From: "Michal Suchánek" <msuchanek@suse.de>
To: Simon Horman <horms@verge.net.au>
Cc: kexec@lists.infradead.org, Dave Young <dyoung@redhat.com>,
Petr Tesarik <ptesarik@suse.cz>, Tony Jones <tonyj@suse.com>
Subject: Re: [PATCH 4/5] kexec: fallback to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported.
Date: Fri, 2 Mar 2018 14:28:05 +0100 [thread overview]
Message-ID: <20180302142805.1abda163@kitsune.suse.cz> (raw)
In-Reply-To: <20180302124610.3tyvym3dayq3coiz@verge.net.au>
On Fri, 2 Mar 2018 13:46:10 +0100
Simon Horman <horms@verge.net.au> wrote:
> On Fri, Mar 02, 2018 at 01:32:52PM +0100, Michal Suchánek wrote:
> > On Fri, 2 Mar 2018 17:24:19 +0800
> > Dave Young <dyoung@redhat.com> wrote:
> >
> > > On 02/26/18 at 01:00pm, Michal Suchanek wrote:
> > > > Not all architectures implement KEXEC_FILE_LOAD. However, on
> > > > some archiectures KEXEC_FILE_LOAD is required when secure boot
> > > > is enabled in locked-down mode. Previously users had to select
> > > > the KEXEC_FILE_LOAD syscall with undocumented -s option.
> > > > However, if they did pass the option kexec would fail on
> > > > architectures that do not support it.
> > > >
> > > > When no option is passed to select one syscall or the other try
> > > > KEXEC_FILE_LOAD and fall back to KEXEC_LOAD when not
> > > > suported.
> > >
> > > Again, IMHO the default behavior should not be changed..
> >
> > So adding a new option to enable the fallback would be ok?
>
> I am also wary of changing the default behaviour and
> I think a new fallback option would be better.
>
> Dave?
Ok, I will resend with a separate fallback option.
Thanks
Michal
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next prev parent reply other threads:[~2018-03-02 13:28 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-26 12:00 [PATCH 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Michal Suchanek
2018-02-26 12:00 ` [PATCH 2/5] kexec: do not special-case the -s option Michal Suchanek
2018-03-02 12:36 ` Simon Horman
2018-03-02 13:38 ` Michal Suchánek
2018-03-05 6:38 ` Simon Horman
2018-02-26 12:00 ` [PATCH 3/5] kexec: add option to revert -s Michal Suchanek
2018-02-26 12:00 ` [PATCH 4/5] kexec: fallback to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Michal Suchanek
2018-02-28 13:05 ` Michal Suchánek
2018-03-02 9:17 ` Dave Young
2018-03-05 17:49 ` Michal Suchánek
2018-03-06 13:15 ` [PATCH v4 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Michal Suchanek
2018-03-06 13:15 ` [PATCH v4 2/5] kexec: do not special-case the -s option Michal Suchanek
2018-03-15 10:38 ` Simon Horman
2018-03-15 11:13 ` Michal Suchánek
2018-03-16 11:20 ` Simon Horman
2018-03-16 11:38 ` Michal Suchánek
2018-03-16 11:47 ` Simon Horman
2018-03-06 13:15 ` [PATCH v4 3/5] kexec: add option to revert -s Michal Suchanek
2018-03-06 13:15 ` [PATCH v4 4/5] kexec: add option to fall back to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Michal Suchanek
2018-03-13 17:30 ` Tony Jones
2018-03-14 3:44 ` Dave Young
2018-03-14 3:21 ` Dave Young
2018-03-15 11:06 ` Michal Suchánek
2018-03-16 6:45 ` Dave Young
2018-03-16 11:44 ` Michal Suchánek
2018-03-14 3:22 ` Dave Young
2018-03-14 7:23 ` Michal Suchánek
2018-03-14 7:48 ` Dave Young
2018-03-06 13:15 ` [PATCH v4 5/5] kexec: document -s, -c and -a options Michal Suchanek
2018-03-14 3:41 ` Dave Young
2018-03-14 7:25 ` Michal Suchánek
2018-03-14 7:50 ` Dave Young
