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From: geoff@infradead.org (Geoff Levand)
To: linux-arm-kernel@lists.infradead.org
Subject: Kexec on arm64
Date: Mon, 04 Aug 2014 10:21:09 -0700	[thread overview]
Message-ID: <1407172869.8971.54.camel@smoke> (raw)
In-Reply-To: <CAFdej01ZHkTVZuN_0RrGbFmoG4_NTnwm6KDAPM_sf=zHBHSRwg@mail.gmail.com>

Hi Arun,

On Mon, 2014-08-04 at 15:46 +0530, Arun Chandran wrote:
> The latest kexec code is working fine in LE/BE mode in UP configuration.
> 
> I had to change kexec-tools code a bit to make sure that "kexec -l"
> is not putting dtb at an area where kernel is building its initial page
> tables.

OK, I'll add in code to handle this.

> Now before trying SMP configuration I want to know whether the below "kexec -e"
> scenarios are valid(required)?
> 
> 1st stage                                  |               2nd stage
> ---------------------------------------------------------------------------------------------
> LE UP                                      |               BE UP
> LE UP                                      |               BE SMP
> LE UP                                      |               LE SMP
> LE SMP                                   |               LE UP
> LE SMP                                   |               BE UP
> LE SMP                                   |               BE SMP

Kexec should work for all combinations of kernel options.  A
bootloader (1st stage) may want to be UP, and custom crash
dump kernels (2nd stage) are generally UP.  UP->UP may have
limited use.  I think all these listed are important to test
though, and going the other way also, so BE-SMP->LE-SMP for
example.

-Geoff

  parent reply	other threads:[~2014-08-04 17:21 UTC|newest]

Thread overview: 49+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <CAFdej006OSyhgDcJ2iZdbjt+PtysN=i_+9Dr4GTmr=+t5yg4Kw@mail.gmail.com>
2014-07-15 17:04 ` Kexec on arm64 Geoff Levand
2014-07-16 17:57   ` Feng Kan
2014-07-16 23:04     ` Geoff Levand
2014-07-22  9:44       ` Arun Chandran
2014-07-22 13:25         ` Arun Chandran
2014-07-24  0:38           ` Geoff Levand
2014-07-24  9:36             ` Mark Rutland
2014-07-24 12:49               ` Arun Chandran
2014-07-25  0:17               ` Geoff Levand
2014-07-25 10:31                 ` Arun Chandran
2014-07-25 10:36                 ` Mark Rutland
2014-07-25 11:48                 ` Arun Chandran
2014-07-25 12:14                   ` Mark Rutland
2014-07-25 15:29                     ` Arun Chandran
2014-07-26  0:18                   ` Geoff Levand
2014-07-28 15:00                     ` Arun Chandran
2014-07-28 15:38                       ` Mark Rutland
2014-07-29  0:09                         ` Geoff Levand
2014-07-29  9:10                           ` Mark Rutland
2014-07-29 12:32                           ` Arun Chandran
2014-07-29 13:35                             ` Mark Rutland
2014-07-29 21:19                               ` Geoff Levand
2014-07-30  7:22                                 ` Arun Chandran
2014-08-01 11:13                                   ` Arun Chandran
2014-08-03 14:47                                     ` Mark Rutland
2014-08-04 10:16                                   ` Arun Chandran
2014-08-04 11:35                                     ` Mark Rutland
2014-08-07  0:40                                       ` Geoff Levand
2014-08-07  9:59                                         ` Mark Rutland
2014-08-07 17:09                                           ` Geoff Levand
2014-08-04 17:21                                     ` Geoff Levand [this message]
2014-08-06 13:54                                       ` Arun Chandran
2014-08-06 15:51                                         ` Arun Chandran
2014-08-07 20:07                                         ` Geoff Levand
2014-08-08  5:46                                           ` Arun Chandran
2014-08-08 10:03                                             ` Arun Chandran
2014-08-12  5:42                                               ` Arun Chandran
2014-08-13 11:09                                                 ` Arun Chandran
2014-08-26 22:32                                                   ` Geoff Levand
2014-08-27  4:56                                                     ` Arun Chandran
2014-07-30  5:46                               ` Arun Chandran
2014-07-30  9:16                                 ` Mark Rutland
2014-07-30  7:01                               ` Arun Chandran
2014-07-25 10:26               ` Arun Chandran
2014-07-25 11:29                 ` Mark Rutland
2014-07-24 11:50             ` Arun Chandran
2014-07-30  3:26           ` Feng Kan
2014-07-24  0:10         ` Geoff Levand
2014-07-24  9:13         ` Mark Rutland

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