[Qemu-devel] [RFC PATCH 0/2] Update HMP only upon mac change completion.

[Vlad Yasevich]

Recent threads regarding e1000/rtl8139 and mac address change notifications
prompted some research into the respecitive hw data sheets as well as
available drivers.  What I found is that each hw has a mechanism that
can be used by our emulation layer to determine when the mac address
change has completed (when the OS finished writing the mac address),
and we can use these mechanisms to trigger HMP notifications.

This is only an RFC series.  It's been tested and works well.
I've split e1000 and rtl8139 changes as they are sufficiently
different.  e1000 make this very clean and easy, but rtl8139
isn't as nice.

Please take a look and I'd like to hear your comments.

Thanks
-vlad

Vlad Yasevich (2):
  e1000: Use Address_Available bit as HW latch
  rtl8139: update HMP only when the address is fully written

 hw/i386/pc_piix.c    |  4 ++++
 hw/i386/pc_q35.c     |  4 ++++
 hw/net/e1000.c       | 11 ++++++++++-
 hw/net/rtl8139.c     | 50 +++++++++++++++++++++++++++++++++++++++++++++++++-
 include/hw/i386/pc.h |  8 ++++++++
 5 files changed, 75 insertions(+), 2 deletions(-)

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1.8.4.2