From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Tyshchenko Subject: Re: Unshared IOMMU issues Date: Thu, 16 Feb 2017 17:02:01 +0200 Message-ID: References: <58A48E5E020000780013A512@prv-mh.provo.novell.com> <58A58091020000780013A93E@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <58A58091020000780013A93E@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich Cc: Julien Grall , Stefano Stabellini , Xen Devel List-Id: xen-devel@lists.xenproject.org SGksIEphbi4KCk9uIFRodSwgRmViIDE2LCAyMDE3IGF0IDExOjM2IEFNLCBKYW4gQmV1bGljaCA8 SkJldWxpY2hAc3VzZS5jb20+IHdyb3RlOgo+Pj4+IE9uIDE1LjAyLjE3IGF0IDE4OjQzLCA8b2xl a3N0eXNoQGdtYWlsLmNvbT4gd3JvdGU6Cj4+IDEuCj4+IEkgbmVlZDoKPj4gQWxsb3cgUDJNIGNv cmUgb24gQVJNIHRvIHVwZGF0ZSBJT01NVSBtYXBwaW5nIGZyb20gdGhlIGZpcnN0ICJwMm1fc2V0 X2VudHJ5Ii4KPj4gSSBkbzoKPj4gSSBleHBsaWNpdGx5IHNldCBuZWVkX2lvbW11IGZsYWcgZm9y ICpldmVyeSogZ3Vlc3QgZG9tYWluIGR1cmluZwo+PiBpb21tdV9kb21haW5faW5pdCgpIG9uIEFS TSBpbiBjYXNlIGlmIHBhZ2UgdGFibGUgaXMgbm90IHNoYXJlZC4KPj4gQXQgdGhhdCBtb21lbnQg SSBoYXZlIG5vIGtub3dsZWRnZSBhYm91dCB3aWxsIGFueSBkZXZpY2UgYmUgYXNzaWduZWQKPj4g dG8gdGhpcyBkb21haW4gb3Igbm90LiBJIGFtIGp1c3Qgd2FudCB0byByZWNlaXZlIGFsbCBtYXBw aW5nIHVwZGF0ZXMKPj4gZnJvbSBQMk0gY29kZS4gVGhlIFAyTSB3aWxsIHVwZGF0ZSBJT01NVSBt YXBwaW5nIG9ubHkgd2hlbiBuZWVkX2lvbW11Cj4+IGlzIHNldCBhbmQgcGFnZSB0YWJsZSBpcyBu b3Qgc2hhcmVkLgo+PiBJIGhhdmUgZG91YnRzOgo+PiBJcyBpdCBjb3JyZWN0IHRvIGp1c3QgZm9y Y2UgbmVlZF9pb21tdSBmbGFnPwo+Cj4gTm8sIEkgZG9uJ3QgdGhpbmsgc28uIFRoaXMgaXMgYSB3 YXN0ZSBvZiBhIG1lYXN1cmFibGUgYW1vdW50IG9mCj4gcmVzb3VyY2VzIHdoZW4gcGFnZSB0YWJs ZXMgYXJlbid0IHNoYXJlZC4KPgo+PiBPciBtYXliZSBhbm90aGVyIGZsYWcgc2hvdWxkIGJlIGlu dHJvZHVjZWQ/Cj4KPiBOb3Qgc3VyZSB3aGF0IHlvdSB0aGluayBvZiBoZXJlLiBXaGVyZSdzIHRo ZSBwcm9ibGVtIHdpdGggYnVpbGRpbmcKPiBJT01NVSBwYWdlIHRhYmxlcyBhdCB0aGUgdGltZSB0 aGUgZmlyc3QgZGV2aWNlIGdldHMgYXNzaWduZWQsIGp1c3QKPiBsaWtlIHg4NiBkb2VzPwpPSywg SSBoYXZlIGFscmVhZHkgaGFkIGEgbG9vayBhdCAgYXJjaF9pb21tdV9wb3B1bGF0ZV9wYWdlX3Rh