Bananymous
991ae4383a
Kernel/LibC: Implement fchmod
2024-08-25 15:07:42 +03:00
Bananymous
2ce7205c80
Kernel: Add command line option to disable debug printing
...
The whole system can crash when debug output and tty output are done at
the same time. This patch is just a hack to prevent the crash :D
2024-08-25 15:02:15 +03:00
Bananymous
fb35f06cf5
Kernel: Add better support for bootloaders loading the kernel
...
Before I assumed that bootloaders loaded the kernel at physical address
0, but this patch kinda allows loading to different addresses. This
still doesn't fully work as kernel bootstrap paging relies on kernel
being loaded at 0
2024-08-22 14:48:21 +03:00
Bananymous
abc788c756
Kernel: Improve output message when dumping all syscalls
2024-08-22 14:48:21 +03:00
Bananymous
63b616dc2e
Kernel: Hack non-blocking support for sockets
...
This is not thread safe and can still block if two programs refering to
the same socket try to read data at the same time
2024-08-22 14:48:14 +03:00
Bananymous
cba12efeb1
Kernel: Ignore optional_actions in SYS_TCSETATTR
...
Currently all terminals are syncronous, so the actions don't do anything
2024-08-22 14:47:54 +03:00
Bananymous
37cd4ed504
Kernel: Add support for CSI @, b, d to VirtualTerminal
2024-08-22 14:04:45 +03:00
Bananymous
869bba4dad
Kernel: Add check for panic in timer interrupt handler
...
Previously processors would not get notified about kernel panic if they
were idling
2024-08-22 14:03:03 +03:00
Bananymous
23194d1f53
Kernel: Implement basic random device to /dev/random
2024-08-22 14:02:26 +03:00
Bananymous
969563c06a
Kernel: Don't load AP init code to 0xF000, but relocate it later
...
This cleans up the kernel executable as bootloaders don't have to
load AP init code straight to 0xF000, but it will be moved there once
kernel is doing the AP initialization.
2024-08-21 13:37:50 +03:00
Bananymous
066e8e1cc2
Kernel: Remove unnecessary debug logging from VFS initialization
2024-08-18 20:51:10 +03:00
Bananymous
5cd7b40165
Kernel: Make BananBootloader info struct header compatible with C
2024-08-18 20:51:10 +03:00
Bananymous
c7b134ba4b
Kernel: Fix NVMe controller namespace numbering
...
namespace numbers were incrementing globally instead of per controller.
This led to two single namespace controllers creating nvme0n1 and
nvme1n2
2024-08-18 20:51:10 +03:00
Bananymous
ff62c262fe
Kernel: Fix PS/2 scancode set 2 keycodes for the bottom row keys
2024-08-18 20:51:10 +03:00
Bananymous
42e2c15e0c
Kernel: Add ps2=<scancode set> command line argument
...
This allows forcing specific scancode set on broken PS/2 emulations
2024-08-18 20:51:10 +03:00
Bananymous
40c6989374
Kernel: Implement AML ObjectTypeOp
2024-08-18 20:51:10 +03:00
Bananymous
71dc373610
Kernel: "Fix" AML _OSI string to return true for windows strings
...
This is the way its supposed to be done as other code paths are
untested...
2024-08-18 20:51:10 +03:00
Bananymous
0fa16cf982
Kernel: Fix and add some AML to_underlying functions
2024-08-18 20:44:51 +03:00
Bananymous
8902032b42
BuildSystem: Cleanup kernel cmake file
2024-08-18 20:44:12 +03:00
Bananymous
368f5e9799
Kernel: Add command lineoption `nousb` that will disable usb controller
2024-08-16 22:09:24 +03:00
Bananymous
b1fe24bb57
Kernel: Hack AML integers to work better
...
