[Qemu-devel] [PULL for-2.0 1/2] acpi: fix incorrect encoding for 0x{F-1}FFFF

[Michael S. Tsirkin]

From: Igor Mammedov <address@hidden>

Fix typo in build_append_int() which causes integer
truncation when it's in range 0x{F-1}FFFF by packing it
as WordConst instead of required DWordConst.

In partucular this fixes a regression: hotplug in slots 16,17,18 and 19
didn't work, since SSDT had code like this:

                If (And (Arg0, 0x0000))
                {
                    Notify (S80, Arg1)
                }

Signed-off-by: Igor Mammedov <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
Reviewed-by: Stefan Weil <address@hidden>
---
 hw/i386/acpi-build.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/acpi-build.c b/hw/i386/acpi-build.c
index a5d3fbf..c98df88 100644
--- a/hw/i386/acpi-build.c
+++ b/hw/i386/acpi-build.c
@@ -391,7 +391,7 @@ static void build_append_int(GArray *table, uint32_t value)
         build_append_byte(table, 0x01); /* OneOp */
     } else if (value <= 0xFF) {
         build_append_value(table, value, 1);
-    } else if (value <= 0xFFFFF) {
+    } else if (value <= 0xFFFF) {
         build_append_value(table, value, 2);
     } else {
         build_append_value(table, value, 4);
-- 
MST