From mboxrd@z Thu Jan 1 00:00:00 1970 From: Razvan Cojocaru Subject: Re: [PATCH for-4.12 V3] x86/altp2m: fix HVMOP_altp2m_set_domain_state race Date: Mon, 11 Feb 2019 15:46:41 +0200 Message-ID: <2806b8c2-ae3c-6f45-9c5c-dead9235ca83@bitdefender.com> References: <1549876422-22274-1-git-send-email-rcojocaru@bitdefender.com> <5C614A1B02000078002158A5@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" 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 1gtBvA-0000Dr-NW for xen-devel@lists.xenproject.org; Mon, 11 Feb 2019 13:46:52 +0000 In-Reply-To: Content-Language: en-US-large List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: Kevin Tian , Wei Liu , George Dunlap , Andrew Cooper , Jun Nakajima , xen-devel , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org T24gMi8xMS8xOSAxMjo1NyBQTSwgUmF6dmFuIENvam9jYXJ1IHdyb3RlOgo+IE9uIDIvMTEvMTkg MTI6MTAgUE0sIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+PiBPbiAxMS4wMi4xOSBhdCAxMDoxMywg PHJjb2pvY2FydUBiaXRkZWZlbmRlci5jb20+IHdyb3RlOgo+Pj4gLS0tIGEveGVuL2FyY2gveDg2 L2h2bS92bXgvdm14LmMKPj4+ICsrKyBiL3hlbi9hcmNoL3g4Ni9odm0vdm14L3ZteC5jCj4+PiBA QCAtMjE1MCwxMyArMjE1MCwxMyBAQCBzdGF0aWMgYm9vbF90IHZteF9pc19zaW5nbGVzdGVwX3N1 cHBvcnRlZCh2b2lkKQo+Pj4gwqDCoMKgwqDCoCByZXR1cm4gISFjcHVfaGFzX21vbml0b3JfdHJh cF9mbGFnOwo+Pj4gwqAgfQo+Pj4gLXN0YXRpYyB2b2lkIHZteF92Y3B1X3VwZGF0ZV9lcHRwKHN0 cnVjdCB2Y3B1ICp2KQo+Pj4gK3N0YXRpYyB2b2lkIHZteF92Y3B1X3VwZGF0ZV9lcHRwKHN0cnVj dCB2Y3B1ICp2LCBib29sIGFsdHAybV9lbmFibGVkKQo+Pj4gwqAgewo+Pj4gwqDCoMKgwqDCoCBz dHJ1Y3QgZG9tYWluICpkID0gdi0+ZG9tYWluOwo+Pj4gwqDCoMKgwqDCoCBzdHJ1Y3QgcDJtX2Rv bWFpbiAqcDJtID0gTlVMTDsKPj4+IMKgwqDCoMKgwqAgc3RydWN0IGVwdF9kYXRhICplcHQ7Cj4+ PiAtwqDCoMKgIGlmICggYWx0cDJtX2FjdGl2ZShkKSApCj4+PiArwqDCoMKgIGlmICggYWx0cDJt X2VuYWJsZWQgKQo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgIHAybSA9IHAybV9nZXRfYWx0cDJtKHYp Owo+Pj4gwqDCoMKgwqDCoCBpZiAoICFwMm0gKQo+Pj4gwqDCoMKgwqDCoMKgwqDCoMKgIHAybSA9 IHAybV9nZXRfaG9zdHAybShkKTsKPj4KPj4gV2l0aCB0aGUgY2hhbmdlIHlvdSBub3cgbWFrZSB0 byBwMm1fZ2V0X2FsdHAybSgpLCB0aGlzIGxvb2tzIHRvIGJlCj4+IGEgYmVuaWduIGNoYW5nZS4g V2hpY2ggdG8gbWUgd291bGQgc3VnZ2VzdCB0byBlaXRoZXIgbGVhdmUgdGhlIGNvZGUKPj4gYWxv bmUsIG9yIHRvIGRyb3AgdGhlIGlmKCkgKGJ1dCAtIGFnYWluIC0gbm90IGl0cyBib2R5KSBhbHRv Z2V0aGVyLiBBdAo+PiB3aGljaCBwb2ludCB0aGUgY29kZSBjb3VsZCBiZSBmdXJ0aGVyIHN0cmVh