Something is trying to store into a constant integers. Just by copying
not returning any integers as constants fixes it xD
2024-08-16 13:04:52 +03:00
Bananymous
490a28ee7a
Kernel/AML: General cleanup and compliance improvements
2024-08-15 23:14:13 +03:00
Bananymous
75884ca6b8
Kernel/AML: Allow calling method through named objects
2024-08-15 23:13:32 +03:00
Bananymous
d729d7f570
Kernel: Implement AML storing to Buffer
2024-08-15 23:12:52 +03:00
Bananymous
6408bb2efa
Kernel: Add AML API for getting underlying value of nodes
2024-08-15 23:11:59 +03:00
Bananymous
d8dabab4fb
Kernel: Implement AML CopyObjectOp
2024-08-15 20:55:55 +03:00
Bananymous
4dc107f77a
Kernel: Fix AML Register/Reference accesses
2024-08-15 20:55:18 +03:00
Bananymous
eaf06d239c
Kernel: Cleanup and fix AML Method calls
2024-08-15 20:54:55 +03:00
Bananymous
d9b3a4bf77
Kernel: Add more conversions for AML Integer, Register, String
2024-08-15 20:51:04 +03:00
Bananymous
cf970d5914
Kernel: Add better conversion for AML Alias, Name and Reference
2024-08-15 20:48:35 +03:00
Bananymous
1cfe3dd4da
Kernel: Implement AML BreakOp and ContinueOp
2024-08-15 19:08:00 +03:00
Bananymous
51d1e47bfe
Kernel: Fix AML CreateFieldOp to take bit index instead of byte index
2024-08-15 19:05:58 +03:00
Bananymous
e0a447bfaf
Kernel: Add _GL to ACPI root namespace
2024-08-15 02:28:22 +03:00
Bananymous
3f5ee6f414
Kernel: Rewrite the AML conversion API
...
This doesn't currently make the interpreter any better, but it will make
further implementation easier to be spec (or hardware...) compliant
2024-08-15 02:25:45 +03:00
Bananymous
44d5c8c4b4
Kernel: Implement AML To{Buffer,Integer,String}Op
2024-08-14 20:28:32 +03:00
Bananymous
17b7e9e772
Kernel: Allow all named objects to fail cleanly if name exists
2024-08-14 20:28:00 +03:00
Bananymous
957df08932
Kernel: root command line option can be specified as an UUID
...
Format is the same as in linux
root=UUID=XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
This makes it easier to boot when computer has multiple disks installed
2024-08-14 13:23:27 +03:00
Bananymous
bb40069773
Kernel: Add nice debug prints for device addition/removal
2024-08-14 13:23:27 +03:00
Bananymous
37d5b60f5c
Kernel: Implement AML {Event,Reset,Signal,Wait}Op
2024-08-14 11:59:34 +03:00
Bananymous
feadea0e91
Kernel: Fix AML unaligned integer reads and buffer shifts over 32
2024-08-13 23:44:17 +03:00
Bananymous
f71a29b6c4
Kernel: Implement AliasOp for AML interpreter
2024-08-13 22:42:37 +03:00
Bananymous
ec4cfdee23
Kernel: Fix and cleanup a lot of AML code
...
Node now have APIs to convert them to buffer, integer and string. This
allows possibility to handle methods that need explicitly use one of the
overloads instead of integer.
This patch also adds handling of DebugOp. This is used quite heavily in
uACPIs test suite.
2024-08-13 22:42:37 +03:00
Bananymous
dd79db6383
Kernel: AML implement CreateFieldOp
2024-08-13 18:52:48 +03:00
Bananymous
723e458bd7
Kernel/Terminal: Update terminal color themes and fix TTY bright/dark
2024-08-12 21:15:55 +03:00
Bananymous
39be57424c
Kernel: Fix SYS_SEEK with SEEK_END
...
I was subtracting the offset from file end when I should have added it.
