https://github.com/andreafioraldi/aosv-cheatshit
shitty partial notes of the Advanced Operating Systems and Virtualization course in shitty text files
https://github.com/andreafioraldi/aosv-cheatshit
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shitty partial notes of the Advanced Operating Systems and Virtualization course in shitty text files
- Host: GitHub
- URL: https://github.com/andreafioraldi/aosv-cheatshit
- Owner: andreafioraldi
- Created: 2019-04-10T17:14:04.000Z (about 7 years ago)
- Default Branch: master
- Last Pushed: 2019-06-24T17:18:53.000Z (almost 7 years ago)
- Last Synced: 2025-03-25T14:45:05.009Z (about 1 year ago)
- Homepage:
- Size: 124 KB
- Stars: 6
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.txt
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README
==============
AOSV CheatShit
==============
** Shitty notes of the Advanced Operating Systems and Virtualization course at
Sapienza University of Rome in shitty text files **
Written with <3 by Andrea Fioraldi
The material is divided into chapters and each chapter, in general, covers
multiple related topics.
Some topics that are for me obvious like the structure of GOT and PLT in the
ELF are omitted, these notes are not a replacement of the course material.
Table of contents
-----------------
1 - An introduction to x86
1.1 - Branch prediction
1.2 - Hyper-threading
1.3 - Multi-core
2 - The x86 boot process
2.1 - Initial stage
2.2 - BIOS
2.3 - Stage 1
2.4 - Protected mode
2.5 - Paging
2.6 - x64 Longmode
2.7 - UEFI
2.8 - Cores wake up
3 - The Linux specific boot process
3.1 - Kernel loading
3.2 - Early paging
3.3 - The flow
3.4 - Init
4 - Memory management
4.1 - Numa nodes
4.2 - Zones initialization
4.3 - High memory
4.4 - Reclaiming boot memory
4.5 - Allocation context
4.6 - The SLAB allocator
5 - System calls
5.1 - Trap initialization
5.2 - Syscalls dispatching
5.3 - Syscalls table
5.4 - Call from userspace
5.5 - Modern syscall activation
5.6 - Spectre patch
5.7 - sys_ni_syscall
6 - Loadable modules
6.1 - Initialization
6.2 - Parameters
6.3 - Build and install
6.4 - Loading
6.5 - Kprobes
6.6 - Versions
6.7 - Locating syscalls table
7 - Interrupts and time
7.1 - Realtime OS
7.2 - IDT and GDT
7.3 - IDT entry initialization
7.4 - Entries types
7.5 - Gate descriptor
7.6 - Interrupts vs Traps
7.7 - Global activation scheme
7.8 - Do page fault
7.9 - Multi-core
7.10 - Inter Processor Interrupts
7.11 - IPI API
7.12 - I/O interrupts management
7.13 - Deferred work
7.14 - SoftIRQs
7.15 - Timekeeping
7.16 - Watchdogs
8 - Concurrency
8.1 - Properties
8.2 - Concurrent and preemtive kernels
8.3 - Race condition example
8.4 - Enable/disable
8.5 - Atomic operations
8.6 - Barriers
8.7 - Mutex and spinlocks
8.8 - Read-Copy-Update
9 - Virtual File System and Devices
9.1 - Introduction
9.2 - EXT2
9.3 - VFS global organization
9.4 - VFS and PCBs
9.5 - Operations
9.6 - Pathname lookup
9.7 - Syscalls
9.8 - Proc & Sys
9.9 - Devices
10 - Processes
10.1 - Process Control Block
10.2 - MM member
10.3 - PCB location
10.4 - Process and thread creation
10.5 - Program start
11 - Scheduling
11.1 - Strategies
11.2 - Classes
11.3 - Structures
11.4 - Entry point
11.5 - States
11.6 - Schedulers
11.7 - Context switch
12 - Virtualization and Containers
12.1 - Hypervisors
12.2 - Ring aliasing
12.3 - Paravirtualization
12.4 - Hardware assisted
12.5 - Kernel Samepage Merging
12.6 - Containers mechanisms
12.7 - Cgroups
12.8 - Namespaces