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

vdso
2026-03-17T03:34:42Z

> On 03/16/2026 5:12 AM Naman Jain <namjain@linux.microsoft.com> wrote:
>
>
> 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.

Hi Naman, Saurabh,

So awesome to see the ARM64 support for the VSM being upstreamed!!

Few of the patches carry my old Microsoft "Signed-off-by" tag,
and I really appreciate you folks very much kindly adding it
although the code appears to be a far more evolved and crisper
version of what it was back then!

Do feel free to drop my SOB from these few patches so the below SRB
doesn't look weird or as a conflict of interest - that is if you see
adding my below SRB to these few patches as a good option. It's been
2 years, and after 2 years who can really remember their code :D

For the series,
Reviewed-by: Roman Kisel <vdso@mailbox.org>

>
> Based on commit 1f318b96cc84 ("Linux 7.0-rc3")
>
> 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