From: Simon Horman <horms@verge.net.au>
To: Pingfan Liu <piliu@redhat.com>
Cc: kexec@lists.infradead.org
Subject: Re: [PATCHv2] arm64/crashdump-arm64: deduce the paddr of _text
Date: Sun, 6 Jun 2021 08:54:52 +0200 [thread overview]
Message-ID: <20210606065449.GA4363@vergenet.net> (raw)
In-Reply-To: <20210526104128.42755-1-piliu@redhat.com>
On Wed, May 26, 2021 at 06:41:28PM +0800, Pingfan Liu wrote:
> Since kernel commit e2a073dde921 ("arm64: omit [_text, _stext) from
> permanent kernel mapping"), the physical address of 'Kernel code' in
> /proc/iomem is mapped from _text, instead, from _stext.
>
> Taking the compatibility into account, it had better deduce the paddr of
> _text despite of the unavailability through /proc/iomem. It can be
> achieved by utilizing the fact _text aligned on 2MB.
>
> Signed-off-by: Pingfan Liu <piliu@redhat.com>
> Cc: Simon Horman <horms@verge.net.au>
> To: kexec@lists.infradead.org
> ---
> v1 -> v2:
> deduce paddr of _text to cope with compability.
Thanks, and sorry for the delay.
Applied.
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prev parent reply other threads:[~2021-06-06 6:55 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-26 10:41 [PATCHv2] arm64/crashdump-arm64: deduce the paddr of _text Pingfan Liu
2021-06-06 6:54 ` Simon Horman [this message]
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