From: Simon Horman <horms@verge.net.au>
To: Geoff Levand <geoff@infradead.org>
Cc: James Morse <james.morse@arm.com>,
Kostiantyn Iarmak <kiarmak@cisco.com>,
kexec@lists.infradead.org, Petitboot@lists.ozlabs.org
Subject: Re: [PATCH v2] kexec: Add --no-checks option
Date: Thu, 19 Apr 2018 10:38:45 +0200 [thread overview]
Message-ID: <20180419083845.qmdol6a5xm57vry7@verge.net.au> (raw)
In-Reply-To: <fc68e396-1eab-7cc3-fcbd-01b03e5967cb@infradead.org>
On Wed, Apr 11, 2018 at 11:30:48AM -0700, Geoff Levand wrote:
> Add a new option --no-checks to kexec that allows for a fast
> reboot by avoiding the purgatory integrity checks. This option is
> intended for use by kexec based bootloaders that load a new
> image and then immediately transfer control to it.
>
> Signed-off-by: Geoff Levand <geoff@infradead.org>
> ---
> Hi Simon,
>
> On 10/21/2015 04:12 PM, Geoff Levand wrote:
> > Hi Simon,
> >
> > It was reported that on some systems where purgatory is running
> > without caches enabled the sha256 calculations would take several
> > minutes. For bootloaders that just load a new image and
> > immediately jump into it the loss of the integrity check is worth
> > the increase in boot speed. Please consider.
>
> There seems to be continued interest in faster kexec re-boot times
> on arm64 systems so I rebased my old patch and renamed the
> option from '--lite' to '--no-checks'. Please consider.
Thanks, applied.
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prev parent reply other threads:[~2018-04-19 8:39 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-21 23:12 [PATCH] kexec: Add --lite option Geoff Levand
2015-10-22 0:02 ` Jeremy Kerr
2015-10-22 0:37 ` Geoff Levand
2015-11-05 6:20 ` Scott Wood
2015-10-22 3:17 ` Dave Young
2015-10-22 12:50 ` Vivek Goyal
2015-10-22 19:08 ` Geoff Levand
2015-11-05 5:56 ` Scott Wood
2015-12-07 11:45 ` Pratyush Anand
2015-12-07 11:48 ` Pratyush Anand
2015-12-07 11:48 ` Pratyush Anand
2015-12-07 13:16 ` James Morse
2015-12-07 13:16 ` James Morse
2015-12-07 14:07 ` Pratyush Anand
2015-12-07 14:07 ` Pratyush Anand
2015-12-08 1:03 ` Scott Wood
2015-12-08 1:03 ` Scott Wood
2015-12-08 16:00 ` James Morse
2015-12-08 16:00 ` James Morse
2015-12-09 9:28 ` Pratyush Anand
2015-12-09 9:28 ` Pratyush Anand
2016-01-11 12:46 ` Pratyush Anand
2016-01-11 12:46 ` Pratyush Anand
2016-01-12 1:06 ` Simon Horman
2016-01-12 1:06 ` Simon Horman
2015-10-22 18:57 ` Geoff Levand
2015-10-22 19:04 ` Vivek Goyal
2015-10-23 9:46 ` Dave Young
2015-10-23 18:49 ` Geoff Levand
2015-10-23 19:02 ` Eric W. Biederman
2018-04-11 18:30 ` [PATCH v2] kexec: Add --no-checks option Geoff Levand
2018-04-19 8:38 ` Simon Horman [this message]
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