From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH v3 5/9] x86/vmx: Improvements to LBR MSR handling Date: Wed, 27 Jun 2018 10:59:53 +0100 Message-ID: <59c1f68c-3ffe-b406-93c8-67fb6edcae71@citrix.com> References: <1528483723-4128-6-git-send-email-andrew.cooper3@citrix.com> <1530089004-32155-1-git-send-email-andrew.cooper3@citrix.com> <5B3354F002000078001CE3D9@prv1-mh.provo.novell.com> <5166a3b7-fc47-cbc7-a850-d0b1dc186175@citrix.com> <5B335FC902000078001CE442@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <5B335FC902000078001CE442@prv1-mh.provo.novell.com> Content-Language: en-GB 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 , Xen-devel , Wei Liu , Jun Nakajima , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org T24gMjcvMDYvMTggMTA6NTgsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDI3LjA2LjE4IGF0 IDExOjUwLCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JvdGU6Cj4+IE9uIDI3LzA2LzE4 IDEwOjEyLCBKYW4gQmV1bGljaCB3cm90ZToKPj4+Pj4+IE9uIDI3LjA2LjE4IGF0IDEwOjQzLCA8 YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3JvdGU6Cj4+Pj4gVGhlIG1haW4gcHVycG9zZSBv ZiB0aGlzIHBhdGNoIGlzIHRvIG9ubHkgZXZlciBpbnNlcnQgdGhlIExCUiBNU1JzIGludG8gdGhl Cj4+Pj4gZ3Vlc3QgbG9hZC9zYXZlIGxpc3Qgb25jZSwgYXMgYSBmdXR1cmUgcGF0Y2ggd2FudHMg dG8gY2hhbmdlIHRoZSBiZWhhdmlvdXIgCj4+IG9mCj4+Pj4gdm14X2FkZF9ndWVzdF9tc3IoKS4K Pj4+Pgo+Pj4+IFRoZSByZXBlYXRlZCBwcm9jZXNzaW5nIG9mIGxicl9pbmZvIGFuZCB0aGUgZ3Vl c3RzIE1TUiBsb2FkL3NhdmUgbGlzdCBpcwo+Pj4+IHJlZHVuZGFudCwgYW5kIGEgZ3Vlc3QgdXNp bmcgTEJSIGl0c2VsZiB3aWxsIGhhdmUgdG8gcmUtZW5hYmxlCj4+Pj4gTVNSX0RFQlVHQ1RMLkxC UiBpbiBpdHMgI0RCIGhhbmRsZXIsIG1lYW5pbmcgdGhhdCBYZW4gd2lsbCByZXBlYXQgdGhpcwo+ Pj4+IHJlZHVuZGFudCBwcm9jZXNzaW5nIGV2ZXJ5IHRpbWUgdGhlIGd1ZXN0IGdldHMgYSBkZWJ1 ZyBleGNlcHRpb24uCj4+Pj4KPj4+PiBSZW5hbWUgbGJyX2ZpeHVwX2VuYWJsZWQgdG8gbGJyX2Zs YWdzIHRvIGJlIGEgbGl0dGxlIG1vcmUgZ2VuZXJpYywgYW5kIHVzZSBvbmUKPj4+PiBiaXQgdG8g aW5kaWNhdGUgdGhhdCB0aGUgTVNScyBoYXZlIGJlZW4gaW5zZXJ0ZWQgaW50byB0aGUgbG9hZC9z YXZlIGxpc3QuCj4+Pj4gU2hvcnRlbiB0aGUgZXhpc3RpbmcgRklYVVAqIGlkZW50aWZpZXJzIHRv IHJlZHVjZSBjb2RlIHZvbHVtZS4KPj4+Pgo+Pj4+IEZ1cnRoZXJtb3JlLCBoYW5kaW5nIHRoZSBn