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-rw-r--r--arch/arm64/kernel/mte.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm64/kernel/mte.c b/arch/arm64/kernel/mte.c
index 80b62fe49dcf..2cfc850809ce 100644
--- a/arch/arm64/kernel/mte.c
+++ b/arch/arm64/kernel/mte.c
@@ -25,6 +25,8 @@
u64 gcr_kernel_excl __ro_after_init;
+static bool report_fault_once = true;
+
static void mte_sync_page_tags(struct page *page, pte_t *ptep, bool check_swap)
{
pte_t old_pte = READ_ONCE(*ptep);
@@ -158,6 +160,16 @@ void mte_enable_kernel(void)
isb();
}
+void mte_set_report_once(bool state)
+{
+ WRITE_ONCE(report_fault_once, state);
+}
+
+bool mte_report_once(void)
+{
+ return READ_ONCE(report_fault_once);
+}
+
static void update_sctlr_el1_tcf0(u64 tcf0)
{
/* ISB required for the kernel uaccess routines */