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Allow access to all memory from userspace

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> If this option is disabled, you allow userspace (root) access to all
> of memory, including kernel and userspace memory

Currently is failing:

    ~ # cat /proc/iomem
    40001000-400010ff : serial
    60000000-7fffffff : Reserved
    80000000-ffefffff : System RAM
      80201000-81fa0b87 : Kernel image
        80201000-80cb177f : Kernel code
        81400000-819fffff : Kernel rodata
        81c00000-81f18747 : Kernel data
        81f19000-81fa0b87 : Kernel bss
    100000000-1bfffffff : namespace0.0

    ~ # devmem 0x40001000
    devmem: mmap: Operation not permitted
This commit is contained in:
Rodrigo Arias 2024-07-04 12:45:41 +02:00
parent 4826396962
commit 471207c64a
1 changed files with 1 additions and 0 deletions
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lagarto-ox.nix
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@ -65,6 +65,7 @@
WQ_CPU_INTENSIVE_REPORT y
TRACING y
BOOTTIME_TRACING y
STRICT_DEVMEM n
''
# Disable SMP so we don't have IPI
+ ''