6f8fce94a0
Kernel: Fix PCI bugs
...
IO BarRegion used vaddr instead of the correct paddr. Add API for
memory region iobase query.
2023-10-16 16:50:49 +03:00
31aa157201
Kernel: Don't require framebuffer
...
Initializes virtual tty only if framebuffer is initialized
2023-10-16 01:44:54 +03:00
5977341610
Kernel: PCI checks if ethernet device is E1000 before initialization
...
I used to treat all ethernet deivices as E1000 but now it is actually
verified before initialization
2023-10-16 01:44:54 +03:00
76f17bd569
Kernel: PCIDevice stores its vendor id and device id
2023-10-16 01:44:54 +03:00
dafc016293
Kernel: Clear TTY when setting as current
...
Actually this should replace from old buffer, but this works
for now.
2023-10-13 17:20:26 +03:00
c7b6fc950a
Kernel: Don't crash if header type != 0 in bar region creation
...
Also remove spammy debug printing
2023-10-13 16:32:32 +03:00
45a6783c3d
Kernel: Cleanup GDT code
2023-10-13 16:18:22 +03:00
6b180da4e8
Kernel: Separate scheduler execution and stack loading
...
Not sure if this is actually needed, but this allows actual
executing function to be in clean environment
2023-10-13 16:17:27 +03:00
cf4f5f64a5
Kernel: add NEVER_INLINE and make Interruptable not constructable
2023-10-13 16:17:27 +03:00
5630f64175
Kernel: Add 16 more irq handlers
...
IDT will now panic if trying to assing handler for non supported
irq.
2023-10-13 16:17:27 +03:00
1d61bccfc3
Kernel: Debug temporary debug print just to beginning when full
2023-10-13 12:43:52 +03:00
f842a9255f
Kernel: Allow getting ACPI headers with same signature
2023-10-13 11:24:21 +03:00
72f3c378dd
Kernel: Fix PhysicalRange mapping size
2023-10-13 03:45:01 +03:00
39be6ab099
Kernel: Add temporary terminal output before controlling terminal
...
Starting work on getting this boot on real hardware.
2023-10-13 03:31:36 +03:00
773dcdd3a2
Kernel: Check whether ELF address space can be loaded
...
Before reserving address space in SYS_EXEC verify that ELF address
space is actually loadable. For example when trying to execute the
kernel binary in userspace, binarys address space would overlap with
current kernel address space. Now kernel won't crash anymore and
will just send SIGKILL to the process calling exec*().
2023-10-12 22:59:36 +03:00
a2b5e71654
Kernel: Implement AHCI driver
...
SATA drives can now be used with banan-os. This allows much faster
disk access (writing 10 MiB from 30s to 1.5s). This can definitely
be optimized but the main slow down is probably the whole disk
structure in the os.
AHCI drive is now the default when running qemu.
2023-10-12 21:53:48 +03:00
d3e5c8e0aa
Kernel: Generalize ATA device and cleanup code
2023-10-12 21:35:25 +03:00
f4b901a646
Kernel: Add Timer::ns_since_boot()
2023-10-12 21:16:39 +03:00
790064d248
Kernel: Add vaddr/paddr conversion functions to DMARegion
2023-10-12 15:20:05 +03:00
ab8b77406d
Kernel: PCI can now get interrupts for devices
2023-10-11 22:18:58 +03:00
1b9e14a53b
Kernel: PCI cleanup PCI::Device API
2023-10-11 21:52:08 +03:00
521513bed2
Kernel: make DMARegion::create static and fix mapping
2023-10-08 18:18:36 +03:00
400db176d1
Kernel: fix some math in physical ranges
...
I allocated 1 bitmap page per 8 data pages. Bitmap page can actually
store 8*PAGE_SIZE data pages.
Also properly set last bits in bitmap. I did not care about endianness
but now we set the bits on unsigned long longs instead of bytes.
2023-10-08 13:25:34 +03:00
211cad03ff
Kernel: Implement bare boness DMA Region
...
This does nothing but allocate contiguous physical and virtual memory
and map it as CacheDisable. Also memory is automatically freed RAII style.
2023-10-08 02:57:22 +03:00
8a9816d6e0
Kernel: Add API for getting contiguous physcial pages
...
This will be used to create DMA regions.
2023-10-08 02:57:22 +03:00
03d2bf4002
Kernel: Rework physical memory allocation
...
PhysicalRange is now much simpler bitmap. This makes expanding
PhysicalRange API much easier.
2023-10-08 02:50:23 +03:00
f071240b33
Kernel: Fix PCI BarRegion offsets
...
