Re: [PATCH 0/5] MIPS: Fix kernel in XKPHYS

From: Gregory CLEMENT
Date: Fri Oct 27 2023 - 12:35:51 EST


Hello Jiaxun,


> Hi all,
>
> This series fixes support for loading kernel to XKPHYS space.
> It is derived from "MIPS: use virtual addresses from xkphys for MIPS64" [1].
>
> Boot tested on boston and QEMU with loading address set to 0xa800000090000000.
> QEMU patch on the way.
>
> Gregory and Vladimir, do let me know if I missed anything.

Thanks for this series, I reviewed it and tested it on my platform, so
you can add for all the patches:

Reviewed-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
Tested-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>

However I add to fix the patch " MIPS: Handle mips_cps_core_entry within
lower 4G", I think you missed a case. I will comment on it.

Gregory


>
> Thanks
> - Jiaxun
>
> [1]: https://lore.kernel.org/lkml/20231004161038.2818327-3-gregory.clement@xxxxxxxxxxx/
>
> Jiaxun Yang (5):
> MIPS: Export higher/highest relocation functions in uasm
> MIPS: genex: Fix except_vec_vi for kernel in XKPHYS
> MIPS: Fix set_uncached_handler for ebase in XKPHYS
> MIPS: Handle mips_cps_core_entry within lower 4G
> MIPS: Allow kernel base to be set from Kconfig for all platforms
>
> arch/mips/Kconfig | 18 +++++++++++++----
> arch/mips/include/asm/mips-cm.h | 1 +
> arch/mips/include/asm/uasm.h | 2 ++
> arch/mips/kernel/genex.S | 19 +++++++++++++----
> arch/mips/kernel/smp-cps.c | 27 +++++++++++++++++++------
> arch/mips/kernel/traps.c | 36 +++++++++++++++++++++++----------
> arch/mips/mm/uasm.c | 6 ++++--
> 7 files changed, 82 insertions(+), 27 deletions(-)
>
> --
> 2.34.1
>

--
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering
http://bootlin.com