@@ -276,6 +276,17 @@ void sun_m7_patch_2insn_range(struct sun4v_2insn_patch_entry *start,
}
}
+/*
+ * FIXME - TODO
+ *
+ * Shared MMU context support will only be provided on sun4v platforms
+ * with Niagara 2 or later processors. A patching mechanism for this
+ * this type of support will need to be implemented. For now, the code
+ * is making the too general assumption of supporting shared context on
+ * all sun4v platforms. This is a placeholder to add correct support
+ * at a later time.
+ */
+
static void __init sun4v_patch(void)
{
extern void sun4v_hvapi_init(void);
MMU shared context patching will be supported on Sun4V platforms with Niagara 2 or later processors. There will be a need for kernel patching based on this criteria. This 'patch' simply adds a comment as a reminder and placeholder to add that support. For now, MMU shared context support will be determined at follows: - sun4v patching will be used for shared context support. This is too general as most but not all sun4v platforms contain the required processors. - A new config option (CONFIG_SHARED_MMU_CTX) is added Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com> --- arch/sparc/kernel/setup_64.c | 11 +++++++++++ 1 file changed, 11 insertions(+)