From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roger Pau =?utf-8?B?TW9ubsOp?= Subject: Re: [PATCH v5 6/6] amd/iommu: skip bridge devices when updating IOMMU page tables Date: Thu, 22 Nov 2018 13:47:44 +0100 Message-ID: <20181122124744.ekm2wappzsod2opb@mac> References: <20181120160153.45259-1-roger.pau@citrix.com> <20181120160153.45259-7-roger.pau@citrix.com> <5BF43A1902000078001FE31E@prv1-mh.provo.novell.com> <20181120232627.GA31051@amd.com> <5BF523A002000078001FE537@prv1-mh.provo.novell.com> <20181121103744.pw6qiwasi6qsu63d@mac> <5BF53A5A02000078001FE684@prv1-mh.provo.novell.com> <20181121115131.wjpmhjsnesfdw2c4@mac> <5BF55C5202000078001FE816@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1gPoOg-0003c5-Lt for xen-devel@lists.xenproject.org; Thu, 22 Nov 2018 12:47:54 +0000 Content-Disposition: inline In-Reply-To: <5BF55C5202000078001FE816@prv1-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: xen-devel , Brian Woods , Suravee Suthikulpanit List-Id: xen-devel@lists.xenproject.org T24gV2VkLCBOb3YgMjEsIDIwMTggYXQgMDY6MjM6MzBBTSAtMDcwMCwgSmFuIEJldWxpY2ggd3Jv dGU6Cj4gPj4+IE9uIDIxLjExLjE4IGF0IDEyOjUxLCA8cm9nZXIucGF1QGNpdHJpeC5jb20+IHdy b3RlOgo+ID4gT24gV2VkLCBOb3YgMjEsIDIwMTggYXQgMDM6NTg6MzRBTSAtMDcwMCwgSmFuIEJl dWxpY2ggd3JvdGU6Cj4gPj4gPj4+IE9uIDIxLjExLjE4IGF0IDExOjM3LCA8cm9nZXIucGF1QGNp dHJpeC5jb20+IHdyb3RlOgo+ID4+ID4gT24gV2VkLCBOb3YgMjEsIDIwMTggYXQgMDI6MjE6MzZB TSAtMDcwMCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4gPj4gPj4gPj4+IE9uIDIxLjExLjE4IGF0IDAw OjI2LCA8QnJpYW4uV29vZHNAYW1kLmNvbT4gd3JvdGU6Cj4gPj4gPj4gPiBUaGUgb3JpZ2luYWwg Y29tbWl0IDBhZjQzODc1N2Q0NTVmOGViNmI1YTZhZTlhOTkwYWUyNDVmMjMwZmQKPiA+PiA+PiA+ IAo+ID4+ID4+ID4gVGhlIGNvbW1pdCB0aGF0IGFkZHMgaXNfaGFyZHdhcmVfZG9tYWluIChhbmQg cmVhcnJhbmdlIHRoaW5ncykKPiA+PiA+PiA+IDdjMjc1NTQ5ZjQ2YzVjNDY2MTE1OTJmNzEwN2Mx MzQ1ZTkzZWQ0NTcKPiA+PiA+PiA+IAo+ID4+ID4+ID4gVGhlIG9yZ2luYWwgY29tbWl0IHVzZWQg dGhlIGZ1bmN0aW9uIGxpa2UKPiA+PiA+PiA+IHNldHVwX2RvbTBfcGNpX2RldmljZXMoZCwgYW1k X2lvbW11X3NldHVwX2RvbTBfZGV2aWNlKTsKPiA+PiA+PiA+IHdoaWNoIHdhcyBiZWNhdXNlIElP TU1VIG5lZWRlZCB0byBza2lwIHRoZSBob3N0IGJyaWRnZSBkZXZpY2VzIG9uIGRvbTAuCj4gPj4g