[PATCH 1/3] kexec/ppc64: move to device tree version 17

[WANG Chao]

Backport the following commit from upstream kexec-tools:

commit 2ca2203
Author: Laurent Dufour <ldufour at linux.vnet.ibm.com>
Date:   Mon Jun 16 14:42:43 2014 +0200

    kexec/ppc64: move to device tree version 17

    Kernel commit e6a6928c3ea1d0195ed75a091e345696b916c09b changed the way the
    device tree is processed in the kernel. Now version 2 is no more supported.

    This patch move the version of the device tree generated in ppc64
    environment from 2 to 17, allowing to kexec kernel 3.16.

    In addition, automates the define of NEED_STRUCTURE_BLOCK_EXTRA_PAD which
    should not be set for DT version 16 and above.

    Signed-off-by: Laurent Dufour <ldufour at linux.vnet.ibm.com>
    Signed-off-by: Simon Horman <horms at verge.net.au>

This is part of the work to enable ppc64le.

Signed-off-by: WANG Chao <chaowang at redhat.com>
---
 ...exec-ppc64-move-to-device-tree-version-17.patch | 42 ++++++++++++++++++++++
 kexec-tools.spec                                   |  2 ++
 2 files changed, 44 insertions(+)
 create mode 100644 kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch

diff --git a/kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch b/kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch
new file mode 100644
index 0000000..c7a4bb4
--- /dev/null
+++ b/kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch
@@ -0,0 +1,42 @@
+From 2ca220389d212249cc842d49084c95e524fb299b Mon Sep 17 00:00:00 2001
+From: Laurent Dufour <ldufour at linux.vnet.ibm.com>
+Date: Mon, 16 Jun 2014 14:42:43 +0200
+Subject: [PATCH] kexec/ppc64: move to device tree version 17
+
+Kernel commit e6a6928c3ea1d0195ed75a091e345696b916c09b changed the way the
+device tree is processed in the kernel. Now version 2 is no more supported.
+
+This patch move the version of the device tree generated in ppc64
+environment from 2 to 17, allowing to kexec kernel 3.16.
+
+In addition, automates the define of NEED_STRUCTURE_BLOCK_EXTRA_PAD which
+should not be set for DT version 16 and above.
+
+Signed-off-by: Laurent Dufour <ldufour at linux.vnet.ibm.com>
+Signed-off-by: Simon Horman <horms at verge.net.au>
+---
+ kexec/arch/ppc64/kexec-ppc64.h | 8 +++++---
+ 1 file changed, 5 insertions(+), 3 deletions(-)
+
+diff --git a/kexec/arch/ppc64/kexec-ppc64.h b/kexec/arch/ppc64/kexec-ppc64.h
+index 9a0aecf..89ee942 100644
+--- a/kexec/arch/ppc64/kexec-ppc64.h
++++ b/kexec/arch/ppc64/kexec-ppc64.h
+@@ -6,9 +6,11 @@
+ #define CORE_TYPE_ELF32 1
+ #define CORE_TYPE_ELF64 2
+ 
+-#define BOOT_BLOCK_VERSION 2
+-#define BOOT_BLOCK_LAST_COMP_VERSION 2
+-#define NEED_STRUCTURE_BLOCK_EXTRA_PAD
++#define BOOT_BLOCK_VERSION 17
++#define BOOT_BLOCK_LAST_COMP_VERSION 17
++#if (BOOT_BLOCK_VERSION < 16)
++#	define NEED_STRUCTURE_BLOCK_EXTRA_PAD
++#endif
+ #define HAVE_DYNAMIC_MEMORY
+ #define NEED_RESERVE_DTB
+ 
+-- 
+1.9.3
+
diff --git a/kexec-tools.spec b/kexec-tools.spec
index 9eb1ee3..60db2ef 100644
--- a/kexec-tools.spec
+++ b/kexec-tools.spec
@@ -67,6 +67,7 @@ Patch101: kexec-tools-2.0.7-Provide-an-option-to-use-new-kexec-system-call.patch
 #
 # Patches 301 through 400 are meant for ppc64 kexec-tools enablement
 #
+Patch301: kexec-tools-2.0.7-kexec-ppc64-move-to-device-tree-version-17.patch
 
 #
 # Patches 401 through 500 are meant for s390 kexec-tools enablement
@@ -128,6 +129,7 @@ tar -z -x -v -f %{SOURCE23}
 %patch605 -p1
 %patch606 -p1
 %patch607 -p1
+%patch301 -p1
 
 %ifarch ppc
 %define archdef ARCH=ppc
-- 
1.9.3