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[Xen-changelog] [IA64] Reseve memory of domain0 (fix dom0 boot panic)

from [Xen patchbot -unstable] [Permanent Link][Original]
To: xen-changelog@xxxxxxxxxxxxxxxxxxx
Subject: [Xen-changelog] [IA64] Reseve memory of domain0 (fix dom0 boot panic)
From: Xen patchbot -unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>
Date: Thu, 27 Apr 2006 10:33:01 +0000
Delivery-date: Thu, 27 Apr 2006 03:44:35 -0700
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# HG changeset patch
# User awilliam@xxxxxxxxxxx
# Node ID ddcd9c2676128136b6994c2e2f90902ddba5393c
# Parent  9d88feed1189fb59783460e6399913c903988826
[IA64] Reseve memory of domain0 (fix dom0 boot panic)

Our patch fix domain0 boot panic on large memory system.
(e.g. amount of installed memory is 16GB)

Memory of domain0 is not reserved now.
Our patch can make this memory reserved.
And we clean up initrd_start of domain0.

Signed-off-by: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
Signed-off-by: Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>

diff -r 9d88feed1189 -r ddcd9c267612 xen/arch/ia64/linux-xen/setup.c
--- a/xen/arch/ia64/linux-xen/setup.c   Tue Apr 25 22:38:25 2006 -0600
+++ b/xen/arch/ia64/linux-xen/setup.c   Tue Apr 25 22:52:49 2006 -0600
@@ -235,7 +235,13 @@ reserve_memory (void)
 #endif
        n++;
 
-#ifdef CONFIG_BLK_DEV_INITRD
+#ifdef XEN
+       rsvd_region[n].start = (unsigned long) 
__va(ia64_boot_param->domain_start);
+       rsvd_region[n].end   = (rsvd_region[n].start + 
ia64_boot_param->domain_size);
+       n++;
+#endif
+
+#if defined(XEN)||defined(CONFIG_BLK_DEV_INITRD)
        if (ia64_boot_param->initrd_start) {
                rsvd_region[n].start = (unsigned 
long)__va(ia64_boot_param->initrd_start);
                rsvd_region[n].end   = rsvd_region[n].start + 
ia64_boot_param->initrd_size;
diff -r 9d88feed1189 -r ddcd9c267612 xen/arch/ia64/xen/dom_fw.c
--- a/xen/arch/ia64/xen/dom_fw.c        Tue Apr 25 22:38:25 2006 -0600
+++ b/xen/arch/ia64/xen/dom_fw.c        Tue Apr 25 22:52:49 2006 -0600
@@ -1019,8 +1019,7 @@ dom_fw_init (struct domain *d, const cha
        if (d == dom0) {
                // XXX CONFIG_XEN_IA64_DOM0_VP
                // initrd_start address is hard coded in start_kernel()
-               bp->initrd_start = (dom0_start+dom0_size) -
-                 (PAGE_ALIGN(ia64_boot_param->initrd_size) + 4*1024*1024);
+               bp->initrd_start = ia64_boot_param->initrd_start;
                bp->initrd_size = ia64_boot_param->initrd_size;
        }
        else {
diff -r 9d88feed1189 -r ddcd9c267612 xen/arch/ia64/xen/xensetup.c
--- a/xen/arch/ia64/xen/xensetup.c      Tue Apr 25 22:38:25 2006 -0600
+++ b/xen/arch/ia64/xen/xensetup.c      Tue Apr 25 22:52:49 2006 -0600
@@ -279,16 +279,17 @@ void start_kernel(void)
     memmove(__va(initial_images_start),
           __va(ia64_boot_param->domain_start),
           ia64_boot_param->domain_size);
-//    ia64_boot_param->domain_start = initial_images_start;
+    ia64_boot_param->domain_start = initial_images_start;
 
     printk("ready to move initrd to 0x%lx with len %lx...",
           initial_images_start+PAGE_ALIGN(ia64_boot_param->domain_size),
           ia64_boot_param->initrd_size);
     
memmove(__va(initial_images_start+PAGE_ALIGN(ia64_boot_param->domain_size)),
-
           __va(ia64_boot_param->initrd_start),
           ia64_boot_param->initrd_size);
     printk("Done\n");
+    ia64_boot_param->initrd_start = initial_images_start +
+       PAGE_ALIGN(ia64_boot_param->domain_size);
 
