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>
39 lines
1.7 KiB
Diff
39 lines
1.7 KiB
Diff
From d82a3a47aabf392521caffc51a5f7fc380584229 Mon Sep 17 00:00:00 2001
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Message-Id: <d82a3a47aabf392521caffc51a5f7fc380584229.1522099418.git.Jim.Somerville@windriver.com>
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In-Reply-To: <37dfb62264baec527d56aaf20db887840bec1ea1.1522099415.git.Jim.Somerville@windriver.com>
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References: <37dfb62264baec527d56aaf20db887840bec1ea1.1522099415.git.Jim.Somerville@windriver.com>
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From: Alex Kozyrev <alex.kozyrev@windriver.com>
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Date: Fri, 21 Jul 2017 09:47:48 -0500
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Subject: [PATCH 19/32] Porting Cacheinfo from Kernel 4.10.17
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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SPECS/kernel.spec | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
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index f436d93..46e77bf 100644
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--- a/SPECS/kernel.spec
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+++ b/SPECS/kernel.spec
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@@ -435,6 +435,8 @@ Patch40013: Enable-building-kernel-with-CONFIG_BLK_DEV_NBD.patch
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Patch40014: x86-make-dma_alloc_coherent-return-zeroed-memory-if-.patch
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Patch40015: arch-x86-kernel-pci-dma.c-fix-dma_generic_alloc_cohe.patch
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Patch40016: rcu-Don-t-wake-rcuc-X-kthreads-on-NOCB-CPUs.patch
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+Patch40022: cacheinfo-porting-original-4.10.17-version.patch
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+Patch40023: cacheinfo-fixing-compilation-issues-on-3.10.patch
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BuildRoot: %{_tmppath}/kernel-%{KVRA}-root
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@@ -774,6 +776,8 @@ ApplyOptionalPatch Enable-building-kernel-with-CONFIG_BLK_DEV_NBD.patch
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ApplyOptionalPatch x86-make-dma_alloc_coherent-return-zeroed-memory-if-.patch
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ApplyOptionalPatch arch-x86-kernel-pci-dma.c-fix-dma_generic_alloc_cohe.patch
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ApplyOptionalPatch rcu-Don-t-wake-rcuc-X-kthreads-on-NOCB-CPUs.patch
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+ApplyOptionalPatch cacheinfo-porting-original-4.10.17-version.patch
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+ApplyOptionalPatch cacheinfo-fixing-compilation-issues-on-3.10.patch
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# Any further pre-build tree manipulations happen here.
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--
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1.8.3.1
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