[PATCH 12/21] Remove odd hack in vga.c

[Anthony Liguori <aliguori@xxxxxxxxxx>]

I looked closely at the vga code in kvm-userspace a while ago and merged
every fix I could understand into upstream QEMU.  This particular change makes
no sense to me.  I could not figure out from revision history what it actually
fixed.  I'm fairly certain it's not useful today.

Signed-off-by: Anthony Liguori <aliguori@xxxxxxxxxx>
---
 hw/vga.c |   27 ++++-----------------------
 1 files changed, 4 insertions(+), 23 deletions(-)

diff --git a/hw/vga.c b/hw/vga.c
index d96f1be..385184a 100644
--- a/hw/vga.c
+++ b/hw/vga.c
@@ -2227,33 +2227,14 @@ typedef struct PCIVGAState {
     VGAState vga_state;
 } PCIVGAState;
 
-static int s1, s2;
-
-static void mark_dirty(target_phys_addr_t start, target_phys_addr_t len)
-{
-    target_phys_addr_t end = start + len;
-
-    while (start < end) {
-        cpu_physical_memory_set_dirty(cpu_get_physical_page_desc(start));
-        start += TARGET_PAGE_SIZE;
-    }
-}
-
 void vga_dirty_log_start(VGAState *s)
 {
     if (kvm_enabled() && s->map_addr)
-        if (!s1) {
-            kvm_log_start(s->map_addr, s->map_end - s->map_addr);
-            mark_dirty(s->map_addr, s->map_end - s->map_addr);
-            s1 = 1;
-        }
+        kvm_log_start(s->map_addr, s->map_end - s->map_addr);
+
     if (kvm_enabled() && s->lfb_vram_mapped) {
-        if (!s2) {
-            kvm_log_start(isa_mem_base + 0xa0000, 0x8000);
-            kvm_log_start(isa_mem_base + 0xa8000, 0x8000);
-            mark_dirty(isa_mem_base + 0xa0000, 0x10000);
-        }
-        s2 = 1;
+        kvm_log_start(isa_mem_base + 0xa0000, 0x8000);
+        kvm_log_start(isa_mem_base + 0xa8000, 0x8000);
     }
 }
 
-- 
1.6.0.6

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