[Xen-changelog] [xen-unstable] [HVM] Save/restore: qemu-dm should calculate bitmap size from maximum gpfn

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>
# Date 1175793141 -3600
# Node ID 3b4de5f415c9fec780d42c36c2b8a20cd01971d5
# Parent  83ce6f4da2120231698a9db80b499ed3f6240a33
[HVM] Save/restore: qemu-dm should calculate bitmap size from maximum gpfn
like xc_save does.
Signed-off-by: Tim Deegan <Tim.Deegan@xxxxxxxxxxxxx>
---
 tools/ioemu/xenstore.c |    8 ++------
 1 files changed, 2 insertions(+), 6 deletions(-)

diff -r 83ce6f4da212 -r 3b4de5f415c9 tools/ioemu/xenstore.c
--- a/tools/ioemu/xenstore.c    Thu Apr 05 15:47:03 2007 +0100
+++ b/tools/ioemu/xenstore.c    Thu Apr 05 18:12:21 2007 +0100
@@ -248,12 +248,8 @@ void xenstore_process_logdirty_event(voi
         key = (key_t) strtoull(key_terminated, NULL, 16);
 
         /* Figure out how bit the log-dirty bitmaps are */
-        logdirty_bitmap_size = ((phys_ram_size + 0x20 
-                                 - (vga_ram_size + bios_size)) 
-                                >> (TARGET_PAGE_BITS)); /* nr of bits in map*/
-        if (logdirty_bitmap_size > HVM_BELOW_4G_MMIO_START >> TARGET_PAGE_BITS)
-            logdirty_bitmap_size += 
-                HVM_BELOW_4G_MMIO_LENGTH >> TARGET_PAGE_BITS; /* still bits */
+        logdirty_bitmap_size = xc_memory_op(xc_handle, 
+                                            XENMEM_maximum_gpfn, &domid) + 1;
         logdirty_bitmap_size = ((logdirty_bitmap_size + HOST_LONG_BITS - 1)
                                 / HOST_LONG_BITS); /* longs */
         logdirty_bitmap_size *= sizeof (unsigned long); /* bytes */

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