Messages in this thread | | | From | Björn Töpel <> | Subject | Re: [PATCH v4 0/1] riscv: Allow to downgrade paging mode from the command line | Date | Fri, 17 Feb 2023 15:48:00 +0100 |
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Alexandre Ghiti <alexghiti@rivosinc.com> writes:
> This new version gets rid of the limitation that prevented KASAN kernels > to use the newly introduced parameters. > > While looking into KASLR, I fell onto commit aacd149b6238 ("arm64: head: > avoid relocating the kernel twice for KASLR"): it allows to use the fdt > functions very early in the boot process with KASAN enabled by simply > compiling a new version of those functions without instrumentation. > > I had to change the handling of the command line parsing to make the > code self-contained in kernel/pi/cmd_early.c to avoid calling too many > __pi prefixed functions from outside this file. > > I'll use this approach like arm64 to handle the extraction of the random > seedi from the device tree for KASLR. > > @Ard: I copied the "pi" name but I have to admit I don't know what it > means.
__pi_ is for "position-independent" -- KASLR related.
For the (tiny ;-)) series:
Tested-by: Björn Töpel <bjorn@rivosinc.com> Reviewed-by: Björn Töpel <bjorn@rivosinc.com>
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