From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: PCI passthrough will cause unknown device appearance in device manager of Windows OS via xenstore keys Date: Mon, 10 Apr 2017 15:21:41 +0100 Message-ID: References: <9B58885955C6DD468CCDB27E993605EE0BA6DC19@SZXEMI502-MBS.china.huawei.com> <20170410132858.x7dymdyh6nh73qp2@citrix.com> <20170410141215.GI21201@char.us.oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20170410141215.GI21201@char.us.oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Konrad Rzeszutek Wilk , Wei Liu , Venu Busireddy Cc: "Xuquan (Quan Xu)" , "sstabellini@kernel.org" , Yanqiangjun , Ian Jackson , lidonglin , "xen-devel@lists.xen.org" , Fanhenglong , "dengkai (A)" List-Id: xen-devel@lists.xenproject.org T24gMTAvMDQvMTcgMTU6MTIsIEtvbnJhZCBSemVzenV0ZWsgV2lsayB3cm90ZToKPiBPbiBNb24s IEFwciAxMCwgMjAxNyBhdCAwMjoyODo1OFBNICswMTAwLCBXZWkgTGl1IHdyb3RlOgo+PiBPbiBN b24sIEFwciAxMCwgMjAxNyBhdCAwMTo0NjoyMFBNICswMTAwLCBBbmRyZXcgQ29vcGVyIHdyb3Rl Ogo+Pj4gT24gMTAvMDQvMTcgMTI6MjQsIGxpZG9uZ2xpbiB3cm90ZToKPj4+PiBIaSBhbGw6Cj4+ Pj4KPj4+PiAgICAgICAgICAgICAgICAgSSBoYXZlIG9uZSBxdWVzdGlvbiBhYm91dCBQQ0kgcGFz c3Rocm91Z2guIEkgZm91bmQKPj4+PiB0aGF0IGlmIEkgY3JlYXRlZCBhIFZNIHdpdGggaG9zdCBw Y2kgZGV2aWNlKGNmZyBmaWxlIGFzIGJlbG93KSwgdGhlcmUKPj4+PiB3ZXJlIHNvbWUgeGVuc3Rv cmUga2V5cyBleHNpdGluZyBpbiAvbG9jYWwvZG9tYWluLzAgYW5kCj4+Pj4gL2xvY2FsL2RvbWFp bi9Eb21JRC8uIEJlc2lkZXMgSSBmb3VuZCBvbmUgdW5rbm93biBkZXZpY2UgaW4gZGV2aWNlCj4+ Pj4gbWFuYWdlciBvZiBXaW5kb3dzIE9TIHdpdGggQ2xhc3MgSUQgRkY4MCBmcm9tIHZlbmRvciBJ RCA1ODUzLiBNeQo+Pj4+IHF1ZXN0aW9ucyAgYXJlIGFzIGJlbG93Ogo+Pj4+Cj4+Pj4gIAo+Pj4+ Cj4+Pj4gMS4gICAgICAgV2h5IGRvIHdlIGNyZWF0ZSBmcm9udGVuZCBhbmQgYmFja2VuZCBrZXkg cGFpcnMgaW4geGVuc3RvcmU/Cj4+Pj4gIEkgdGhpbmsgIFBhc3N0aHJvdWdoIGlzIG5vdCBQViwg IHdhcyBpdCBwb3NzaWJsZSB0aGF0IHdlIGp1c3QgdXNlZAo+Pj4+IHRoZXNlIGtleXMgdG8gcmVj b3JkIHNvbWV0aGluZz8KPj4+Pgo+Pj4+IDIuICAgICAgICBBZnRlciByZXZpZXcgdGhlIGNvZGUs IEkgdGhpbmsgYmFja2VuZCBrZXlzIGFyZSB1c2VkIHRvCj4+Pj4gcmVjb3JkIHN0YXRlIG9mIGhv c3RkZXYsIHNvbWUgY29kZXMgd2lsbCBxdWVyeSBzb21ldGhpbmcgdXNpbmcgdGhlc2UKPj4+PiBr ZXlzLiBCdXQgZm9yIGZyb250ZW5kIGtleXMsIGNhbiB3ZSBkZWxldGUgdGhlbT8KPj4+Pgo+Pj4+ IDMuICAgICAgIGlmIGZyb250ZW5kIGtleXMgZXhpc3QgaW4geGVuc3RvcmUsIHRoZW4gdW5rbm93 