From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH v2 1/2] IOMMU/spinlock: Fix a bug found in AMD IOMMU initialization. Date: Wed, 09 Mar 2016 03:09:34 -0700 Message-ID: <56DFF65E02000078000E42B8@prv-mh.provo.novell.com> References: <1457492889-36625-1-git-send-email-quan.xu@intel.com> <1457492889-36625-2-git-send-email-quan.xu@intel.com> <945CA011AD5F084CBEA3E851C0AB28894B85CA85@SHSMSX101.ccr.corp.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <945CA011AD5F084CBEA3E851C0AB28894B85CA85@SHSMSX101.ccr.corp.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: quan.xu@intel.com Cc: dario.faggioli@citrix.com, kevin.tian@intel.com, suravee.suthikulpanit@amd.com, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org Pj4+ICJYdSwgUXVhbiIgPHF1YW4ueHVAaW50ZWwuY29tPiAwMy8wOS8xNiA4OjMyIEFNID4+Pgo+ T24gTWFyY2ggMDksIDIwMTYgMToxOXBtLCA8VGlhbiwgS2V2aW4+IHdyb3RlOgo+PiA+IEluc2lk ZSBzZXRfaW9tbXVfaW50ZXJydXB0X2hhbmRsZXIoKSwgcGNpZGV2c19sb2NrIHNlcmlhbGl6ZXMg Y2FsbHMgdG8KPj4gPiBwY2lfZ2V0X3BkZXYoKSwgd2hpY2ggZG9lcyBub3QgcmVxdWlyZSBpbnRl cnJ1cHRzIHRvIGJlIGRpc2FibGVkCj4+ID4gZHVyaW5nIGl0cyBleGVjdXRpb24uIEluIGZhY3Qs IHBjaWRldnNfbG9jayBpcyBhbHdheXMgKGV4Y2VwdCBmb3IgdGhpcwo+PiA+IGNhc2UpIHRha2Vu IHdpdGhvdXQgZGlzYWJsaW5nIGludGVycnVwdHMsIGFuZCBkaXNhYmxpbmcgdGhlbSBpbiB0aGlz Cj4+ID4gY2FzZSB3b3VsZCBtYWtlIHRoZSBCVUdfT04oKSBpbiBjaGVja19sb2NrKCkgdHJpZ2dl ciwgaWYgaXQgd2Fzbid0IGZvcgo+PiA+IHRoZSBmYWN0IHRoYXQgc3BpbmxvY2sgZGVidWdnaW5n IGNoZWNrcyBhcmUgc3RpbGwgZGlzYWJsZWQsIGR1cmluZwo+PiA+IGluaXRpYWxpemF0aW9uLCB3 aGVuIGlvbW11X3NldHVwKCkgKHdoaWNoIHRoZW4gZW5kIHVwIGNhbGxpbmcKPj4gPiBzZXRfaW9t bXVfaW50ZXJydXB0X2hhbmRsZXIoKSkgaXMgY2FsbGVkLgo+PiAKPj4gVGhlIGtleSBwcm9ibGVt IGlzIHRoYXQgd2UgbmVlZCBjb25zaXN0ZW50IGxvY2sgdXNhZ2UgaW4gYWxsIHBsYWNlcyAoZWl0 aGVyIGFsbCBpbgo+PiBJUlEtc2FmZSBvciBhbGwgaW4gSVJRLXVuc2FmZSksIHJlZ2FyZGxlc3Mg b2Ygd2hldGhlciBjaGVja19sb2NrIGlzIGFjdGl2YXRlZCBvcgo+PiBub3QgKHdoaWNoIGlzIGp1 c3QgYSBkZWJ1ZyBtZXRob2QgdG8gaGVscCBpZGVudGlmeSBzdWNoIGluY29uc2lzdGVuY3kgcHJv YmxlbSkuCj4KPklNTywgdGhpcyBpcyBub3QgdGhlIGtleSBwcm9ibGVtLCAgX19XYWl0IGZvciBE YXJpbydzIC8gSmFuJ3Mgb3BpbmlvbnNfXy4KClRoZSBpbmNvbnNpc3RlbmN5IGlzIG9uZSB3YXkg b2YgbG9vayBhdCB0aGUgcHJvYmxlbSwgc28gd2l0aCB0aGF0IGl0IGlzCmtpbmQgb2YgImtleSIu Cgo+PiBXaGF0IGFib3V0IHJldmlzZSBsaWtlIGJlbG93Pwo+PiAtLQo+PiAKPj4gcGNpZGV2c19s b2NrIHNob3VsZCBiZSBoZWxkIHdpdGggaW50ZXJydXB0IGVuYWJsZWQuCj4KPkkgYW0gbm90IHN1 cmUgZm9yIHRoaXMgcG9pbnQuCgpXZWxsLCBJJ2Qgc2F5IHNvbWV0aGluZyBsaWtlICJwY2lkZXZz X2xvY2sgZG9lc24ndCByZXF1aXJlIGludGVycnVwdHMgdG8gYmUKZGlzYWJsZWQgd2hpbGUgYmVp bmcgYWNxdWlyZWQiLgoKPj4gSG93ZXZlciB0aGVyZSByZW1haW5zIGFuCj4+IGV4Y2VwdGlvbiBp biBBTUQgSU9NTVUgY29kZSwgd2hlcmUgdGhlIGxvY2sgaXMgYWNxdWlyZWQgd2l0aCBpbnRlcnJ1 cHQKPj4gZGlzYWJsZWQuIFRoaXMgaW5jb25zaXN0ZW5jeSBjYW4gbGVhZCB0byBkZWFkbG9jay4K Pj4gCj4+IFRoZSBmaXggaXMgc3RyYWlnaHRmb3J3YXJkIHRvIHVzZSBzcGluX2xvY2sgaW5zdGVh ZC4gQWxzbyBpbnRlcnJ1cHQgaGFzIGJlZW4KPj4gZW5hYmxlZCB3aGVuIHRoaXMgZnVuY3Rpb24g aXMgaW52b2tlZCwgc28gd2UncmUgc3VyZSBjb25zaXN0ZW5jeSBhcm91bmQKPj4gcGNpZGV2c19s b2NrIGNhbiBiZSBndWFyYW50ZWVkIGFmdGVyIHRoaXMgZml4Lgo+Cj5JIHJlYWxseSBhcHByZWNp YXRlIHlvdSBzZW5kIG91dCBhIHJldmlzZWQgb25lLCBidXQgSSB0aGluayBpdCBpcyBub3Qgb25s eSBmb3IgY29uc2lzdGVuY3kuCj5fX1dhaXQgZm9yIERhcmlvJ3MgLyBKYW4ncyBvcGluaW9uc19f Lgo+Cj5UbyBiZSBob25lc3QsIHRvIG1lLCBfX215X2NoYW5nbG9nXyBpcyBjb21wbGljYXRlZC4K CkkgdGhpbmsgS2V2aW4ncyB0ZXh0IGFib3ZlIGlzIG9rYXkuIFBlcmhhcHMgd2Vha2VuIHRoZSAi Y2FuIGxlYWQgdG8gYQpkZWFkbG9jayIgc2xpZ2h0bHksIGJlY2F1c2UgdGhhdCdzIGp1c3QgYSB0 aGVvcmV0aWNhbCBjb25jZXJuLCBub3Qgb25lIHRoYXQncwpwb3NzaWJsZSBpbiBwcmFjdGljZSBv biB0aGF0IGNvZGUgcGF0aC4KCkphbgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhl bi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==