From deb809edb85334c8e90530e1071b98f4da25ebaa Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Tue, 14 Jul 2015 13:56:53 +0200
Subject: memory: count number of active VGA logging clients

For a board that has multiple framebuffer devices, both of them
might want to use DIRTY_MEMORY_VGA on the same memory region.
The lack of reference counting in memory_region_set_log makes
this very awkward to implement.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 include/exec/memory.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include/exec/memory.h')

diff --git a/include/exec/memory.h b/include/exec/memory.h
index 139471500f..94d20eae05 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -180,6 +180,7 @@ struct MemoryRegion {
     bool warning_printed; /* For reservations */
     bool flush_coalesced_mmio;
     bool global_locking;
+    uint8_t vga_logging_count;
     MemoryRegion *alias;
     hwaddr alias_offset;
     int32_t priority;
-- 
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