From: Darren Kenny <darren.kenny@oracle.com>
Date: Fri, 2 Feb 2018 19:12:20 +0000 (+0000)
Subject: x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL
X-Git-Tag: v4.1.12-124.31.3~1148
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=407b0b9d0f4b1451d37aedbfd0cbe9789bf72e53;p=users%2Fjedix%2Flinux-maple.git

x86/speculation: Fix typo IBRS_ATT, which should be IBRS_ALL

Fixes: 117cc7a908c83 ("x86/retpoline: Fill return stack buffer on vmexit")
Signed-off-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tom Lendacky <thomas.lendacky@amd.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lkml.kernel.org/r/20180202191220.blvgkgutojecxr3b@starbug-vm.ie.oracle.com

(cherry picked from commit af189c95a371b59f493dbe0f50c0a09724868881)
Orabug: 27477743
CVE: CVE-2017-5715
Signed-off-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Reviewed-by: Pavel Tatashin <pasha.tatashin@oracle.com>
---

diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 0a77c74e3b0a..6ff030a734b8 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -179,7 +179,7 @@ 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)
 {