diff options
Diffstat (limited to 'arch/powerpc/mm/pkeys.c')
-rw-r--r-- | arch/powerpc/mm/pkeys.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/arch/powerpc/mm/pkeys.c b/arch/powerpc/mm/pkeys.c new file mode 100644 index 000000000000..a11afba584b9 --- /dev/null +++ b/arch/powerpc/mm/pkeys.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * PowerPC Memory Protection Keys management + * + * Copyright 2017, Ram Pai, IBM Corporation. + */ + +#include <linux/pkeys.h> + +DEFINE_STATIC_KEY_TRUE(pkey_disabled); +bool pkey_execute_disable_supported; + +int pkey_initialize(void) +{ + /* + * Disable the pkey system till everything is in place. A subsequent + * patch will enable it. + */ + static_branch_enable(&pkey_disabled); + + /* + * Disable execute_disable support for now. A subsequent patch will + * enable it. + */ + pkey_execute_disable_supported = false; + return 0; +} + +arch_initcall(pkey_initialize); |