linux-kernel - [PATCH 0/5] iommu/arm-smmu-v3: make smmu can be enabled in kdump kernel

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Message-ID: <20190219075443.17732-1-thunder.leizhen@huawei.com>
Date:   Tue, 19 Feb 2019 15:54:38 +0800
From:   Zhen Lei <thunder.leizhen@...wei.com>
To:     Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        Robin Murphy <robin.murphy@....com>,
        Will Deacon <will.deacon@....com>,
        Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        iommu <iommu@...ts.linux-foundation.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
CC:     Zhen Lei <thunder.leizhen@...wei.com>
Subject: [PATCH 0/5] iommu/arm-smmu-v3: make smmu can be enabled in kdump kernel

This patch series include two parts:
1. Patch1-2 use dummy STE tables with "ste abort" hardware feature to abort unexpected
   devices accessing. For more details, see the description in patch 2.
2. If the "ste abort" feature is not support, force the unexpected devices in the
   secondary kernel to use the memory maps which it used in the first kernel. For more
   details, see patch 5.


Zhen Lei (5):
  iommu/arm-smmu-v3: make sure the stale caching of L1STD are invalid
  iommu/arm-smmu-v3: make smmu can be enabled in kdump kernel
  iommu/arm-smmu-v3: add macro xxx_SIZE to replace xxx_DWORDS shift
  iommu/arm-smmu-v3: move arm_smmu_get_step_for_sid() a little ahead
  iommu/arm-smmu-v3: workaround for STE abort in kdump kernel

 drivers/iommu/arm-smmu-v3.c | 243 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 194 insertions(+), 49 deletions(-)

-- 
1.8.3