[PATCH v2 0/2] Add support for clean shutdown with MSHV

Praveen K Paladugu
2025-10-14T16:42:00Z

Add support for clean shutdown of the root partition when running on MSHV
hypervisor.

v2:
- Addressed review comments from v1.
- Moved all sleep state handling methods under CONFIG_ACPI stub
- - This fixes build issues on non-x86 architectures.

Moving the declartion of `hv_sleep_notifiers_register` to
arch/x86/include/asm/mshyperv.h, required the use of CONFIG_X86 stub
within hv_common.c. As this sleep configuration is dependent on ACPI,
I moved all the methods under CONFIG_ACPI to keep the code cleaner,
without introducing CONFIG_X86 stub.

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 | 7 ++
arch/x86/include/asm/mshyperv.h | 1 +
drivers/hv/hv_common.c | 119 ++++++++++++++++++++++++++++++++
include/hyperv/hvgdk_mini.h | 4 +-
include/hyperv/hvhdk_mini.h | 33 +++++++++
5 files changed, 163 insertions(+), 1 deletion(-)

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2.51.0