     /* first find highest page frame number */
     max_page = 0;
diff -r 9d88feed1189 -r ddcd9c267612 
xen/include/asm-ia64/linux-xen/asm/README.origin
--- a/xen/include/asm-ia64/linux-xen/asm/README.origin  Tue Apr 25 22:38:25 
2006 -0600
+++ b/xen/include/asm-ia64/linux-xen/asm/README.origin  Tue Apr 25 22:52:49 
2006 -0600
@@ -11,6 +11,7 @@ io.h                  -> linux/include/asm-ia64/io.h
 io.h                   -> linux/include/asm-ia64/io.h
 kregs.h                        -> linux/include/asm-ia64/kregs.h
 mca_asm.h              -> linux/include/asm-ia64/mca_asm.h
+meminit.h              -> linux/include/asm-ia64/meminit.h
 page.h                 -> linux/include/asm-ia64/page.h
 pal.h                  -> linux/include/asm-ia64/pal.h
 pgalloc.h              -> linux/include/asm-ia64/pgalloc.h
diff -r 9d88feed1189 -r ddcd9c267612 
xen/include/asm-ia64/linux/asm/README.origin
--- a/xen/include/asm-ia64/linux/asm/README.origin      Tue Apr 25 22:38:25 
2006 -0600
+++ b/xen/include/asm-ia64/linux/asm/README.origin      Tue Apr 25 22:52:49 
2006 -0600
@@ -27,7 +27,6 @@ machvec.h             -> linux/include/asm-ia64/mac
 machvec.h              -> linux/include/asm-ia64/machvec.h
 machvec_hpsim.h                -> linux/include/asm-ia64/machvec_hpsim.h
 mca.h                  -> linux/include/asm-ia64/mca.h
-meminit.h              -> linux/include/asm-ia64/meminit.h
 numa.h                 -> linux/include/asm-ia64/numa.h
 numnodes.h             -> linux/include/asm-ia64/numnodes.h
 param.h                        -> linux/include/asm-ia64/param.h
diff -r 9d88feed1189 -r ddcd9c267612 
xen/include/asm-ia64/linux-xen/asm/meminit.h
--- /dev/null   Thu Jan 01 00:00:00 1970 +0000
+++ b/xen/include/asm-ia64/linux-xen/asm/meminit.h      Tue Apr 25 22:52:49 
2006 -0600
@@ -0,0 +1,70 @@
+#ifndef meminit_h
+#define meminit_h
+
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/config.h>
+
+/*
+ * Entries defined so far:
+ *     - boot param structure itself
+ *     - memory map
+#ifndef XEN
+ *     - initrd (optional)
+#endif
+ *     - command line string
+ *     - kernel code & data
+#ifdef XEN
+ *     - dom0 code & data
+ *     - initrd (optional)
+#endif
+ *
+ * More could be added if necessary
+ */
+#ifndef XEN
+#define IA64_MAX_RSVD_REGIONS 5
+#else
+#define IA64_MAX_RSVD_REGIONS 6
+#endif
+
+struct rsvd_region {
+       unsigned long start;    /* virtual address of beginning of element */
+       unsigned long end;      /* virtual address of end of element + 1 */
+};
+
+extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
+extern int num_rsvd_regions;
+
+extern void find_memory (void);
+extern void reserve_memory (void);
+extern void find_initrd (void);
+extern int filter_rsvd_memory (unsigned long start, unsigned long end, void 
*arg);
+
+/*
+ * For rounding an address to the next IA64_GRANULE_SIZE or order
+ */
+#define GRANULEROUNDDOWN(n)    ((n) & ~(IA64_GRANULE_SIZE-1))
