[Xen-changelog] Implement cpu_physical_memory_reset_dirty()

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

# HG changeset patch
# User adsharma@xxxxxxxxxxxxxxxxxxxx
# Node ID 9c011dd3f6b7f38ba03de644018d366aa750cf4b
# Parent  20bbe519f743223a8ce2ae4ce17def7ac4f1f32e
Implement cpu_physical_memory_reset_dirty()

Signed-off-by: Don Dugger <donald.d.dugger@xxxxxxxxx>
Signed-off-by: Arun Sharma <arun.sharma@xxxxxxxxx>

diff -r 20bbe519f743 -r 9c011dd3f6b7 tools/ioemu/cpu-all.h
--- a/tools/ioemu/cpu-all.h     Mon Aug 22 18:04:15 2005
+++ b/tools/ioemu/cpu-all.h     Mon Aug 22 18:31:19 2005
@@ -672,6 +672,8 @@
 int cpu_memory_rw_debug(CPUState *env, target_ulong addr, 
                         uint8_t *buf, int len, int is_write);
 
+#define VGA_DIRTY_FLAG 0x01
+
 /* read dirty bit (return 0 or 1) */
 static inline int cpu_physical_memory_is_dirty(target_ulong addr)
 {
diff -r 20bbe519f743 -r 9c011dd3f6b7 tools/ioemu/exec.c
--- a/tools/ioemu/exec.c        Mon Aug 22 18:04:15 2005
+++ b/tools/ioemu/exec.c        Mon Aug 22 18:31:19 2005
@@ -461,4 +461,14 @@
 
 void cpu_physical_memory_reset_dirty(target_ulong start, target_ulong end)
 {
-}
+       uint8_t *p;
+       int len;
+
+       if ((len = (end - start)) <= 0)
+               return;
+       p = phys_ram_dirty + (start >> TARGET_PAGE_BITS);
+       len = len >> TARGET_PAGE_BITS;
+       while (len > 0)
+               p[--len] &= ~VGA_DIRTY_FLAG;
+       return;
+}
diff -r 20bbe519f743 -r 9c011dd3f6b7 tools/ioemu/hw/vga.c
--- a/tools/ioemu/hw/vga.c      Mon Aug 22 18:04:15 2005
+++ b/tools/ioemu/hw/vga.c      Mon Aug 22 18:31:19 2005
@@ -1620,7 +1620,6 @@
 static void vga_save(QEMUFile *f, void *opaque)
 {
     VGAState *s = opaque;
-    int i;
 
     qemu_put_be32s(f, &s->latch);
     qemu_put_8s(f, &s->sr_index);
@@ -1661,7 +1660,7 @@
 static int vga_load(QEMUFile *f, void *opaque, int version_id)
 {
     VGAState *s = opaque;
-    int is_vbe, i;
+    int is_vbe;
 
     if (version_id != 1)
         return -EINVAL;

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