xc_core: introduce xc_core_arch_gpfn_may_present() hook

# HG changeset patch
# User yamahatavalinux.co.jp
# Date 1188384201 -32400
# Node ID ab3a6dbca87306bd74c691575226d9071d786c07
# Parent  97c0b1a793162f39251183672b7b057386772aa8
Introduce xc_core_arch_gpfn_may_present() hook.
On ia64 trying to map a foreign domain page which isn't
allocated cause
annoying warning message. xm dump-core results in too many
warnings.
With this hook, ia64 dump-core can suprress warning.
PATCHNAME: introduce_xc_core_arch_gpfn_may_present

Signed-off-by: Isaku Yamahata <yamahatavalinux.co.jp>

diff -r 97c0b1a79316 -r ab3a6dbca873 tools/libxc/xc_core.c
--- a/tools/libxc/xc_core.c	Wed Aug 29 19:02:16 2007 +0900
+++ b/tools/libxc/xc_core.c	Wed Aug 29 19:43:21 2007 +0900
 -474,8
+474,9  xc_domain_dumpcore_via_callback(int xc_h
     }
 
     /* obtain memory map */
-    sts = xc_core_arch_memory_map_get(xc_handle, &info,
live_shinfo,
-                                      &memory_map,
&nr_memory_map);
+    sts = xc_core_arch_memory_map_get(xc_handle,
&arch_ctxt, &info,
+                                      live_shinfo,
&memory_map,
+                                      &nr_memory_map);
     if ( sts != 0 )
         goto out;
 
 -756,6
+757,9  xc_domain_dumpcore_via_callback(int xc_h
             }
             else
             {
+                if (
!xc_core_arch_gpfn_may_present(&arch_ctxt, i) )
+                    continue;
+
                 gmfn = i;
                 pfn_array[j] = i;
             }
diff -r 97c0b1a79316 -r ab3a6dbca873 tools/libxc/xc_core.h
--- a/tools/libxc/xc_core.h	Wed Aug 29 19:02:16 2007 +0900
+++ b/tools/libxc/xc_core.h	Wed Aug 29 19:43:21 2007 +0900
 -133,8
+133,10  struct xc_core_memory_map {
 };
 typedef struct xc_core_memory_map xc_core_memory_map_t;
 int xc_core_arch_auto_translated_physmap(const xc_dominfo_t
*info);
-int xc_core_arch_memory_map_get(int xc_handle, xc_dominfo_t
*info,
-                                shared_info_t
*live_shinfo,
+struct xc_core_arch_context;
+int xc_core_arch_memory_map_get(int xc_handle,
+                                struct xc_core_arch_context
*arch_ctxt,
+                                xc_dominfo_t *info,
shared_info_t *live_shinfo,
                                 xc_core_memory_map_t
**mapp,
                                 unsigned int *nr_entries);
 int xc_core_arch_map_p2m(int xc_handle, xc_dominfo_t
*info,
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_ia64.c
--- a/tools/libxc/xc_core_ia64.c	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_ia64.c	Wed Aug 29 19:43:21 2007
+0900
 -158,8
+158,8  memory_map_get_old(int xc_handle, xc_dom
 }
 
 int
-xc_core_arch_memory_map_get(int xc_handle, xc_dominfo_t
*info,
-                            shared_info_t *live_shinfo,
+xc_core_arch_memory_map_get(int xc_handle, struct
xc_core_arch_context *unused,
+                            xc_dominfo_t *info,
shared_info_t *live_shinfo,
                             xc_core_memory_map_t **mapp,
                             unsigned int *nr_entries)
 {
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_ia64.h
--- a/tools/libxc/xc_core_ia64.h	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_ia64.h	Wed Aug 29 19:43:21 2007
+0900
 -46,6
+46,7  int
 int
 xc_core_arch_context_dump(struct xc_core_arch_context*
arch_ctxt,
                           void* args, dumpcore_rtn_t
dump_rtn);
+#define xc_core_arch_gpfn_may_present(arch_ctxt, i)        
    (1)
 
 #endif /* XC_CORE_IA64_H */
 
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_powerpc.c
--- a/tools/libxc/xc_core_powerpc.c	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_powerpc.c	Wed Aug 29 19:43:21 2007
+0900
 -43,8
+43,8  xc_core_arch_map_p2m(int xc_handle, xc_d
 }
 
 int
-xc_core_arch_memory_map_get(int xc_handle, xc_dominfo_t
*info,
-                            shared_info_t *live_shinfo,
+xc_core_arch_memory_map_get(int xc_handle, struct
xc_core_arch_context *unused,
+                            xc_dominfo_t *info,
shared_info_t *live_shinfo,
                             xc_core_memory_map_t **mapp,
                             unsigned int *nr_entries)
 {
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_powerpc.h
--- a/tools/libxc/xc_core_powerpc.h	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_powerpc.h	Wed Aug 29 19:43:21 2007
+0900
 -33,6
+33,7  struct xc_core_arch_context {
 #define xc_core_arch_context_get(arch_ctxt, ctxt,
xc_handle, domid) 
                                                            
    (0)
 #define xc_core_arch_context_dump(arch_ctxt, args,
dump_rtn)    (0)
+#define xc_core_arch_gpfn_may_present(arch_ctxt, i)        
    (1)
 
 static inline int
 xc_core_arch_context_get_shdr(struct xc_core_arch_context
*arch_ctxt, 
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_x86.c
--- a/tools/libxc/xc_core_x86.c	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_x86.c	Wed Aug 29 19:43:21 2007
+0900
 -33,8
+33,8  xc_core_arch_auto_translated_physmap(con
 }
 
 int
-xc_core_arch_memory_map_get(int xc_handle, xc_dominfo_t
*info,
-                            shared_info_t *live_shinfo,
+xc_core_arch_memory_map_get(int xc_handle, struct
xc_core_arch_context *unused,
+                            xc_dominfo_t *info,
shared_info_t *live_shinfo,
                             xc_core_memory_map_t **mapp,
                             unsigned int *nr_entries)
 {
diff -r 97c0b1a79316 -r ab3a6dbca873
tools/libxc/xc_core_x86.h
--- a/tools/libxc/xc_core_x86.h	Wed Aug 29 19:02:16 2007
+0900
+++ b/tools/libxc/xc_core_x86.h	Wed Aug 29 19:43:21 2007
+0900
 -40,6
+40,7  struct xc_core_arch_context {
 #define xc_core_arch_context_get(arch_ctxt, ctxt,
xc_handle, domid) 
                                                            
    (0)
 #define xc_core_arch_context_dump(arch_ctxt, args,
dump_rtn)    (0)
+#define xc_core_arch_gpfn_may_present(arch_ctxt, i)        
    (1)
 
 static inline int
 xc_core_arch_context_get_shdr(struct xc_core_arch_context
*arch_ctxt, 

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