From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:53259) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bmk57-0003Ih-72 for qemu-devel@nongnu.org; Wed, 21 Sep 2016 12:09:11 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bmk52-00036N-0z for qemu-devel@nongnu.org; Wed, 21 Sep 2016 12:09:08 -0400 Received: from mail-co1nam03on0063.outbound.protection.outlook.com ([104.47.40.63]:23052 helo=NAM03-CO1-obe.outbound.protection.outlook.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bmk51-000361-MQ for qemu-devel@nongnu.org; Wed, 21 Sep 2016 12:09:03 -0400 References: <147377800565.11859.4411044563640180545.stgit@brijesh-build-machine> <147377816978.11859.942423377333907417.stgit@brijesh-build-machine> <20160913183728.qcmhrxii44pug7ck@redhat.com> <8cee9c38-2948-83d1-81b4-8a282bc27fae@redhat.com> From: Brijesh Singh Message-ID: Date: Wed, 21 Sep 2016 11:08:53 -0500 MIME-Version: 1.0 In-Reply-To: <8cee9c38-2948-83d1-81b4-8a282bc27fae@redhat.com> Content-Type: text/plain; charset="windows-1252"; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH v1 16/22] i386: pc: load OS images at fixed location in SEV-enabled guest List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini , "Michael S. Tsirkin" Cc: brijesh.singh@amd.com, ehabkost@redhat.com, crosthwaite.peter@gmail.com, armbru@redhat.com, p.fedin@samsung.com, qemu-devel@nongnu.org, lcapitulino@redhat.com, rth@twiddle.net Hi Paolo, On 09/21/2016 10:58 AM, Paolo Bonzini wrote: > > > On 21/09/2016 17:55, Brijesh Singh wrote: >> I'm working on v2 and getting ready for another review but not sure how >> to address this feedback. For now, I can drop this patch from the series >> and get other patches reviewed. But I would like to get some direction >> on how do I go about adding -kernel support for SEV guest. > > Don't. The solution is to use UEFI, which runs in 64-bit mode and can > do DMA to shared pages. > Thanks. I will explore UEFI BIOS path. Just for confirmation you mean the OVMF project [1] right ? [1] http://www.linux-kvm.org/page/OVMF https://github.com/tianocore/tianocore.github.io/wiki/How-to-run-OVMF > Paolo >