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-rw-r--r--include/asm-x86/processor_64.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/processor_64.h b/include/asm-x86/processor_64.h
index 0780f3e3fdf..7b7f8a142e2 100644
--- a/include/asm-x86/processor_64.h
+++ b/include/asm-x86/processor_64.h
@@ -240,6 +240,9 @@ struct thread_struct {
unsigned io_bitmap_max;
/* MSR_IA32_DEBUGCTLMSR value to switch in if TIF_DEBUGCTLMSR is set. */
unsigned long debugctlmsr;
+/* Debug Store - if not 0 points to a DS Save Area configuration;
+ * goes into MSR_IA32_DS_AREA */
+ unsigned long ds_area_msr;
/* cached TLS descriptors. */
u64 tls_array[GDT_ENTRY_TLS_ENTRIES];
} __attribute__((aligned(16)));