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-rw-r--r--arch/x86/include/asm/trace/mpx.h16
-rw-r--r--arch/x86/mm/mpx.c1
2 files changed, 17 insertions, 0 deletions
diff --git a/arch/x86/include/asm/trace/mpx.h b/arch/x86/include/asm/trace/mpx.h
index c13c6fa3fa92..173dd3ba108c 100644
--- a/arch/x86/include/asm/trace/mpx.h
+++ b/arch/x86/include/asm/trace/mpx.h
@@ -95,6 +95,22 @@ DEFINE_EVENT(mpx_range_trace, mpx_unmap_search,
TP_ARGS(start, end)
);
+TRACE_EVENT(mpx_new_bounds_table,
+
+ TP_PROTO(unsigned long table_vaddr),
+ TP_ARGS(table_vaddr),
+
+ TP_STRUCT__entry(
+ __field(unsigned long, table_vaddr)
+ ),
+
+ TP_fast_assign(
+ __entry->table_vaddr = table_vaddr;
+ ),
+
+ TP_printk("table vaddr:%p", (void *)__entry->table_vaddr)
+);
+
#else
/*
diff --git a/arch/x86/mm/mpx.c b/arch/x86/mm/mpx.c
index 55729ee9263e..c17fd27579af 100644
--- a/arch/x86/mm/mpx.c
+++ b/arch/x86/mm/mpx.c
@@ -483,6 +483,7 @@ static int allocate_bt(long __user *bd_entry)
ret = -EINVAL;
goto out_unmap;
}
+ trace_mpx_new_bounds_table(bt_addr);
return 0;
out_unmap:
vm_munmap(bt_addr & MPX_BT_ADDR_MASK, MPX_BT_SIZE_BYTES);