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

Message

Leizhen (ThunderTown) Feb. 19, 2019, 7:54 a.m. UTC

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(-)

Comments

Leizhen (ThunderTown) Feb. 27, 2019, 3:25 a.m. UTC | #1

Hi Will, Robin:
   Do you have time to review these patches? Hope you can give me some opinions.


On 2019/2/19 15:54, Zhen Lei wrote:
> 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(-)
>