2024-08-12 19:13:27 +03:00
Bananymous
f37e1c2229
Kernel: Map .rodata as read only instead of read-write
2024-08-12 14:28:52 +03:00
Bananymous
4d1b32f770
Kernel: open does not need TTY_INIT to set the controlling terminal
2024-08-11 01:02:59 +03:00
Bananymous
a5a097fa4a
Kernel/LibC: Add initial pseudo terminal support
...
This patch implements posix_openpt() and ptsname()
grantpt() and unlockpt() are left in LibC as stubs, as posix_openpt
currently does all of the needed work.
2024-08-11 01:02:59 +03:00
Bananymous
ad645f31d0
Kernel/LibC: Add setsid()
2024-08-11 00:58:12 +03:00
Bananymous
bac3219a01
Kernel: Fix `Pipe::can_read_impl()`
...
The logic was inversed, which made all select calls report incorrectly
for pipes. This made terminal emulator just freeze.
2024-08-10 18:18:25 +03:00
Bananymous
09a527fb12
Kernel: Fix scheduler thread counter
...
I was actually never incrementing the counter :D
2024-08-10 18:18:25 +03:00
Bananymous
ed325b4a45
Kernel: Fix typo in userspace address validation
2024-08-09 16:52:57 +03:00
Bananymous
1c67b5e812
Kernel: Fix wait syscall to report status of exited children
2024-08-09 16:52:35 +03:00
Bananymous
b6c964c444
Kernel: Rewrite pipes
...
Pipes have now a fixed size buffer and pipe clone and close is working
again.
2024-08-09 16:50:19 +03:00
Bananymous
44f0ec601f
Kernel: Expose /proc/meminfo and fix /proc/<pid>/meminfo
...
Thread was unconditionally calling <stack>->size() without validating
that the stack actually exists
2024-08-09 15:58:56 +03:00
Bananymous
2a659a9d03
BuildSystem: Fix enable sse definition
...
__enable_sse was never actually defined for any targets. This also adds
__arch definition for libc (so `utsname` works).
2024-08-09 15:52:42 +03:00
Bananymous
7e7c3a1bb3
Kernel: VirtualTTY now handles dark colors
...
I have seemingly forgot to add these before
2024-08-09 15:52:42 +03:00
Bananymous
7afdfb150f
LibC: Rewrite sigprocmask in terms of pthread_sigmask
...
Also don't fail SYS_SIGPROCMASK if how is invalid and set is NULL.
2024-08-07 17:01:35 +03:00
Bananymous
0a7c316ffb
Kernel: Fix race condition when blocking threads
...
If thread was blocked, but had not reached block queue, you might
already get an unblock request which would fail on an assertion.
If blocked thread was load balanced to another processor and unblocked
simultaneously, there was a race condition.
2024-08-05 20:14:13 +03:00
Bananymous
e72424e01a
Kernel: Implement ANSI CSI M and fix ANSI CSI L
...
There are not maybe not correct, but work much better than the old ones
2024-08-05 15:53:01 +03:00
Bananymous
a578527012
Kernel/LibC: Implement ioctl(TIOCGWINSZ)
...
This allows ncurses to get the window size!
2024-08-01 22:56:26 +03:00
Bananymous
af78a2d080
Kernel: Implement ANSI CSI L for TTY
...
vim seems to be using this, so I decided its needed
2024-08-01 22:08:46 +03:00
Bananymous
840000d02b
Kernel: Make sure null signal is not send with kill()
2024-08-01 21:41:54 +03:00
Bananymous
9ea4c777ad
Kernel: TTY now handles ESC key presses
...
This allows exiting vim :D
2024-08-01 21:41:11 +03:00
Bananymous
a33b63d066
Kernel/LibC: Implement alarm() and setitimer()
...
This makes vim able to start!
2024-08-01 21:09:56 +03:00
Bananymous
da3b30cd94
Kernel: Add macro to dump all syscalls and their return values
2024-08-01 18:21:49 +03:00
Bananymous
4599e1dec5
Kernel: Make schedler not crash when unblocking active thread
...
