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Subject[PATCH v2] Correct use of IBRS_ATT name, should be IBRS_ALL
Fixes a comment in commit 117cc7a908c83697b0b737d15ae1eb5943afe35b
("x86/retpoline: Fill return stack buffer on vmexit")

While the original name was "IBRS All The Time" (IBRS_ATT),
the publicly documented name is IBRS_ALL, we should be using that.

Signed-off-by: Darren Kenny <>
Reviewed-by: Konrad Rzeszutek Wilk <>
Acked-by: David Woodhouse <>
arch/x86/include/asm/nospec-branch.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 4ad4108..5b778d2 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -201,7 +201,7 @@ extern char __indirect_thunk_end[];
* On VMEXIT we must ensure that no RSB predictions learned in the guest
* can be followed in the host, by overwriting the RSB completely. Both
* retpoline and IBRS mitigations for Spectre v2 need this; only on future
- * CPUs with IBRS_ATT *might* it be avoided.
+ * CPUs with IBRS_ALL *might* it be avoided.
static inline void vmexit_fill_RSB(void)
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