On Mon, Mar 25, 2013 at 01:54:54PM -0500, Nathan Fontenot wrote:

The firmware_has_feature() function makes it easy to check for supported
features of the hypervisor. This patch extends the capability of the
firmware_has_feature() function to include checking for specified bits
in vector 5 of the architecture vector as is reported in the device tree.

As part of this the #defines used for the architecture vector are
moved to prom.h and re-defined such that the vector 5 options have the vector
index and the feature bits encoded into them. This makes for a much
simpler design to add bits from the architecture vector to be added to
the checking done in firmware_has_feature().

Signed-off-by: Nathan Fontenot <redacted>

Acked-by: Paul Mackerras <redacted>

The inner loop in fw_vec5_feature_init is perhaps a bit less efficient
than it could be, but I don't imagine it's going to take a noticeable
amount of time.

Paul.