[Skiboot] [PATCH] mambo: Add fw-feature flags for security related settings

Stewart Smith stewart at linux.vnet.ibm.com
Thu Mar 1 15:05:51 AEDT 2018

Michael Ellerman <mpe at ellerman.id.au> writes:
> Newer firmwares report some feature flags related to security
> settings via HDAT. On real hardware skiboot translates these into
> device tree properties. For testing purposes just create the
> properties manually in the tcl.
> These values don't exactly match any actual chip revision, but the
> code should not rely on any exact set of values anyway. We just define
> the most interesting flags, that if toggled to "disable" will change
> Linux behaviour. You can see the actual values in the hostboot source
> in src/usr/hdat/hdatiplparms.H.
> Also add an environment variable for easily toggling the top-level
> "security on" setting.
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
> ---
>  external/mambo/skiboot.tcl | 23 ++++++++++++++++++++++-
>  1 file changed, 22 insertions(+), 1 deletion(-)

Merged to master as of f30286c494312caa81333a077da58f501894c2bb

Stewart Smith
OPAL Architect, IBM.

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