a745a5b6f8
Problem: Broken bios creates inaccurate DMAR tables, reporting some bridges as having endpoint types. This causes IOMMU initialization to bail out early with an error code, the result of which is vfio not working correctly. This is seen on some Skylake based Wolfpass server platforms with up-to-date bios installed. Solution: Instead of just bailing out of IOMMU initialization when such a condition is found, we report it and continue. The IOMMU ends up successfully initialized anyway. We do this only on platforms that have the Skylake bridges where this issue has been seen. This change is inspired by a similar one posted by Lu Baolu of Intel Corp to lkml https://lkml.org/lkml/2019/12/24/15 Change-Id: Ief2df7099b6118eab7f99d5531616926a7a3eb27 Closes-Bug: 1847335 Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
45 lines
1.9 KiB
Diff
45 lines
1.9 KiB
Diff
From 3073ab68b8a27cdaf31213778d029669f50e2632 Mon Sep 17 00:00:00 2001
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Message-Id: <3073ab68b8a27cdaf31213778d029669f50e2632.1584644494.git.Jim.Somerville@windriver.com>
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In-Reply-To: <55a6b125fab32183cbabee1e436197242f926c0c.1584644493.git.Jim.Somerville@windriver.com>
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References: <55a6b125fab32183cbabee1e436197242f926c0c.1584644493.git.Jim.Somerville@windriver.com>
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From: "zhao.shuai" <zhaos@neusoft.com>
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Date: Tue, 6 Aug 2019 16:18:04 +0800
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Subject: [PATCH 2/2] Compile issues
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Signed-off-by: zhao.shuai <zhaos@neusoft.com>
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Signed-off-by: Jim Somerville <Jim.Somerville@windriver.com>
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---
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SPECS/kernel.spec | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/SPECS/kernel.spec b/SPECS/kernel.spec
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index 5f23982..640f872 100644
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--- a/SPECS/kernel.spec
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+++ b/SPECS/kernel.spec
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@@ -498,6 +498,12 @@ Patch40029: rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
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Patch40030: rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
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# Workaround for broken bios causing IOMMU issues
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Patch40031: Allow-dmar-quirks-for-broken-bioses.patch
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+# Fix assorted compilation issues
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+Patch40100: fix-compilation-issues.patch
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+# Fix CentOS 7.6 upgrade compile error
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+Patch40101: fix-CentOS-7.6-upgrade-compile-error.patch
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+# Compile fix for disabling CONFIG_MEMCG_KMEM
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+Patch40102: compile-fix-for-disabling-CONFIG_MEMCG_KMEM.patch
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BuildRoot: %{_tmppath}/kernel-%{KVRA}-root
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@@ -882,6 +888,9 @@ ApplyOptionalPatch ipvs-fix-memory-leak-in-ip_vs_ctl.c.patch
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ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_acl_chmod.patch
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ApplyOptionalPatch rh-ext4-release-leaked-posix-acl-in-ext4_xattr_set_a.patch
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ApplyOptionalPatch Allow-dmar-quirks-for-broken-bioses.patch
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+ApplyOptionalPatch fix-compilation-issues.patch
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+ApplyOptionalPatch fix-CentOS-7.6-upgrade-compile-error.patch
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+ApplyOptionalPatch compile-fix-for-disabling-CONFIG_MEMCG_KMEM.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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