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Why does the stage 2 page tables need to be cleared after a reinitialization of a vCPU?
Originally I wanted to do better job at presenting the contents of this article, but there is just too much information
2024-11-06
Linux ,
KVM ,
ARMv8
為什麼KVM重新初始化vCPU時要清除所有stage 2地址轉換?
對於這篇我原本是想要寫的順一點的,但寫到後來實在是太雜了也太多背景知識要補充,所以最後比較像是一份雜亂的筆記😅 有興趣的人如果有問題歡迎來信討論 此文中”guest”與”VM”與”guest VM”這三個詞是一樣的意思 Arm Arc
2024-10-30
Linux ,
KVM ,
ARMv8
Linux Interrupt Subsystem Intro (2): Interrupt Handling Process
Linux version: v6.0 Architecture: ARMv8 This post is the continuation of Linux Interrupt Subsystem Intro(1): Interrupt
2024-03-24
Linux ,
ARMv8 ,
interrupt
Linux中斷子系統簡介(2): 中斷處理流程執行
Linux版本:v6.0處理器架構:ARMv8 這篇接續Linux中斷子系統簡介(1): 中斷處理流程的建立 前言距離前篇已經過了快要半年… 中間跑去研究其他的事了所以才一直留著這個坑沒填,現在回來看已經有點生疏了qaq,果然有想寫的東
2024-03-04
Linux ,
ARMv8 ,
interrupt
Linux Interrupt Subsystem Intro(1): Interrupt Handling Initialization
Linux version: v6.0 Architecture: ARMv8 I have been digging into the details of interrupt processing in Linux in the p
2023-12-27
Linux ,
ARMv8 ,
interrupt
Linux中斷子系統簡介(1): 中斷處理流程的建立
Linux版本:v6.0 處理器架構:ARMv8 前言這幾週花了不少時間在看Linux到底是怎麼處理中斷的,在閱讀網路上前輩們介紹Linux中斷的blogs時總覺得細節都講得不錯,但大方向好難掌握住,我也是真的下去trace一遍才比較有
2023-09-23
Linux ,
ARMv8 ,
interrupt
Linux ARM64 KASLR Implementation(2): Linear Mapping Randomization
Linux version: v6.0 Architecture: ARMv8 This post is the continuation of Linux ARM64 KASLR Implementation(1): Kernel I
2023-04-23
Linux ,
ARMv8 ,
KASLR
Linux ARM64 KASLR 實作分析(2): 線性位址隨機化
Linux版本:v6.0 處理器架構:ARMv8 這篇接續Linux ARM64 KASLR 實作分析(1): 內核映像位址隨機化 線性位址隨機化實作機制memstart_offset_seed 的來由上篇說到在__primary_sw
2023-04-15
Linux ,
ARMv8 ,
KASLR
Linux ARM64 `__create_pgd_mapping` Analysis
Linux version: v6.0 Architecture: ARMv8 IntroductionMemory mapping is probably the toughest part to understand in the
2023-02-13
Linux ,
page tables
Linux ARM64 `__create_pgd_mapping` 分析
Linux版本:v6.0 處理器架構:ARMv8 前言在理解 Linux kernel 開機流程時,最難理解的應該就是記憶體映射的部份了,我認為困難的點在於處理記憶體映射的程式本身也在記憶體的映射之中,所以除了看懂程式邏輯之外,還必須理
2023-01-17
Linux ,
page tables
Linux ARM64 KASLR Implementation(1): Kernel Image Randomization
Linux version: v6.0 Architecture: ARMv8 IntroductionI have heard of KASLR (Kernel Address Space Layout Randomization)
2023-01-02
Linux ,
ARMv8 ,
KASLR
Linux ARM64 KASLR 實作分析(1): 內核映像位址隨機化
Linux版本:v6.0 處理器架構:ARMv8 前言學作業系統其實很早就聽過有KASLR(Kernel Address Space Layout Randomization)這個東西了,聽起來就很酷,不過因為程度尚淺,再加上KASLR
2022-12-22
Linux ,
ARMv8 ,
KASLR
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