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X-CSE-ConnectionGUID: bty1LfafSZ2QdZ4inFCT8w== X-CSE-MsgGUID: TcRsp0Y8TMuxJQMEV87oXA== X-IronPort-AV: E=McAfee;i="6800,10657,11860"; a="97595072" X-IronPort-AV: E=Sophos;i="6.25,195,1779174000"; d="scan'208";a="97595072" Received: from orviesa009.jf.intel.com ([10.64.159.149]) by orvoesa104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jul 2026 15:45:41 -0700 X-CSE-ConnectionGUID: 6ZTjABJzSHq0KANKjrAkXA== X-CSE-MsgGUID: 86YRcKkZQKSSqCijGiWMPQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,195,1779174000"; d="scan'208";a="261034198" Received: from sghuge-mobl2.amr.corp.intel.com (HELO [10.125.111.236]) ([10.125.111.236]) by orviesa009-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 30 Jul 2026 15:45:39 -0700 Message-ID: Date: Thu, 30 Jul 2026 15:45:38 -0700 Precedence: bulk X-Mailing-List: linux-hyperv@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RESEND PATCH 0/6] Remove support for Windows Server 2012/2012R2 & Win8/Win8.1 versions of Hyper-V To: mhklinux@outlook.com, kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, longli@microsoft.com, tglx@kernel.org, mingo@redhat.com, bp@alien8.de, dave.hansen@linux.intel.com, hpa@zytor.com, daniel.lezcano@kernel.org, ssengar@linux.microsoft.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, James.Bottomley@HansenPartnership.com, martin.petersen@oracle.com, sgarzare@redhat.com, horms@kernel.org Cc: x86@kernel.org, linux-hyperv@vger.kernel.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, netdev@vger.kernel.org, linux-scsi@vger.kernel.org, virtualization@lists.linux.dev References: <20260730201123.1767-1-mhklinux@outlook.com> From: Dave Hansen Content-Language: en-US Autocrypt: addr=dave.hansen@intel.com; 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charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/30/26 13:11, Michael Kelley wrote: > Linux code for running as a Hyper-V guest includes special cases for > running on Hyper-V in WS2012/2012R2 and Windows 8/8.1. These versions > were initially released 14 years ago, and official support ended in 2023 > (unless a customer has contracted for extended security updates). If we had a time machine, it would be nice to go back to 2023, stick some warnings in about this, and see if anyone screams. Could we add some warnings the next time a Hyper-V host ends support, please? Also, what will an end user actually see if they boot a kernel with this series applied on one of those hypervisors? Will it just not boot? Will it run slowly?