bWxpbmVkLCBhcyB0aGVuIHRoZSBOVUxMCj4+IGluaXRpYWxpemVyIGNhbiBnbyBhd2F5IGFuZCB0 aGUgYXNzaWdubWVudCAob3IgdGhlbiBwZXJoYXBzIGluaXRpYWxpemVyKQo+PiBjb3VsZCBiZWNv bWUgInAybSA9IHAybV9nZXRfYWx0cDJtKHYpID86IHAybV9nZXRfaG9zdHAybShkKSIuCj4+IChH ZW5lcmFsbHkgSSdkIHJlY29tbWVuZCB0byBsZWF2ZSBvdXQgdGhlIGNoYW5nZSBoZXJlLCBhbmQg ZG8gdGhlCj4+IHRyYW5zZm9ybWF0aW9uIGluIGEgZm9sbG93LW9uIHBhdGNoLikKPiAKPiBUaGFu a3MgZm9yIG5vdGljaW5nLCBhY3R1YWxseSB0aGlzIGFwcGVhcnMgdG8gaW52YWxpZGF0ZSB0aGUg d2hvbGUgCj4gcHVycG9zZSBvZiB0aGUgcGF0Y2ggKEkgc2hvdWxkIGhhdmUgdGVzdGVkIHRoaXMg bW9yZSBiZWZvcmUgc3VtYml0dGluZyAKPiBWMywgc29ycnkpLgo+IAo+IFRoZSB3aG9sZSBwb2lu dCBvZiB0aGUgbmV3IGJvb2xlYW4gaXMgdG8gaGF2ZSBwMm0gYXNzaWduZWQgYW4gYWx0cDJtIAo+ IHJlZ2FyZGxlc3Mgb2YgYWx0cDJtX2FjdGl2ZSgpIChoZW5jZSB0aGUgY2hhbmdlKSAtIHdoaWNo IG5vdyBubyBsb25nZXIgCj4gaGFwcGVucy4gSSBnb3QgY2FycmllZCBhd2F5IHdpdGggdGhpcyBj aGFuZ2UuCj4gCj4gVGhlIGZhY3QgdGhhdCB0aGlzIGlzIHNvIGVhc3kgdG8gZ2V0IHdyb25nIGlz IHRoZSByZWFzb24gd2h5IEkndmUgCj4gcHJlZmVycmVkIHRoZSBkb21haW5fcGF1c2UoKSBzb2x1 dGlvbi4gVGhlcmUgYXBwZWFycyB0byBiZSBubyBjbGVhbiB3YXkgCj4gdG8gZml4IHRoaXMgb3Ro ZXJ3aXNlLCBhbmQgaWYgdGhpcyBpcyBzbyBlYXN5IHRvIG1pc3VuZGVyc3RhbmQgaXQnbGwgCj4g YnJlYWsganVzdCBhcyBlYXNpbHkgd2l0aCBmdXJ0aGVyIGNoYW5nZXMuCj4gCj4gSSBzdXBwb3Nl IEkgY291bGQganVzdCBwYXNzIHRoZSBib29sIGFsb25nIHRvIHAybV9nZXRfYWx0cDJtKCkgKGFu ZCAKPiBpbmRlZWQgcmVtb3ZlIHRoZSBpZigpKS4uLgoKSSB0aGluayB0aGUgYmVzdCB0aGF0IGNh biBiZSBkb25lIGhlcmUgaXMgdG8gY2hlY2sgaWYgYWx0cDJtX2FjdGl2ZSgpIAplYXJseSBpbiBw Mm1fc3dpdGNoX3ZjcHVfYWx0cDJtX2J5X2lkKCkgYW5kIApwMm1fc3dpdGNoX2RvbWFpbl9hbHRw Mm1fYnlfaWQoKSwgdGhlbiBiYWlsIGlmIGl0J3Mgbm90IGFjdGl2ZS4gU2luY2UgCnRoZXNlIGFy ZSBvbmx5IGNhbGxlZCBieSBIVk1PUF9hbHRwMm1fKiAoYW5kIHRodXMgc2VyaWFsaXplZCBieSB0 aGUgCmRvbWFpbiBsb2NrKSwgaXQgc2hvdWxkIGJlIGVub3VnaCBXUlQgSFZNT1BfYWx0cDJtX3Nl dF9kb21haW5fc3RhdGUuCgpUaGlzIG9mIGNvdXJzZSBtZWFucyByZXZlcnRpbmcgcDJtX2dldF9h bHRwMm0oKSB0byBpdHMgb3JpZ2luYWwgCm5vbi1pbnR1aXRpdmUgc3RhdGUgb2YgcmV0dXJuaW5n IGEgdmFsaWQgYWx0cDJtIHBvaW50ZXIgZXZlbiB3aGVuIAphbHRwMm1fYWN0aXZlKCkgaXMgZmFs c2UuCgpJIHNlZSBubyBvdGhlciB3YXkgb3V0IG9mIHRoaXMgKGFzaWRlIGZyb20gdGhlIGRvbWFp bl9wYXVzZSgpIGZpeCkuCgoKVGhhbmtzLApSYXp2YW4KCl9fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVs QGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1h bi9saXN0aW5mby94ZW4tZGV2ZWw=