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User-Space-Prozesse #27

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mwoerlein opened this issue Nov 3, 2021 · 0 comments
Open

User-Space-Prozesse #27

mwoerlein opened this issue Nov 3, 2021 · 0 comments
Milestone
Multi-Threading

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@mwoerlein
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  • Initierung einer Userspace Runtime (Heap, Stack, ClassStorage/Loader, ...) und entsprechende Trennung zwischen (geteiltem) Kernel-Klassen/Instanzen und eigentlichem Programm-Code
  • Wechsel zu Ring 3
  • System-Calls
    • bzw Lösen der Frage: "Wie kommt man Objekt-Orientiert wieder zurück zu Ring 0 für Kernel-Code und für was ist es nötig?"
    • out/err-OStreams als (Multi-Write-)Pipes auf CGA-Screen? Oder einführen von Terminal/Window-Logik ala ncurses die intern dann auf den CGA-Screen abgebildet werden?
@mwoerlein mwoerlein added this to the Multi-Threading milestone Nov 3, 2021
mwoerlein added a commit that referenced this issue Oct 14, 2023
@mwoerlein
#27 generate gdt at kernel heap and prepare switch to ring3 (not yet …
44d12eb 
…working, generates in tripple fault :-/)
mwoerlein added a commit that referenced this issue Oct 28, 2023
@mwoerlein
#27 fix TSS entry generation
81fd3d6
mwoerlein added a commit that referenced this issue Oct 28, 2023
@mwoerlein
#27 allow virtual memory access in user mode
941293f
mwoerlein added a commit that referenced this issue Oct 29, 2023
@mwoerlein
#27 adjust interrupt handle interface to be prepared for system call …
6170ed7 
…argument passing
mwoerlein added a commit that referenced this issue Oct 29, 2023
@mwoerlein
#27 store out/err in process representation, to be accessable in syst…
d9056fd 
…em calls via current thread/process => process should be process (kernel) runtime
mwoerlein added a commit that referenced this issue Oct 29, 2023
@mwoerlein
#27 first PoC syscall implementation
9fbfcd3
mwoerlein added a commit that referenced this issue Oct 30, 2023
@mwoerlein
#27 do not use temporary scheduler yield/sleep in syscall
6c3e3b1
mwoerlein added a commit that referenced this issue Oct 31, 2023
@mwoerlein
#27 start to init user and kernel local memory management and runtime…
ef06c2b 
…s during process/thread startup
mwoerlein added a commit that referenced this issue Oct 31, 2023
@mwoerlein
#27 add some memory tests to sample task
e23d708
mwoerlein added a commit that referenced this issue Oct 31, 2023
@mwoerlein
#27 separate gridos::i386::sys namespace for user land code
64009be
mwoerlein added a commit that referenced this issue Oct 31, 2023
@mwoerlein
#27 add userspace thread/process model; add syscall to get current th…
4bcb6bb 
…read; cleanup process/thread startup;
mwoerlein added a commit that referenced this issue Nov 2, 2023
@mwoerlein
#27 use separate stacks in user mode, kernel mode and general ISRs; e…
70d788f 
…xplicitly switch to kernel stack during syscalls; switch to user mode after process/thread initialisation
mwoerlein added a commit that referenced this issue Nov 7, 2023
@mwoerlein
#27 use separate stacks in user mode, kernel mode and general ISRs; e…
15a83f4 
…xplicitly switch to kernel stack during syscalls; switch to user mode after process/thread initialisation
mwoerlein added a commit that referenced this issue Nov 8, 2023
@mwoerlein
#27 build and append stand-alone module/block for sample task
c626c5e
mwoerlein added a commit that referenced this issue Nov 8, 2023
@mwoerlein
#27 use new createSelfcontainedRuntime method during bootstrap
55c83a1
mwoerlein added a commit that referenced this issue Nov 8, 2023
@mwoerlein
#27 start process from module => preload store classes into user heap…
9bfd4ba 
… and build selfcontained user runtime
mwoerlein added a commit that referenced this issue Nov 8, 2023
@mwoerlein
#27 process manager switches to user mode and directly into code on u…
e08aca1 
…ser heap/stack as preparation to hide kernel space memory in user mode
mwoerlein added a commit that referenced this issue Nov 9, 2023
@mwoerlein
#27 mark module as unavailable after unmap
4f917ed
mwoerlein added a commit that referenced this issue Nov 9, 2023
@mwoerlein
#27 restrict user mode access to user memory space, only => kernel pr…
435cce1 
…ocess and shared space is just available in supervisor mode
mwoerlein added a commit that referenced this issue Nov 9, 2023
@mwoerlein
#27 explicitly load required classes into user memory and use kernel …
87deef7 
…classes as fallback => user task does not have to support gridos runtime classes explicitly
mwoerlein added a commit that referenced this issue Nov 11, 2023
@mwoerlein
#27 increase/adjust stack sizes
13f9cc9
mwoerlein added a commit that referenced this issue Nov 11, 2023
@mwoerlein
#27 preload thread class with of its inherent dependencies
f0f71dc
mwoerlein added a commit that referenced this issue Mar 4, 2024
@mwoerlein
#27 simplify preloading by extracting user runtime creation into SysCall
c11d702
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