commit 3ce10901ca8da9142dcdcde198fda1a4c290934c
author Paolo Bonzini <pbonzini@redhat.com> Tue Jul 02 13:40:48 2013 +0200
committer Paolo Bonzini <pbonzini@redhat.com> Thu Jul 04 17:42:45 2013 +0200
tree 1d2e886c106132afbdb9901db62062fbc525a5d7
parent 46637be269aaaceb9867ffdf176e906401138fff

memory: introduce memory_region_present

This new API will avoid having too many memory_region_ref/unref
in paths that currently use memory_region_find.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

hw/acpi/piix4.c

diff --git a/hw/acpi/piix4.c b/hw/acpi/piix4.c
index 3b95c69..10fc925 100644
--- a/hw/acpi/piix4.c
+++ b/hw/acpi/piix4.c
@@ -388,10 +388,10 @@
 
     pci_conf = s->dev.config;
     pci_conf[0x5f] = 0x10 |
-        (memory_region_find(io_as, 0x378, 1).mr ? 0x80 : 0);
+        (memory_region_present(io_as, 0x378) ? 0x80 : 0);
     pci_conf[0x63] = 0x60;
-    pci_conf[0x67] = (memory_region_find(io_as, 0x3f8, 1).mr ? 0x08 : 0) |
-        (memory_region_find(io_as, 0x2f8, 1).mr ? 0x90 : 0);
+    pci_conf[0x67] = (memory_region_present(io_as, 0x3f8) ? 0x08 : 0) |
+        (memory_region_present(io_as, 0x2f8) ? 0x90 : 0);
 }
 
 static int piix4_pm_initfn(PCIDevice *dev)