2018-03-15 11:44 ` Michal Suchánek
2018-03-16 6:51 ` Dave Young
2018-03-16 16:01 ` Michal Suchánek
2018-03-14 3:43 ` Dave Young
2018-03-15 11:18 ` Michal Suchánek
2018-03-20 15:56 ` [PATCH v5 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Michal Suchanek
2018-03-26 7:25 ` Simon Horman
2018-03-26 7:53 ` Dave Young
2018-03-26 18:17 ` Michal Suchánek
2018-03-27 9:39 ` Dave Young
2018-03-20 15:56 ` [PATCH v5 2/5] kexec: Fix option checks to take KEXEC_FILE_LOAD into account Michal Suchanek
2018-03-20 15:56 ` [PATCH v5 3/5] kexec: Do not special-case the -s option Michal Suchanek
2018-03-20 15:56 ` [PATCH v5 4/5] kexec: Add option to fall back to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Michal Suchanek
2018-03-26 9:08 ` Dave Young
2018-03-26 9:12 ` Dave Young
2018-03-26 17:38 ` Michal Suchánek
2018-03-26 18:52 ` Thiago Jung Bauermann
2018-03-26 19:07 ` Michal Suchánek
2018-03-27 9:59 ` Dave Young
2018-03-28 13:15 ` [PATCH v6 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Michal Suchanek
2018-03-28 13:15 ` [PATCH v6 2/5] kexec: Fix option checks to take KEXEC_FILE_LOAD into account Michal Suchanek
2018-03-28 13:15 ` [PATCH v6 3/5] kexec: Do not special-case the -s option Michal Suchanek
2018-04-05 11:05 ` Petr Tesarik
2018-04-09 8:38 ` Bhupesh Sharma
2018-03-28 13:15 ` [PATCH v6 4/5] kexec: Add option to revert -s Michal Suchanek
2018-03-28 13:15 ` [PATCH v6 5/5] kexec: Add option to fall back to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Michal Suchanek
2018-03-28 13:15 ` [PATCH 6/6] kexec: Document -s, -c and -a options in the man page Michal Suchanek
2018-03-30 6:29 ` [PATCH v6 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Simon Horman
2018-03-30 8:00 ` Dave Young
2018-03-30 8:46 ` Simon Horman
2018-03-27 10:06 ` [PATCH v5 4/5] kexec: Add option to fall back to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Dave Young
2018-03-27 11:01 ` Michal Suchánek
2018-03-27 11:10 ` Petr Tesarik
2018-03-28 0:53 ` Dave Young
2018-03-28 7:42 ` Simon Horman
2018-03-20 15:56 ` [PATCH v5 5/5] kexec: Document -s, -c and -a options Michal Suchanek
2018-03-02 9:24 ` [PATCH 4/5] kexec: fallback to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Dave Young
2018-03-02 12:32 ` Michal Suchánek
2018-03-02 12:46 ` Simon Horman
2018-03-02 13:28 ` Michal Suchánek [this message]
2018-03-02 13:32 ` [PATCH v3 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Michal Suchanek
2018-03-02 13:33 ` [PATCH v3 2/5] kexec: do not special-case the -s option Michal Suchanek
2018-03-02 13:33 ` [PATCH v3 3/5] kexec: add option to revert -s Michal Suchanek
2018-03-02 13:33 ` [PATCH v3 4/5] kexec: fallback to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Michal Suchanek
2018-03-02 13:55 ` Michal Suchánek
2018-03-05 12:52 ` [PATCH] kexec: add option to fall back " Michal Suchanek
2018-03-02 13:33 ` [PATCH v3 5/5] kexec: document -s, -c and -a options Michal Suchanek
2018-03-05 1:51 ` [PATCH 4/5] kexec: fallback to KEXEC_LOAD when KEXEC_FILE_LOAD is not supported Dave Young
2018-03-02 12:44 ` Simon Horman
2018-03-13 20:43 ` Michal Suchánek
2018-02-26 12:00 ` [PATCH 5/5] kexec: document -s and -c options Michal Suchanek
2018-03-02 12:34 ` [PATCH 1/5] kexec: Return -ENOSYS when kexec does not know how to call KEXEC_FILE_LOAD Simon Horman
2018-03-02 13:44 ` Michal Suchánek
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