On 5/12/2025 7:42 PM, Saurabh Singh Sengar wrote:
Provide an interface for Virtual Machine Monitor like OpenVMM and its use as OpenHCL paravisor to control VTL0 (Virtual trust Level). Expose devices and support IOCTLs for features like VTL creation, VTL0 memory management, context switch, making hypercalls, mapping VTL0 address space to VTL2 userspace, getting new VMBus messages and channel events in VTL2 etc. Co-developed-by: Roman Kisel <rom...@linux.microsoft.com> Signed-off-by: Roman Kisel <rom...@linux.microsoft.com> Co-developed-by: Saurabh Sengar <ssen...@linux.microsoft.com> Signed-off-by: Saurabh Sengar <ssen...@linux.microsoft.com> Reviewed-by: Roman Kisel <rom...@linux.microsoft.com> Signed-off-by: Naman Jain <namj...@linux.microsoft.com> --- drivers/hv/Kconfig | 21 + drivers/hv/Makefile | 7 +- drivers/hv/mshv_vtl.h | 52 + drivers/hv/mshv_vtl_main.c | 1783 +++++++++++++++++++++++++++++++++++ include/hyperv/hvgdk_mini.h | 81 ++ include/hyperv/hvhdk.h | 1 + include/uapi/linux/mshv.h | 82 ++ 7 files changed, 2026 insertions(+), 1 deletion(-) create mode 100644 drivers/hv/mshv_vtl.h create mode 100644 drivers/hv/mshv_vtl_main.c diff --git a/drivers/hv/Kconfig b/drivers/hv/Kconfig index eefa0b559b73..05f990306d40 100644 --- a/drivers/hv/Kconfig +++ b/drivers/hv/Kconfig @@ -72,4 +72,25 @@ config MSHV_ROOT If unsure, say N. +config MSHV_VTL + tristate "Microsoft Hyper-V VTL driver" + depends on HYPERV && X86_64 + depends on TRANSPARENT_HUGEPAGE + depends on OFI am aware that OpenHCL works only with DeviceTree and hence we have to
yes, that was the reason for keeping it.
enable CONFIG_OF, but I am not aware of any dependency in this driver, why we need to enable CONFIG_OF by this driver. We can always enable CONFIG_OF separately in OpenHCL kernel configs. Please check. - Saurabh
But this is right, I'll remove it. Just FYI, rest of the configs and header files are required for it to compile. Regards, Naman
