Re: [PATCH v3 0/2] Add support for clean shutdown with MSHV

Praveen K Paladugu
2025-10-27T21:11:15Z

On 10/27/2025 3:56 PM, Easwar Hariharan wrote:
> On 10/27/2025 1:28 PM, Praveen K Paladugu wrote:
>> Add support for clean shutdown of the root partition when running on MSHV
>> hypervisor.
>>
>> v3:
>> - Dropped acpi_sleep handlers as they are not used on mshv
>> - Applied ordering for hv_reboot_notifier
>> - Fixed build issues on i386, arm64 architectures
>>
>> v2:
>> - Addressed review comments from v1.
>> - Moved all sleep state handling methods under CONFIG_ACPI stub
>> - - This fixes build issues on non-x86 architectures.
>>
>> Praveen K Paladugu (2):
>> hyperv: Add definitions for MSHV sleep state configuration
>> hyperv: Enable clean shutdown for root partition with MSHV
>>
>> arch/x86/hyperv/hv_init.c | 8 +++
>> arch/x86/include/asm/mshyperv.h | 2 +
>> drivers/hv/mshv_common.c | 103 ++++++++++++++++++++++++++++++++
>> include/hyperv/hvgdk_mini.h | 4 +-
>> include/hyperv/hvhdk_mini.h | 33 ++++++++++
>> 5 files changed, 149 insertions(+), 1 deletion(-)
>>
>
> This series seems to assume that Mukesh's hypervisor crash series has been merged, but that's not the case.
> I don't see any code context or logical dependency on that series, but correct me if I'm wrong. If there's no
> dependency, can you send a v4 based on Linus' tree or hyperv-next to avoid a merge conflict?
>

I rebased this patchset on top of hyperv/hyperv-next branch, which has
crashdump patches:
https://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux.git/log/?h=hyperv-next

Let me know if I missed/misunderstood anything.

> Thanks,
> Easwar (he/him)