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

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Date:   Fri, 27 Oct 2023 18:41:12 +0200
From:   Gregory CLEMENT <gregory.clement@...tlin.com>
To:     Jiaxun Yang <jiaxun.yang@...goat.com>, linux-mips@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, tsbogend@...ha.franken.de,
        vladimir.kondratiev@...el.com,
        Jiaxun Yang <jiaxun.yang@...goat.com>
Subject: Re: [PATCH 0/5] MIPS: Fix kernel in XKPHYS

Gregory CLEMENT <gregory.clement@...tlin.com> writes:

> 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@...tlin.com>
> Tested-by: Gregory CLEMENT <gregory.clement@...tlin.com>
>
> 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

I forgot to say that if your series is not merged in 6.7, then I would
like to bring it in my series as I have to change some part of the code
to add support for the memory aliasing workaround.

Thanks,

Gregory


>
>
>>
>> Thanks
>> - Jiaxun
>>
>> [1]: https://lore.kernel.org/lkml/20231004161038.2818327-3-gregory.clement@bootlin.com/
>>
>> 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

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