From: dyoung@redhat.com (Dave Young)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 00/10] arm64 kexec kernel patches V5
Date: Thu, 6 Nov 2014 09:56:42 +0800 [thread overview]
Message-ID: <20141106015642.GA2569@darkstar.nay.redhat.com> (raw)
In-Reply-To: <20141103194634.GA30366@leverpostej>
On 11/03/14 at 07:46pm, Mark Rutland wrote:
> On Fri, Oct 31, 2014 at 07:52:09AM +0000, Dave Young wrote:
> > Hi Geoff
> >
> > I tested your patches. The macihne is using spin-table cpu enable method
> > so I tried maxcpus=1 as you suggested.
> >
> > There's below issues for me, thoughts?
> >
> > 1. For acpi booting there's no /proc/device-tree so kexec can not find dtb
> > to use.
>
> Are you absolutely certain of this?
>
> To use ACPI, you must have booted via EFI, as the only mechanism for
> finding the ACPI tables is via EFI. If booted via EFI, the stub will
> have created a stub DTB if there is no provided DTB, to pass the command
> line and pointers to EFI data structures. This stub DTB should be
> present in the usual place.
Mark, I used kexec-tools from Geoff's git tree, it will create dtb from procfs
maybe I can pass external dtb to kexec-tools. What you mentioned should be true
though but I have not get idea how to get the dtb which kernel is using for boot
since it is not unflattened.
Thanks
Dave
next prev parent reply other threads:[~2014-11-06 1:56 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-23 23:10 [PATCH 00/10] arm64 kexec kernel patches V5 Geoff Levand
2014-10-23 23:10 ` [PATCH 05/10] arm64: Convert dts to use reserved-memory nodes Geoff Levand
2014-10-24 10:51 ` Mark Rutland
2014-10-24 10:59 ` Grant Likely
2014-10-24 12:27 ` Mark Rutland
2014-10-24 14:45 ` Grant Likely
2014-10-31 23:44 ` Geoff Levand
2014-11-03 20:02 ` Mark Rutland
2014-11-03 22:26 ` Rob Herring
2014-11-04 11:35 ` Mark Rutland
2014-11-04 11:37 ` Grant Likely
2014-10-23 23:10 ` [PATCH 03/10] arm64: Add new hcall HVC_CALL_FUNC Geoff Levand
2014-10-23 23:10 ` [PATCH 02/10] arm64: Convert hcalls to use ISS field Geoff Levand
2014-10-23 23:10 ` [PATCH 08/10] arm64/kexec: Add core kexec support Geoff Levand
2014-10-24 10:28 ` Mark Rutland
2014-11-13 2:19 ` Geoff Levand
2014-11-17 16:38 ` Mark Rutland
2014-11-17 20:20 ` Geoff Levand
2014-11-07 11:01 ` Arun Chandran
2014-11-12 21:54 ` Geoff Levand
2014-11-13 9:52 ` Arun Chandran
2014-11-17 3:52 ` Dave Young
2014-10-23 23:10 ` [PATCH 04/10] arm64: Add EL2 switch to soft_restart Geoff Levand
2014-10-24 10:57 ` Mark Rutland
2014-10-31 23:47 ` Geoff Levand
2014-10-23 23:10 ` [PATCH 06/10] arm64: Update booting.txt to reserved-memory nodes Geoff Levand
2014-10-24 10:54 ` Mark Rutland
2014-10-24 11:04 ` Grant Likely
2014-10-24 12:18 ` Mark Rutland
2014-10-24 13:54 ` Grant Likely
2014-10-24 14:10 ` Mark Rutland
2014-10-24 14:47 ` Grant Likely
2014-10-23 23:10 ` [PATCH 01/10] arm64/kvm: Fix assembler compatibility of macros Geoff Levand
2014-10-24 9:24 ` Mark Rutland
2014-10-27 12:13 ` Will Deacon
2014-10-27 12:45 ` Christoffer Dall
2014-10-31 23:06 ` [PATCH V2 " Geoff Levand
2014-10-23 23:10 ` [PATCH 07/10] arm64: Move proc-macros.S to include/asm Geoff Levand
2014-10-23 23:10 ` [PATCH 10/10] arm64/kexec: Add pr_devel output Geoff Levand
2014-10-23 23:10 ` [PATCH 09/10] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2014-10-24 10:31 ` Mark Rutland
2014-10-31 23:50 ` Geoff Levand
2014-11-03 20:05 ` Mark Rutland
2014-11-04 1:49 ` Geoff Levand
2014-10-31 7:52 ` [PATCH 00/10] arm64 kexec kernel patches V5 Dave Young
2014-10-31 23:25 ` Geoff Levand
2014-11-06 2:01 ` Dave Young
2014-11-13 8:37 ` Dave Young
2014-11-13 23:50 ` Geoff Levand
2014-11-17 3:49 ` Dave Young
2014-11-03 19:46 ` Mark Rutland
2014-11-06 1:56 ` Dave Young [this message]
2014-11-06 15:08 ` Mark Rutland
2014-11-07 0:41 ` Grant Likely
2014-11-07 10:16 ` Mark Rutland
2014-11-07 10:41 ` Ard Biesheuvel
2014-11-07 10:45 ` Ard Biesheuvel
2014-11-07 10:46 ` Ard Biesheuvel
2014-11-07 11:35 ` Mark Rutland
2014-11-07 11:42 ` Ard Biesheuvel
2014-11-07 22:34 ` Grant Likely
2014-11-06 12:16 ` Arun Chandran
2014-11-06 15:28 ` Mark Rutland
2014-11-06 16:13 ` Arun Chandran
2014-11-06 18:25 ` Geoff Levand
2014-11-07 6:26 ` Arun Chandran
2014-11-06 18:39 ` Mark Rutland
2014-11-07 6:36 ` Arun Chandran
2014-11-10 7:17 ` Dave Young
2014-11-10 8:35 ` Arun Chandran
2014-11-10 9:24 ` Dave Young
2014-11-12 9:56 ` Dave Young
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