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 for kexec@lists.infradead.org; Thu, 16 Jul 2020 00:35:22 +0000
References: <159466074408.24747.10036072269371204890.stgit@hbathini.in.ibm.com>
 <159466095278.24747.9161591016931052627.stgit@hbathini.in.ibm.com>
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Subject: Re: [PATCH v3 08/12] ppc64/kexec_file: setup the stack for purgatory
In-reply-to: <159466095278.24747.9161591016931052627.stgit@hbathini.in.ibm.com>
Date: Wed, 15 Jul 2020 21:35:07 -0300
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To: Hari Bathini <hbathini@linux.ibm.com>
Cc: Pingfan Liu <piliu@redhat.com>, Michael Ellerman <mpe@ellerman.id.au>, Nayna Jain <nayna@linux.ibm.com>, Kexec-ml <kexec@lists.infradead.org>, Mahesh J Salgaonkar <mahesh@linux.ibm.com>, Mimi Zohar <zohar@linux.ibm.com>, lkml <linux-kernel@vger.kernel.org>, linuxppc-dev <linuxppc-dev@ozlabs.org>, Sourabh Jain <sourabhjain@linux.ibm.com>, Petr Tesarik <ptesarik@suse.cz>, Andrew Morton <akpm@linux-foundation.org>, Dave Young <dyoung@redhat.com>, Vivek Goyal <vgoyal@redhat.com>, Eric Biederman <ebiederm@xmission.com>


Hari Bathini <hbathini@linux.ibm.com> writes:

> To avoid any weird errors, the purgatory should run with its own
> stack. Set one up by adding the stack buffer to .data section of
> the purgatory. Also, setup opal base & entry values in r8 & r9
> registers to help early OPAL debugging.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>
> Tested-by: Pingfan Liu <piliu@redhat.com>

Reviewed-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>

> ---
>
> v2 -> v3:
> * Unchanged. Added Tested-by tag from Pingfan.
>
> v1 -> v2:
> * Setting up opal base & entry values in r8 & r9 for early OPAL debug.
>
>
>  arch/powerpc/include/asm/kexec.h       |    4 ++++
>  arch/powerpc/kexec/file_load_64.c      |   29 +++++++++++++++++++++++++++++
>  arch/powerpc/purgatory/trampoline_64.S |   32 ++++++++++++++++++++++++++++++++
>  3 files changed, 65 insertions(+)
>

-- 
Thiago Jung Bauermann
IBM Linux Technology Center

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