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21 Commits

Author SHA1 Message Date
Drew Galbraith d99624daf6 [zion] Move to using the LAPIC timer over the PIT. 2023-08-01 20:18:47 -07:00
Drew Galbraith 9dd457391c [zion] Move IPC objects to share code 2023-06-21 23:47:45 -07:00
Drew Galbraith e1af79b975 [zion/glacier] Move RefPtr to glacier. 2023-06-21 15:07:40 -07:00
Drew Galbraith fe1641ac38 [zion] Create a message queue to be shared between the port and channel 2023-06-20 15:29:32 -07:00
Drew Galbraith 0f0e39d1e9 Further parse AHCI information. 
Send an IDENTIFY command to each drive and set up a hook to handle
interrupts.
 2023-06-12 19:20:51 -07:00
Drew Galbraith bd32e85164 Fix race condition in page fault handler. 
We enabled interrupts before getting the value of cr2 in the handler.
If the handler was preempted, cr2 could have been overriden by a page
fault in a separate thread or process.
 2023-06-07 22:24:50 -07:00
Drew Galbraith 53ff49b265 Add preprocessor directives to supress logs per file. 
Makes the output much cleaner by default but allows for getting more
infor if debugging in the future.
 2023-06-07 13:51:13 -07:00
Drew Galbraith add533071b Use APIC for interrupts rather than PIC. 
Still rely on the PIT for now rather than the local APIC timer.
 2023-06-07 13:40:36 -07:00
Drew Galbraith eb04242a59 Add a debug mode for the KernelHeap. 2023-06-07 10:01:22 -07:00
Drew Galbraith 23895b5c6c Spawn Processes using memory primitives rather than and elf loader. 
This allows us to remove the temporary syscall for that style of process
spawn.
 2023-06-07 00:04:53 -07:00
Drew Galbraith b06c76e477 Create a MemoryObject class and use it to load programs. 2023-06-06 21:44:10 -07:00
Drew Galbraith de49dcc01a Move scheduler to new global class format. 2023-05-29 23:48:32 -07:00
Drew Galbraith b58186265e Split Yield and Preempt into separate scheduling functions. 
This switch makes the logic for each much easier to parse.
 2023-05-29 23:09:39 -07:00
Drew Galbraith 656687b183 Schedule on PIC timer raise. 
This causes a page fault because we don't properly handle the sleep
case.
 2023-05-29 22:32:50 -07:00
Drew Galbraith 496dfeaef9 Update the timer to a more reasonable time slice of 50ms 2023-05-29 22:17:56 -07:00
Drew Galbraith 9869d1022a Mask all interrupts on the master PIC except the timer. 
This prevents us from getting a GP fault when an unhandled interrupt
arises.
 2023-05-29 22:07:47 -07:00
Drew Galbraith a949055bce Flesh out the GP Fault hanlder slightly. 2023-05-29 22:01:06 -07:00
Drew Galbraith 629dca278b Enable the PIC and add a timer. 
This causes a GP fault after the timer runs for some time.
 2023-05-29 21:52:01 -07:00
Drew Galbraith 7a3b4d2d42 Add true page fault handler. 2023-05-18 13:56:09 -07:00
Drew Galbraith 747c2a4e17 Add a page fault handler 2023-05-18 10:59:45 -07:00
Drew Galbraith 9fc1aa15ef Add an interrupt descriptor table. 
Set up a very basic handler for divide by zero and
general protection faults.
 2023-05-17 22:54:37 -07:00