From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 1F31A1E98F3; Fri, 18 Jul 2025 20:25:28 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752870330; cv=none; b=ikonoS593H02WKfSfhbwHF5gsKBBMAchfLP6A/J2/tYP1QTPMkg59URpdejYOT8sPEKeRNKhjLkqpheyWQo35yDYoQljtiP3ByIJj7JvkAgo5RWNf7oQ0Ciy+ea9NvOvqhF80RqcMhpBXjBp9hDhkn+b/1G+WJ9VGJTmJYZbYuE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1752870330; c=relaxed/simple; bh=/LuV1kI0Iyd+FCiRuNAtsdvbp0nKZH03Cc+yGiEhT7o=; h=Message-ID:Date:MIME-Version:Cc:Subject:To:References:From: In-Reply-To:Content-Type; b=KgyZdJR1V4VJV5ug7ZdaxhVNpZaEXvNqpfGhW4iMLM4wL3UG9K2eZcHHn5VdS+aaqS2oOkl1WW6Jztxa47GXayNmvSotHpytkNqJoivEW7RxYIMgfoGtp9B9D6XU3x1remmMKYku/RdxaxGYM77Ow235D8ZPfSLZImftFpBF4Rw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=GwlPHPU6; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="GwlPHPU6" Received: from [100.64.208.217] (unknown [52.148.140.42]) by linux.microsoft.com (Postfix) with ESMTPSA id 2570C211FECC; Fri, 18 Jul 2025 13:25:28 -0700 (PDT) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 2570C211FECC DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1752870328; bh=K/40819+E+k+K58haOlYWaAdi71u2Yjg3RszMLQnf+k=; h=Date:Cc:Subject:To:References:From:In-Reply-To:From; b=GwlPHPU6r/9jOGjP2StGyvwqILNLzFMl0UpAGDze2sULGhbFA6StheBjyTafNgAVm muArOCcrTyP5+qiCwniNL9GZlpVuUP/lVHdBJF1vWpcNnXM+bT6e/ZhFqV79H4yRY5 18ipulGp/ZNioluseGtaYCShh8MsmJqYe4yUWLJE= Message-ID: <43f8be57-a330-455f-8f9e-f5718ff1aa1a@linux.microsoft.com> Date: Fri, 18 Jul 2025 13:25:27 -0700 Precedence: bulk X-Mailing-List: linux-arch@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Cc: eahariha@linux.microsoft.com, "kys@microsoft.com" , "haiyangz@microsoft.com" , "wei.liu@kernel.org" , "decui@microsoft.com" , "tglx@linutronix.de" , "mingo@redhat.com" , "bp@alien8.de" , "dave.hansen@linux.intel.com" , "hpa@zytor.com" , "lpieralisi@kernel.org" , "kw@linux.com" , "mani@kernel.org" , "robh@kernel.org" , "bhelgaas@google.com" , "arnd@arndb.de" , "x86@kernel.org" , "linux-hyperv@vger.kernel.org" , "linux-kernel@vger.kernel.org" , "linux-pci@vger.kernel.org" , "linux-arch@vger.kernel.org" Subject: Re: [PATCH v4 0/7] hyperv: Introduce new way to manage hypercall args To: Michael Kelley , Nuno Das Neves , Naman Jain , Roman Kisel References: <20250718045545.517620-1-mhklinux@outlook.com> From: Easwar Hariharan Content-Language: en-US In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 7/18/2025 10:13 AM, Michael Kelley wrote: > From: Easwar Hariharan Sent: Friday, July 18, 2025 9:33 AM >> >> On 7/17/2025 9:55 PM, mhkelley58@gmail.com wrote: >>> From: Michael Kelley >>> > > [snip] > >>> >>> The new code compiles and runs successfully on x86 and arm64. However, >>> basic smoke tests cover only a limited number of hypercall call sites >>> that have been modified. I don't have the hardware or Hyper-V >>> configurations needed to test running in the Hyper-V root partition >>> or running in a VTL other than VTL 0. The related hypercall call sites >>> still need to be tested to make sure I didn't break anything. Hopefully >>> someone with the necessary configurations and Hyper-V versions can >>> help with that testing. > > Easwar -- > > Thanks for reviewing. > > Any chance you (or someone else) could do a quick smoke test of this > patch set when running in the Hyper-V root partition, and separately, > when running in VTL2? Some hypercall call sites are modified that > don't get called in normal VTL0 execution. It just needs a quick > verification that nothing is obviously broken for the root partition and > VTL2 cases. > > Michael > I'm working almost entirely in VTL0, so I'd call on Nuno, Naman, and Roman (cc'ed) to help. - Easwar