}
/*
- * If we are non-Power9 bare metal, we don't need to flush on kernel
- * entry or after user access: they fix a P9 specific vulnerability.
+ * The issues addressed by the entry and uaccess flush don't affect P7
+ * or P8, so on bare metal disable them explicitly in case firmware does
+ * not include the features to disable them. POWER9 and newer processors
+ * should have the appropriate firmware flags.
*/
- if (!pvr_version_is(PVR_POWER9)) {
+ if (pvr_version_is(PVR_POWER7) || pvr_version_is(PVR_POWER7p) ||
+ pvr_version_is(PVR_POWER8E) || pvr_version_is(PVR_POWER8NVL) ||
+ pvr_version_is(PVR_POWER8)) {
security_ftr_clear(SEC_FTR_L1D_FLUSH_ENTRY);
security_ftr_clear(SEC_FTR_L1D_FLUSH_UACCESS);
}
#endif
add_preferred_console("hvc", 0, NULL);
+#ifdef CONFIG_PPC_64S_HASH_MMU
if (!radix_enabled()) {
size_t size = sizeof(struct slb_entry) * mmu_slb_size;
int i;
cpu_to_node(i));
}
}
+#endif
}
static void __init pnv_init_IRQ(void)