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From: dyoung@redhat.com (Dave Young)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/19] arm64 kexec kernel patches v13
Date: Tue, 19 Jan 2016 20:32:30 +0800	[thread overview]
Message-ID: <20160119123230.GB2904@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <cover.1452884156.git.geoff@infradead.org>

On 01/15/16 at 07:18pm, Geoff Levand wrote:
> This series adds the core support for kexec re-boot and kdump on ARM64.  This
> version of the series combines Takahiro's kdump patches with my kexec patches.
> Please consider all patches for inclusion.
> 
> I just tested all the endian combinations of kexec LE->LE, LE->BE, BE->BE,
> BE->LE, and both LE an BE kdump, and all work as expected.
> 
> To load a second stage kernel and execute a kexec re-boot or to work with kdump
> on ARM64 systems a series of patches to kexec-tools [2], which have not yet been
> merged upstream, are needed.
> 
> To examine vmcore (/proc/vmcore), you should use
>   - gdb v7.7 or later
>   - crash v7.1.1 or later
> 
> [1]  https://git.kernel.org/cgit/linux/kernel/git/geoff/linux-kexec.git
> [2]  https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git
> 

Geoff, another question about kexec-tools part is, can the kexec-tools code
been written in kernel? We have the infrastructure for kexec_file_load.

In the future if we have to support loading a signed kernel then we still
need to do that, but we may have to support both the kexec-tools and the
in kernel loader for compatibility purpose. It will be hard to maintain.

Thanks
Dave

WARNING: multiple messages have this Message-ID (diff)
From: Dave Young <dyoung@redhat.com>
To: Geoff Levand <geoff@infradead.org>
Cc: Mark Rutland <mark.rutland@arm.com>,
	marc.zyngier@arm.com, Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	AKASHI Takahiro <takahiro.akashi@linaro.org>,
	James Morse <james.morse@arm.com>,
	christoffer.dall@linaro.org, kexec@lists.infradead.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 00/19] arm64 kexec kernel patches v13
Date: Tue, 19 Jan 2016 20:32:30 +0800	[thread overview]
Message-ID: <20160119123230.GB2904@dhcp-128-65.nay.redhat.com> (raw)
In-Reply-To: <cover.1452884156.git.geoff@infradead.org>

On 01/15/16 at 07:18pm, Geoff Levand wrote:
> This series adds the core support for kexec re-boot and kdump on ARM64.  This
> version of the series combines Takahiro's kdump patches with my kexec patches.
> Please consider all patches for inclusion.
> 
> I just tested all the endian combinations of kexec LE->LE, LE->BE, BE->BE,
> BE->LE, and both LE an BE kdump, and all work as expected.
> 
> To load a second stage kernel and execute a kexec re-boot or to work with kdump
> on ARM64 systems a series of patches to kexec-tools [2], which have not yet been
> merged upstream, are needed.
> 
> To examine vmcore (/proc/vmcore), you should use
>   - gdb v7.7 or later
>   - crash v7.1.1 or later
> 
> [1]  https://git.kernel.org/cgit/linux/kernel/git/geoff/linux-kexec.git
> [2]  https://git.kernel.org/cgit/linux/kernel/git/geoff/kexec-tools.git
> 

Geoff, another question about kexec-tools part is, can the kexec-tools code
been written in kernel? We have the infrastructure for kexec_file_load.

In the future if we have to support loading a signed kernel then we still
need to do that, but we may have to support both the kexec-tools and the
in kernel loader for compatibility purpose. It will be hard to maintain.

Thanks
Dave

_______________________________________________
kexec mailing list
kexec@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/kexec

  parent reply	other threads:[~2016-01-19 12:32 UTC|newest]

