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 for kexec@lists.infradead.org; Thu, 23 Jul 2020 22:19:57 +0000
References: <159524918900.20855.17709718993097359220.stgit@hbathini.in.ibm.com>
 <159524948081.20855.1023953568610670370.stgit@hbathini.in.ibm.com>
From: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Subject: Re: [PATCH v4 04/12] ppc64/kexec_file: avoid stomping memory used by
 special regions
In-reply-to: <159524948081.20855.1023953568610670370.stgit@hbathini.in.ibm.com>
Date: Thu, 23 Jul 2020 19:19:41 -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:

> crashkernel region could have an overlap with special memory regions
> like  opal, rtas, tce-table & such. These regions are referred to as
> exclude memory ranges. Setup this ranges during image probe in order
> to avoid them while finding the buffer for different kdump segments.
> Override arch_kexec_locate_mem_hole() to locate a memory hole taking
> these ranges into account.
>
> Signed-off-by: Hari Bathini <hbathini@linux.ibm.com>

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

-- 
Thiago Jung Bauermann
IBM Linux Technology Center

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