From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: [PATCH v4 0/5] [PATCH v3 0/5] Improve non-"safe" MSR access failure handling Date: Mon, 14 Mar 2016 10:32:13 -0400 Message-ID: <56E6CB6D.5080906__35809.7799857662$1457966108$gmane$org@oracle.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Andy Lutomirski , X86 ML Cc: KVM list , Peter Zijlstra , Arjan van de Ven , "linux-kernel@vger.kernel.org" , xen-devel , Borislav Petkov , Paolo Bonzini , Andrew Morton , Linus Torvalds List-Id: xen-devel@lists.xenproject.org T24gMDMvMTIvMjAxNiAwMTowOCBQTSwgQW5keSBMdXRvbWlyc2tpIHdyb3RlOgo+IFNldHRpbmcg Q09ORklHX1BBUkFWSVJUPXkgaGFzIGFuIHVuaW50ZW5kZWQgc2lkZSBlZmZlY3Q6IGl0IHNpbGVu dGx5Cj4gdHVybnMgYWxsIHJkbXNyIGFuZCB3cm1zciBvcGVyYXRpb25zIGludG8gdGhlIHNhZmUg dmFyaWFudHMgd2l0aG91dAo+IGFueSBjaGVja3MgdGhhdCB0aGUgb3BlcmF0aW9ucyBhY3R1YWxs eSBzdWNjZWVkLgo+Cj4gV2l0aCBDT05GSUdfUEFSQVZJUlQ9biwgdW5jaGVja2VkIE1TUiBmYWls dXJlcyBPT1BTIGFuZCBwcm9iYWJseQo+IGNhdXNlIGJvb3QgdG8gZmFpbCBpZiB0aGV5IGhhcHBl biBiZWZvcmUgaW5pdCBzdGFydHMuCj4KPiBOZWl0aGVyIGJlaGF2aW9yIGlzIHZlcnkgZ29vZCwg YW5kIGl0J3MgcGFydGljdWxhcmx5IHVuZm9ydHVuYXRlIHRoYXQKPiB0aGUgYmVoYXZpb3IgY2hh bmdlcyBkZXBlbmRpbmcgb24gQ09ORklHX1BBUkFWSVJULgo+Cj4gSW4gcGFydGljdWxhciwgS1ZN IGd1ZXN0cyBtaWdodCBiZSB1bndpdHRpbmdseSBkZXBlbmRpbmcgb24gdGhlCj4gUEFSQVZJUlQ9 eSBiZWhhdmlvciBiZWNhdXNlIENPTkZJR19LVk1fR1VFU1QgY3VycmVudGx5IGRlcGVuZHMgb24K PiBDT05GSUdfUEFSQVZJUlQsIGFuZCwgYmVjYXVzZSBhY2Nlc3NlcyBpbiB0aGF0IGNhc2UgYXJl IGNvbXBsZXRlbHkKPiB1bmNoZWNrZWQsIHdlIHdvdWxkbid0IGV2ZW4gc2VlIGEgd2FybmluZy4K Pgo+IFRoaXMgc2VyaWVzIGNoYW5nZXMgdGhlIG5hdGl2ZSBiZWhhdmlvciwgcmVnYXJkbGVzcyBv Zgo+IENPTkZJR19QQVJBVklSVC4gIEEgbm9uLSJzYWZlIiBNU1IgZmFpbHVyZSB3aWxsIGdpdmUg YW4gaW5mb3JtYXRpdmUKPiB3YXJuaW5nIG9uY2UgYW5kIHdpbGwgYmUgZml4ZWQgdXAgLS0gbmF0 aXZlX3JlYWRfbXNyIHdpbGwgcmV0dXJuCj4gemVybywgYW5kIGJvdGggcmVhZHMgYW5kIHdyaXRl cyB3aWxsIGNvbnRpbnVlIHdoZXJlIHRoZXkgbGVmdCBvZmYuCj4KPiBJZiBwYW5pY19vbl9vb3Bz IGlzIHNldCwgdGhleSB3aWxsIHN0aWxsIE9PUFMgYW5kIHBhbmljLgo+Cj4gQnkgdXNpbmcgdGhl IHNoaW55IG5ldyBjdXN0b20gZXhjZXB0aW9uIGhhbmRsZXIgaW5mcmFzdHJ1Y3R1cmUsCj4gdGhl cmUgc2hvdWxkIGJlIG5vIG92ZXJoZWFkIG9uIHRoZSBzdWNjZXNzIHBhdGhzLgo+Cj4gSSBkaWRu J3QgY2hhbmdlIHRoZSBiZWhhdmlvciBvbiBYZW4sIGJ1dCwgd2l0aCB0aGlzIHNlcmllcyBhcHBs aWVkLAo+IGl0IHdvdWxkIGJlIHN0cmFpZ2h0Zm9yd2FyZCBmb3IgdGhlIFhlbiBtYWludGFpbmVy