YmxlKCkgZm9yIHg4Ni4KSSBkb24ndCBrbm93IGF0IHRoZSBtb21lbnQgaG93IHRoaXMgc29sdXRp b24gY2FuIGhlbHAgbWUuClRoZXJlIGFyZSBhIGxlYXN0IHR3byBwb2ludHMgdGhlIHByZXZlbnQg bWUgZnJvbSBkb2luZyB0aGUgc2ltaWxhciB0aGluZy4KMS4gRm9yIGNyZWF0ZSBJT01NVSBtYXBw aW5nIEkgbmVlZCBib3RoIG1mbiBhbmQgZ2ZuLiAoKyBmbGFncykuCkkgYW0gYWJsZSB0byBnZXQg bWZuIG9ubHkuIEhvdyBjYW4gSSBmaW5kIGNvcnJlc3BvbmRpbmcgZ2ZuPwoyLiBUaGUgZC0+cGFn ZV9saXN0IHNlZW1zIG9ubHkgY29udGFpbnMgZG9tYWluIFJBTSAobm90IDEwMCUgc3VyZSkuCldo ZXJlIGNhbiBJIGdldCBvdGhlciByZWdpb25zIChtbWlvcywgZXRjKT8KCj4KPj4gT3Igd2UgZG9u J3QgbmVlZCB0byBjaGVjayBmb3IgbmVlZF9pb21tdSBmbGFnIGJlZm9yZSB1cGRhdGluZyBJT01N VQo+PiBtYXBwaW5nIGluIFAyTSBjb2RlLCBtYXliZSBpb21tdV9lbmFibGVkIHdvdWxkIGJlIGVu b3VnaD8KPgo+IE5vLCBhZmFpY3QgdGhhdCB3b3VsZCBhZ2FpbiBtZWFuIG1haW50YWluaW5nIElP TU1VIHBhZ2UgdGFibGVzCj4gcmVnYXJkbGVzcyBvZiB3aGV0aGVyIHRoZXkncmUgbmVlZGVkLgo+ Cj4+IDIuCj4+IEkgbmVlZDoKPj4gQWxsb3cgSU9NTVUgZHJpdmVyIHRvIGJlIHJlYWR5IHRvIGhh bmRsZSBJT01NVSBtYXBwaW5nIHVwZGF0ZXMgZnJvbQo+PiB0aGUgZmlyc3QgInAybV9zZXRfZW50 cnkiLgo+Cj4gV2h5IChzZWUgYWxzbyB0aGUgcXVlc3Rpb24gYWJvdmUpPwpJIGV4cGxhaW5lZCBh Ym92ZS4gIFVuZm9ydHVuYXRlbHksIEkgZG9uJ3Qgc2VlIGhvdyBjYW4gSSBnZXQgYWxsCmlvdmEt dG8tcGEgbWFwcGluZwp0aGF0IHRvb2sgcGxhY2UgZm9yIHRoaXMgZG9tYWluIGZyb20gdGhlIHN0 YXJ0IG9uIEFSTS4KCj4KPj4gSSBkbzoKPj4gSSBhbHdheXMgYWxsb2NhdGUgSU9NTVUgcGFnZSB0 YWJsZSBkdXJpbmcgaW9tbXVfZG9tYWluX2luaXQoKSBmb3IgZXZlcnkKPj4gZG9tYWluIGV2ZW4g dGhpcyBkb21haW4gd29uJ3QgaGF2ZSBhbnkgYXNzaWduZWQgZGV2aWNlcyBpbiBmdXR1cmUuIEkK Pj4gZG9uJ3Qgd2FpdCBmb3IgaW9tbXVfY29uc3RydWN0Lgo+PiBJIGhhdmUgZG91YnRzOgo+PiBJ cyBpdCBjb3JyZWN0PyBJdCBtaWdodCBiZSBqdXN0IHdhc3RpbmcgbWVtb3J5IGFuZCBDUFUgdGlt ZSBpZiBkb21haW4KPj4gZG9lc24ndCBoYXZlIGFueSBhc3NpZ25lZCBkZXZpY2VzIGluIGZ1dHVy ZS4KPgo+IEluZGVlZC4KPgo+IEphbgo+CgoKCi0tIApSZWdhcmRzLAoKT2xla3NhbmRyIFR5c2hj aGVua28KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhl bi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0 cy54ZW4ub3JnL3hlbi1kZXZlbAo=