!2762 Intel: backport SPR/EMR vt-d pcie upstream bug fix for 5.10

Merge Pull Request from: @etzhao 
 
Hi,
  This backport patch set includes Intel vt-d/PCIe critical bug fix for 5.10.

  Kernel issue:
  https://gitee.com/openeuler/intel-kernel/issues/I8C8B4

  Test:
 a. Kdump function test passed:
  crashkernel=1G-4G:192M,4G-64G:256M,64G-:512M intel_iommu=on, sm
  
  #echo 1 > /proc/sys/kernel/sysrq
  #echo c > /proc/sysrq-trigger

 b. DSA test passed.
 
  
 Kernel config:
 NA.

 Help to review and merge
 Thanks,
 Ethan

   
 
Link:https://gitee.com/openeuler/kernel/pulls/2762

 

Reviewed-by: Jason Zeng <jason.zeng@intel.com>
Reviewed-by: Aichun Shi <aichun.shi@intel.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>