From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [PATCH v2 2/6] x86/xpti: don't flush TLB twice when switching to 64-bit pv context Date: Tue, 6 Mar 2018 08:02:23 +0100 Message-ID: <0d0b9c62-6375-6575-813d-974206e5925e@suse.com> References: <20180302081403.16953-1-jgross@suse.com> <20180302081403.16953-3-jgross@suse.com> <5A9D831F02000078001AEB7E@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1et6cE-0003fR-Ua for xen-devel@lists.xenproject.org; Tue, 06 Mar 2018 07:02:26 +0000 In-Reply-To: <5A9D831F02000078001AEB7E@suse.com> Content-Language: de-DE List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: andrew.cooper3@citrix.com, wei.liu2@citrix.com, xen-devel@lists.xenproject.org, Dario Faggioli List-Id: xen-devel@lists.xenproject.org T24gMDUvMDMvMTggMTc6NDksIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDAyLjAzLjE4IGF0 IDA5OjEzLCA8amdyb3NzQHN1c2UuY29tPiB3cm90ZToKPj4gQEAgLTUwOSw5ICs1MTAsMTYgQEAg dm9pZCBtYWtlX2NyMyhzdHJ1Y3QgdmNwdSAqdiwgbWZuX3QgbWZuKQo+PiAgCj4+ICB2b2lkIHdy aXRlX3B0YmFzZShzdHJ1Y3QgdmNwdSAqdikKPj4gIHsKPj4gLSAgICBnZXRfY3B1X2luZm8oKS0+ cm9vdF9wZ3RfY2hhbmdlZCA9IHRoaXNfY3B1KHJvb3RfcGd0KSAmJiBpc19wdl92Y3B1KHYpICYm Cj4+IC0gICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAhaXNfcHZfMzJiaXRf dmNwdSh2KTsKPj4gLSAgICB3cml0ZV9jcjModi0+YXJjaC5jcjMpOwo+PiArICAgIGlmICggdGhp c19jcHUocm9vdF9wZ3QpICYmIGlzX3B2X3ZjcHUodikgJiYgIWlzX3B2XzMyYml0X3ZjcHUodikg KQo+PiArICAgIHsKPj4gKyAgICAgICAgZ2V0X2NwdV9pbmZvKCktPnJvb3RfcGd0X2NoYW5nZWQg PSB0cnVlOwo+PiArICAgICAgICBhc20gdm9sYXRpbGUgKCAibW92ICUwLCAlJWNyMyIgOiA6ICJy IiAodi0+YXJjaC5jcjMpIDogIm1lbW9yeSIgKTsKPj4gKyAgICB9Cj4+ICsgICAgZWxzZQo+PiAr ICAgIHsKPj4gKyAgICAgICAgZ2V0X2NwdV9pbmZvKCktPnJvb3RfcGd0X2NoYW5nZWQgPSBmYWxz ZTsKPiAKPiBJcyB0aGlzIHdyaXRlIHJlYWxseSBuZWNlc3Nhcnk/CgpQcm9iYWJseSBub3QuIEkn bGwgZHJvcCBpdC4KCgpKdWVyZ2VuCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVu cHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZv L3hlbi1kZXZlbA==