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From: "Jan Beulich" <JBeulich@suse.com>
To: Yu Zhang <yu.c.zhang@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>,
	George Dunlap <George.Dunlap@eu.citrix.com>,
	Andrew Cooper <andrew.cooper3@citrix.com>,
	George Dunlap <george.dunlap@citrix.com>,
	"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>,
	Paul Durrant <paul.durrant@citrix.com>,
	Zhiyuan Lv <zhiyuan.lv@intel.com>,
	Jun Nakajima <jun.nakajima@intel.com>
Subject: Re: [PATCH v10 5/6] x86/ioreq server: Asynchronously reset outstanding p2m_ioreq_server entries.
Date: Thu, 06 Apr 2017 01:43:18 -0600	[thread overview]
Message-ID: <58E60DB6020000780014DB41@prv-mh.provo.novell.com> (raw)
In-Reply-To: <58E52922.1030500@linux.intel.com>

>>> On 05.04.17 at 19:28, <yu.c.zhang@linux.intel.com> wrote:
> Well, count in atomic_write_ept_entry() only works for ept. Besides, it 
> requires
> interface changes - need to pass the p2m.
> Another thought is - now in XenGT, PoD is disabled to make sure gfn->mfn 
> does
> not change. So how about we disable ballooning if ioreq.entry_count is 
> not 0?

You can't disable ballooning - the guest is free to make decisions
regarding what memory to return to the hypervisor all by itself.
Tool stack directions (via xenstore) are merely a hint for well
behaved guests.

Jan


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Xen-devel mailing list
Xen-devel@lists.xen.org
https://lists.xen.org/xen-devel

  parent reply	other threads:[~2017-04-06  7:43 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-02 12:24 [PATCH v10 0/6] x86/ioreq server: Introduce HVMMEM_ioreq_server mem type Yu Zhang
2017-04-02 12:24 ` [PATCH v10 1/6] x86/ioreq server: Release the p2m lock after mmio is handled Yu Zhang
2017-04-02 12:24 ` [PATCH v10 2/6] x86/ioreq server: Add DMOP to map guest ram with p2m_ioreq_server to an ioreq server Yu Zhang
2017-04-03 14:21   ` Jan Beulich
2017-04-05 13:48   ` George Dunlap
2017-04-02 12:24 ` [PATCH v10 3/6] x86/ioreq server: Add device model wrappers for new DMOP Yu Zhang
2017-04-03  8:13   ` Paul Durrant
2017-04-03  9:28     ` Wei Liu
2017-04-05  6:53       ` Yu Zhang
2017-04-05  9:21         ` Jan Beulich
2017-04-05  9:22           ` Yu Zhang
2017-04-05  9:38             ` Jan Beulich
2017-04-05 10:08         ` Wei Liu
2017-04-05 10:20           ` Wei Liu
2017-04-05 10:21             ` Yu Zhang
2017-04-05 10:21           ` Yu Zhang
2017-04-05 10:33             ` Wei Liu
2017-04-05 10:26               ` Yu Zhang
2017-04-05 10:46                 ` Jan Beulich
2017-04-05 10:50                   ` Yu Zhang
2017-04-02 12:24 ` [PATCH v10 4/6] x86/ioreq server: Handle read-modify-write cases for p2m_ioreq_server pages Yu Zhang
2017-04-02 12:24 ` [PATCH v10 5/6] x86/ioreq server: Asynchronously reset outstanding p2m_ioreq_server entries Yu Zhang
2017-04-03 14:36   ` Jan Beulich
2017-04-03 14:38     ` Jan Beulich
2017-04-05  7:18     ` Yu Zhang
2017-04-05  8:11       ` Jan Beulich
2017-04-05 14:41   ` George Dunlap
2017-04-05 16:22     ` Yu Zhang
2017-04-05 16:35       ` George Dunlap
2017-04-05 16:32         ` Yu Zhang
2017-04-05 17:01           ` George Dunlap
2017-04-05 17:18             ` Yu Zhang
2017-04-05 17:28               ` Yu Zhang
2017-04-05 18:02                 ` Yu Zhang
2017-04-05 18:04                   ` Yu Zhang
2017-04-06  7:48                     ` Jan Beulich
2017-04-06  8:27                       ` Yu Zhang
2017-04-06  8:44                         ` Jan Beulich
2017-04-06  7:43                 ` Jan Beulich [this message]
2017-04-05 17:29               ` George Dunlap
2017-04-02 12:24 ` [PATCH v10 6/6] x86/ioreq server: Synchronously reset outstanding p2m_ioreq_server entries when an ioreq server unmaps Yu Zhang
2017-04-03  8:16   ` Paul Durrant
2017-04-03 15:23   ` Jan Beulich
2017-04-05  9:11     ` Yu Zhang
2017-04-05  9:41       ` Jan Beulich
2017-04-05 14:46   ` George Dunlap

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