dWVzdCAjTUMgb24gYW4gZXJyb3IgaXNuJ3QgYSBsZWdpdGltYXRlIGFjdGlvbi4gIFR3bwo+Pj4+ IG9mIHRoZSB0aHJlZSBmYWlsdXJlIGNhc2VzIGFyZSBkZWZpbml0ZWx5IGh5cGVydmlzb3IgYnVn cywgYW5kIHRoZSB0aGlyZCBpcyBhCj4+Pj4gYm91bmRhcnkgY2FzZSB3aGljaCBzaG91bGRuJ3Qg b2NjdXIgaW4gcHJhY3RpY2UuICBUaGUgZ3Vlc3QgYWxzbyB3b24ndCBleGVjdXRlCj4+Pj4gY29y cmVjdGx5LCBzbyBoYW5kbGUgZXJyb3JzIGJ5IGNsZWFubHkgY3Jhc2hpbmcgdGhlIGd1ZXN0Lgo+ Pj4+Cj4+Pj4gU2lnbmVkLW9mZi1ieTogQW5kcmV3IENvb3BlciA8YW5kcmV3LmNvb3BlcjNAY2l0 cml4LmNvbT4KPj4+IFJldmlld2VkLWJ5OiBKYW4gQmV1bGljaCA8amJldWxpY2hAc3VzZS5jb20+ Cj4+PiB3aXRoIG9uZSBtaW5vciByZW1hcms6Cj4+Pgo+Pj4+IEBAIC0zMDk3LDMwICszMDk4LDY0 IEBAIHN0YXRpYyBpbnQgdm14X21zcl93cml0ZV9pbnRlcmNlcHQodW5zaWduZWQgaW50IG1zciwg dWludDY0X3QgbXNyX2NvbnRlbnQpCj4+Pj4gICAgICAgICAgICAgIGlmICggdnBtdV9kb193cm1z cihtc3IsIG1zcl9jb250ZW50LCBzdXBwb3J0ZWQpICkKPj4+PiAgICAgICAgICAgICAgICAgIGJy ZWFrOwo+Pj4+ICAgICAgICAgIH0KPj4+PiAtICAgICAgICBpZiAoIG1zcl9jb250ZW50ICYgSUEz Ml9ERUJVR0NUTE1TUl9MQlIgKQo+Pj4+ICsKPj4+PiArICAgICAgICAvKgo+Pj4+ICsgICAgICAg ICAqIFdoZW4gYSBndWVzdCBmaXJzdCBlbmFibGVzIExCUiwgYXJyYW5nZSB0byBzYXZlIGFuZCBy ZXN0b3JlIHRoZSBMQlIKPj4+PiArICAgICAgICAgKiBNU1JzIGFuZCBhbGxvdyB0aGUgZ3Vlc3Qg ZGlyZWN0IGFjY2Vzcy4KPj4+PiArICAgICAgICAgKgo+Pj4+ICsgICAgICAgICAqIE1TUl9ERUJV R0NUTCBhbmQgTEJSIGhhcyBleGlzdGVkIGFsbW9zdCBsb25nIGFzIE1TUnMgaGF2ZSBleGlzdGVk LAo+Pj4gLi4uIGFzIGxvbmcgYXMgLi4uCj4+IE5vdCBxdWl0ZS4gIE1TUnMgaGF2ZSBleGlzdGVk IHNpbmNlIHRoZSBQNSwgd2hlcmVhcyBMQlIgd2FzIGludHJvZHVjZWQKPj4gaW4gdGhlIFA2LiAg VGhlIE1TUiB3YXNuJ3QgYXJjaGl0ZWN0dXJhbCBhdCB0aGUgdGltZSwgaGVuY2Ugbm8gQ1BVSUQK Pj4gYml0LCBidXQgdGhlIG5ld2VyIGFyY2hpdGVjdHVyYWwgZGVjbGFyYXRpb24gaXMgY29tcGF0 aWJsZSB3aXRoIHRoZSBQNgo+PiAoYXMgZmFyIGFzIExCUiBpcyBjb25jZXJuZWQpLgo+IFBlcmhh cHMgYSBtaXN1bmRlcnN0YW5kaW5nIHJlc3VsdGluZyBmcm9tIGFuIGFtYmlndWl0eSBpbiBteSBy ZXBseT8gSQo+IHNob3VsZCBoYXZlIHNhaWQgIi4uLiBhbG1vc3QgYXMgbG9uZyBhcyAuLi4iOyBJ IGRpZG4ndCBtZWFuIGZvciB0aGUgImFsbW9zdCIKPiB0byBiZSBkcm9wcGVkLgoKT29wcyB5ZXMg LSB5b3UncmUgcmlnaHQuwqAgSSdsbCBmaXggdGhhdC4KCn5BbmRyZXcKCl9fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QK WGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5v cmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2ZWw=