diff options
Diffstat (limited to 'arch/powerpc/mm/book3s64/pkeys.c')
| -rw-r--r-- | arch/powerpc/mm/book3s64/pkeys.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/mm/book3s64/pkeys.c b/arch/powerpc/mm/book3s64/pkeys.c index 792b36aa9619..69a6b87f2bb4 100644 --- a/arch/powerpc/mm/book3s64/pkeys.c +++ b/arch/powerpc/mm/book3s64/pkeys.c @@ -73,6 +73,12 @@ static int scan_pkey_feature(void) if (early_radix_enabled()) return 0; + /* + * Only P7 and above supports SPRN_AMR update with MSR[PR] = 1 + */ + if (!early_cpu_has_feature(CPU_FTR_ARCH_206)) + return 0; + ret = of_scan_flat_dt(dt_scan_storage_keys, &pkeys_total); if (ret == 0) { /* |