Pj4gPiAKPiA+PiA+PiA+IFNvIEkgYXNzdW1lIHlvdSBhZGRlZCB0aGUgaXNfaGFyZHdhcmVfZG9t YWluIGJlY2F1c2UgaXQgb25seSBuZWVkZWQgdG8KPiA+PiA+PiA+IGJlIGRvbmUgb24gZG9tMC4g IEknbSBub3QgZmFtaWxpYXIgd2l0aCB0aGUgSU9NTVUvUENJIGhpc3Rvcnkgd3J0IHRvCj4gPj4g Pj4gPiB3aGF0IGl0IG1hcHBlZC9wYXNzZWQgdGhyb3VnaCBzby4KPiA+PiA+PiAKPiA+PiA+PiBX ZWxsLCBJIGFkZGVkIGl0IHByZXN1bWFibHkgdG8gcmV0YWluIG9yaWdpbmFsIHNlbWFudGljcy4g SSBzdGlsbAo+ID4+ID4+IHRoaW5rIHRoYXQgdGhlIGV4dHJhIGNoZWNrIHdvdWxkIGJldHRlciBi ZSBkcm9wcGVkIHRoZXJlLCBub3QKPiA+PiA+PiB0aGUgbGVhc3QgdG8gYWxzbyBjb3ZlciB0aGUg Y2FzZSBvZiBkZXZpY2VzIGV2ZW50dWFsbHkgZ2V0dGluZwo+ID4+ID4+IGFzc2lnbmVkIHRvIGRv bV94ZW4uCj4gPj4gPj4gCj4gPj4gPj4gTG9va2luZyBhdCB0aGlzIGFub3RoZXIgdGltZSBJIGZp bmQgc29tZSBvdGhlciBxdWVzdGlvbmFibGUKPiA+PiA+PiBhc3BlY3QgdGhvdWdoIChib3RoIHRv IHByZS1leGlzdGluZyBjb2RlIGFuZCB0byB0aGUgY2hhbmdlCj4gPj4gPj4gbWFkZSBoZXJlKTog Imhvc3QgYnJpZGdlIiAhPSAiYnJpZGdlIi4gVGhlIHRpdGxlIGhlcmUgYXMgbXVjaAo+ID4+ID4+ IGFzIHRoZSBjb21tZW50IG5leHQgdG8gdGhlIG9yaWdpbmFsIHBpZWNlIG9mIGNvZGUgYm90aAo+ ID4+ID4+IHN1Z2dlc3QgdGhlIHdpZGVyIGdlbmVyYWwgY2F0ZWdvcnkgaXMgbWVhbnQsIGJ1dCB0 aGUgY29kZQo+ID4+ID4+IGNsb25lZCBjaGVja3MgZm9yIGhvc3QgYnJpZGdlcyBvbmx5LiBJbgo+ ID4+ID4+IGFtZF9pb21tdV9hZGRfZGV2aWNlKCkgdGhlIGNoZWNrIGlzIHVzZWQgc29sZWx5IHRv IGVtaXQgYQo+ID4+ID4+IGxlc3Mgc2NhcnkgbG9nIG1lc3NhZ2UsIGJ1dCB0aGUgY2hhbmdlIGhl cmUgZ29lcyBiZXlvbmQKPiA+PiA+PiB0aGF0Lgo+ID4+ID4gCj4gPj4gPiBUaGUgY2hlY2sgaW4g YW1kX2lvbW11X2FkZF9kZXZpY2UgYWxsb3dzIGhvc3QgYnJpZGdlIGRldmljZXMgdG8gYmUKPiA+ PiA+IGFzc2lnbmVkIHRvIHRoZSBoYXJkd2FyZSBkb21haW4gd2l0aG91dCByZXR1cm5pbmcgYW4g ZXJyb3Igc2luY2UgdGhleQo+ID4+ID4gYXJlIG5vdCBiZWhpbmQgYW4gSU9NTVUuIE5vdGUgdGhh dCBldmVuIGlmIGFtZF9pb21tdV9hZGRfZGV2aWNlCj4gPj4gPiByZXR1cm5lZCBhbiBlcnJvciB0 aGUgZGV2aWNlIHdvdWxkIHN0aWxsIGJlIGFkZGVkIHRvIHRoZSBoYXJkd2FyZQo+ID4+ID4gZG9t YWluIHNpbmNlIHRoZSBlcnJvciBpcyBlYXRlbiBieSBzZXR1cF9vbmVfaHdkb21fZGV2aWNlIGFu ZCB0aGUKPiA+PiA+IGRldmljZSBpcyBhc3NpZ25lZCB0byB0aGUgaGFyZHdhcmUgZG9tYWluIHJl Z2FyZGxlc3MuCj4gPj4gCj4gPj4gSGVuY2UgbWUgc2F5aW5nIHRoaXMgY2hlY2sgaXMgbWFpbmx5 L2p1c3QgdG8gbWFrZSB0aGUgbG9nIG1lc3NhZ2UKPiA+PiBsZXNzIHNjYXJ5Lgo+ID4+IAo+ID4+ ID4gU28gZWl0aGVyIGFsbCBkZXZpY2VzIHRoYXQgYXJlIG5vdCBiZWhpbmQgYW4gSU9NTVUgYXJl