RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-14 09:14:58 +00:00
Code Issues Activity Actions

Kernel: Support loading the kernel at almost arbitrary virtual addresses

Browse source 
This enables further work on implementing KASLR by adding relocation
support to the pre-kernel and updating the kernel to be less dependent
on specific virtual memory layouts.
This commit is contained in:
Gunnar Beutner 2021-07-26 15:10:51 +02:00 • committed by Andreas Kling
parent e3d2ca6bd2
commit 57417a3d6e
20 changed files with 123 additions and 87 deletions
Download patch file Download diff file Expand all files Collapse all files

6
Kernel/Sections.h
View file

@ -15,10 +15,10 @@
#define READONLY_AFTER_INIT __attribute__((section(".ro_after_init")))
#define UNMAP_AFTER_INIT NEVER_INLINE __attribute__((section(".unmap_after_init")))
#define KERNEL_PD_END (kernel_base + 0x31000000)
#define KERNEL_PT1024_BASE (kernel_base + 0x3FE00000)
#define KERNEL_PD_END (kernel_mapping_base + 0x31000000)
#define KERNEL_PT1024_BASE (kernel_mapping_base + 0x3FE00000)
#define KERNEL_QUICKMAP_PT (KERNEL_PT1024_BASE + 0x6000)
#define KERNEL_QUICKMAP_PD (KERNEL_PT1024_BASE + 0x7000)
#define KERNEL_QUICKMAP_PER_CPU_BASE (KERNEL_PT1024_BASE + 0x8000)
#define USER_RANGE_CEILING (kernel_base - 0x2000000)
#define USER_RANGE_CEILING (kernel_mapping_base - 0x2000000)