From owner-freebsd-virtualization@FreeBSD.ORG  Wed Mar 27 10:05:48 2013
Return-Path: <owner-freebsd-virtualization@FreeBSD.ORG>
Delivered-To: freebsd-virtualization@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org
 [IPv6:2001:1900:2254:206a::19:1])
 by hub.freebsd.org (Postfix) with ESMTP id 5E04F341
 for <freebsd-virtualization@freebsd.org>; Wed, 27 Mar 2013 10:05:48 +0000 (UTC)
 (envelope-from syuu@dokukino.com)
Received: from mail-pb0-f47.google.com (mail-pb0-f47.google.com
 [209.85.160.47]) by mx1.freebsd.org (Postfix) with ESMTP id 3A0FAAA4
 for <freebsd-virtualization@freebsd.org>; Wed, 27 Mar 2013 10:05:48 +0000 (UTC)
Received: by mail-pb0-f47.google.com with SMTP id rp2so5200072pbb.34
 for <freebsd-virtualization@freebsd.org>; Wed, 27 Mar 2013 03:05:42 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dokukino.com; s=google;
 h=x-received:mime-version:in-reply-to:references:from:date:message-id
 :subject:to:cc:content-type;
 bh=ovotHR5wcOBH9rptwSOJJdPHTUMePuuBD2pLt91lwbU=;
 b=bILSKsX0jx+AzzCFVcyhp3owLr06PzlsnaPF1zaUBG6nAwBEqB62vq02fqu2T44E9L
 b2LRGO3vNX5iUYkSgY0pDUUdsD1m8SXu7OsP/+wxbkpE0dUY7FCNKipUG5e05/hYJk1E
 bsGLneuSUIPCZncoKQkBtkp/zMOWEpxDWlovE=
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
 d=google.com; s=20120113;
 h=x-received:mime-version:in-reply-to:references:from:date:message-id
 :subject:to:cc:content-type:x-gm-message-state;
 bh=ovotHR5wcOBH9rptwSOJJdPHTUMePuuBD2pLt91lwbU=;
 b=fygRPS1FeXGKV/mgenAMC0Pej4PEgPcFUM0D7fXvyGWA+XqcrgGhI1kz6NJ+Dw4rjl
 QzvBZM1uIBQu1usj+709IeAW0891KA7pqYU3IBLGay2tksOnhDQLfwsnvktvtcZyB1aY
 vbyJVxe+iJ/mCNTUeEYQUE2Msv023yfqh0xJTMbuQfNIixHK0wtH1x/YZfYhw5dUWq/r
 gO6A842Kkx2nV90sh1mJrY43WmTSBL5BhOF8BveuPmfych12svs6p2ASl1JIPjbUoWE+
 CQK6L7cGqjbT94USmHo1a1XoQumK3exHEaeOuTIar0drsyI/0eKNbt4Rpv1GchbEAKmW
 xgTg==
X-Received: by 10.66.81.2 with SMTP id v2mr28558583pax.204.1364378742188; Wed,
 27 Mar 2013 03:05:42 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.68.243.41 with HTTP; Wed, 27 Mar 2013 03:05:02 -0700 (PDT)
In-Reply-To: <CAFgRE9FqqJSTrtTA4PmdSsCdbEGi57jHOLZH0EkK83yJ3HqYpQ@mail.gmail.com>
References: <CAJ-Y7VcZ=EbAesb+8Pup1YsSE_yaM_345KZjwibjaC=GMo0xfA@mail.gmail.com>
 <CAFgRE9FqqJSTrtTA4PmdSsCdbEGi57jHOLZH0EkK83yJ3HqYpQ@mail.gmail.com>
From: Takuya ASADA <syuu@dokukino.com>
Date: Wed, 27 Mar 2013 19:05:02 +0900
Message-ID: <CALG4x-Wrhtq000-5RuVkdmRH+cjDvg-vGLaUzxWi9k2o5zEmHw@mail.gmail.com>
Subject: Re: suspend/resume on BHyVe
To: Neel Natu <neelnatu@gmail.com>
Content-Type: text/plain; charset=UTF-8
X-Gm-Message-State: ALoCoQmDtUfw+G8SKjRXKagNTb2CdJFkOBPBDpjS8D8BJJj0umMJHByI0rxPkcJa9brJkMLak/hC
Cc: freebsd-virtualization@freebsd.org
X-BeenThere: freebsd-virtualization@freebsd.org
X-Mailman-Version: 2.1.14
Precedence: list
List-Id: "Discussion of various virtualization techniques FreeBSD supports."
 <freebsd-virtualization.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-virtualization>
List-Post: <mailto:freebsd-virtualization@freebsd.org>
List-Help: <mailto:freebsd-virtualization-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization>, 
 <mailto:freebsd-virtualization-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 27 Mar 2013 10:05:48 -0000

Hi,

> A brute force way of figuring out all the state must be saved is to
> look at all the initialization functions that are called when a vm and
> a vcpu are created. So, this would be vm_create() and vcpu_init() in
> the kernel module.

I think these things are need to dump by resume action:

- guest memory area
- struct vmxctx
- VMCS page
- VLAPIC registers
- virtio device state (dumping virtio ring?)
- current configuration of bhyve process (with was configured by an
arguments passed to bhyve process)

Maybe there's more.