778778fede
Kernel: HPET doesn't use the legacy mapping anymore
2023-08-10 21:08:32 +03:00
f7449c4ab9
Kernel: APIC now uses MMIO namespace functions for mmio
2023-08-10 21:07:23 +03:00
fd2bcc9156
Kernel: IDT now sends EOI for every interrupt
...
EOI is sent before calling the interrupt handler. This should be fine
since all interrupts are processed with interrupts disabled
2023-08-09 09:57:02 +03:00
a5b1555725
Kernel: Validate HPET tick period
2023-08-09 09:50:38 +03:00
e74fdbc55b
Kernel: Remove get_unix_timestamp from SystemTimer
...
Kernel now uses the percise real_time() and time_since_boot()
2023-08-09 08:57:50 +03:00
008c777a9f
Kernel: Add PageTable::Flags::CacheDisable
...
Also fix multiple places where we were using uint8_t as page table
flags instead of PageTable::flags_t which we promoted to uint16_t
while back.
2023-08-06 23:59:30 +03:00
d8a9d4a24e
Kerne: SystemTimer can now output the current real time
2023-08-04 16:06:47 +03:00
bc0e1fa898
Kernel: Rename TimerHandler to SystemTimer
...
I changed SystemTimer to only handle the "best" supported timer
it can initialize.
2023-08-04 16:06:47 +03:00
17f1737c9a
Kernel: Add function to retrieve boot time as timespec
2023-08-04 16:06:47 +03:00
868444f043
Kernel: F11 now prints current time to debug output
...
This allows better timer percision and system freeze checks
2023-08-04 15:22:51 +03:00
fdae253695
Kernel: Add basic HPET support to replace PIT if exists
...
This works same way as the PIT implementation; calls Scheduler every
milli second.
2023-08-04 15:22:51 +03:00
d4adcff958
Kernel: Move sleep() implementation to TimerHandler
2023-08-04 15:15:00 +03:00
2c59c9a3cc
Kernel: Add more structures to ACPI
2023-08-04 15:13:47 +03:00
3a59a64355
Kernel: Implement basic MMIO functions
...
This is equivalent to IO.h except for memory mapped io instead of
IO ports
2023-08-04 15:12:29 +03:00
9363c1cdaf
Kernel: Move RTC to Timer directory
...
PIT ms counter seems to be off by multiple seconds/minute. I will
be probably changing to HPET for system time
2023-08-04 11:12:16 +03:00
198e6d7cf6
Kernel: Start work on abstracting Timers
2023-08-04 10:29:42 +03:00
07ee898f4f
Kernel: Remove unnecessary timer check from Scheduler
2023-08-04 10:29:42 +03:00
e57c1fc9fc
Kernel: Threads are deleted sooner and cleaner
...
We now delete threads when
1. it is marked as Terminated and is the current thread
2. it tries to start execution in Terminated state
This allows us to never have thread executing in Terminated state
2023-08-04 10:29:42 +03:00
a11b5ae41f
Kernel: align userspace stacks
...
I was getting #GP on sse instructions
2023-08-03 18:09:48 +03:00
91f04ce250
Kernel: Change PageTable API
...
Getting free pages not reserves them, so you don't have to hold
the page table lock :)
2023-08-02 22:09:14 +03:00
926df2b276
Kernel: PageTable now supports reserved pages
...
You can now map pages as reserved, so that they will not be given
from get_free_page() or get_free_contiguous_pages().
2023-08-01 16:35:54 +03:00
217dbca7b7
Kernel: Cleanup returns from any kind on interrupts
2023-08-01 14:23:50 +03:00
679d47131d
BuildSystem: Edit build flags regarding sse and warnings
2023-07-31 22:31:17 +03:00
8b1bccb79b
Kernel: store/load sse/mmx/fpu state on isr/irq/syscall
...
