[XEN] Kexec / Kdump: Code shared between x86_32 and x86_64

This patch contains Kexec / Kdump code shared between x86_32 and x86_64.

Signed-Off-By: Magnus Damm <magnus@valinux.co.jp>
Signed-Off-By: Simon Horman <horms@verge.net.au>

3 files changed, 157 insertions, 0 deletions

diff --git a/patches/linux-2.6.16.33/git-2a8a3d5b65e86ec1dfef7d268c64a909eab94af7.patch b/patches/linux-2.6.16.33/git-2a8a3d5b65e86ec1dfef7d268c64a909eab94af7.patch
new file mode 100644
index 0000000000..3e7c024b38
--- /dev/null
+++ b/patches/linux-2.6.16.33/git-2a8a3d5b65e86ec1dfef7d268c64a909eab94af7.patch
@@ -0,0 +1,62 @@
+From: Eric W. Biederman <ebiederm@xmission.com>
+Date: Sun, 30 Jul 2006 10:03:20 +0000 (-0700)
+Subject: [PATCH] machine_kexec.c: Fix the description of segment handling
+X-Git-Tag: v2.6.18-rc4
+X-Git-Url: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2a8a3d5b65e86ec1dfef7d268c64a909eab94af7
+
+[PATCH] machine_kexec.c: Fix the description of segment handling
+
+One of my original comments in machine_kexec was unclear
+and this should fix it.
+
+Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
+Cc: Andi Kleen <ak@muc.de>
+Acked-by: Horms <horms@verge.net.au>
+Signed-off-by: Andrew Morton <akpm@osdl.org>
+Signed-off-by: Linus Torvalds <torvalds@osdl.org>
+---
+
+--- a/arch/i386/kernel/machine_kexec.c
++++ b/arch/i386/kernel/machine_kexec.c
+@@ -189,14 +189,11 @@ NORET_TYPE void machine_kexec(struct kim
+ 	memcpy((void *)reboot_code_buffer, relocate_new_kernel,
+ 						relocate_new_kernel_size);
+ 
+-	/* The segment registers are funny things, they are
+-	 * automatically loaded from a table, in memory wherever you
+-	 * set them to a specific selector, but this table is never
+-	 * accessed again you set the segment to a different selector.
+-	 *
+-	 * The more common model is are caches where the behide
+-	 * the scenes work is done, but is also dropped at arbitrary
+-	 * times.
++	/* The segment registers are funny things, they have both a
++	 * visible and an invisible part.  Whenever the visible part is
++	 * set to a specific selector, the invisible part is loaded
++	 * with from a table in memory.  At no other time is the
++	 * descriptor table in memory accessed.
+ 	 *
+ 	 * I take advantage of this here by force loading the
+ 	 * segments, before I zap the gdt with an invalid value.
+--- a/arch/x86_64/kernel/machine_kexec.c
++++ b/arch/x86_64/kernel/machine_kexec.c
+@@ -207,14 +207,11 @@ NORET_TYPE void machine_kexec(struct kim
+ 	__flush_tlb();
+ 
+ 
+-	/* The segment registers are funny things, they are
+-	 * automatically loaded from a table, in memory wherever you
+-	 * set them to a specific selector, but this table is never
+-	 * accessed again unless you set the segment to a different selector.
+-	 *
+-	 * The more common model are caches where the behide
+-	 * the scenes work is done, but is also dropped at arbitrary
+-	 * times.
++	/* The segment registers are funny things, they have both a
++	 * visible and an invisible part.  Whenever the visible part is
++	 * set to a specific selector, the invisible part is loaded
++	 * with from a table in memory.  At no other time is the
++	 * descriptor table in memory accessed.
+ 	 *
+ 	 * I take advantage of this here by force loading the
+ 	 * segments, before I zap the gdt with an invalid value.
diff --git a/patches/linux-2.6.16.33/git-2efe55a9cec8418f0e0cde3dc3787a42fddc4411.patch b/patches/linux-2.6.16.33/git-2efe55a9cec8418f0e0cde3dc3787a42fddc4411.patch
new file mode 100644
index 0000000000..9d0b701ffb
--- /dev/null
+++ b/patches/linux-2.6.16.33/git-2efe55a9cec8418f0e0cde3dc3787a42fddc4411.patch
@@ -0,0 +1,93 @@
+From: Tobias Klauser <tklauser@nuerscht.ch>
+Date: Mon, 26 Jun 2006 16:57:34 +0000 (+0200)
