From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: update_runstate_area and Linux KPTI Date: Fri, 2 Mar 2018 16:04:06 +0000 Message-ID: <9fa77816-a25c-c19b-cc26-e0d28cc2e160@citrix.com> References: <3a77a293-1a29-42ed-8fc0-a74bda213b92@arm.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 1ernAN-0004E8-9X for xen-devel@lists.xenproject.org; Fri, 02 Mar 2018 16:04:15 +0000 In-Reply-To: <3a77a293-1a29-42ed-8fc0-a74bda213b92@arm.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: Julien Grall , xen-devel , Juergen Gross , Boris Ostrovsky , Jan Beulich , osstest service owner List-Id: xen-devel@lists.xenproject.org T24gMDIvMDMvMTggMTU6NTcsIEp1bGllbiBHcmFsbCB3cm90ZToKPiBIaSwKPgo+IFdoaWxlIEkg d2FzIGxvb2tpbmcgYXQgc29tZSB1bnJlbGF0ZWQgcHJvYmxlbSB3aXRoIFhlbiBBUk0gUDJNIGNv ZGUsIEkKPiBub3RpY2VkIHRoYXQgdGhlIGZ1bmN0aW9uIHVwZGF0ZV9ydW5zdGF0ZV9hcmVhIGlz IHVzaW5nIGd1ZXN0IHZpcnR1YWwKPiBhZGRyZXNzIHRvIHVwZGF0ZSB0aGUgdkNQVSBydW5zdGF0 ZS4gVGhhdCBmdW5jdGlvbiB3aWxsIGJlIGNhbGxlZCB3aGVuCj4gY29udGV4dCBzd2l0Y2ggdG8g YSB2Q1BVLiBIb3dldmVyLCB0aGF0IHZDUFUgbWF5IHJ1biBpbiB1c2Vyc3BhY2UKPiBjb250ZXh0 LiBXaGVuIEtQVEkgKGtlcm5lbCBwYWdlIHRhYmxlIGlzb2xhdGlvbikgaXMgdXNlZCwKPgo+IElu IHRoZSBiZXN0IGNhc2UsIHRoYXQgYWRkcmVzcyBpcyBub3QgbWFwcGVkIGludG8gdGhlIHBhZ2Ut dGFibGUKPiBjdXJyZW50bHkgdXNlZC4gWGVuIHdpbGwgbm90IGJlIGFibGUgdG8gdXBkYXRlIHRo ZSByZWdpb24uCj4KPiBJbiB0aGUgd29yc3QgY2FzZSwgdGhhdCBhZGRyZXNzIGlzIG1hcHBlZCB0 byBhIGRpZmZlcmVudCByZWdpb24gYW5kCj4gWGVuIHdpbGwgY29ycnVwdCBzb21lIGJpdHMgb2Yg dGhlIG1lbW9yeS4KPgo+IFRoZSBjb2RlIGxvb2tzIGZ1bmRhbWVudGFsbHkgd3Jvbmcgb24gQXJt LCBJIGFtIGVudGlyZWx5IG5vdCBzdXJlCj4gYWJvdXQgeDg2Lgo+Cj4gSXQgbG9vayBsaWtlIHRv IG1lIHRoYXQgWGVuIHNob3VsZCBhbHdheXMgdXNlIHRoZSBndWVzdCBwaHlzaWNhbAo+IGFkZHJl c3MgYW5kIHRoZXJlZm9yZSB0cmFuc2xhdGUgdGhlIHZpcnR1YWwgYWRkcmVzcyB0byBhIHBoeXNp Y2FsIG9uZQo+IGluIFZDUFVPUF9yZWdpc3Rlcl9ydW5zdGF0ZV9tZW1vcnlfYXJlYS4gU28gb25s eSB0aGUgcGh5c2ljYWwgYWRkcmVzcwo+IHdpbGwgYmUgdXNlZCBpbiB1cGRhdGVfcnVuc3RhdGVf YXJlYSBtYWtpbmcgdGhlIGZ1bmN0aW9uIG11Y2ggc2FmZXIuCj4KPiBBbnkgb3BpbmlvbiBvbiB0 aGlzIGFwcHJvYWNoPwoKQWxsIHRoZSBYZW4gaW50ZXJmYWNlcyBsaWtlIHRoaXMgYnVpbHQgdXBv biBsaW5lYXIgKHZpcnR1YWwpIGFkZHJlc3NlcwphcmUgZnVuZGFtZW50YWxseSB3cm9uZywgYnV0 IHRoYXQgaG9yc2UgaGFzIGJvbHRlZC4KCk9uIHRoZSB4ODYgc2lkZSwgd2UndmUgZ290IGEgZ3Jv c3MgaGFjayB3aGVyZSB3ZSB0cnkgYW5kIGlnbm9yZQpwYWdlZmF1bHRzLCBsZWF2aW5nIGEgbm90 ZSB0byBjb21lIGJhY2sgYW5kIHRyeSBhZ2FpbiBsYXRlci7CoCBJdCBnZXRzCmV2ZW4gbW9yZSBj b21wbGljYXRlZCB3aXRoIFNNQVAgKFBBTiBvbiBBUk0sIGlpcmMpLgoKVGhlIHByb3BlciB3YXkg dG8gZG8gdGhpcyBpcyBpbmRlZWQgYnkgYSBub21pbmF0ZWQgKGd1ZXN0KSBwaHlzaWNhbAphZGRy ZXNzLCBhdCB3aGljaCBwb2ludCBYZW4gY2FuIG1ha2UgYWxsL2FueSB1cGRhdGVzIGF0IHRpbWVz IG9mIGl0cwpjaG9vc2luZywgYW5kIHRoZSBndWVzdHMgcGFnZXRhYmxlL3Blcm1pc3Npb25zIHN0 YXRlIGF0IGFuIGluc3RhbnRhbmVvdXMKbW9tZW50IGRvbid0IG1hdHRlci4KCklmIHlvdSd2ZSBn b3QgdGltZSB0byBkbyB0aGlzLCB0aGVuIHBsZWFzZSBkby7CoCBJdCB3aWxsIGJlIGEgZGVmaW5p dGUKaW1wcm92ZW1lbnQuCgp+QW5kcmV3CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54 ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGlu Zm8veGVuLWRldmVs