From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-fw-33001.amazon.com (smtp-fw-33001.amazon.com [207.171.190.10]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A5291F6684; Tue, 15 Oct 2024 17:17:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=207.171.190.10 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729012628; cv=none; b=d99gffoazEVqCA3f/smzYaL/jtf+XsHznpSZLiebAaGTop841qOuIPTU13J3xssXEa70h/kWySrF3VLrR0UJwc7IT11vJckmqnrlwddbyPk8vplrjZLHNj+37cFrfFs3BN8MqSHB3/OyCfLZoN1DvZ4C+4ld170pmKLHWywTAUo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729012628; c=relaxed/simple; bh=3pgwbzfO+sAg7V1rNYJVaySR0aOfArSzvdBb+Bqtkfo=; h=Subject:MIME-Version:Content-Type:Date:Message-ID:CC:From:To: References:In-Reply-To; b=ESOs/LfJUZbEb/OAcR4S5BLwvKC7+FajiHWi2HlnQXPglNExmK1Yg4HGZP4ubn2pNs34+5A/jBTLAQz1foyzejgHymGEKH7LjEQLjfI9eLtVKhAZ25tOK+iOBxyR/czIT9oD6X/qEx3ptTxdNYs0sj1FRD2pzDijSdiGPjqcxxk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com; spf=pass smtp.mailfrom=amazon.es; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b=Cgh80CJV; arc=none smtp.client-ip=207.171.190.10 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=amazon.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=amazon.es Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=amazon.com header.i=@amazon.com header.b="Cgh80CJV" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amazon.com; i=@amazon.com; q=dns/txt; s=amazon201209; t=1729012627; x=1760548627; h=mime-version:content-transfer-encoding:date:message-id: cc:from:to:references:in-reply-to:subject; bh=eFf2pTbi8+kG2U/aqW1y4su0gyH9oAJZFLQq1g6nLzU=; b=Cgh80CJVv1W3kGvbMOStsmM61rJvzR2OxVvlQCuUqU+kVz8GrjqTB1lq RCDm5/oKLMX3uQCUS1BHzxQQ2if3weFt+ehFFHKbEufFQAVXVzjGbBc6Q h+qJtJgqRYxTrebmLGo7VaP7FC0mmv6rpRkCmc/z+b851Ql7h3DboThfK Y=; X-IronPort-AV: E=Sophos;i="6.11,205,1725321600"; d="scan'208";a="376377981" Subject: Re: [PATCH 2/7] KVM: x86: Implement Hyper-V's vCPU suspended state Received: from pdx4-co-svc-p1-lb2-vlan2.amazon.com (HELO smtpout.prod.us-east-1.prod.farcaster.email.amazon.dev) ([10.25.36.210]) by smtp-border-fw-33001.sea14.amazon.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 15 Oct 2024 17:17:00 +0000 Received: from EX19MTAEUB001.ant.amazon.com [10.0.10.100:25486] by smtpin.naws.eu-west-1.prod.farcaster.email.amazon.dev [10.0.15.145:2525] with esmtp (Farcaster) id 5697c476-574f-4f11-a9aa-5648d5545514; Tue, 15 Oct 2024 17:16:58 +0000 (UTC) X-Farcaster-Flow-ID: 5697c476-574f-4f11-a9aa-5648d5545514 Received: from EX19D004EUC001.ant.amazon.com (10.252.51.190) by EX19MTAEUB001.ant.amazon.com (10.252.51.26) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.34; Tue, 15 Oct 2024 17:16:57 +0000 Received: from localhost (10.13.235.138) by EX19D004EUC001.ant.amazon.com (10.252.51.190) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA) id 15.2.1258.34; Tue, 15 Oct 2024 17:16:53 +0000 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="UTF-8" Date: Tue, 15 Oct 2024 17:16:49 +0000 Message-ID: CC: Nikolas Wipper , Nikolas Wipper , Alexander Graf , James Gowans , , Paolo Bonzini , "Thomas Gleixner" , Ingo Molnar , "Borislav Petkov" , Dave Hansen , , , , , From: Nicolas Saenz Julienne To: Sean Christopherson , Vitaly Kuznetsov X-Mailer: aerc 0.18.2-67-g7f69618ac1fd-dirty References: <20241004140810.34231-1-nikwip@amazon.de> <20241004140810.34231-3-nikwip@amazon.de> <875xq0gws8.fsf@redhat.com> <9ef935db-459a-4738-ab9a-4bd08828cb60@gmx.de> <87h69dg4og.fsf@redhat.com> In-Reply-To: X-ClientProxiedBy: EX19D035UWA003.ant.amazon.com (10.13.139.86) To EX19D004EUC001.ant.amazon.com (10.252.51.190) Hi Sean, On Tue Oct 15, 2024 at 3:58 PM UTC, Sean Christopherson wrote: > Before we spend too much time cleaning things up, I want to first settle = on the > overall design, because it's not clear to me that punting HvTranslateVirt= ualAddress > to userspace is a net positive. We agreed that VTLs should be modeled pr= imarily > in userspace, but that doesn't automatically make punting everything to u= serspace > the best option, especially given the discussion at KVM Forum with respec= t to > mplementing VTLs, VMPLs, TD partitions, etc. Since you mention it, Paolo said he was going to prep a doc with an overview of the design we discussed there. Was it published? Did I miss it? Thanks, Nicolas