From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v10 6/6] x86/ioreq server: Synchronously reset outstanding p2m_ioreq_server entries when an ioreq server unmaps. Date: Wed, 05 Apr 2017 03:41:55 -0600 Message-ID: <58E4D803020000780014D213@prv-mh.provo.novell.com> References: <1491135867-623-1-git-send-email-yu.c.zhang@linux.intel.com> <1491135867-623-7-git-send-email-yu.c.zhang@linux.intel.com> <58E284FA020000780014C2F0@prv-mh.provo.novell.com> <58E4B4AA.5050303@linux.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <58E4B4AA.5050303@linux.intel.com> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Yu Zhang Cc: George Dunlap , Andrew Cooper , Paul Durrant , zhiyuan.lv@intel.com, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDA1LjA0LjE3IGF0IDExOjExLCA8eXUuYy56aGFuZ0BsaW51eC5pbnRlbC5jb20+IHdy b3RlOgoKPiAKPiBPbiA0LzMvMjAxNyAxMToyMyBQTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+ IE9uIDAyLjA0LjE3IGF0IDE0OjI0LCA8eXUuYy56aGFuZ0BsaW51eC5pbnRlbC5jb20+IHdyb3Rl Ogo+Pj4gQWZ0ZXIgYW4gaW9yZXEgc2VydmVyIGhhcyB1bm1hcHBlZCwgdGhlIHJlbWFpbmluZyBw Mm1faW9yZXFfc2VydmVyCj4+PiBlbnRyaWVzIG5lZWQgdG8gYmUgcmVzZXQgYmFjayB0byBwMm1f cmFtX3J3LiBUaGlzIHBhdGNoIGRvZXMgdGhpcwo+Pj4gc3luY2hyb25vdXNseSBieSBpdGVyYXRp bmcgdGhlIHAybSB0YWJsZS4KPj4+Cj4+PiBUaGUgc3luY2hyb25vdXMgcmVzZXR0aW5nIGlzIG5l Y2Vzc2FyeSBiZWNhdXNlIHdlIG5lZWQgdG8gZ3VhcmFudGVlCj4+PiB0aGUgcDJtIHRhYmxlIGlz IGNsZWFuIGJlZm9yZSBhbm90aGVyIGlvcmVxIHNlcnZlciBpcyBtYXBwZWQuIEFuZAo+Pj4gc2lu Y2UgdGhlIHN3ZWVwaW5nIG9mIHAybSB0YWJsZSBjb3VsZCBiZSB0aW1lIGNvbnN1bWluZywgaXQg aXMgZG9uZQo+Pj4gd2l0aCBoeXBlcmNhbGwgY29udGludWF0aW9uLgo+Pj4KPj4+IFNpZ25lZC1v ZmYtYnk6IFl1IFpoYW5nIDx5dS5jLnpoYW5nQGxpbnV4LmludGVsLmNvbT4KPj4gUmV2aWV3ZWQt Ynk6IEphbiBCZXVsaWNoIDxqYmV1bGljaEBzdXNlLmNvbT4KPj4gYWxiZWl0IEkgdGhpbmsgLi4u Cj4+Cj4+PiAtLS0gYS94ZW4vYXJjaC94ODYvbW0vcDJtLmMKPj4+ICsrKyBiL3hlbi9hcmNoL3g4 Ni9tbS9wMm0uYwo+Pj4gQEAgLTEwMzEsNiArMTAzMSwzNSBAQCB2b2lkIHAybV9jaGFuZ2VfdHlw ZV9yYW5nZShzdHJ1Y3QgZG9tYWluICpkLAo+Pj4gICAgICAgcDJtX3VubG9jayhwMm0pOwo+Pj4g ICB9Cj4+PiAgIAo+Pj4gKy8qIFN5bmNocm9ub3VzbHkgbW9kaWZ5IHRoZSBwMm0gdHlwZSBmb3Ig