Re: [PATCH 1/4] mshv: Add nested virtualization creation flag

[Easwar Hariharan <easwar.hariharan@linux.microsoft.com>]

On 2/18/2026 6:47 AM, Anatol Belski wrote:
> From: Muminul Islam <muislam@microsoft.com>
> 
> Introduce HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE to
> indicate support for nested virtualization during partition creation.
> 
> This enables clearer configuration and capability checks for nested
> virtualization scenarios.
> 
> Signed-off-by: Stanislav Kinsburskii <skinsburskii@linux.microsoft.com>
> Signed-off-by: Muminul Islam <muislam@microsoft.com>
> ---
>  include/hyperv/hvhdk.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/include/hyperv/hvhdk.h b/include/hyperv/hvhdk.h
> index 08965970c17d..03afb7d0412b 100644
> --- a/include/hyperv/hvhdk.h
> +++ b/include/hyperv/hvhdk.h
> @@ -328,6 +328,7 @@ union hv_partition_isolation_properties {
>  #define HV_PARTITION_ISOLATION_HOST_TYPE_RESERVED   0x2
>  
>  /* Note: Exo partition is enabled by default */
> +#define HV_PARTITION_CREATION_FLAG_NESTED_VIRTUALIZATION_CAPABLE	BIT(1)
>  #define HV_PARTITION_CREATION_FLAG_GPA_SUPER_PAGES_ENABLED		BIT(4)
>  #define HV_PARTITION_CREATION_FLAG_EXO_PARTITION			BIT(8)
>  #define HV_PARTITION_CREATION_FLAG_LAPIC_ENABLED			BIT(13)

Patches 1, 2, and 3 can all be squashed into 1 patch.

Thanks,
Easwar (he/him)