cyB0byBtYWtlIHRoZQo+IGNvcnJlc3BvbmRpbmcgY2hhbmdlIC0tIGtub3dsZWRnZSBvZiB3aGV0 aGVyIHRoZSBhY2Nlc3MgaXMgInNhZmUiIGlzCj4gbm93IHByb3BhZ2F0ZWQgaW50byB0aGUgcHZv cHMuCj4KPiBEb2luZyB0aGlzIGlzIHByb2JhYmx5IGEgcHJlcmVxdWlzaXRlIHRvIHNhbmVseSBk ZWNvdXBsaW5nCj4gQ09ORklHX0tWTV9HVUVTVCBhbmQgQ09ORklHX1BBUkFWSVJULCB3aGljaCB3 b3VsZCBwcm9iYWJseSBtYWtlCj4gQXJqYW4gYW5kIHRoZSByZXN0IG9mIHRoZSBDbGVhciBDb250 YWluZXJzIHBlb3BsZSBoYXBweSA6KQo+Cj4gVGhlcmUncyBhbHNvIHJvb20gdG8gcmVkdWNlIHRo ZSBjb2RlIHNpemUgb2YgdGhlICJzYWZlIiB2YXJpYW50cwo+IHVzaW5nIGN1c3RvbSBleGNlcHRp b24gaGFuZGxlcnMgaW4gdGhlIGZ1dHVyZS4KPgo+IENoYW5nZXMgZnJvbSB2MzoKPiAgIC0gV0FS Tl9PTkNFIGluc3RlYWQgb2YgV0FSTiAoSW5nbykKPiAgIC0gSW4gdGhlIHdhcm5pbmcgdGV4dCwg cy91bnNhZmUvdW5jaGVja2VkLyAoSW5nbywgc29ydCBvZikKPgo+IENoYW5nZXMgZnJvbSBlYXJs aWVyIHZlcnNpb25zOiBsb3RzIG9mIGNoYW5nZXMhCj4KPiBBbmR5IEx1dG9taXJza2kgKDUpOgo+ ICAgIHg4Ni9wYXJhdmlydDogQWRkIF9zYWZlIHRvIHRoZSByZWFkX21zciBhbmQgd3JpdGVfbXNy IFBWIGhvb2tzCj4gICAgeDg2L21zcjogQ2Fycnkgb24gYWZ0ZXIgYSBub24tInNhZmUiIE1TUiBh Y2Nlc3MgZmFpbHMgd2l0aG91dAo+ICAgICAgIXBhbmljX29uX29vcHMKPiAgICB4ODYvcGFyYXZp cnQ6IEFkZCBwYXJhdmlydF97cmVhZCx3cml0ZX1fbXNyCj4gICAgeDg2L3BhcmF2aXJ0OiBNYWtl ICJ1bnNhZmUiIE1TUiBhY2Nlc3NlcyB1bnNhZmUgZXZlbiBpZiBQQVJBVklSVD15Cj4gICAgeDg2 L21zcjogU2V0IHRoZSByZXR1cm4gdmFsdWUgdG8gemVybyB3aGVuIG5hdGl2ZV9yZG1zcl9zYWZl IGZhaWxzCj4KPiAgIGFyY2gveDg2L2luY2x1ZGUvYXNtL21zci5oICAgICAgICAgICAgfCAyMCAr KysrKysrKysrKystLS0tCj4gICBhcmNoL3g4Ni9pbmNsdWRlL2FzbS9wYXJhdmlydC5oICAgICAg IHwgNDUgKysrKysrKysrKysrKysrKysrKysrLS0tLS0tLS0tLS0tLS0KPiAgIGFyY2gveDg2L2lu Y2x1ZGUvYXNtL3BhcmF2aXJ0X3R5cGVzLmggfCAxNCArKysrKysrLS0tLQo+ICAgYXJjaC94ODYv a2VybmVsL3BhcmF2aXJ0LmMgICAgICAgICAgICB8ICA2ICsrKy0tCj4gICBhcmNoL3g4Ni9tbS9l eHRhYmxlLmMgICAgICAgICAgICAgICAgIHwgMzMgKysrKysrKysrKysrKysrKysrKysrKysrKwo+ ICAgYXJjaC94ODYveGVuL2VubGlnaHRlbi5jICAgICAgICAgICAgICB8IDI3ICsrKysrKysrKysr KysrKysrKystLQo+ICAgNiBmaWxlcyBjaGFuZ2VkLCAxMTQgaW5zZXJ0aW9ucygrKSwgMzEgZGVs ZXRpb25zKC0pCj4KCkkgZG9uJ3Qgc2VlIGFueSBpc3N1ZXMgYXMgZmFyIGFzIFhlbiBpcyBjb25j ZXJuZWQgYnV0IGxldCBtZSBydW4gdGhpcyAKdGhyb3VnaCBvdXIgbmlnaHRseS4gSSdsbCB3YWl0 IGZvciB0aGUgbmV4dCB2ZXJzaW9uICh3aGljaCBJIHRoaW5rIHlvdSAKbWlnaHQgaGF2ZSBiYXNl ZCBvbiB0aGUgY29tbWVudHMpLiBQbGVhc2UgY29weSBtZS4KCi1ib3JpcwoKX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlz dApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK