From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH] SVM: re-work VMCB sync-ing Date: Fri, 27 Apr 2018 09:52:06 -0600 Message-ID: <5AE3472602000078001BF334@prv1-mh.provo.novell.com> References: <5AE1BF9D02000078001BEC18@prv1-mh.provo.novell.com> <22c156d4-c841-654c-c181-1ba4f4d4e0ab@citrix.com> <5AE1D53402000078001BED10@prv1-mh.provo.novell.com> <5AE1F65C02000078001BEE1E@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]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1fC5fS-0001Mh-8m for xen-devel@lists.xenproject.org; Fri, 27 Apr 2018 15:52:14 +0000 In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Boris Ostrovsky Cc: Juergen Gross , Andrew Cooper , Razvan Cojocaru , Suravee Suthikulpanit , xen-devel List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDI2LjA0LjE4IGF0IDE5OjI3LCA8Ym9yaXMub3N0cm92c2t5QG9yYWNsZS5jb20+IHdy b3RlOgo+IE9uIDA0LzI2LzIwMTggMTE6NTUgQU0sIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+PiBP biAyNi4wNC4xOCBhdCAxNzoyMCwgPGJvcmlzLm9zdHJvdnNreUBvcmFjbGUuY29tPiB3cm90ZToK Pj4+IE9uIDA0LzI2LzIwMTggMDk6MzMgQU0sIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+Pj4gLXN0 YXRpYyB2b2lkIHN2bV9zeW5jX3ZtY2Ioc3RydWN0IHZjcHUgKnYpCj4+Pj4+PiArc3RhdGljIHZv aWQgc3ZtX3N5bmNfdm1jYihzdHJ1Y3QgdmNwdSAqdiwgZW51bSB2bWNiX3N5bmNfc3RhdGUgbmV3 X3N0YXRlKQo+Pj4+Pj4gIHsKPj4+Pj4+ICAgICAgc3RydWN0IGFyY2hfc3ZtX3N0cnVjdCAqYXJj aF9zdm0gPSAmdi0+YXJjaC5odm1fc3ZtOwo+Pj4+Pj4gIAo+Pj4+Pj4gLSAgICBpZiAoIGFyY2hf c3ZtLT52bWNiX2luX3N5bmMgKQo+Pj4+Pj4gLSAgICAgICAgcmV0dXJuOwo+Pj4+Pj4gLQo+Pj4+ Pj4gLSAgICBhcmNoX3N2bS0+dm1jYl9pbl9zeW5jID0gMTsKPj4+Pj4+ICsgICAgaWYgKCBhcmNo X3N2bS0+dm1jYl9zeW5jX3N0YXRlID09IHZtY2JfbmVlZHNfdm1zYXZlICkKPj4+Pj4+ICsgICAg ICAgIHN2bV92bXNhdmUoYXJjaF9zdm0tPnZtY2IpOwo+Pj4+Pj4gIAo+Pj4+Pj4gLSAgICBzdm1f dm1zYXZlKGFyY2hfc3ZtLT52bWNiKTsKPj4+Pj4+ICsgICAgaWYgKCBhcmNoX3N2bS0+dm1jYl9z eW5jX3N0YXRlICE9IHZtY2JfbmVlZHNfdm1sb2FkICkKPj4+Pj4+ICsgICAgICAgIGFyY2hfc3Zt LT52bWNiX3N5bmNfc3RhdGUgPSBuZXdfc3RhdGU7Cj4+Pj4+IFRoaXMgaXMgc2xpZ2h0bHkgYXdr d2FyZCBmb3IgYSBjb3VwbGUgb2YgcmVhc29ucy4gIEZpcnN0LCBwYXNzaW5nCj4+Pj4+IHZtY2Jf aW5fc3luYyBpbiBmb3JnZXQgdGhlIGZhY3QgdGhhdCBhIHZtbG9hZCBpcyBuZWVkZWQuCj4+Pj4g Q2VydGFpbmx5IG5vdCAtIHRoYXQncyB0aGUgcHVycG9zZSBvZiB0aGUgaWYoKSBhcm91bmQgaXQu Cj4+Pj4KPj4+Pj4gSW4gbXkgcGF0Y2gsIEkgaW50cm9kdWNlZCBzdm1fc3luY192bWNiX2Zvcl91 