Thread overview: 174+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-01-15 19:18 [PATCH 00/19] arm64 kexec kernel patches v13 Geoff Levand
2016-01-15 19:18 ` Geoff Levand
2016-01-15 19:18 ` [PATCH 07/19] arm64: Add back cpu_reset routines Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 03/19] arm64: Add new asm macro copy_page Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-20 14:01   ` James Morse
2016-01-20 14:01     ` James Morse
2016-01-15 19:18 ` [PATCH 05/19] arm64: Convert hcalls to use HVC immediate value Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 02/19] arm64: kernel: Include _AC definition in page.h Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-18 10:05   ` Mark Rutland
2016-01-18 10:05     ` Mark Rutland
2016-01-15 19:18 ` [PATCH 09/19] Revert "arm64: remove dead code" Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:55   ` Mark Rutland
2016-01-15 19:55     ` Mark Rutland
2016-01-20 21:18     ` Geoff Levand
2016-01-20 21:18       ` Geoff Levand
2016-01-15 19:18 ` [PATCH 04/19] arm64: Cleanup SCTLR flags Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 20:07   ` Mark Rutland
2016-01-15 20:07     ` Mark Rutland
2016-01-18 10:12     ` Marc Zyngier
2016-01-18 10:12       ` Marc Zyngier
2016-01-19 11:59       ` Dave Martin
2016-01-19 11:59         ` Dave Martin
2016-01-25 15:09   ` James Morse
2016-01-25 15:09     ` James Morse
2016-01-15 19:18 ` [PATCH 08/19] Revert "arm64: mm: remove unused cpu_set_idmap_tcr_t0sz function" Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 01/19] arm64: Fold proc-macros.S into assembler.h Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 06/19] arm64: Add new hcall HVC_CALL_FUNC Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 17/19] arm64: kdump: enable kdump in the arm64 defconfig Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 15/19] arm64: kdump: implement machine_crash_shutdown() Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 19/19] arm64: kdump: relax BUG_ON() if more than one cpus are still active Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 12/19] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 18/19] arm64: kdump: update a kernel doc Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 20:16   ` Mark Rutland
2016-01-15 20:16     ` Mark Rutland
2016-01-18 10:26     ` AKASHI Takahiro
2016-01-18 10:26       ` AKASHI Takahiro
2016-01-18 11:29       ` Mark Rutland
2016-01-18 11:29         ` Mark Rutland
2016-01-19  5:31         ` AKASHI Takahiro
2016-01-19  5:31           ` AKASHI Takahiro
2016-01-19 12:10           ` Mark Rutland
2016-01-19 12:10             ` Mark Rutland
2016-01-20  4:34             ` AKASHI Takahiro
2016-01-20  4:34               ` AKASHI Takahiro
2016-01-19  1:43       ` Dave Young
2016-01-19  1:43         ` Dave Young
2016-01-19  1:50         ` Dave Young
2016-01-19  1:50           ` Dave Young
2016-01-19  5:35         ` AKASHI Takahiro
2016-01-19  5:35           ` AKASHI Takahiro
2016-01-19 12:28           ` Dave Young
2016-01-19 12:28             ` Dave Young
2016-01-19 12:51             ` Mark Rutland
2016-01-19 12:51               ` Mark Rutland
2016-01-19 13:45               ` Dave Young
2016-01-19 13:45                 ` Dave Young
2016-01-19 14:01                 ` Mark Rutland
2016-01-19 14:01                   ` Mark Rutland
2016-01-20  2:49                   ` Dave Young
2016-01-20  2:49                     ` Dave Young
2016-01-20  6:07                     ` AKASHI Takahiro
2016-01-20  6:07                       ` AKASHI Takahiro
2016-01-20  6:38                       ` Dave Young
2016-01-20  6:38                         ` Dave Young
2016-01-20  7:00                         ` Dave Young
2016-01-20  7:00                           ` Dave Young
2016-01-20  8:01                           ` AKASHI Takahiro
2016-01-20  8:01                             ` AKASHI Takahiro
2016-01-20  8:26                             ` Dave Young
2016-01-20  8:26                               ` Dave Young
2016-01-20 11:54                         ` Mark Rutland
2016-01-20 11:54                           ` Mark Rutland
2016-01-21  2:57                           ` Dave Young
2016-01-21  2:57                             ` Dave Young
2016-01-21  3:03                           ` Dave Young
