5c4a756176
Fixed fatal error while loading modules
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strcpy() was called with a char instead of a char*, obviously causing a crash
2021-04-17 04:24:23 -05:00
Nathan Giddings
d0f9d026cc
Merge pull request #5 from ngiddings/pre-alpha
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Pre alpha
2021-04-17 03:46:34 -05:00
961139df9e
Improved kernel memory usage
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Moved base linear address to 0xFF800000
Kernel only reserves the page frames it actually needs
Memory for multiboot2 headers is freed
Video memory and APIC registers are dynamically mapped into linear addresses
2021-04-17 03:45:45 -05:00
b141582f40
Added very simple kernel memory allocator
2021-04-17 01:18:14 -05:00
b582c39ff8
Started work on process management
2021-04-17 01:00:28 -05:00
ce6371f0c3
Added ISR for preemption of processes
2021-04-17 00:59:15 -05:00
4bbe63819a
Added page_table firld to process_t
2021-04-17 00:58:10 -05:00
db280f3fad
Added new source files to Makefile.am
2021-04-17 00:57:50 -05:00
cb6d2681ef
Started code to manage kernel resource table
2021-04-17 00:57:37 -05:00
9630d0a396
Added load_program() function
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Builds program image from ELF file in memory
Fixed multiple definition error caused by constant in elf.h:
moved contant to elf.c
2021-04-17 00:56:44 -05:00
2d6fa0d163
Added functions to create and load process contexts
2021-04-17 00:55:05 -05:00
fdcdb9acab
Updated virtual memory manager
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Added page flags
Added function current_address_space()
Fixed create_address_space()
Renamed some fields in page_table_entry_t to fit naming scheme
2021-04-17 00:52:16 -05:00
6c047c6343
Remvoed unused dymamic memory allocator
2021-04-17 00:49:38 -05:00
8896c4313f
Fixed glitch in trim_map()
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Entries were not modified properly; only removals worked correctly.
2021-04-17 00:45:24 -05:00
6138766c49
Added sequence to remap PIC
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Wrote GDT code in C
Added routines to initialize GDT and IDT
2021-04-16 01:45:40 -05:00
8e6589b472
Added some test code to setup a timer
2021-04-15 07:23:19 -05:00
3e73c7c0ac
Fixed APIC register mapping
2021-04-15 07:22:58 -05:00
0c5d18ddc0
Added enum for timer interrupt vector
2021-04-15 07:22:26 -05:00
50fcaa2673
Added timer ISR
2021-04-15 07:22:01 -05:00
Nathan Giddings
d72c108f1b
Merge pull request #4 from ngiddings/pre-alpha
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Pre alpha
2021-04-15 05:56:49 -05:00
83abc11b09
Formatted header in README.md properly
2021-04-15 05:54:57 -05:00
Nathan Giddings
a42577d60e
Merge pull request #3 from ngiddings/migrate-to-c
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Migrate to c
2021-04-15 05:53:07 -05:00
3229f55164
Added some code in initialize() to test interrupts
2021-04-15 05:49:40 -05:00
c5e38801f3
Fixed the idt_info_t struct and lidt()
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Info was not loaded properly, causing crash
2021-04-15 05:49:11 -05:00
923057ee1c
Removed 'interrupt' attribute from isr_ap_start()
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Added message to division by 0 exception
2021-04-15 04:55:28 -05:00
ac0e5261ba
Implemented apic_send_ipi()
2021-04-15 04:51:57 -05:00
1e6b888515
Added msr.c to Makefile.am
2021-04-15 04:51:37 -05:00
d2617e4488
Wrote new ISR for AP entry
2021-04-15 04:51:23 -05:00
8eafcf899b
Wrote some simple MSR code
2021-04-15 04:44:41 -05:00
c47a3dd73b
Added apic.c to Makefile.am
2021-04-14 20:23:30 -05:00
8851243f19
Wrote empty definitions for some APIC functions
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Started x86 interrupt setup code
2021-04-14 20:23:13 -05:00
3130b07fd1
Removed generic_isr() definition
2021-04-14 03:39:25 -05:00
48c042ca5f
Added declaration for panic() function
2021-04-14 03:39:07 -05:00
507b0fa53e
Renamed ISR functions to fit convention
2021-04-14 03:25:55 -05:00
eef1741e16
Added enum listing x86 exception codes
2021-04-14 03:25:21 -05:00
29544b0eb8
Moved interrupt code to separate file.
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Added new source file to Makefile.am
2021-04-14 02:46:04 -05:00
4a8ca81a10
Started header for APIC structures
2021-04-14 02:25:57 -05:00
9f0867393f
Some cleanup in quark_x86.c
2021-04-14 00:52:56 -05:00
6f625451ca
Added new source files to Makefile.am
2021-04-14 00:52:29 -05:00
4c2ded8676
Fixed missing includes for multiboot2 files
2021-04-14 00:52:12 -05:00
61a50fef10
Inproved formatting on struct initializer
2021-04-14 00:12:02 -05:00
4e6f487a0a
Moved ISRs and multiboot2 code to separate files
2021-04-14 00:11:44 -05:00
dd188132b9
Moved x86 ISR stubs to quark_x86.c
2021-04-13 00:26:59 -05:00
4900febfd9
Fixed wraparound problem in compare_regions()
2021-04-13 00:25:34 -05:00
e6a417c822
Changed formatting flag used to print memory map
2021-04-13 00:21:36 -05:00
302ed3b816
Fixed issues with tabs and newlines in putchar()
2021-04-13 00:21:08 -05:00
c6467e20d8
Wrote partial printf implementation
2021-04-13 00:20:45 -05:00
e9ffd9d85c
Fixed incorrect memory type enum
2021-04-13 00:20:19 -05:00
cb7df05625
Added line to print character to screen after initializing
2021-04-12 15:52:32 -05:00
8d784364f8
Fixed value of pointer to video memory
2021-04-12 15:52:03 -05:00