+#define GRANULEROUNDUP(n)      (((n)+IA64_GRANULE_SIZE-1) & 
~(IA64_GRANULE_SIZE-1))
+#define ORDERROUNDDOWN(n)      ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
+
+#ifdef CONFIG_DISCONTIGMEM
+  extern void call_pernode_memory (unsigned long start, unsigned long len, 
void *func);
+#else
+# define call_pernode_memory(start, len, func) (*func)(start, len, 0)
+#endif
+
+#define IGNORE_PFN0    1       /* XXX fix me: ignore pfn 0 until TLB miss 
handler is updated... */
+
+#ifdef CONFIG_VIRTUAL_MEM_MAP
+# define LARGE_GAP     0x40000000 /* Use virtual mem map if hole is > than 
this */
+  extern unsigned long vmalloc_end;
+  extern struct page *vmem_map;
+  extern int find_largest_hole (u64 start, u64 end, void *arg);
+  extern int create_mem_map_page_table (u64 start, u64 end, void *arg);
+#endif
+
+#endif /* meminit_h */
diff -r 9d88feed1189 -r ddcd9c267612 xen/include/asm-ia64/linux/asm/meminit.h
--- a/xen/include/asm-ia64/linux/asm/meminit.h  Tue Apr 25 22:38:25 2006 -0600
+++ /dev/null   Thu Jan 01 00:00:00 1970 +0000
@@ -1,60 +0,0 @@
-#ifndef meminit_h
-#define meminit_h
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-
-#include <linux/config.h>
-
-/*
- * Entries defined so far:
- *     - boot param structure itself
- *     - memory map
- *     - initrd (optional)
- *     - command line string
- *     - kernel code & data
- *
- * More could be added if necessary
- */
-#define IA64_MAX_RSVD_REGIONS 5
-
-struct rsvd_region {
-       unsigned long start;    /* virtual address of beginning of element */
-       unsigned long end;      /* virtual address of end of element + 1 */
-};
-
-extern struct rsvd_region rsvd_region[IA64_MAX_RSVD_REGIONS + 1];
-extern int num_rsvd_regions;
-
-extern void find_memory (void);
-extern void reserve_memory (void);
-extern void find_initrd (void);
-extern int filter_rsvd_memory (unsigned long start, unsigned long end, void 
*arg);
-
-/*
- * For rounding an address to the next IA64_GRANULE_SIZE or order
- */
-#define GRANULEROUNDDOWN(n)    ((n) & ~(IA64_GRANULE_SIZE-1))
-#define GRANULEROUNDUP(n)      (((n)+IA64_GRANULE_SIZE-1) & 
~(IA64_GRANULE_SIZE-1))
-#define ORDERROUNDDOWN(n)      ((n) & ~((PAGE_SIZE<<MAX_ORDER)-1))
-
-#ifdef CONFIG_DISCONTIGMEM
-  extern void call_pernode_memory (unsigned long start, unsigned long len, 
void *func);
-#else
-# define call_pernode_memory(start, len, func) (*func)(start, len, 0)
-#endif
-
-#define IGNORE_PFN0    1       /* XXX fix me: ignore pfn 0 until TLB miss 
handler is updated... */
-
-#ifdef CONFIG_VIRTUAL_MEM_MAP
-# define LARGE_GAP     0x40000000 /* Use virtual mem map if hole is > than 
this */
-  extern unsigned long vmalloc_end;
-  extern struct page *vmem_map;
-  extern int find_largest_hole (u64 start, u64 end, void *arg);
-  extern int create_mem_map_page_table (u64 start, u64 end, void *arg);
-#endif
-
-#endif /* meminit_h */

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