diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.9.21/0040-x86-speculation-Fix-typo-IBRS_ATT-which-should-be-IB.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.9.21/0040-x86-speculation-Fix-typo-IBRS_ATT-which-should-be-IB.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-x86-speculation-Fix-typo-IBRS_ATT-which-should-be-IB.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-x86-speculation-Fix-typo-IBRS_ATT-which-should-be-IB.patch new file mode 100644 index 00000000..4e57ccfc --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.9.21/0040-x86-speculation-Fix-typo-IBRS_ATT-which-should-be-IB.patch @@ -0,0 +1,41 @@ +From 95f8f24919bd97bf372f5edbf9a25d5d358c4596 Mon Sep 17 00:00:00 2001 +From: Darren Kenny <darren.kenny@oracle.com> +Date: Fri, 2 Feb 2018 19:12:20 +0000 +Subject: [PATCH 40/42] x86/speculation: Fix typo IBRS_ATT, which should be + IBRS_ALL + +(cherry picked from commit af189c95a371b59f493dbe0f50c0a09724868881) + +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 +Signed-off-by: David Woodhouse <dwmw@amazon.co.uk> +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + 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 df4ecec..300cc15 100644 +--- a/arch/x86/include/asm/nospec-branch.h ++++ b/arch/x86/include/asm/nospec-branch.h +@@ -150,7 +150,7 @@ 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) + { +-- +2.7.4 + |