From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 136BC199385; Tue, 28 Jan 2025 09:43:14 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738057396; cv=none; b=EvAo5ytMCQiwAKz4CIJeDHqnsl4/RO0pkuTDN1lY4oLCn2QOxtDHNPe6HvvfLBk6NWzyDqxJvzppOjnZD1utbsx67PNVwkogUlB+/dy/k1OdUIizefeINDcxUCA3xzkEWA444eSI8ZN+kfq97SlOQT/PJwsagHZbnnI/fwVZv40= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1738057396; c=relaxed/simple; bh=nhxX+KKjyAmhuZqSaSiq//fR1W9bmmcoErKE363JeZg=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=Z/KHclpGReAFcYKBZGCZiHiG0xaaEguTW7LXoHUV0/D34KzSxgT2A/ybXW7SVDRjkXAgwYoFTgLrn+J+IwBdRwbTEbDAUFJr4WHe/5aWoob4m1SRRCZKYixVLvA0yFJT0loZ56jkKVQ/Kecz7P1X5ObihhfAydw+Vtl7BoRhvl4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=gSmlINAv; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="gSmlINAv" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:Sender :Reply-To:Content-ID:Content-Description; bh=qiUVswsB3yTR4MT5Ln5A5p1vDg9ssqYWDaSK0rRPwXk=; b=gSmlINAvpXUPukFxeLE2Smgyak cvlBY3CRasQpvgwPWahNX2d8MPFy0mh7kQMPXvjGb8fADnPVzvID69/8xGJwpCx1mmQ+JnwnBT6vX qf5auJplfdAqa/IwrSw7c1o8W2Sm8qRR/XQc1/GLZgKAXa8ULXOXXPeItnv60Sj19Dm2Aa1i7NKGc RDDHQ2qeDWYWZKSGDuSVc88Q5QgQpt6LX9jvuVFioRYO8g86DjyKEjYwode7ri43JCKCV5PW8IkqO X/Arn50qNq+SSfLasPQR650XLG1/+fMeK5IEt10BasynsWapN5MWgfjAaZULelpjTp0YvbhIVCC/B 10vqmnLA==; Received: from [138.199.18.130] (helo=[172.31.28.190]) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tci7X-0000000ARyH-2y9k; Tue, 28 Jan 2025 09:42:59 +0000 Message-ID: <83d44307f30ad8ce19de3edcdc00c179750e0e23.camel@infradead.org> Subject: Re: [RFC PATCH 00/39] 1G page support for guest_memfd From: Amit Shah To: Ackerley Tng , tabba@google.com, quic_eberman@quicinc.com, roypat@amazon.co.uk, jgg@nvidia.com, peterx@redhat.com, david@redhat.com, rientjes@google.com, fvdl@google.com, jthoughton@google.com, seanjc@google.com, pbonzini@redhat.com, zhiquan1.li@intel.com, fan.du@intel.com, jun.miao@intel.com, isaku.yamahata@intel.com, muchun.song@linux.dev, mike.kravetz@oracle.com Cc: erdemaktas@google.com, vannapurve@google.com, qperret@google.com, jhubbard@nvidia.com, willy@infradead.org, shuah@kernel.org, brauner@kernel.org, bfoster@redhat.com, kent.overstreet@linux.dev, pvorel@suse.cz, rppt@kernel.org, richard.weiyang@gmail.com, anup@brainfault.org, haibo1.xu@intel.com, ajones@ventanamicro.com, vkuznets@redhat.com, maciej.wieczor-retman@intel.com, pgonda@google.com, oliver.upton@linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-fsdevel@kvack.org Date: Tue, 28 Jan 2025 10:42:57 +0100 In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.54.3 (3.54.3-1.fc41) Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Hey Ackerley, On Tue, 2024-09-10 at 23:43 +0000, Ackerley Tng wrote: > Hello, >=20 > This patchset is our exploration of how to support 1G pages in > guest_memfd, and > how the pages will be used in Confidential VMs. We've discussed this patchset at LPC and in the guest-memfd calls. Can you please summarise the discussions here as a follow-up, so we can also continue discussing on-list, and not repeat things that are already discussed? Also - as mentioned in those meetings, we at AMD are interested in this series along with SEV-SNP support - and I'm also interested in figuring out how we collaborate on the evolution of this series. Thanks, Amit