458a362f98
Kernel: Allow kernel to pass arguments to init process
2024-11-17 22:38:02 +02:00
5e8fdc997a
Kernel: Prevent userspace from overwriting CPU load memory
2024-11-17 20:15:28 +02:00
0228cd4f31
Kernel: Increase userspace stack size and decrease kernel stack
...
Quake II needs a lot of stack, it was overflowing my 256 KiB stack so
this patch doubles that, so Quake II can run!
Also every thread had 256 KiB kernel stack. This is unnecessarily large
and now dropped to 32 KiB.
2024-11-14 21:03:04 +02:00
1838ea5c30
Kernel: Fix pseudo terminal leaks
2024-11-04 15:35:07 +02:00
a3f41fd4d9
Kernel: Cleanup disk cache
...
Add missing include and cleanup code calling automatic disk sync.
2024-11-03 20:28:15 +02:00
f4be37700f
Kernel/userspace: rework floating point math
...
SSE is now unconditionally enabled any where and most of math.h is now
actually implemented. using __builtin_<func> lead to many hangs where
the builtin function would just call itself.
2024-11-03 20:28:15 +02:00
8fd0162393
Kernel: Rewrite x86_64 page tables to use HHDM instead of kmalloc
...
This allows page tables to not crash the kernel once kmalloc runs out of
its (limited) static memory.
2024-10-14 11:40:30 +03:00
f0b18da881
Kernel: Add kmalloc helper APIs
2024-10-14 11:39:04 +03:00
5f63ea8f8a
Kernel: Add CPUID check for 1 GiB page support
2024-10-14 11:38:03 +03:00
2b43569927
Kernel: Use enums in boot info instead of magic values
2024-10-14 11:36:51 +03:00
55fbd09e45
Kernel: Rewrite physical memory allocation with PageTable::fast_pages
2024-10-14 11:32:54 +03:00
2d11ce9669
Kernel: Fix interrupt system
...
I had not understood how MSIs work and I was unnecessarily routing them
through IOAPIC. This is not necessary and should not be done :D
Also MSIs were reserving interrupts that IOAPIC was capable of
generating. Now IOAPIC and MSIs use different set of interrupts so
IOAPIC can use more interrupts if needed.
2024-09-27 15:31:31 +03:00
39802b56c1
Kernel: Allow SYS_EXEC to fail at any point
...
This patch builds new executable image to another pml4 structure and
only after everything is validated will current context be replaced.
This allows exec to fail "late" where previously it would panic the
kernel or kill the process. This allows graceful handling of exec
failures in userspace!
2024-09-24 16:29:38 +03:00
ebb87ccdde
Kernel: Add asserts for overflow checks with ms -> ns conversions
2024-09-24 16:28:44 +03:00
f0e55938c1
Kernel: Allow initial binding of threads to specific processor
2024-09-24 16:27:40 +03:00
348d04f7f5
Kernel: Implement static Process::kill()
...
This allows killing processes even when there does not exist a current
thread.
2024-09-24 13:16:43 +03:00
d59463d11b
Kernel: Fix TTY reading one keyevent after disabling input handling
2024-09-22 17:13:10 +03:00
23d6205659
Kernel: Move DEBUG_* macros to centralized Debug.h
...
This makes toggling debug info much easier
2024-09-20 11:00:07 +03:00
b8622f2b4b
Kernel: Implement simple RTL8169 driver
...
This allows me to use internet when running banan-os on my hardware!
2024-09-19 22:58:03 +03:00
a489be0e05
Kernel: Allow parallel LAPIC timer initialization with HPET
...
HPET supports reading LAPIC counter without locks, so it can be done in
parallel. This makes booting much faster. Previously initializing every
timer took 100 ms, so 16 CPUs took total of 1.6 seconds. This allows
doing it all in 100 ms.
2024-09-19 14:41:59 +03:00
8e08046519
Kernel: Add asserts about having locked TTY's write lock
...
This for some reason fixes booting on real hardware? :D
2024-09-18 00:56:48 +03:00
999eb53364
Kernel: Release debug lock if its locked during kernel panic
...
