linux-kernel - Re: [vMCE design RFC] Xen vMCE design

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Date:	Thu, 21 Jun 2012 17:06:56 +0100
From:	"Jan Beulich" <JBeulich@...e.com>
To:	"Jinsong Liu" <jinsong.liu@...el.com>
Cc:	"Ashok Raj" <ashok.raj@...el.com>,
	"Donald D Dugger" <donald.d.dugger@...el.com>,
	"Haitao Shan" <haitao.shan@...el.com>,
	"Jun Nakajima" <jun.nakajima@...el.com>,
	"Tony Luck" <tony.luck@...el.com>,
	"Will Auld" <will.auld@...el.com>,
	"Xiantao Zhang" <xiantao.zhang@...el.com>,
	"Yunhong Jiang" <yunhong.jiang@...el.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Keir Fraser" <keir@....org>
Subject: Re: [vMCE design RFC] Xen vMCE design

>>> On 20.06.12 at 18:13, "Liu, Jinsong" <jinsong.liu@...el.com> wrote:
> Recently we design xen vMCE as attached.
> Please kindly help me to review it, any comments/suggestions are 
> appreciated.

The concept looks quite okay, provided no OS has a problem with
the limitations imposed (most notably the restriction to a single
reporting bank, particularly in the context of e.g. Linux partly
ignoring the first bank under some conditions iirc).

As to not needing any migration specific adjustments - what if
a migration is in progress when an event needs to be delivered?

Jan

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