tree 8af6ff63d0cf4b3fa2fbaf1bbd6ef0481b4c073f
parent a69e2fb70350a66f91175cd2625f1e8215c5b6e9
author Suraj Jitindar Singh <sjitindarsingh@gmail.com> 1488261827 +1100
committer Michael Ellerman <mpe@ellerman.id.au> 1488797048 +1100

powerpc: Parse the command line before calling CAS

On POWER9 the hypervisor requires the guest to decide whether it would
like to use a hash or radix mmu model at the time it calls
ibm,client-architecture-support (CAS) based on what the hypervisor has
said it's allowed to do. It is possible to disable radix by passing
"disable_radix" on the command line. The next patch will add support for
the new CAS format, thus we need to parse the command line before calling
CAS so we can correctly select which mmu we would like to use.

Signed-off-by: Suraj Jitindar Singh <sjitindarsingh@gmail.com>
Reviewed-by: Paul Mackerras <paulus@ozlabs.org>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>