cGRhdGUoKSwgcmF0aGVyIHRoYW4KPj4+Pj4gcmVxdWlyaW5nIGEgcGFyYW1ldGVyIHRvIGJlIHBh c3NlZCBpbi4gIEkgdGhpbmsgdGhpcyBpcyBhIGJldHRlciBBUEksCj4+Pj4+IGFuZCBpdCBzaHJp bmtzIHRoZSBzaXplIG9mIHRoZSBwYXRjaC4KPj4+PiBJJ20gbm90IGNvbnZpbmNlZCBvZiB0aGUg ImJldHRlciIsIGFuZCBldmVuIGxlc3Mgc28gb2YgdGhlICJzaHJpbmtzIi4gQnV0Cj4+Pj4gSSds bCB3YWl0IHRvIHNlZSB3aGF0IHRoZSBTVk0gbWFpbnRhaW5lcnMgc2F5Lgo+Pj4KPj4+IEkgdGhp bmsgYSBzaW5nbGUgZnVuY3Rpb24gaXMgYmV0dGVyLiBJbiBmYWN0LCBJIHdhcyB3b25kZXJpbmcg d2hldGhlcgo+Pj4gc3ZtX3ZtbG9hZCgpIGNvdWxkIGFsc28gYmUgZm9sZGVkIGludG8gc3ZtX3N5 bmNfdm1jYigpIHNpbmNlIGl0IGlzIGFsc28KPj4+IGEgc3luY2luZyBvcGVyYXRpb24uCj4+IFRo YXQgZG9lc24ndCBsb29rIGxpa2UgaXQgd291bGQgcHJvZHVjZSBhIHVzYWJsZSBpbnRlcmZhY2U6 IEhvdyB3b3VsZAo+PiB5b3UgZW52aXNpb24gdGhlIHN0YXRlIHRyYW5zaXRpb24gdG8gYmUgc3Bl Y2lmaWVkIGJ5IHRoZSBjYWxsZXI/IFJpZ2h0Cj4+IG5vdyB0aGUgaW50ZW5kZWQgbmV3IHN0YXRl IGdldHMgcGFzc2VkIGluLCBidXQgaW4geW91ciBtb2RlbAo+PiB2bWNiX2luX3N5bmMgY291bGQg bWVhbiBlaXRoZXIgdm1sb2FkIG9yIHZtc2F2ZSBpcyBuZWVkZWQuIFRoZQo+PiB0d28gc3ZtX3Zt bG9hZCgpIHVzZXMgcmlnaHQgbm93IHdvdWxkIHBhc3MgdGhhdCB2YWx1ZSBpbiBhZGRpdGlvbgo+ PiB0byB0aGUgc3ZtX3N5bmNfdm1jYigpIGNhbGxzIGFscmVhZHkgZG9pbmcgc28uIEFuZCB0aGUg ZnVuY3Rpb24KPj4gY291bGRuJ3QgdGVsbCB3aGF0IHRvIGRvIGZyb20gdGhlIGN1cnJlbnQgc3Rh dGUgKGlmIGl0J3MKPj4gdm1jYl9uZWVkc192bWxvYWQsIGEgbG9hZCBpcyBvbmx5IG5lZWRlZCBp biB0aGUgY2FzZXMgd2hlcmUKPj4gc3ZtX3ZtbG9hZCgpIGlzIGNhbGxlZCByaWdodCBub3cpLiBB ZGRpbmcgYSAzcmQgcGFyYW1ldGVyIG9yIGEKPj4gc2Vjb25kIGVudW0gCj4gCj4gSSB3YXMgdGhp bmtpbmcgYWJvdXQgYW5vdGhlciBlbnVtIHZhbHVlLCBlLmcuIHN5bmNfdG9fY3B1IChhbmQKPiBz eW5jX3RvX3ZtY2IgcmVwbGFjaW5nIHZtY2JfbmVlZHNfdm1zYXZlKS4KPiAKPiBUaGlzIHdpbGwg YWxsb3cgdXMgdG8gaGlkZSAodi0+YXJjaC5odm1fc3ZtLnZtY2Jfc3luY19zdGF0ZSA9PQo+IHZt Y2JfbmVlZHNfdm1sb2FkKSB0ZXN0LgoKSSdtIHN0aWxsIG5vdCBlbnRpcmVseSBjbGVhciBob3cg eW91IHdhbnQgdGhhdCB0byBsb29rIGxpa2UuIEF0IHRoZSBleGFtcGxlCm9mIHN2bV9nZXRfc2Vn bWVudF9yZWdpc3RlcigpIGFuZCBzdm1fc2V0X3NlZ21lbnRfcmVnaXN0ZXIoKSwgaG93CndvdWxk IHRoZSBzdm1fc3luY192bWNiKCkgY2FsbHMgbG9vayBsaWtlPyBJLmUuIGhvdyBkbyB5b3UgZGlz dGluZ3Vpc2gKdGhlIHN5bmNfdG9fdm1jYi90cmFuc2l0aW9uLXRvLWNsZWFuIGNhc2UgZnJvbSB0 aGUKc3luY190b192bWNiL3RyYW5zaXRpb24tdG8tZGlydHkgb25lPwoKSmFuCgoKCl9fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5n IGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJv amVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=