acpi: add dummy write function for acpi timer
Otherwise the guest can crash qemu (NULL pointer dereference). https://bugzilla.redhat.com/show_bug.cgi?id=947691 Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Message-id: 1368534544-11826-1-git-send-email-kraxel@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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@ -462,8 +462,15 @@ static uint64_t acpi_pm_tmr_read(void *opaque, hwaddr addr, unsigned width)
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return acpi_pm_tmr_get(opaque);
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}
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static void acpi_pm_tmr_write(void *opaque, hwaddr addr, uint64_t val,
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unsigned width)
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{
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/* nothing */
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}
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static const MemoryRegionOps acpi_pm_tmr_ops = {
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.read = acpi_pm_tmr_read,
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.write = acpi_pm_tmr_write,
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.valid.min_access_size = 4,
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.valid.max_access_size = 4,
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.endianness = DEVICE_LITTLE_ENDIAN,
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