This was happening when sending signals to processes that were currently
running.
2024-08-01 18:21:49 +03:00
Bananymous
6de350ce9d
Kernel/LibC: Cleanup, fix and implement a lot of signal code
...
This patch implements sigsets and some of their usages
2024-08-01 17:01:18 +03:00
Bananymous
838d31fa41
Kernel: Implement more POSIX compliant open() and openat() syscalls
2024-08-01 15:35:02 +03:00
Bananymous
7c3b6307d9
Kernel: Cleanup USB initialization code
2024-07-31 23:23:44 +03:00
Bananymous
f0be4f86a6
LibC/Kernel: Implement access
2024-07-30 11:51:07 +03:00
Bananymous
e5bb843059
LibC/Kernel: Implement ttyname
2024-07-30 11:41:18 +03:00
Bananymous
681d8327f5
LibC/Kernel: Cleanup termios code
...
This is still not correct, but much better than it used to be
2024-07-30 11:10:43 +03:00
Bananymous
9bc02c81f8
Kernel: Map DMA and PCI MMIO as uncached
2024-07-30 11:10:08 +03:00
Bananymous
bb1738db8c
Kernel: Make thread unblocking O(1)
...
This is still bit broken. VirtualBox seems to freeze sometimes, but I
could not recreate this on qemu (with and without kvm) or real hardware.
2024-07-24 00:31:01 +03:00
Bananymous
9548c592a3
Kernel: Always print basic info about xHCI controller
...
Its nice to see that the controller is getting initalized
2024-07-23 09:09:08 +03:00
Bananymous
cda0276d39
Kernel: Force PCI irq line usage when not using APIC
...
afaik PIC does not support MSI
2024-07-23 09:08:00 +03:00
Bananymous
539afb329a
Kernel: All processors use LAPIC timer when running with APIC
...
This makes scheduler preemption much cleaner as bsb does not have to
send smp messages to notify other processes about timer interrupt.
Also PIT percision is now "full" 0.8 us instead of 1 ms that I was using
before.
2024-07-23 02:28:52 +03:00
Bananymous
3e0150f847
Kernel: Pressing F1 now toggles rendering of CPU loads to the terminal
...
This can be nice for seeing the performance and problems on the load
balancing algorithm.
2024-07-22 00:43:13 +03:00
Bananymous
f8261c60c0
Kernel: Rewrite the whole scheduler and re-architecture SMP handling
...
Change Semaphore -> ThreadBlocker
This was not a semaphore, I just named it one because I didn't know
what semaphore was. I have meant to change this sooner, but it was in
no way urgent :D
Implement SMP events. Processors can now be sent SMP events through
IPIs. SMP events can be sent either to a single processor or broadcasted
to every processor.
PageTable::{map_page,map_range,unmap_page,unmap_range}() now send SMP
event to invalidate TLB caches for the changed pages.
Scheduler no longer uses a global run queue. Each processor has its own
scheduler that keeps track of the load on the processor. Once every
second schedulers do load balancing. Schedulers have no access to other
processors' schedulers, they just see approximate loads. If scheduler
decides that it has too much load, it will send a thread to another
processor through a SMP event.
Schedulers are currently run using the timer interrupt on BSB. This
should be not the case, and each processor should use its LAPIC timer
for interrupts. There is no reason to broadcast SMP event to all
processors when BSB gets timer interrupt.
Old scheduler only achieved 20% idle load on qemu. That was probably a
very inefficient implementation. This new scheduler seems to average
around 1% idle load. This is much closer to what I would expect. On my
own laptop idle load seems to be only around 0.5% on each processor.
2024-07-22 00:33:50 +03:00
Bananymous
9f90eeab05
Kernel: Fix stack pointer OOB check
...
i686 does not push the stack pointer on interrupt when no CPL change
happens.
