From: Easwar Hariharan <eahariha@linux.microsoft.com>
To: Nuno Das Neves <nunodasneves@linux.microsoft.com>
Cc: linux-hyperv@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org,
iommu@lists.linux.dev, mhklinux@outlook.com,
eahariha@linux.microsoft.com, kys@microsoft.com,
haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com,
catalin.marinas@arm.com, will@kernel.org, tglx@linutronix.de,
mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com,
x86@kernel.org, hpa@zytor.com, daniel.lezcano@linaro.org,
joro@8bytes.org, robin.murphy@arm.com, arnd@arndb.de,
jinankjain@linux.microsoft.com, muminulrussell@gmail.com,
skinsburskii@linux.microsoft.com, mukeshrathor@microsoft.com
Subject: Re: [PATCH v2 3/3] hyperv: Add CONFIG_MSHV_ROOT to gate root partition support
Date: Thu, 20 Feb 2025 11:02:06 -0800 [thread overview]
Message-ID: <e85ddfef-2081-4c8a-96e6-e84a8410ff85@linux.microsoft.com> (raw)
In-Reply-To: <1740076396-15086-4-git-send-email-nunodasneves@linux.microsoft.com>
On 2/20/2025 10:33 AM, Nuno Das Neves wrote:
> CONFIG_MSHV_ROOT allows kernels built to run as a normal Hyper-V guest
> to exclude the root partition code, which is expected to grow
> significantly over time.
>
> This option is a tristate so future driver code can be built as a
> (m)odule, allowing faster development iteration cycles.
>
> If CONFIG_MSHV_ROOT is disabled, don't compile hv_proc.c, and stub
> hv_root_partition() to return false unconditionally. This allows the
> compiler to optimize away root partition code blocks since they will
> be disabled at compile time.
>
> Signed-off-by: Nuno Das Neves <nunodasneves@linux.microsoft.com>
> ---
> drivers/hv/Kconfig | 16 ++++++++++++++++
> drivers/hv/Makefile | 3 ++-
> include/asm-generic/mshyperv.h | 24 ++++++++++++++++++++----
> 3 files changed, 38 insertions(+), 5 deletions(-)
Looks good to me.
Reviewed-by: Easwar Hariharan <eahariha@linux.microsoft.com>
next prev parent reply other threads:[~2025-02-20 19:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-20 18:33 [PATCH v2 0/3] Introduce CONFIG_MSHV_ROOT for root partition code Nuno Das Neves
2025-02-20 18:33 ` [PATCH v2 1/3] hyperv: Convert hypercall statuses to linux error codes Nuno Das Neves
2025-02-20 18:49 ` Easwar Hariharan
2025-02-20 21:59 ` Nuno Das Neves
2025-02-20 19:03 ` Michael Kelley
2025-02-20 21:58 ` Nuno Das Neves
2025-02-20 18:33 ` [PATCH v2 2/3] hyperv: Change hv_root_partition into a function Nuno Das Neves
2025-02-20 18:56 ` Easwar Hariharan
2025-02-20 19:08 ` Michael Kelley
2025-02-20 19:17 ` Michael Kelley
2025-02-20 21:57 ` Nuno Das Neves
2025-02-20 21:59 ` MUKESH RATHOR
2025-02-20 22:56 ` Easwar Hariharan
2025-02-20 22:59 ` MUKESH RATHOR
2025-02-21 18:10 ` Nuno Das Neves
2025-02-21 18:38 ` Easwar Hariharan
2025-02-21 18:47 ` MUKESH RATHOR
2025-02-20 18:33 ` [PATCH v2 3/3] hyperv: Add CONFIG_MSHV_ROOT to gate root partition support Nuno Das Neves
2025-02-20 19:02 ` Easwar Hariharan [this message]
2025-02-20 19:22 ` Michael Kelley
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