linux-kernel - Re: [PATCH] mshv: Add support for a new parent partition configuration

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Message-ID: <0a0c8921-9236-45fb-b047-742a34379e63@linux.microsoft.com>
Date: Tue, 19 Aug 2025 09:17:27 -0700
From: Easwar Hariharan <easwar.hariharan@...ux.microsoft.com>
To: Nuno Das Neves <nunodasneves@...ux.microsoft.com>
Cc: easwar.hariharan@...ux.microsoft.com, linux-hyperv@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org, kys@...rosoft.com,
 haiyangz@...rosoft.com, wei.liu@...nel.org, mhklinux@...look.com,
 decui@...rosoft.com, arnd@...db.de
Subject: Re: [PATCH] mshv: Add support for a new parent partition
 configuration

On 8/19/2025 12:29 AM, Nuno Das Neves wrote:
> Detect booting as an "L1VH" partition. This is a new scenario very
> similar to root partition where the mshv_root driver can be used to
> create and manage guest partitions.
> 
> It mostly works the same as root partition, but there are some
> differences in how various features are handled. hv_l1vh_partition()
> is introduced to handle these cases. Add hv_parent_partition()
> which returns true for either case, replacing some hv_root_partition()
> checks.
> 
> Signed-off-by: Nuno Das Neves <nunodasneves@...ux.microsoft.com>

Seems the plurality of subject prefixes for drivers/hv files has been "Drivers: hv"
so far, including the 2 commits for drivers/hv/mshv*. Are you planning to change
the standard for mshv driver going forward?

It'd be good to have a small blurb about what an L1VH partition is in the commit
message, as well as what guides which hv_root_partition() call gets replaced with
hv_parent_partition().

<snip>

Thanks,
Easwar (he/him)