From: Gleb Natapov <gleb@kernel.org>
To: Tang Chen <tangchen@cn.fujitsu.com>
Cc: pbonzini@redhat.com, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, mgorman@suse.de, yinghai@kernel.org,
isimatu.yasuaki@jp.fujitsu.com, guz.fnst@cn.fujitsu.com,
laijs@cn.fujitsu.com, kvm@vger.kernel.org, linux-mm@kvack.org,
x86@kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH 1/1] Move two pinned pages to non-movable node in kvm.
Date: Wed, 18 Jun 2014 09:12:30 +0300 [thread overview]
Message-ID: <20140618061230.GA10948@minantech.com> (raw)
In-Reply-To: <1403070600-6083-1-git-send-email-tangchen@cn.fujitsu.com>
On Wed, Jun 18, 2014 at 01:50:00PM +0800, Tang Chen wrote:
> [Questions]
> And by the way, would you guys please answer the following questions for me ?
>
> 1. What's the ept identity pagetable for ? Only one page is enough ?
>
> 2. Is the ept identity pagetable only used in realmode ?
> Can we free it once the guest is up (vcpu in protect mode)?
>
> 3. Now, ept identity pagetable is allocated in qemu userspace.
> Can we allocate it in kernel space ?
What would be the benefit?
>
> 4. If I want to migrate these two pages, what do you think is the best way ?
>
I answered most of those here: http://www.mail-archive.com/kvm@vger.kernel.org/msg103718.html
--
Gleb.
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next prev parent reply other threads:[~2014-06-18 6:12 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-18 5:50 [RFC PATCH 1/1] Move two pinned pages to non-movable node in kvm Tang Chen
2014-06-18 6:12 ` Gleb Natapov [this message]
2014-06-18 6:50 ` Tang Chen
2014-06-19 9:20 ` Gleb Natapov
2014-06-19 19:00 ` Marcelo Tosatti
2014-06-20 3:20 ` Tang Chen
2014-06-20 11:15 ` Gleb Natapov
2014-06-20 12:53 ` Marcelo Tosatti
2014-06-20 14:26 ` Gleb Natapov
2014-06-20 20:31 ` Marcelo Tosatti
2014-06-20 20:39 ` Marcelo Tosatti
2014-06-23 1:48 ` Tang Chen
2014-06-30 1:45 ` Tang Chen
2014-06-30 6:00 ` Gleb Natapov
2014-06-30 8:58 ` Tang Chen
2014-06-22 9:19 ` Gleb Natapov
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