YSByYW5nZSBvZiBnZm5zIGZyb20gb3QgdG8gbnQuICovCj4+PiArdm9pZCBwMm1fZmluaXNoX3R5 cGVfY2hhbmdlKHN0cnVjdCBkb21haW4gKmQsCj4+PiArICAgICAgICAgICAgICAgICAgICAgICAg ICAgIGdmbl90IGZpcnN0X2dmbiwgdW5zaWduZWQgbG9uZyBtYXhfbnIsCj4+PiArICAgICAgICAg ICAgICAgICAgICAgICAgICAgIHAybV90eXBlX3Qgb3QsIHAybV90eXBlX3QgbnQpCj4+PiArewo+ Pj4gKyAgICBzdHJ1Y3QgcDJtX2RvbWFpbiAqcDJtID0gcDJtX2dldF9ob3N0cDJtKGQpOwo+Pj4g KyAgICBwMm1fdHlwZV90IHQ7Cj4+PiArICAgIHVuc2lnbmVkIGxvbmcgZ2ZuID0gZ2ZuX3goZmly c3RfZ2ZuKTsKPj4+ICsgICAgdW5zaWduZWQgbG9uZyBsYXN0X2dmbiA9IGdmbiArIG1heF9uciAt IDE7Cj4+PiArCj4+PiArICAgIEFTU0VSVChvdCAhPSBudCk7Cj4+PiArICAgIEFTU0VSVChwMm1f aXNfY2hhbmdlYWJsZShvdCkgJiYgcDJtX2lzX2NoYW5nZWFibGUobnQpKTsKPj4+ICsKPj4+ICsg ICAgcDJtX2xvY2socDJtKTsKPj4+ICsKPj4+ICsgICAgbGFzdF9nZm4gPSBtaW4obGFzdF9nZm4s IHAybS0+bWF4X21hcHBlZF9wZm4pOwo+Pj4gKyAgICB3aGlsZSAoIGdmbiA8PSBsYXN0X2dmbiAp Cj4+PiArICAgIHsKPj4+ICsgICAgICAgIGdldF9nZm5fcXVlcnlfdW5sb2NrZWQoZCwgZ2ZuLCAm dCk7Cj4+PiArCj4+PiArICAgICAgICBpZiAoIHQgPT0gb3QgKQo+Pj4gKyAgICAgICAgICAgIHAy bV9jaGFuZ2VfdHlwZV9vbmUoZCwgZ2ZuLCB0LCBudCk7Cj4+PiArCj4+PiArICAgICAgICBnZm4r KzsKPj4+ICsgICAgfQo+Pj4gKwo+Pj4gKyAgICBwMm1fdW5sb2NrKHAybSk7Cj4+PiArfQo+PiAu Li4gdGhpcyBjb3VsZCBiZSBpbXByb3ZlZCBmb3IgcmVkdWN0aW9uIG9mIG92ZXJhbGwgbGF0ZW5j eTogQSBmaXhlZAo+PiBsaW1pdCBhcyBpbnB1dCBpZiBub3QgdmVyeSB1c2VmdWwsIGFzIGl0IGRv ZXMgbWF0dGVyIHF1aXRlIGEgYml0IHdoZXRoZXIKPj4gbmVlZCB0byBjYWxsIHAybV9jaGFuZ2Vf dHlwZV9vbmUoKS4gRG9pbmcgMjU2IGl0ZXJhdGlvbiB3aXRoIG5vCj4+IHNpbmdsZSBjYWxsIGlz IGdvaW5nIHRvIGJlIHByZXR0eSBmYXN0IEkgdGhpbmssIHNvIGl0IHdvdWxkIGJlIGRlc2lyYWJs ZQo+PiB0byB3ZWlnaCBkaWZmZXJlbnRseSBpdGVyYXRpb25zIHdpdGggYW5kIHdpdGhvdXQgY2Fs bCB0byB0aGF0IGZ1bmN0aW9uLgo+IAo+IE9oLCB0aGFua3MgZm9yIHlvdXIgYWR2aWNlLCB2ZXJ5 IGVubGlnaHRlbmluZy4KPiBXaXRoIGNvZGUgZnJlZXplIGRhdGUgYXBwcm9hY2hpbmcsIGhvdyBh Ym91dCB3ZSBzb2x2ZSB0aGlzIGluIGEgc2VwYXJhdGUgCj4gcGF0Y2g/IDopCgpXZWxsLCB0aGF0 J3Mgd2hhdCBJJ3ZlIHRyaWVkIHRvIGV4cHJlc3MgYnkgZ2l2aW5nIG15IFItYiB3aXRoIHRoZQpy ZXN0IHNpbXBseSBiZWluZyBhIHJlbWFyay4KCkphbgoKCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVs QGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=