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-rw-r--r--xen/include/asm-x86/processor.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/xen/include/asm-x86/processor.h b/xen/include/asm-x86/processor.h
index df9f612e5f..9da4124c19 100644
--- a/xen/include/asm-x86/processor.h
+++ b/xen/include/asm-x86/processor.h
@@ -417,7 +417,9 @@ struct tss_struct {
union { u64 rsp1, esp1; };
union { u64 rsp2, esp2; };
u64 reserved1;
- u64 ist[7];
+ u64 ist[7]; /* Interrupt Stack Table is 1-based so tss->ist[0]
+ * corresponds to an IST value of 1 in an Interrupt
+ * Descriptor */
u64 reserved2;
u16 reserved3;
#else