On 5/1/2021 10:18 AM, Dmitry Kozlyuk wrote:
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
Acked-by: Ranjit Menon <ranjit.me...@intel.com>
