing H-K interface according to the wiki. 2016-06-22 21:50:29 -07:00
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92782893f0 Update Readme 2016-06-22 18:40:27 -07:00
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59bac9bf2c We don't need buddy allocator... 2016-06-19 21:11:06 -07:00
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8ef4b18684 Actually buddy allocator is good.... 2016-06-17 02:18:07 -07:00
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0b6b0a46b4 not quite working stuff. Rethinking memory allocator. Maybe not buddy allocator. Basically use salloc for heap for now and talloc with O(log n) for system page allocation. A linear external allocator is not necessarily needed. Todo: finish talloc and add lock/alignment to salloc 2016-06-16 18:13:57 -07:00
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95bb791d71 LALLOC coming. Need to make salloc and lalloc thread-safe. 2016-06-16 00:23:06 -07:00
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22ad3c25c2 Restructure kernel (separate modules to be shared + private) and defined/implemented more HAL interrupt APIs. 2016-06-15 00:29:46 -07:00
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0188fe66a5 Push missing write/read ports w/ diff operand sizes. 2016-06-13 23:57:38 -07:00
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b2254e207d Interrupt working (Except that I need to remap PIC). 
1. Fix a stupid mistake in idt dispatch table (IDT_ENTRY_NUM instead of IDT_ENTRY_SIZE)!
2. Figured out that before enabling APIC, the PIC is not completely disabled/remapped. Took hours to debug why immediately after enabling interrupt, a double fault happens when executing "mov eax, 0". Turned out that PIC maps timer interrupt to int vet 8, which is double fault in the vector table. The double fault normally pushes an error code 0, the ISR is expecting the error code but the timer interrupt does not push an error code thereby screwing up the interrupt stack completely. The kernel runs normally after "sti" after changing the int 8 vector to just "iretq". (Remapping the PIC: http://wiki.osdev.org/I_Cant_Get_Interrupts_Working#I.27m_receiving_EXC9_instead_of_IRQ1_when_striking_a_key_.3F.21). Oh FML, hours wasted..
 2016-06-13 23:33:31 -07:00
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bc49a854dd Set up interrupt dispatching 
Set up APIC. Timer setup atrociously close.
Bochs keeps giving the god damn triple fault (IDT broken)??
 2016-06-12 21:11:38 -07:00
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8d7590ace4 NOT WORKING 2016-06-10 21:16:51 -07:00
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41aecc69f1 NOT WORKinG 2016-06-05 16:37:29 -07:00
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8ebd691e1a FIX bochs 2016-06-05 01:20:39 -07:00
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a3b0d89139 Python please fk off 2016-06-05 01:09:01 -07:00
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c98c7c6c98 Added information request 2016-06-04 22:33:14 -07:00
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32259f3dc7 Added boots compilation stuff. Although bochs keeps seg faulting (lol wut) 
Now makefile generates disasm for debugging
 2016-06-04 16:14:50 -07:00
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2139c367d9 Fixed x86 2016-06-04 13:50:53 -07:00
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ac875806d6 Structural Change 2016-06-04 02:51:14 -07:00
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e53e396556 [RUNNING] Structural and boot change: 
1. Changed to multiboot2 complaint
2. Separated modules (hal, kernel, test, common)
3. Rewrite makefile/linker script/ grub.cfg to adapt changes.
 2016-06-04 02:41:56 -07:00
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2475039543 NOT WORKING!!!! 2016-06-01 19:16:20 -07:00
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24a458858d Not working.... A lot more to go 2016-06-01 00:43:52 -07:00
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eb88af7d33 NOT QUITE WORKING YET 2016-05-31 22:00:29 -07:00
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4410fb50fa NOT working balloc 2016-05-26 14:00:48 -07:00
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f6e21df5d2 GPL v3 2016-05-24 00:27:26 -07:00
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0c48e9fa1c salloc test cases added and passed. 2016-05-24 00:10:32 -07:00
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bd204b40f2 Refactored avl tree delete sucessor implementation and entry->node 2016-05-23 17:57:38 -07:00
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06a8250d48 renaming avl tree entry to node 2016-05-23 13:45:03 -07:00
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6133063fb0 AVL tree apocalypse test 2016-05-23 12:36:41 -07:00
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05695f2626 Test Driver 
Got a test driver for module tests. Gotta make sure the basic building blocks work first lol.
Will add salloc test soon.
 2016-05-22 20:19:56 -07:00
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dddcd487a2 AVL Tree Test 
1. Added test for avl insertion and deletion (core functionalities).
2. Suppressed GCC's retarded multiline comment warnings.
3. Increased kernel heap size from 4k to 8k.
TODO:
1. Write test for salloc.
 2016-05-22 01:24:08 -07:00
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44602ecf29 1. Refactored the file structure. 
2. Refactored all include directories.
3. The Integrated linked_list and salloc are working. Need to write test for AVL tree and salloc.
 2016-05-21 18:54:29 -07:00
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cd5d08fa1d Refactoring AVL tree to accept duplicate values so that it can be actually used as a priority queue. 2016-05-20 12:07:11 -07:00
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3bfa585967 Test now cleans up memory. Got rid of a redef of a macro. 2016-05-19 17:34:55 -07:00
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13843b16bc Added linked_list_search API. Refactored linked list implementation and testing (now much better). 2016-05-19 17:18:27 -07:00
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d6f2342d05 Rewrite linked list library. Much more APIs, more graceful code and better test cases. 2016-05-17 22:43:48 -07:00
Siyao Zhao
9ca5b1aa16 Development: 
1. Intergrated my salloc allocator
2. hal.c: Got rid of some gcc warnings, mainly int -> pointer.
3. entry.asm: 64-bit int immediate moved to a reg first then anded with another reg.
Refactoring:
1. Got rid of kernel_status_t, IN, OUT, OPT. secX does not have to be Windows does it?
2. Renamed _KERNEL_ABI to SAPI.
3. Refactored library functions / interfaces to as "static" and "_" as possible
4. Restructured "common" folder
 2016-05-17 12:03:18 -07:00
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fc241dc76f Fixed 2 bugs in alloc library. Now should be working. 2016-05-17 01:09:52 -07:00
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9e96b66a08 Proc control block 
Primitive code for the allocation library
 2016-05-16 00:34:41 -07:00
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1ba3afd68a Update ReadMe 2016-05-11 15:40:02 -07:00
hyperassembler
d85a005411 ffff 2016-03-04 20:49:36 -05:00
hyperassembler
6088802c06 Linked list interface change 2016-03-04 17:20:48 -05:00
hyperassembler
93cd12690c [IN PROGRESS] Added hal_interlocked_exchange and implemented spin locks in C code. Reverted some kernel_status_t changes. 2015-11-14 17:53:30 -05:00