I haven't tested this yet but should be fine. This will be optimized
to only save state from threads that are using it
2023-07-31 22:28:57 +03:00
e86e755c51
Kernel: Generally improve signals
2023-07-31 22:28:18 +03:00
08cdf88586
Kernel: Cleanup signal trampoline
2023-07-30 15:58:35 +03:00
6f7d97cf94
Kernel: Remove is_in_syscall from Thread
2023-07-30 14:49:51 +03:00
5e434f5131
Kernel: Hardware exceptions now sends signals to userspace
2023-07-30 14:34:15 +03:00
a152d0aac5
Kernel: raise() now force sends signal
2023-07-30 14:17:07 +03:00
879706e6e9
Kernel: Signals are not queued anymore
...
Posix doesn't require signal queing if you don't use sigqueue() which
we don't support. Process also has its own pending signal mask.
2023-07-29 16:54:31 +03:00
a5813f9ba5
Kernel: TTY now sends SIGINT on ^C to foreground process
2023-07-28 18:10:09 +03:00
5652af3384
Kernel: Mark reading section from StorageDevice as terminate critical
2023-07-28 18:09:35 +03:00
22cd9af8cc
Kernel: Restructure process and thread termination
...
When we want to kill a process, we mark its threads as Terminating
or Terminated. If the thread is in critical section that has to be
finished, it will be in Terminating state until done. Once Scheduler
is trying to execute Terminated thread it will instead delete it.
Once processes last thread is marked Terminated, the processes will
turn it into a cleanup thread, that will allow blocks and memory
cleanup to be done.
2023-07-28 18:06:20 +03:00
a9cf9bceef
Kernel: Rewrite DiskCache
...
We now cache only clean pages since I don't want to think about
syncing the disk later.
2023-07-27 22:22:39 +03:00
6c0f864a6e
Kernel: Locks allow locking after locker is invalid
...
SpinLock and RecursiveSpinLock will now allow locking after the initial
locker is invalid. This allows us to kill threads even if they are holding
internal locks
2023-07-27 18:52:51 +03:00
e4509d9482
Kernel: DiskCache uses are now done without interrupts
...
This allows disk cache to not be invalid state after partial read/write
2023-07-27 18:52:51 +03:00
0f23e1f0f4
Kernel: Scheduler can now check if tid is valid
...
Tid can become invalid if the thread is already terminated
2023-07-27 18:34:06 +03:00
642a6aa4ad
Kernel: Process::exit() unblocks the whole lock before blocking
2023-07-24 22:29:59 +03:00
432c296b7b
Kernel: Implement SYS_GET_PID and SYS_TCSETPGID
...
we don't have consept of process groups yet
2023-07-24 22:29:59 +03:00
b576d373c4
Kernel: TTY now stores foreground process pid
...
this will be process pgid when we have process groups
2023-07-24 22:29:59 +03:00
522aa8e762
Kernel: add Thread::queue_signal()
2023-07-24 22:26:10 +03:00
146802fa4c
Kernel: Scheduler can now block threads based on tid
2023-07-24 22:24:21 +03:00
cc8af25d73
Kernel: remove Semaphore::is_blocked
...
this will not mean anything after semaphores can spuriously wake up
2023-07-24 22:23:13 +03:00
f5f4bf58ad
Kernel: add is_tty() to inode
2023-07-24 22:19:59 +03:00
3784da0d18
Kernel: you can now ask process if it is userspace process
2023-07-23 18:54:10 +03:00
9eb72f4392
Kernel: OpenFileDesctiptor can now return inode of fd
2023-07-23 18:52:33 +03:00
f7bf6d5e62
Kernel: Change signal kernel API
...
return rsp and rip are now stored per thread
2023-07-23 18:33:10 +03:00
adb14ba373
Kernel: Userspace signal handlers are now called one at a time
...
I added a syscall for telling the kernel when signal execution has
finished. We should send a random hash or id to the signal trampoline
that we would include in the syscall, so validity of signal exit can
be confirmed.
2023-07-23 13:34:53 +03:00
7391d91317
Kernel/LibC: add SYS_SIGNAL/signal()
2023-07-21 20:08:13 +03:00
2149cec29f
Kernel: Make signals more POSIX
2023-07-21 20:01:12 +03:00