IG5vdCBhc3NpZ25lZCB0bwo+ID4+ID4gdGhlIGhhcmR3YXJlIGRvbWFpbiwgb3IgdXBkYXRlX3Bh Z2luZ19tb2RlIG5lZWRzIHRoaXMgd29ya2Fyb3VuZCBpbgo+ID4+ID4gb3JkZXIgdG8gYmUgYWJs ZSB0byBoYW5kbGUgSU9NTVUgcGFnZSB0YWJsZSBleHBhbnNpb24gZm9yIHRoZSBoYXJkd2FyZQo+ ID4+ID4gZG9tYWluLgo+ID4+IAo+ID4+IEl0IGxvb2tzIGxpa2Ugd2UncmUgdGFsa2luZyBhYm91 dCBkaWZmZXJlbnQgYXNwZWN0czogSSBkb24ndCBwdXQgdW5kZXIKPiA+PiBxdWVzdGlvbiB0aGF0 IGFzc2lnbm1lbnQgd2FudHMgdG8gYmUgYXZvaWRlZC4gV2hhdCBJIHF1ZXN0aW9uIGlzCj4gPj4g d2h5IHRoZSBhdm9pZGFuY2UgZ2V0cyByZXN0cmljdGVkIHRvIHRoZSBoYXJkd2FyZSBkb21haW4u Cj4gPiAKPiA+IE5vdCBoYXZpbmcgd3JpdHRlbiB0aGlzIGNvZGUgSSBjYW4gb25seSBtYWtlIGd1 ZXNzZXMuIEkgd291bGQgc2F5IHRoaXMKPiA+IGlzIGJlY2F1c2UgeW91IGRvbid0IHdhbnQgdG8g aGFuZCBhIFBDSSBob3N0IGJyaWRnZSB0byBhIGd1ZXN0IHNvIGl0Cj4gPiBjYW5ub3QgcGxheSB3 aXRoIHRoZSByZWdpc3RlcnMgdGhlcmUgYW5kIGxpa2VseSBtb3ZlIHRoZSBNQ0ZHIG9yIHRoZQo+ ID4gTU1JTyB3aW5kb3dzLgo+IAo+IFRoYXQncyBhbGwgY29ycmVjdCwgYnV0IG9ubHkgaW5kaXJl Y3RseSByZWxhdGVkLiBUaGUgcXVlc3Rpb24gaXMgd2hhdCdzCj4gd3Jvbmcgd2hlbiB0aGUgY29u ZGl0aW9uYWxzIChib3RoIHlvdXJzIGFuZCB0aGUgb25lIHlvdSBkZXJpdmUKPiBmcm9tKSBoYXZl IHRoZSBpc19oYXJkd2FyZV9kb21haW4oKSBwYXJ0IGRyb3BwZWQuCgpJIHRoaW5rIHRoZSBpc19o YXJkd2FyZV9kb21haW4gcGFydCBjYW4gYmUgZHJvcHBlZCBmcm9tIHRoZQpjb25kaXRpb25hbCBJ J20gYWRkaW5nLiB1cGRhdGVfcGFnaW5nX21vZGUgc2hvdWxkbid0IGJlIHVzZWQgdG8gZGVjaWRl CndoZXRoZXIgYSBkb21haW4gY2FuIG9yIGNhbm5vdCBoYXZlIGJyaWRnZXMgYXR0YWNoZWQuIFdo ZXRoZXIgYSBEb21VCmNhbiBvciBjYW5ub3QgaGF2ZSBhIGhvc3QgYnJpZGdlIGFzc2lnbmVkIHNo b3VsZCBiZSBkZWNpZGVkIGF0CmFzc2lnbmF0aW9uIHRpbWUsIGFuZCBoZW5jZSB1cGRhdGVfcGFn aW5nX21vZGUgc2hvdWxkbid0IGhhdmUgaGFyZHdhcmUKZG9tYWluIHNwZWNpZmljIGNoZWNrcy4K ClJlZ2FyZGluZyB0aGUgY2hlY2sgaW4gYW1kX2lvbW11X2FkZF9kZXZpY2UsIGlmIGl0J3MgcmVt b3ZlZCBmcm9tCnRoZXJlIGFtZF9pb21tdV9hZGRfZGV2aWNlIHdvdWxkIHJldHVybiBhbiBlcnJv ciB3aGVuIGFkZGluZyBhIGhvc3QKYnJpZGdlIGRldmljZSwgYW5kIHRoYXQgd291bGQgY2F1c2Ug c2V0dXBfb25lX2h3ZG9tX2RldmljZSB0byByZXR1cm4KZWFybHkgYW5kIG5vdCBzZXR1cCB2UENJ IGhhbmRsZXJzIGZvciBob3N0IGJyaWRnZXMsIHNvIEkgdGhpbmsgd2Ugd2FudAp0byBsZWF2ZSB0 aGF0IG9uZSBhcy1pcy4KClRoYW5rcywgUm9nZXIuCgpfX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBs aXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4v bGlzdGluZm8veGVuLWRldmVs