[Qemu-devel] [RESEND PATCH for-1.5] acpi: add dummy write function for acpi timer

[Gerd Hoffmann]

Otherwise the guest can crash qemu (NULL pointer dereference).

https://bugzilla.redhat.com/show_bug.cgi?id=947691

Signed-off-by: Gerd Hoffmann <address@hidden>
---
 hw/acpi/core.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/acpi/core.c b/hw/acpi/core.c
index 64b8718..42eeace 100644
--- a/hw/acpi/core.c
+++ b/hw/acpi/core.c
@@ -462,8 +462,15 @@ static uint64_t acpi_pm_tmr_read(void *opaque, hwaddr 
addr, unsigned width)
     return acpi_pm_tmr_get(opaque);
 }
 
+static void acpi_pm_tmr_write(void *opaque, hwaddr addr, uint64_t val,
+                              unsigned width)
+{
+    /* nothing */
+}
+
 static const MemoryRegionOps acpi_pm_tmr_ops = {
     .read = acpi_pm_tmr_read,
+    .write = acpi_pm_tmr_write,
     .valid.min_access_size = 4,
     .valid.max_access_size = 4,
     .endianness = DEVICE_LITTLE_ENDIAN,
-- 
1.7.9.7