tree 00ebb55bd093c5a4f247d74bfa16dbd4ab1ea192
parent 62ea67e31981bca95ec16c37e2a1fba68f3dd8c5
author Cédric Le Goater <clg@kaod.org> 1638377658 +0100
committer Michael Ellerman <mpe@ellerman.id.au> 1638402038 +1100

powerpc/xive: Fix compile when !CONFIG_PPC_POWERNV.

The automatic "save & restore" of interrupt context is a POWER10/XIVE2
feature exploited by KVM under the PowerNV platform. It is not
available under pSeries and the associated toggle should not be
exposed under the XIVE debugfs directory.

Introduce a platform handler for debugfs initialization and move the
'save-restore' entry under the native (PowerNV) backend to fix compile
when !CONFIG_PPC_POWERNV.

Fixes: 1e7684dc4fc7 ("powerpc/xive: Add a debugfs toggle for save-restore")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20211201165418.1041842-1-clg@kaod.org