From: Jan Beulich <jbeulich@suse.com>
To: Olaf Hering <olaf@aepfle.de>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
Ian Jackson <iwj@xenproject.org>, Wei Liu <wl@xen.org>,
Xen-devel <xen-devel@lists.xenproject.org>
Subject: Re: [PATCH] tools/libxenguest: Fix migration's debug option
Date: Mon, 5 Jul 2021 11:31:09 +0200 [thread overview]
Message-ID: <5e4986ad-d3ec-18af-b1ea-ccbce57a70ff@suse.com> (raw)
In-Reply-To: <20210705112548.22ae6d20.olaf@aepfle.de>
On 05.07.2021 11:25, Olaf Hering wrote:
> Am Mon, 5 Jul 2021 11:19:59 +0200
> schrieb Jan Beulich <jbeulich@suse.com>:
>
>> "The interface" being which one? The tool stack can map the guest's
>> grant table, so it is in the position to find out about all grants
>> without further hypervisor help.
>
> The interface means the code behind verify_frames.
>
> If there are indeed ways to query which pages belong to grants, how would the toolstack need to do that?
Map the grant table of the guest and walk it, recording any MFN for
which at least one valid r/w grant exists.
Jan
next prev parent reply other threads:[~2021-07-05 9:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-02 19:03 [PATCH] tools/libxenguest: Fix migration's debug option Andrew Cooper
2021-07-05 7:53 ` Olaf Hering
2021-07-05 7:57 ` Jan Beulich
2021-07-05 8:02 ` Olaf Hering
2021-07-05 8:23 ` Jan Beulich
2021-07-05 8:32 ` Olaf Hering
2021-07-05 9:19 ` Jan Beulich
2021-07-05 9:25 ` Olaf Hering
2021-07-05 9:31 ` Jan Beulich [this message]
2021-07-05 10:06 ` Andrew Cooper
2021-07-05 10:36 ` Jan Beulich
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