From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: question: xen/qemu - mmio mapping issues for device pass-through Date: Thu, 16 Mar 2017 09:31:53 -0600 Message-ID: <58CABDF90200007800143E1B@prv-mh.provo.novell.com> References: <58CAA9D00200007800143D87@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: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: "Xuquan (Quan Xu)" Cc: Kevin Tian , StefanoStabellini , "George.Dunlap@eu.citrix.com" , "ian.jackson@eu.citrix.com" , "xen-devel@lists.xen.org" , Fanhenglong , "anthony.perard@citrix.com" List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDE2LjAzLjE3IGF0IDE1OjIxLCA8eHVxdWFuOEBodWF3ZWkuY29tPiB3cm90ZToKPiBP biBNYXJjaCAxNiwgMjAxNyAxMDowNiBQTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+IE9uIDE2 LjAzLjE3IGF0IDE0OjU1LCA8eHVxdWFuOEBodWF3ZWkuY29tPiB3cm90ZToKPj4+IEkgdHJ5IHRv IHBhc3MtdGhyb3VnaCBhIGRldmljZSB3aXRoIDhHIGxhcmdlIGJhciwgc3VjaCBhcyBudmlkaWEK Pj4+IE02MChub3RlMSwgcGNpLWUgaW5mbyBhcyBiZWxvdykuIEl0IHRha2VzIGFib3V0ICdfXzE1 IHNjb25kc19fJyB0bwo+Pj4gdXBkYXRlIDhHIGxhcmdlIGJhciBpbiBRRU1VOjp4ZW5fcHRfcmVn aW9uX3VwZGF0ZSgpLi4KPj4+IFNwZWNpZmljYWxseSwgaXQgaXMgeGNfZG9tYWluX21lbW9yeV9t YXBwaW5nKCkgaW4geGVuX3B0X3JlZ2lvbl91cGRhdGUoKS4KPj4+Cj4+PiBEaWdnZWQgaW50byB4 Y19kb21haW5fbWVtb3J5X21hcHBpbmcoKSwgSSBmaW5kIGl0IG1haW5seSBjYWxsCj4+PiAiZG9f ZG9tY3RsCj4+PiDvvIjigKZjYXNlIFhFTl9ET01DVExfbWVtb3J5X21hcHBpbmfigKbvvIkiCj4+ PiB0byBtYXBwaW5nIG1taW8gcmVnaW9uLi4gb2YgY2F1c2UsIEkgZmluZCBvdXQgdGhhdCB0aGlz IG1hcHBpbmcgY291bGQKPj4+IHRha2UgYSB3aGlsZSBpbiB0aGUgY29kZSBjb21tZW50IGJlbG93 ICcgY2FzZQo+PlhFTl9ET01DVExfbWVtb3J5X21hcHBpbmcgJy4KPj4+Cj4+PiBteSBxdWVzdGlv bnM6Cj4+PiAxLiBjb3VsZCB3ZSBtYWtlIHRoaXMgbWFwcGluZyBtbWlvIHJlZ2lvbiBxdWlja2Vy Pwo+Pgo+IAo+IFRoYW5rcyBmb3IgeW91ciBxdWljayByZXBseS4KPiAKPj5ZZXMsIGUuZy4gYnkg dXNpbmcgbGFyZ2UgKDJNIG9yIDFHKSBwYWdlcy4gVGhpcyBoYXMgYmVlbiBvbiBteSB0b2RvIGxp c3QgZm9yCj4+cXVpdGUgYSB3aGlsZS4uLgo+Pgo+Pj4gMi4gaWYgY291bGQgbm90LCBkb2VzIGl0 IGxpbWl0IGJ5IGhhcmR3YXJlIHBlcmZvcm1hbmNlPwo+Pgo+PkknbSBhZnJhaWQgSSBkb24ndCB1 bmRlcnN0YW5kIHRoZSBxdWVzdGlvbi4gSWYgeW91IG1lYW4gIklzIGl0IGxpbWl0ZWQgYnkgaHcK Pj5wZXJmb3JtYW5jZSIsIHRoZW4gbm8sIHNlZSBhYm92ZS4gSWYgeW91IG1lYW4gIkRvZXMgaXQg bGltaXQgaHcgcGVyZm9ybWFuY2UiLAo+PnRoZW4gYWdhaW4gbm8sIEkgZG9uJ3QgdGhpbmsgc28g KG90aGVyIHRoYW4gdGhlIGVmZmVjdCBvZiBoYXZpbmcgbW9yZSBJT01NVQo+PnRyYW5zbGF0aW9u IGxldmVscyB0aGFuIHJlYWxseSBuZWNlc3NhcnkgZm9yIHN1Y2ggbGFyZ2UgYSByZWdpb24pLgo+ Pgo+IAo+IFNvcnJ5LCBteSBxdWVzdGlvbiBpcyAgIklzIGl0IGxpbWl0ZWQgYnkgaHcgcGVyZm9y bWFuY2UiLi4uIAo+IAo+IEkgYW0gbXVjaCBjb25mdXNlZC4gd2h5IGRvZXMgdGhpcyBtbWlvIG1h cHBpbmcgdGFrZSBhIHdoaWxlPwo+IEkgZ3Vlc3NlZCBpdCB0YWtlcyBhIGxvdCBvZiB0aW1lIHRv IHNldCB1cCBwMm0gLyBpb21tdSBlbnRyeS4gVGhhdCdzIHdoeSBJIAo+IGFzayAiSXMgaXQgbGlt aXRlZCBieSBodyBwZXJmb3JtYW5jZSIuCgpXZWxsLCBqdXN0IGNvdW50IHRoZSBudW1iZXIgb2Yg cGFnZSB0YWJsZSBlbnRyaWVzIGFuZCB0aGF0IG9mIHRoZQpyZXN1bHRpbmcgaHlwZXJjYWxsIGNv bnRpbnVhdGlvbnMuIEl0J3MgdGhlIHNoZWVyIGFtb3VudCBvZiB3b3JrCnRoYXQncyBjYXVzaW5n IHRoZSBzbG93bmVzcywgdG9nZXRoZXIgd2l0aCB0aGUgbmVlZCBmb3IgdXMgdG8gdXNlCmNvbnRp bnVhdGlvbnMgdG8gYmUgb24gdGhlIHNhZmUgc2lkZS4gVGhlcmUgbWF5IHdlbGwgYmUgcmVkdW5k YW50ClRMQiBpbnZhbGlkYXRpb25zIGFzIHdlbGwuIFNpbmNlIHdlIGNhbiBkbyBiZXR0ZXIgKGJ5 IHVzaW5nIGxhcmdlCnBhZ2VzKSBJIHdvdWxkbid0IGNhbGwgdGhpcyAibGltaXRlZCBieSBodyBw ZXJmb3JtYW5jZSIsIGJ1dCBvZgpjb3Vyc2Ugb25lIG1heS4KCkphbgoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApY ZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==