[dpdk-dev] [kmods PATCH 0/3] windows/virt2phys: fix paging issue

[Dmitry Kozlyuk]

Physical addresses exposed by virt2phys driver could become pageable.
This presents stability and security issues that prevent Microsoft
from signing virt2phys, because a signed driver would be trusted
by all end-user machines.

Ensure that memory for which physical addresses are exposed by
virt2phys is non-pageable at least for the lifetime of the process.
As virt2phys code grows, make its development and debugging easier.

There are other known issues that come from using PA and accessing DMA
from userspace. They are not related to virt2phys par se. It is planned
to address them later by enabling the use of IOMMU for DPDK on Windows.

Dmitry Kozlyuk (3):
  windows/virt2phys: use local time for signing
  windows/virt2phys: do not expose pageable physical addresses
  windows/virt2phys: add tracing

 windows/virt2phys/virt2phys.c               |  89 ++++--
 windows/virt2phys/virt2phys.vcxproj         |   8 +-
 windows/virt2phys/virt2phys.vcxproj.filters |  11 +-
 windows/virt2phys/virt2phys_logic.c         | 312 ++++++++++++++++++++
 windows/virt2phys/virt2phys_logic.h         |  32 ++
 windows/virt2phys/virt2phys_trace.h         |  49 +++
 6 files changed, 472 insertions(+), 29 deletions(-)
 create mode 100644 windows/virt2phys/virt2phys_logic.c
 create mode 100644 windows/virt2phys/virt2phys_logic.h
 create mode 100644 windows/virt2phys/virt2phys_trace.h

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2.29.3