[PATCH 00/11] Drivers: hv: Add ARM64 support in mshv_vtl

[Michael Kelley]

From: Naman Jain <namjain at linux.microsoft.com> Sent: Monday, March 16, 2026 5:13 AM
> 
> The series intends to add support for ARM64 to mshv_vtl driver.
> For this, common Hyper-V code is refactored, necessary support is added,
> mshv_vtl_main.c is refactored and then finally support is added in
> Kconfig.
> 
> Based on commit 1f318b96cc84 ("Linux 7.0-rc3")

There's now an online LLM-based tool that is automatically reviewing
kernel patches. For this patch set, the results are here:

https://sashiko.dev/#/patchset/20260316121241.910764-1-namjain%40linux.microsoft.com

It has flagged several things that are worth checking, but I haven't
reviewed them to see if they are actually valid.

FWIW, the announcement about sashiko.dev is here:

https://lore.kernel.org/lkml/7ia4o6kmpj5s.fsf@castle.c.googlers.com/

Michael

> 
> Naman Jain (11):
>   arch: arm64: Export arch_smp_send_reschedule for mshv_vtl module
>   Drivers: hv: Move hv_vp_assist_page to common files
>   Drivers: hv: Add support to setup percpu vmbus handler
>   Drivers: hv: Refactor mshv_vtl for ARM64 support to be added
>   drivers: hv: Export vmbus_interrupt for mshv_vtl module
>   Drivers: hv: Make sint vector architecture neutral in MSHV_VTL
>   arch: arm64: Add support for mshv_vtl_return_call
>   Drivers: hv: mshv_vtl: Move register page config to arch-specific
>     files
>   Drivers: hv: mshv_vtl: Let userspace do VSM configuration
>   Drivers: hv: Add support for arm64 in MSHV_VTL
>   Drivers: hv: Kconfig: Add ARM64 support for MSHV_VTL
> 
>  arch/arm64/hyperv/Makefile        |   1 +
>  arch/arm64/hyperv/hv_vtl.c        | 152 ++++++++++++++++++++++
>  arch/arm64/hyperv/mshyperv.c      |  13 ++
>  arch/arm64/include/asm/mshyperv.h |  28 ++++
>  arch/arm64/kernel/smp.c           |   1 +
>  arch/x86/hyperv/hv_init.c         |  88 +------------
>  arch/x86/hyperv/hv_vtl.c          | 130 +++++++++++++++++++
>  arch/x86/include/asm/mshyperv.h   |   8 +-
>  drivers/hv/Kconfig                |   2 +-
>  drivers/hv/hv_common.c            |  99 +++++++++++++++
>  drivers/hv/mshv.h                 |   8 --
>  drivers/hv/mshv_vtl_main.c        | 205 ++++--------------------------
>  drivers/hv/vmbus_drv.c            |   8 +-
>  include/asm-generic/mshyperv.h    |  49 +++++++
>  include/hyperv/hvgdk_mini.h       |   2 +
>  15 files changed, 505 insertions(+), 289 deletions(-)
>  create mode 100644 arch/arm64/hyperv/hv_vtl.c
> 
> 
> base-commit: 1f318b96cc84d7c2ab792fcc0bfd42a7ca890681
> prerequisite-patch-id: 24022ec1fb63bc20de8114eedf03c81bb1086e0e
> prerequisite-patch-id: 801f2588d5c6db4ceb9a6705a09e4649fab411b1
> prerequisite-patch-id: 581c834aa268f0c54120c6efbc1393fbd9893f49
> prerequisite-patch-id: b0b153807bab40860502c52e4a59297258ade0db
> prerequisite-patch-id: 2bff6accea80e7976c58d80d847cd33f260a3cb9
> prerequisite-patch-id: 296ffbc4f119a5b249bc9c840f84129f5c151139
> prerequisite-patch-id: 3b54d121145e743ac5184518df33a1812280ec96
> prerequisite-patch-id: 06fc5b37b23ee3f91a2c8c9b9c126fde290834f2
> prerequisite-patch-id: 6e8afed988309b03485f5538815ea29c8fa5b0a9
> prerequisite-patch-id: 4f1fb1b7e9cfa8a3b1c02fafecdbb432b74ee367
> prerequisite-patch-id: 49944347e0b2d93e72911a153979c567ebb7e66b
> prerequisite-patch-id: 6dec75498eeae6365d15ac12b5d0a3bd32e9f91c
> --
> 2.43.0
>