2016-01-21  3:03                             ` Dave Young
2016-01-20 11:49                       ` Mark Rutland
2016-01-20 11:49                         ` Mark Rutland
2016-01-21  6:53                         ` AKASHI Takahiro
2016-01-21  6:53                           ` AKASHI Takahiro
2016-01-21 12:02                           ` Mark Rutland
2016-01-21 12:02                             ` Mark Rutland
2016-01-22  6:23                             ` AKASHI Takahiro
2016-01-22  6:23                               ` AKASHI Takahiro
2016-01-22 11:13                               ` Mark Rutland
2016-01-22 11:13                                 ` Mark Rutland
2016-02-02  5:18                                 ` AKASHI Takahiro
2016-02-02  5:18                                   ` AKASHI Takahiro
2016-01-25  3:19                               ` Dave Young
2016-01-25  3:19                                 ` Dave Young
2016-01-25  4:23                                 ` Dave Young
2016-01-25  4:23                                   ` Dave Young
2016-01-20 11:28                     ` Mark Rutland
2016-01-20 11:28                       ` Mark Rutland
2016-01-21  2:54                       ` Dave Young
2016-01-21  2:54                         ` Dave Young
2016-01-20  5:25                   ` AKASHI Takahiro
2016-01-20  5:25                     ` AKASHI Takahiro
2016-01-20 12:02                     ` Mark Rutland
2016-01-20 12:02                       ` Mark Rutland
2016-01-20 12:36                       ` Mark Rutland
2016-01-20 12:36                         ` Mark Rutland
2016-01-20 14:59                         ` Ard Biesheuvel
2016-01-20 14:59                           ` Ard Biesheuvel
2016-01-20 15:04                           ` Mark Rutland
2016-01-20 15:04                             ` Mark Rutland
2016-01-21  5:43                           ` AKASHI Takahiro
2016-01-21  5:43                             ` AKASHI Takahiro
2016-01-21 13:02                             ` Mark Rutland
2016-01-21 13:02                               ` Mark Rutland
2016-01-19 12:17         ` Mark Rutland
2016-01-19 12:17           ` Mark Rutland
2016-01-19 13:52           ` Dave Young
2016-01-19 13:52             ` Dave Young
2016-01-19 14:05             ` Mark Rutland
2016-01-19 14:05               ` Mark Rutland
2016-01-20  2:54               ` Dave Young
2016-01-20  2:54                 ` Dave Young
2016-01-15 19:18 ` [PATCH 10/19] arm64: kvm: allows kvm cpu hotplug Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-26 17:42   ` James Morse
2016-01-26 17:42     ` James Morse
2016-01-27  7:37     ` AKASHI Takahiro
2016-01-27  7:37       ` AKASHI Takahiro
2016-01-15 19:18 ` [PATCH 14/19] arm64: kdump: reserve memory for crash dump kernel Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 11/19] arm64/kexec: Add core kexec support Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 13/19] arm64/kexec: Add pr_debug output Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-15 19:18 ` [PATCH 16/19] arm64: kdump: add kdump support Geoff Levand
2016-01-15 19:18   ` Geoff Levand
2016-01-21 14:17   ` James Morse
2016-01-21 14:17     ` James Morse
2016-01-22  4:50     ` AKASHI Takahiro
2016-01-22  4:50       ` AKASHI Takahiro
2016-01-19 12:32 ` Dave Young [this message]
2016-01-19 12:32   ` [PATCH 00/19] arm64 kexec kernel patches v13 Dave Young
2016-01-20  0:15   ` Geoff Levand
2016-01-20  0:15     ` Geoff Levand
2016-01-20  2:56     ` Dave Young
2016-01-20  2:56       ` Dave Young
2016-01-20 21:15       ` Geoff Levand
2016-01-20 21:15         ` Geoff Levand
2016-01-21 12:11       ` Mark Rutland
2016-01-21 12:11         ` Mark Rutland
     [not found] ` <c7575f853ccc491bb0212e025aab1cc9@NASANEXM01H.na.qualcomm.com>
2016-03-01 17:54   ` Azriel Samson
2016-03-01 17:54     ` Azriel Samson
2016-03-02  1:17     ` Geoff Levand
2016-03-02  1:17       ` Geoff Levand
2016-03-02  1:38       ` Will Deacon
2016-03-02  1:38         ` Will Deacon
2016-03-02  2:28         ` AKASHI Takahiro
2016-03-02  2:28           ` AKASHI Takahiro
2016-03-02  8:07       ` Marc Zyngier
2016-03-02  8:07         ` Marc Zyngier
2016-03-02 12:33     ` Pratyush Anand
2016-03-02 12:33       ` Pratyush Anand
2016-03-02 16:51       ` Azriel Samson
2016-03-02 16:51         ` Azriel Samson

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