Also kernel panic now prints if it had lock
2024-09-18 00:56:02 +03:00
b779b3cf2d
Kernel: Move file finding code to a helper
2024-09-17 18:52:52 +03:00
e431e90b20
Kernel/LibC: Implement all chown family function with fchownat
2024-09-17 18:35:01 +03:00
4aa466b948
Kernel/LibC: Implement all chmod family functions using fchmodat
2024-09-17 17:19:26 +03:00
3666525d24
Kernel/LibC: Implement readlink in terms of readlinkat
2024-09-17 16:38:15 +03:00
f1a4bbce53
Kernel/LibC: Implement all stat family functions with fstatat
...
This patch gets rid of 2 unnecessary syscalls!
2024-09-17 16:38:01 +03:00
708a720d9d
Kernel: Remove SYS_OPEN
...
This can be done with SYS_OPENAT with fd set to AT_FDCWD
2024-09-17 16:16:47 +03:00
d88ee5c9ee
Kernel/LibC: Implement creat with open
...
This allows getting rid of unnecessary SYS_CREATE. Directory creation
still has its own syscall, but I could combine it with SYS_OPEN also.
2024-09-17 15:55:53 +03:00
d4ea720239
Kernel: Don't crash the kernel if ext2 encounters disk error
...
This will most likely result in a corrupted filesystem, but crashing the
kernel is too much :D
2024-09-17 15:54:33 +03:00
a084f83f4c
Kernel: Rework kernel-side ELF loading
...
ELFs are now loaded as MemoryRegions so they don't need special handling
anywhere. This also allows file backed COW optimizations to work. This
was not the case before.
This patch removes now obsolete LoadableELF and unused ELF files from
LibElf.
2024-09-15 23:57:34 +03:00
7feb4c4ebd
Kernel: VFS::file_from_absolute_path now used root_file() API
2024-09-15 02:38:25 +03:00
2911d1f018
Kernel: Cleanup and fix pseudo terminals
2024-09-15 02:38:07 +03:00
8956835d95
Kernel: Make sys_.*at use VFS relative path finding
2024-09-14 21:15:58 +03:00
ea4ec2eafc
Kernel: Make OpenFileDescrptor store VFS::File instead of inode+path
2024-09-14 20:10:21 +03:00
3a352078de
Kernel: Make VirtualFileSystem::File non copyable
2024-09-14 20:09:28 +03:00
6060b39548
Kernel: Implement relative file searching in VFS
2024-09-14 19:44:20 +03:00
2b52ea4c6f
Kernel: Make Inode::can_access const
2024-09-14 19:39:41 +03:00
b41738b47b
Kernel: Fix ACPI name formatting functions
2024-09-14 19:39:13 +03:00
467ac6c365
Kernel/LibC: Implement SOCK_CLOEXEC and SOCK_NONBLOCK
...
This removes the need for fcntl after creating a socket :)
2024-09-11 21:59:11 +03:00
c77ad5fb34
Kernel: Implement copy-on-write memory for file backed mmaps
2024-09-11 19:33:50 +03:00
c65613901f
Kernel: Fix AML aliases and package elements
2024-09-10 16:18:42 +03:00
2bf65ef512
Kernel: Invoke ELF interpreter instead if it is specified
2024-08-28 17:06:32 +03:00
d20752c318
Kernel: Make OpenFileDescritorSet::open take rvalue
...
This gets rid of some implicit allocations from copy constructors
2024-08-28 16:36:10 +03:00
991ae4383a
Kernel/LibC: Implement fchmod
2024-08-25 15:07:42 +03:00
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
37cd4ed504
Kernel: Add support for CSI @, b, d to VirtualTerminal
2024-08-22 14:04:45 +03:00
23194d1f53
Kernel: Implement basic random device to /dev/random
2024-08-22 14:02:26 +03:00
5cd7b40165
Kernel: Make BananBootloader info struct header compatible with C
2024-08-18 20:51:10 +03:00
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
