linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
From: mark.rutland@arm.com (Mark Rutland)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/7] arm64 kexec kernel patches V3
Date: Wed, 8 Oct 2014 10:42:58 +0100	[thread overview]
Message-ID: <20141008094258.GG27216@leverpostej> (raw)
In-Reply-To: <20141007134006.GC27464@redhat.com>

[Cc'ing the arm efi guys]

On Tue, Oct 07, 2014 at 02:40:06PM +0100, Vivek Goyal wrote:
> On Fri, Oct 03, 2014 at 02:16:11PM -0700, Geoff Levand wrote:
> > Hi,
> > 
> > On Wed, 2014-10-01 at 11:19 -0400, Vivek Goyal wrote:
> > > On Thu, Sep 25, 2014 at 12:23:26AM +0000, Geoff Levand wrote:
> > > > Hi All,
> > > > 
> > > > This series adds the core support for kexec re-boots on arm64.  I have tested
> > > > with the ARM VE fast model using various kernel config options for both the
> > > > first and second stage kernels.
> > > 
> > > Does this patch series work with kexec on UEFI machines?
> > 
> > I have not done much more than some simple re-boot tests using the
> > base model (FVP_Base_AEMv8A-AEMv8A) and the Linaro 14.08 efi build,
> > but yes, it should work.
> 
> [CC Dave Young ]
> 
> I have not looked at the user space patches but are you preparing efi
> setup data and passing all the runtime map information to second kernel.
> 
> I am hoping on arm64 we have the CONFIG_EFI_RUNTIME_MAP=y and it works
> well.

>From a quick look at mainline that config option just gates exposing
that info under sysfs, and we never call efi_runtime_map_setup on arm64.
I gues the x86 kexec tool parses that and sets up some data structure?

For arm64 we have runtime map information in the initial DTB, and this
should have been copied into the DTB we pass to the second kernel. See
Documentation/arm/uefi.txt and drivers/firmware/efi/libstub/fdt.c.

Is that sufficient?

Mark.

  parent reply	other threads:[~2014-10-08  9:42 UTC|newest]

Thread overview: 65+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-09-25  0:23 [PATCH 0/7] arm64 kexec kernel patches V3 Geoff Levand
2014-09-25  0:23 ` [PATCH 3/7] arm64: Add new hcall HVC_CALL_FUNC Geoff Levand
2014-09-25  0:23 ` [PATCH 4/7] arm64: Add EL2 switch to soft_restart Geoff Levand
2014-09-25  0:23 ` [PATCH 2/7] arm64: Convert hcalls to use ISS field Geoff Levand
2014-10-03 10:51   ` Mark Rutland
2014-10-03 21:56     ` Geoff Levand
2014-10-06 10:13       ` Mark Rutland
2014-09-25  0:23 ` [PATCH 1/7] arm64/kvm: Fix assembler compatibility of macros Geoff Levand
2014-10-03 10:26   ` Mark Rutland
2014-10-03 22:27     ` Geoff Levand
2014-10-06 10:10       ` Mark Rutland
2014-09-25  0:23 ` [PATCH 7/7] arm64/kexec: Enable kexec in the arm64 defconfig Geoff Levand
2014-09-25  0:23 ` [PATCH 5/7] arm64: Move proc-macros.S to include/asm Geoff Levand
2014-09-25  0:23 ` [PATCH 6/7] arm64/kexec: Add core kexec support Geoff Levand
2014-09-25 18:28   ` Vivek Goyal
2014-09-25 19:02     ` Geoff Levand
2014-09-25 19:08       ` Vivek Goyal
2014-09-30 18:18   ` Vivek Goyal
2014-09-30 19:54     ` Geoff Levand
2014-10-01 14:56       ` Vivek Goyal
2014-10-03 18:35         ` Geoff Levand
2014-10-07 13:44           ` Vivek Goyal
2014-10-07 18:42             ` Geoff Levand
2014-10-07 18:45               ` Vivek Goyal
2014-10-07 20:12                 ` Geoff Levand
2014-10-07 20:22                   ` Vivek Goyal
2014-10-09 22:26                     ` Geoff Levand
2014-10-23 23:08                       ` Geoff Levand
2014-10-08  9:28                   ` Mark Rutland
2014-10-07 18:48               ` Vivek Goyal
2014-10-01 16:16       ` Mark Rutland
2014-10-01 17:36         ` Vivek Goyal
2014-10-01 17:56           ` Mark Rutland
2014-10-01 17:47         ` Vivek Goyal
2014-10-01 18:03           ` Mark Rutland
2014-10-01 18:09             ` Vivek Goyal
2014-10-01 18:19               ` Mark Rutland
2014-10-01 18:31                 ` Vivek Goyal
2014-10-01 19:22             ` Vivek Goyal
2014-10-02 10:26               ` Mark Rutland
2014-10-02 13:54                 ` Vivek Goyal
2014-10-02 16:53                   ` Mark Rutland
2014-09-30 23:59   ` [PATCH V2 " Geoff Levand
2014-09-30 20:29 ` [PATCH 0/7] arm64 kexec kernel patches V3 Vivek Goyal
2014-09-30 21:27   ` Geoff Levand
2014-10-02 19:08     ` Vivek Goyal
2014-10-02 22:59       ` Geoff Levand
2014-10-07 13:43         ` Vivek Goyal
2014-10-07 14:06           ` Mark Rutland
2014-10-01 15:19 ` Vivek Goyal
2014-10-03 21:16   ` Geoff Levand
2014-10-07 13:40     ` Vivek Goyal
2014-10-07 18:29       ` Geoff Levand
2014-10-08  9:42       ` Mark Rutland [this message]
2014-10-09  3:21         ` Dave Young
2014-10-09 10:09           ` Mark Rutland
2014-10-09 10:19             ` Ard Biesheuvel
2014-10-10  5:30             ` Dave Young
2014-10-07 15:22     ` Mark Rutland
2014-10-07 18:28       ` Geoff Levand
2014-10-07 18:09 ` Vivek Goyal
2014-10-07 20:07   ` Geoff Levand
2014-10-08  9:52     ` Leif Lindholm
2014-10-08 10:07       ` Mark Rutland
2014-10-09  9:22 ` Will Deacon

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20141008094258.GG27216@leverpostej \
    --to=mark.rutland@arm.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).