+Subject: Storage class should be first
+X-Git-Tag: v2.6.18-rc1
+X-Git-Url: http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=2efe55a9cec8418f0e0cde3dc3787a42fddc4411
+
+Storage class should be first
+
+Storage class should be before const
+
+Signed-off-by: Tobias Klauser <tklauser@nuerscht.ch>
+Signed-off-by: Adrian Bunk <bunk@stusta.de>
+---
+
+--- a/arch/i386/kernel/machine_kexec.c
++++ b/arch/i386/kernel/machine_kexec.c
+@@ -133,9 +133,9 @@ typedef asmlinkage NORET_TYPE void (*rel
+ 					unsigned long start_address,
+ 					unsigned int has_pae) ATTRIB_NORET;
+ 
+-const extern unsigned char relocate_new_kernel[];
++extern const unsigned char relocate_new_kernel[];
+ extern void relocate_new_kernel_end(void);
+-const extern unsigned int relocate_new_kernel_size;
++extern const unsigned int relocate_new_kernel_size;
+ 
+ /*
+  * A architecture hook called to validate the
+--- a/arch/powerpc/kernel/machine_kexec_32.c
++++ b/arch/powerpc/kernel/machine_kexec_32.c
+@@ -30,8 +30,8 @@ typedef NORET_TYPE void (*relocate_new_k
+  */
+ void default_machine_kexec(struct kimage *image)
+ {
+-	const extern unsigned char relocate_new_kernel[];
+-	const extern unsigned int relocate_new_kernel_size;
++	extern const unsigned char relocate_new_kernel[];
++	extern const unsigned int relocate_new_kernel_size;
+ 	unsigned long page_list;
+ 	unsigned long reboot_code_buffer, reboot_code_buffer_phys;
+ 	relocate_new_kernel_t rnk;
+--- a/arch/ppc/kernel/machine_kexec.c
++++ b/arch/ppc/kernel/machine_kexec.c
+@@ -25,8 +25,8 @@ typedef NORET_TYPE void (*relocate_new_k
+ 				unsigned long reboot_code_buffer,
+ 				unsigned long start_address) ATTRIB_NORET;
+ 
+-const extern unsigned char relocate_new_kernel[];
+-const extern unsigned int relocate_new_kernel_size;
++extern const unsigned char relocate_new_kernel[];
++extern const unsigned int relocate_new_kernel_size;
+ 
+ void machine_shutdown(void)
+ {
+--- a/arch/s390/kernel/machine_kexec.c
++++ b/arch/s390/kernel/machine_kexec.c
+@@ -27,8 +27,8 @@ static void kexec_halt_all_cpus(void *);
+ 
+ typedef void (*relocate_kernel_t) (kimage_entry_t *, unsigned long);
+ 
+-const extern unsigned char relocate_kernel[];
+-const extern unsigned long long relocate_kernel_len;
++extern const unsigned char relocate_kernel[];
++extern const unsigned long long relocate_kernel_len;
+ 
+ int
+ machine_kexec_prepare(struct kimage *image)
+--- a/arch/sh/kernel/machine_kexec.c
++++ b/arch/sh/kernel/machine_kexec.c
+@@ -25,8 +25,8 @@ typedef NORET_TYPE void (*relocate_new_k
+ 				unsigned long start_address,
+ 				unsigned long vbr_reg) ATTRIB_NORET;
+ 
+-const extern unsigned char relocate_new_kernel[];
+-const extern unsigned int relocate_new_kernel_size;
++extern const unsigned char relocate_new_kernel[];
++extern const unsigned int relocate_new_kernel_size;
+ extern void *gdb_vbr_vector;
+ 
+ /*
+--- a/arch/x86_64/kernel/machine_kexec.c
++++ b/arch/x86_64/kernel/machine_kexec.c
+@@ -149,8 +149,8 @@ typedef NORET_TYPE void (*relocate_new_k
+ 					unsigned long start_address,
+ 					unsigned long pgtable) ATTRIB_NORET;
+ 
+-const extern unsigned char relocate_new_kernel[];
+-const extern unsigned long relocate_new_kernel_size;
++extern const unsigned char relocate_new_kernel[];
++extern const unsigned long relocate_new_kernel_size;
+ 
+ int machine_kexec_prepare(struct kimage *image)
+ {
diff --git a/patches/linux-2.6.16.33/series b/patches/linux-2.6.16.33/series
index 8d3ec1a0df..025a7be77d 100644
--- a/patches/linux-2.6.16.33/series
+++ b/patches/linux-2.6.16.33/series
@@ -1,4 +1,6 @@
 kexec-generic.patch
+git-2efe55a9cec8418f0e0cde3dc3787a42fddc4411.patch
+git-2a8a3d5b65e86ec1dfef7d268c64a909eab94af7.patch
 blktap-aio-16_03_06.patch
 device_bind.patch
 fix-hz-suspend.patch