biBkZXZpY2Ugd2lsbAo+Pj4+IGFwcGVhciBpbiBkZXZpY2UgbWFuYWdlci4gQ2FuIHdlIGZpeCB0 aGlzPyAgRm9yICBhbiBvYnNlc3NpdmUsICBoZQo+Pj4+IGNhbuKAmXQgc3RhbmQgZm9yIHRoaXMu Cj4+Pj4KPj4+IFRoaXMgaXMgYSBsaWJ4bCBidWcgd2hpY2ggaGFzIGJlZW4gcmVwb3J0ZWQgYmVm b3JlLCBidXQgbm90aGluZyBoYXBwZW5lZC4KPj4+Cj4+PiBsaWJ4bCBtdXN0IG5vdCBzdGFydCBh IFBWIHBjaS1iYWNrIHdoZW4gZG9pbmcgSFZNIFBDSSBwYXNzdGhyb3VnaCB1c2luZwo+Pj4gcWVt dSwgYmVjYXVzZSBhYnNvbHV0ZWx5IG5vdGhpbmcgZ29vZCBjYW4gY29tZSBvZiBoYXZpbmcgdHdv IGRpZmZlcmVudAo+Pj4gd2F5cyBvZiBwb2tpbmcgYXQgUENJIHN0YXRlLgo+Pj4KPj4+IFRoZSBw YXRjaCwgdW5jaGFuZ2VkIGZyb20gYmVmb3JlLCBpcwo+Pj4gaHR0cHM6Ly9naXRodWIuY29tL3hl bnNlcnZlci94ZW4tNC43LnBnL2Jsb2IvbWFzdGVyL21hc3Rlci8wMDAxLWxpYnhsLURvbi10LWlu c2VydC1QQ0ktZGV2aWNlLWludG8teGVuc3RvcmUtZm9yLUhWTS0ucGF0Y2gKPj4+Cj4+IElTVFIg S29ucmFkIG1hZGUgc29tZSBjb21tZW50cyBhYm91dCBpdC4gQ0MgS29ucmFkLgo+IEF5ZS4gTXkg cHJpbWFyeSBiZWVmIHdhcyB0aGF0IHlvdSBuZWVkIHNvbWUgRkxSIG1lY2hhbmlzbSBhbmQgcGNp YmFjawo+IGRvZXMgdGhhdC4gVGhlICdkb19mbHInIHdhcyB0aGUgc29sdXRpb24gdG8gdGhhdCAt IGFzIHlvdSBjb3VsZAo+IGVmZmVjdGl2ZWx5IGRvIGl0IHZpYSBhbiBpb2N0bCBhbmQgYWxsIHdv dWxkIGJlIGdvb2QuCj4KPiBFeGNlcHQgSSBhbSBwcm9iYWJseSBtaXNzaW5nIHNvbWUgZWRnZSBj YXNlIChsaWtlIGd1ZXN0IGlzIGtpbGxlZAo+IGFuZCB3ZSBuZWVkIHRvIGRvIGFuIEZMUiBhZ2Fp biwgb3IgdGhlcmUgYXJlIEFFUnMgdG8gZGVhbCB3aXRoLCBldGMpIHNvCj4gc29tZSBwY2liYWNr IC0+IHhlbnN0b3JlIC0+IGxpYnhsIG5lZWRzIHRvIGJlIGluIHBsYWNlIGV2ZW4gZm9yIEhWTSBn dWVzdHMuCj4KPiBKdXN0IGRpc2FibGluZyBwY2liYWNrIGZvciBIVk0gZG9lcyBub3Qgc29sdmUg dGhlIHByb2JsZW0gdGhhdDoKPgo+ICAtIFdlIG5lZWQgRkxSCj4gIC0gV2UgbmVlZCBBRVIgc3Vw cG9ydCAoQ0MtaW5nIFZlbnUgd2hvIGlzIHdvcmtpbmcgb24gdGhpcyBmb3IgbGlieGwvcGNpYmFj aykKClRoZSBwcm9ibGVtIGlzIHRoYXQgcGNpYmFjayBpcyB0d28gZGlzdGluY3QgcGllY2VzIG9m IGZ1bmN0aW9uYWxpdHkuICBJdApzaG91bGQgYmUgc3BsaXQgaW4gaGFsZiwgc28gdGhlICJzdGVh bCBhIGRldmljZSBmcm9tIGl0cyByZWFsIGRyaXZlciBhbmQKcHJvdmlkZSByZXNldCBmdW5jdGlv bmFsaXR5IiBpcyBwdXJwb3NlZnVsbHkgc2VwYXJhdGUgZnJvbSAiYmUgdGhlCnJldmVyc2UgaGFs ZiB0aGUgUFYgaW50ZXJmYWNlIi4KClFlbXUgaGFzIG5vIHByb2JsZW1zIHdpdGggcmVzZXR0aW5n IHRoZSBkZXZpY2Ugd2hlbiBuZWNlc3NhcnksIHRob3VnaCwKd2hpY2ggaXMgd2h5IHRoaXMgcGF0 Y2ggZnVuY3Rpb25zIHBlcmZlY3RseSB3ZWxsIGluIGEgcmVhbCBzeXN0ZW0uCgp+QW5kcmV3Cgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwg bWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK