linux-kernel - Re: [RFC PATCH] x86_64,entry,xen: Do not invoke espfix64 on Xen

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Message-ID: <53C57B26.1020105@oracle.com>
Date:	Tue, 15 Jul 2014 15:04:06 -0400
From:	Boris Ostrovsky <boris.ostrovsky@...cle.com>
To:	"H. Peter Anvin" <hpa@...or.com>,
	Andy Lutomirski <luto@...capital.net>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Subject: Re: [RFC PATCH] x86_64,entry,xen: Do not invoke espfix64 on Xen

On 07/15/2014 03:00 PM, H. Peter Anvin wrote:
> On 07/15/2014 12:00 PM, Boris Ostrovsky wrote:
>> One way or the other we need to disable espfix64 on PV --- I discovered
>> that one of Peter's tests crashes the hypervisor.
>>
> You do realize that that means you have bigger problems than just
> espfix, right?

Yes.

-boris
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