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| /openbmc/qemu/hw/usb/ |
| H A D | hcd-ehci.c | 8a771f77 Tue Apr 03 07:21:47 CDT 2012 Hans de Goede <hdegoede@redhat.com> usb-ehci: Ensure frindex writes leave a valid frindex value
frindex is a 14 bits counter, so bits 31-14 should always be 0, and
after the commit titled "usb-ehci: frindex always is a 14 bits counter"
we rely on frindex always being a multiple of 8. I've not seen this in
practice, but theoretically a guest can write a value >= 0x4000 or a value
which is not a multiple of 8 value to frindex, this patch ensures that
things will still work when that happens.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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