From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/19] arm64 kexec kernel patches v13
Date: Thu, 21 Jan 2016 12:11:04 +0000 [thread overview]
Message-ID: <20160121121103.GE2581@leverpostej> (raw)
In-Reply-To: <20160120025621.GC2999@dhcp-128-65.nay.redhat.com>
On Wed, Jan 20, 2016 at 10:56:21AM +0800, Dave Young wrote:
> On 01/19/16 at 04:15pm, Geoff Levand wrote:
> > On Tue, 2016-01-19 at 20:32 +0800, Dave Young wrote:
> > > 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.
> >
> > I see no technical reason why the arm64 kernel cannot support
> > kexec_file_load.
>
> Cool, care to port it to kernel so that we have kexec_file_load only in arm64
> we do not need to support both kexec_load and kexec_file_load?
I have reasons for wanting kexec_load, even if we have kexec_file_load.
For example, being able to test modified DTBs during development, and
being able to kexec to non-Linux OSs.
I don't think we should drop kexec_load, as kexec_file_load is designed
such that it cannot be used for these purposes, while kexec_load is more
general.
I appreciate that we will need kexec_file_load for Secure Boot, and it
would be perfectly fine for your kdump userspace to require and always
use kexec_file_load.
Thanks,
Mark.
WARNING: multiple messages have this Message-ID (diff)
From: Mark Rutland <mark.rutland@arm.com>
To: Dave Young <dyoung@redhat.com>
Cc: Geoff Levand <geoff@infradead.org>,
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, marc.zyngier@arm.com,
kexec@lists.infradead.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 00/19] arm64 kexec kernel patches v13
Date: Thu, 21 Jan 2016 12:11:04 +0000 [thread overview]
Message-ID: <20160121121103.GE2581@leverpostej> (raw)
In-Reply-To: <20160120025621.GC2999@dhcp-128-65.nay.redhat.com>
On Wed, Jan 20, 2016 at 10:56:21AM +0800, Dave Young wrote:
> On 01/19/16 at 04:15pm, Geoff Levand wrote:
> > On Tue, 2016-01-19 at 20:32 +0800, Dave Young wrote:
> > > 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.
> >
> > I see no technical reason why the arm64 kernel cannot support
> > kexec_file_load.
>
> Cool, care to port it to kernel so that we have kexec_file_load only in arm64
> we do not need to support both kexec_load and kexec_file_load?
I have reasons for wanting kexec_load, even if we have kexec_file_load.
For example, being able to test modified DTBs during development, and
being able to kexec to non-Linux OSs.
I don't think we should drop kexec_load, as kexec_file_load is designed
such that it cannot be used for these purposes, while kexec_load is more
general.
I appreciate that we will need kexec_file_load for Secure Boot, and it
would be perfectly fine for your kdump userspace to require and always
use kexec_file_load.
Thanks,
Mark.
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next prev parent reply other threads:[~2016-01-21 12:11 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 ` [PATCH 00/19] arm64 kexec kernel patches v13 Dave Young
2016-01-19 12:32 ` 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 [this message]
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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