On 20/07/16 12:00, Adrian Hunter wrote: > June 2015 Intel SDM introduced IP Compression types 4 and 6. Refer section > 36.4.2.2 Target IP (TIP) Packet - IP Compression. > > Existing Intel PT packet decoder did not support type 4, and got type 6 > wrong. Because type 3 and type 4 have the same number of bytes, the packet > 'count' has been changed from being the number of ip bytes to being the > type code. That allows the Intel PT decoder to correctly decide whether to > sign-extend or use the last ip. However that also meant the code had to be > adjusted in a number of places. > > Currently hardware is not using the new compression types, so this fix has > no effect on existing hardware. > > Signed-off-by: Adrian Hunter <[email protected]> > --- > .../perf/util/intel-pt-decoder/intel-pt-decoder.c | 44 > +++++++++++----------- > .../util/intel-pt-decoder/intel-pt-pkt-decoder.c | 24 ++++++++---- > 2 files changed, 40 insertions(+), 28 deletions(-)
Hi This is outstanding but still applies. Regards Adrian
