50a9ff6df4
The kernel is moved ahead to version 3.10.0-693.21.1.el7 To summarize: CVE-2017-5753 [bounds check bypass] aka 'Spectre Variant 1' This is fixed by load fences and is "baked in" and cannot be turned off. CVE-2017-5715 [branch target injection] aka 'Spectre Variant 2' This is fixed by a combination of retpolines and IBPB, or IBRS+IBPB if on skylake. This requires a microcode change in the processors. This feature, if on, has a significant performance impact. It is assumed on unless turned off via the "nospectre_v2" bootarg. CVE-2017-5754 [rogue data cache load] aka 'Meltdown' aka 'Variant 3' This is fixed by page table isolation using the Kaiser patches. This feature is assumed on unless turned off via the "nopti" bootarg. As of the commit date, we have changed the installer kickstarts to issue both "nopti nospectre_v2" bootargs to minimize realtime impacts by default. The customer will be able to optionally sacrifice performance for extra security at datafill time. Change-Id: Id7c99923f2ee2ee91f77c7bd9940e684eff8b476 Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
30 lines
1.0 KiB
Diff
30 lines
1.0 KiB
Diff
From a258113edc7bffd2bc66cbdfda05c980f7a86b7e Mon Sep 17 00:00:00 2001
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Message-Id: <a258113edc7bffd2bc66cbdfda05c980f7a86b7e.1522795097.git.Jim.Somerville@windriver.com>
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In-Reply-To: <21c11de06542297206c798b405b54a3ec9052aa4.1522795097.git.Jim.Somerville@windriver.com>
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References: <21c11de06542297206c798b405b54a3ec9052aa4.1522795097.git.Jim.Somerville@windriver.com>
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From: Jim Somerville <Jim.Somerville@windriver.com>
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Date: Tue, 3 Apr 2018 18:07:37 -0400
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Subject: [PATCH 03/33] debrand rh i686 cpu
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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arch/x86/boot/main.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
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index 0d12b19..99dcb04 100644
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--- a/arch/x86/boot/main.c
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+++ b/arch/x86/boot/main.c
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@@ -147,7 +147,7 @@ void main(void)
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/* Make sure we have all the proper CPU support */
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if (validate_cpu()) {
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- puts("This processor is unsupported in RHEL7.\n");
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+ puts("This processor is unsupported in CentOS 7.\n");
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die();
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}
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--
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1.8.3.1
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