Calculations accidentally assumed bar registers are 8 byte instead
of 4.
2023-10-08 02:50:23 +03:00
27364f64a6
Kernel: Rework whole ATA driver structure
...
Make ATA driver more compatible when we are adding SATA support
2023-10-08 02:50:23 +03:00
bcf62c5f2e
Kernel: Rework interrupt mechanism
...
All interruptrable classes now inherit from Interruptable which
has methdo handle_irq which is called on a interrupt.
2023-10-05 18:53:45 +03:00
4d6322ff9c
BuildSystem: Don't strip kernel
2023-10-05 18:52:44 +03:00
Bananymous
b712c70c75
Kernel: Expose command line and environment to /proc
2023-09-30 23:01:33 +03:00
Bananymous
797ca65c66
Kernel: Add physical memory info to /proc/{pid}/meminfo
2023-09-30 22:11:45 +03:00
Bananymous
a511441f7e
Kernel: /proc/{pid}/meminfo now reports per process memory usage
2023-09-30 21:20:18 +03:00
Bananymous
cd61d710df
Kernel: Add procfs that contains only pids
2023-09-30 21:19:36 +03:00
Bananymous
f88ad7efcd
Kernel: All process' memory areas can report their virtual mem usage
2023-09-30 21:15:46 +03:00
Bananymous
d883d212b1
Kernel/LibC: dirent now contains file type
2023-09-30 20:46:57 +03:00
Bananymous
dedb2a2399
Kernel: RamInode verifies that you have not specified mode type
...
This is kinda weird behaviour, but it ensures the user cannot
create e.g. CharacterDevice with mode having IFLNK.
The Inode overrider is the only one setting the mode.
2023-09-30 20:46:57 +03:00
Bananymous
8604c55de8
Kernel: Add API for RamDirectoryInodes to delete containing inodes
2023-09-30 19:22:30 +03:00
Bananymous
e949e8550c
Kernel: Rework RamInode API
...
RamInode is now a general RamInode with no data. RamFileInode is now
a inode for regular files. This is much cleaner and more intuitive
since there is no reason for most non-regular inodes to hold data
Vector.
2023-09-30 19:22:30 +03:00
Bananymous
f953f3d3ff
Kernel: Implement MAP_SHARED for regular files
...
Every inode holds a weak pointer to shared file data. This contains
physical addresses of pages for inode file data. Physical addresses
are allocated and read on demand.
When last shared mapping is unmapped. The inodes shared data is freed
and written to the inode.
2023-09-29 18:59:20 +03:00
Bananymous
9fc75fe445
Kernel: Don't write to stat_loc on SYS_WAIT if it is null
2023-09-29 18:31:44 +03:00
Bananymous
db5d6a7f80
Kernel: Implement MAP_PRIVATE file mappings
...
mmap() now supports mapping files with MAP_PRIVATE.
2023-09-29 17:23:42 +03:00
Bananymous
4a92f44cf6
Kernel: Implement new abstract MemoryRegion
...
MemoryBackedRegion now inherits from this and is used for private
anonymous mappigs. This will make shared mappings and file backed
mappings much easier to implement.
2023-09-29 16:18:23 +03:00
Bananymous
603fc200e6
Kernel: Add some sanity assertions/functions
2023-09-29 02:03:19 +03:00
Bananymous
c11e84b248
Kernel: Use the new on demand ELF structure
...
All executable files are now read from disk and paged on demand.
This was a big rewrite of the old ELF library but in the end
everything seems much cleaner, since all the old functionality was
not actually needed for execution.
I have to do some measurements, but I feel like memory usage dropped
quite a bit after this change.
2023-09-29 02:00:10 +03:00
Bananymous
f4049be975
Kernel: Fix off by one error when calculating pages in range
2023-09-29 01:56:15 +03:00
Bananymous
6cf7e01fe9
Kernel: Don't map interrupt stack as userspace accessable
2023-09-28 21:58:24 +03:00
Bananymous
b51d2f5295
Kernel: mmap regions are now demand paged
...
mmap will not actually take any memory unless you use the given
memory.
2023-09-28 21:07:14 +03:00
Bananymous
a66c3bdae5
Kernel: Remove duplicate code in VirtualRange::create_to_vaddr_range
2023-09-28 13:59:49 +03:00
Bananymous
547eabb403
Kernel: Reboot will now always succeed
...
If acpi reset fails, we forcefully trigger a triple fault to restart
the system.
2023-09-28 13:53:03 +03:00
