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From: Wei Liu <wei.liu2@citrix.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Lars Kurth <lars.kurth@citrix.com>,
	Changlong Xie <xiecl.fnst@cn.fujitsu.com>,
	Wei Liu <wei.liu2@citrix.com>,
	Ian Campbell <ian.campbell@citrix.com>,
	Wen Congyang <wency@cn.fujitsu.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	Jiang Yunhong <yunhong.jiang@intel.com>,
	Ian Jackson <ian.jackson@eu.citrix.com>,
	xen devel <xen-devel@lists.xen.org>,
	Dong Eddie <eddie.dong@intel.com>,
	Gui Jianfeng <guijianfeng@cn.fujitsu.com>,
	Shriram Rajagopalan <rshriram@cs.ubc.ca>,
	Yang Hongyang <hongyang.yang@easystack.cn>
Subject: Re: [PATCH v8 05/13] tools/libxc: support to resume uncooperative HVM guests
Date: Fri, 19 Feb 2016 17:21:01 +0000	[thread overview]
Message-ID: <20160219172101.GX3723@citrix.com> (raw)
In-Reply-To: <20160219171631.GE11161@char.us.oracle.com>

On Fri, Feb 19, 2016 at 12:16:31PM -0500, Konrad Rzeszutek Wilk wrote:
> > > .. forbid what? PVHVM resuming with fast=0? Why?  Because the guest may
> > > fall on its face?
> > 
> > Yes, forbid resuming PVHVM with fast=0 if we have no clear definition of
> > how it works. It's not because guest would fall, it's because we can't
> > tell which side (the guest or the toolstack) is buggy when the guest
> > falls.
> > 
> > But it looks like we (you ;-) ) have clear idea of how it works, we
> > (you) just need to write it down.
> 
> 
> Where? The header file where SHUTDOWN_suspend is introduced?
> 
> Or the libxc ones?

I have no opinion whether Xen public header should contain such text,
but I do wish to have better document for xc_domain_resume.  Basically
it is just turning what you wrote in this thread to comment for
xc_domain_resume.

Wei.

  reply	other threads:[~2016-02-19 17:21 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-18  2:43 [PATCH v8 00/13] Prerequisite patches for COLO Wen Congyang
2016-02-18  2:43 ` [PATCH v8 01/13] libxl/remus: init checkpoint callback in Remus setup callback Wen Congyang
2016-02-18 12:30   ` Wei Liu
2016-02-18  2:43 ` [PATCH v8 02/13] tools/libxl: move remus code into libxl_remus.c Wen Congyang
2016-02-18  2:43 ` [PATCH v8 03/13] tools/libxl: move save/restore code into libxl_dom_save.c Wen Congyang
2016-02-18  2:43 ` [PATCH v8 04/13] libxl/save: Refactor libxl__domain_suspend_state Wen Congyang
2016-02-18  2:43 ` [PATCH v8 05/13] tools/libxc: support to resume uncooperative HVM guests Wen Congyang
2016-02-18 12:13   ` Wei Liu
2016-02-19 14:15     ` Konrad Rzeszutek Wilk
2016-02-19 14:43       ` Wei Liu
2016-02-19 14:52         ` Ian Campbell
2016-02-19 15:16           ` Wei Liu
2016-02-19 16:20             ` Konrad Rzeszutek Wilk
2016-02-19 16:42               ` Wei Liu
2016-02-19 17:16                 ` Konrad Rzeszutek Wilk
2016-02-19 17:21                   ` Wei Liu [this message]
2016-02-18  2:43 ` [PATCH v8 06/13] tools/libxl: introduce enum type libxl_checkpointed_stream Wen Congyang
2016-02-18  2:43 ` [PATCH v8 07/13] migration/save: pass checkpointed_stream from libxl to libxc Wen Congyang
2016-02-18  2:43 ` [PATCH v8 08/13] tools/libxl: export logdirty_init Wen Congyang
2016-02-18  2:43 ` [PATCH v8 09/13] tools/libxl: rename remus device to checkpoint device Wen Congyang
2016-02-18  2:43 ` [PATCH v8 10/13] tools/libxl: adjust the indentation Wen Congyang
2016-02-18  2:43 ` [PATCH v8 11/13] tools/libxl: store remus_ops in checkpoint device state Wen Congyang
2016-02-18  2:43 ` [PATCH v8 12/13] tools/libxl: move remus state into a seperate structure Wen Congyang
2016-02-18  2:43 ` [PATCH v8 13/13] tools/libxl: seperate device init/cleanup from checkpoint device layer Wen Congyang
2016-02-26 15:54 ` [PATCH v8 00/13] Prerequisite patches for COLO Wei Liu
2016-02-26 18:16   ` Konrad Rzeszutek Wilk

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