linux-kernel - Re: [PATCH] kvm/vmx: EPTP switching test

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Message-ID: <CALCETrVaFshy7V5e34J=+83sAthMNpphL8LRXxqFX7zKB-Zetg@mail.gmail.com>
Date:	Mon, 16 Nov 2015 10:52:52 -0800
From:	Andy Lutomirski <luto@...capital.net>
To:	Radim Krčmář <rkrcmar@...hat.com>
Cc:	"Michael S. Tsirkin" <mst@...hat.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Paolo Bonzini <pbonzini@...hat.com>,
	Wanpeng Li <wanpeng.li@...ux.intel.com>,
	Andy Lutomirski <luto@...nel.org>,
	Xiao Guangrong <guangrong.xiao@...ux.intel.com>,
	Kai Huang <kai.huang@...ux.intel.com>,
	Mihai Donțu <mdontu@...defender.com>,
	kvm list <kvm@...r.kernel.org>
Subject: Re: [PATCH] kvm/vmx: EPTP switching test

On Mon, Nov 16, 2015 at 10:18 AM,
=?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= <rkrcmar@...hat.com> wrote:
> 2015-11-16 19:59+0200, Michael S. Tsirkin:
>> On Mon, Nov 16, 2015 at 06:51:06PM +0100, =?UTF-8?q?Radim=20Kr=C4=8Dm=C3=A1=C5=99?= wrote:
>>> 2015-11-15 18:00+0200, Michael S. Tsirkin:
>>> (And I think that eptp switching is expected to be used in conjuction
>>>  with #VE, so it'd then make sense to implement a nop for it as well.)
>>
>> No idea how would I even test it, so I'm not interested in #VE at this
>> point.  If you are - go ahead and post a patch for that on top though,
>> why not.
>
> I thought that it's going to be simpler to provide functionality (that
> utilizes eptp switching) to the guest through #VE, which probably isn't
> true as I think more about it.  (Not interested in implementing it :])

I'm willing to review a #VE stub.  I'm not likely to implement it.

--Andy
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