2024-07-22 00:27:08 +03:00
Bananymous
1ee37cb671
Kernel: Make sure stack is aligned on interrupts for i686 target
...
I just realized that only x86_64 aligns stack pointer when interrupt is
triggered.
2024-07-22 00:10:42 +03:00
Bananymous
8fe798de6d
Kernel: Make PIT counter atomic with spinlock
2024-07-21 18:56:41 +03:00
Bananymous
86b6714777
Kernel: Add command line option to boot without smp
2024-07-21 17:40:57 +03:00
Bananymous
77b5e6d44a
Kernel: Make ATABus use BAN::Atomic<> instead of gcc builtin atomics
2024-07-21 17:39:26 +03:00
Bananymous
ffe73165f9
Kernel: Fix PCI typo serail -> serial
2024-07-21 17:36:29 +03:00
Bananymous
96c7e9e29d
Kernel: Cleanup VirtualRange code
...
Virtual range does not need to look into the page table for mapped
physcial pages. It can (and should) just keep track of them itself.
2024-07-21 17:35:07 +03:00
Bananymous
02051ed60f
Kernel: Move keyboard kernel panic to the general input device
...
This will allow command to work without requiring it per keyboard driver
2024-07-21 17:33:38 +03:00
Bananymous
f49689caac
Kernel: Implement API for sending IPIs for only one processor
...
Also move the spin wait to check for pending IPI sends to the start of
ipi sending function. There is no need to wait for IPI send succeeding
right after it. It is enough to make sure there are not multiple IPIs
being sent at the same time.
2024-07-21 17:30:59 +03:00
Bananymous
974b9b992d
Kernel: Fix process exiting infinite loop
...
If process was exiting and had a process waiting for it and that waiting
process got interrupted, the exiting process could never exit.
2024-07-18 21:40:44 +03:00
Bananymous
4b917390ac
Kernel: Fix sse state saving
...
This was broken when I added SMP support. This patch makes sse kind of
dumb as it is saved and restored on every interrupt, but now it at least
works properly... I'll have to look into how sse can get optimized
nicely with SMP. Simple way would be pinning each thread to a specific
processor and doing pretty much what I had before, but sse thread saved
in processor rather than static global.
2024-07-16 23:15:11 +03:00
Bananymous
7a0fb9a57f
Kernel: Fix TTY scroll clearing first and/or last characters from line
2024-07-16 22:49:49 +03:00
Bananymous
58fcd2b2fe
Kernel: Fix multi-interface USB device initialization
2024-07-16 22:29:18 +03:00
Bananymous
e30952efee
Kernel: Implement key repeating for USB keyboard
...
USB keyboards don't send repeating keys automatically, so it has to be
emulated in software.
2024-07-16 11:54:57 +03:00
Bananymous
1337758660
Kernel: Make USB HID interfaces configure all endpoints
2024-07-16 00:23:26 +03:00
Bananymous
339e8a7910
Kernel: Fix USB keyboard state updating with variable reports
2024-07-16 00:03:00 +03:00
Bananymous
a60b460701
Kernel: Update USB HID code to support multiple top-level collections
...
This allows me to use my laptops own keyboard!
2024-07-16 00:01:53 +03:00
Bananymous
a5cb4057f9
Kernel: Implement unified input files for device hot-plugging support
...
/dev/keyboard and /dev/mouse can be read for events from any attached
keyboard or mouse respectively. This makes device hot-plugging support
pretty much automatic for TTY, GUI, and whatever takes input.
2024-07-15 22:11:15 +03:00
Bananymous
9d7f97ccd5
Kernel: Implement DevFileSystem::remove_device
...
This function cleanly removes the devices from the whole filesystem.
USB devices are now removed from the filesystem as soon as they are
destroyed.
2024-07-15 22:10:42 +03:00
Bananymous
0578d41500
Kernel: Implement WriteCombining memory
...
This makes framebuffer much faster on real hardware
2024-07-15 22:09:09 +03:00