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-rw-r--r--common/recipes-kernel/linux/linux-yocto-4.9.21/0078-x86-bugs-Rename-SSBD_NO-to-SSB_NO.patch48
1 files changed, 48 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.9.21/0078-x86-bugs-Rename-SSBD_NO-to-SSB_NO.patch b/common/recipes-kernel/linux/linux-yocto-4.9.21/0078-x86-bugs-Rename-SSBD_NO-to-SSB_NO.patch
new file mode 100644
index 00000000..f2131e66
--- /dev/null
+++ b/common/recipes-kernel/linux/linux-yocto-4.9.21/0078-x86-bugs-Rename-SSBD_NO-to-SSB_NO.patch
@@ -0,0 +1,48 @@
+From b5380d0ef78780a08140c0b4e8d050752e91104a Mon Sep 17 00:00:00 2001
+From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Date: Wed, 16 May 2018 23:18:09 -0400
+Subject: [PATCH 78/93] x86/bugs: Rename SSBD_NO to SSB_NO
+
+commit 240da953fcc6a9008c92fae5b1f727ee5ed167ab upstream
+
+The "336996 Speculative Execution Side Channel Mitigations" from
+May defines this as SSB_NO, hence lets sync-up.
+
+Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
+Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ arch/x86/include/asm/msr-index.h | 2 +-
+ arch/x86/kernel/cpu/common.c | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
+index ad5d0d8..ca41d8f 100644
+--- a/arch/x86/include/asm/msr-index.h
++++ b/arch/x86/include/asm/msr-index.h
+@@ -63,7 +63,7 @@
+ #define MSR_IA32_ARCH_CAPABILITIES 0x0000010a
+ #define ARCH_CAP_RDCL_NO (1 << 0) /* Not susceptible to Meltdown */
+ #define ARCH_CAP_IBRS_ALL (1 << 1) /* Enhanced IBRS support */
+-#define ARCH_CAP_SSBD_NO (1 << 4) /*
++#define ARCH_CAP_SSB_NO (1 << 4) /*
+ * Not susceptible to Speculative Store Bypass
+ * attack, so no Speculative Store Bypass
+ * control required.
+diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
+index 40fc748..b0fd028 100644
+--- a/arch/x86/kernel/cpu/common.c
++++ b/arch/x86/kernel/cpu/common.c
+@@ -926,7 +926,7 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
+ rdmsrl(MSR_IA32_ARCH_CAPABILITIES, ia32_cap);
+
+ if (!x86_match_cpu(cpu_no_spec_store_bypass) &&
+- !(ia32_cap & ARCH_CAP_SSBD_NO))
++ !(ia32_cap & ARCH_CAP_SSB_NO))
+ setup_force_cpu_bug(X86_BUG_SPEC_STORE_BYPASS);
+
+ if (x86_match_cpu(cpu_no_speculation))
+--
+2.7.4
+