From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH RFC] x86/HVM: also stuff RSB upon exit to guest Date: Tue, 04 Sep 2018 01:37:35 -0600 Message-ID: <5B8E363F02000078001E4F56@prv1-mh.provo.novell.com> References: <5B5B2A3E02000078001D8810@prv1-mh.provo.novell.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 4.89) (envelope-from ) id 1fx5uB-0000Te-D5 for xen-devel@lists.xenproject.org; Tue, 04 Sep 2018 07:37:43 +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: Andrew Cooper Cc: xen-devel List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDAzLjA5LjE4IGF0IDE4OjIwLCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4gd3Jv dGU6Cj4gT24gMjcvMDcvMTggMTU6MjAsIEphbiBCZXVsaWNoIHdyb3RlOgo+PiBJbiBvcmRlciB0 byBtb3N0bHkgZWxpbWluYXRlIGFidXNlIG9mIHdoYXQgWGVuIGxlYXZlcyBpbiB0aGUgUlNCIGJ5 Cj4+IGd1ZXN0IGxldmVsIGF0dGFja2VycywgZmlsbCB0aGUgUlNCIHdpdGggYWxtb3N0LU5VTEwg cG9pbnRlcnMgcmlnaHQKPj4gYmVmb3JlIGVudGVyaW5nIGd1ZXN0IGNvbnRleHQuCj4gCj4gSG93 IGRvIHlvdSBlbnZpc2FnZSBhbiBhdHRhY2tlciB1c2luZyB3aGF0IFhlbiBsZWF2ZXMgaW4gdGhl IFJTQj8gIEFuCj4gYXR0YWNrZXIgZG9lc24ndCBoYXZlIG11Y2gvYW55IGNvbnRyb2wgb2YgdGhl IGNhbGxncmFwaCBYZW4gbWFrZXMuCgpKdXN0IHV0aWxpemUgb2NjYXNpb25hbCBvdmVybGFwcyBi ZXR3ZWVuIFhlbiBhbmQgZ3Vlc3Qga2VybmVsIGFkZHJlc3Nlcy4KCj4+IFRCRDogT2J2aW91c2x5 IHVzaW5nIE5VTEwgaGVyZSBoYXMgdGhlIGRvd25zaWRlIG9mIHJlYWRzIHRocm91Z2ggTlVMTAo+ PiAgICAgIG5vdCBnb2luZyB0byBmYXVsdCBhbnltb3JlLgo+IAo+IFRoaXMgYWxvbmUgaXMgc3Vm ZmljaWVudCBqdXN0aWZpY2F0aW9uIHRvIG5vdCB1c2UgdGhpcyByb3V0ZS4gIElkZWFsbHksCj4g d2Ugc2hvdWxkIGhhdmUgbm8gbWFwcGluZ3Mgd2l0aGluIGRpc3AzMiBvZiAwLgo+IAo+IEluIHBy aW5jaXBsZSwgdGhlcmUgYXJlIG90aGVyIGJldHRlciBhZGRyZXNzZXMgd2hpY2ggY291bGQgYmUg dXNlZCwgc3VjaAo+IGFzIHRoZSBwYWdlIGltbWVkaWF0ZWx5IGJlbG93IHRoZSBjYW5vbmljYWwg Ym91bmRhcnksIG9yIFRTRUcvSFNFRywgYnV0Li4uCgpJaXJjIHRoZXJlIHdhcyBhdCBsZWFzdCBv bmUgZXJyYXR1bSByZXF1aXJpbmcgbm8gbWFwcGluZyByaWdodApiZWxvdyB0aGUgY2Fub25pY2Fs IGJvdW5kYXJ5LgoKQXMgdG8gVFNFRy9IU0VHIC0gdGhleSBhcmUgcGh5c2ljYWwgYWRkcmVzc2Vz LCBhcmVuJ3QgdGhleT8KCj4+ICsKPj4gKyAgICAgICAgcHRyID0gX19tYXBfZG9tYWluX3BhZ2Uo cGcpOwo+PiArICAgICAgICBtZW1zZXQocHRyLCAtMSwgUEFHRV9TSVpFKTsKPj4gKyAgICAgICAg bWVtY3B5KHB0ciArIGFkZHIsIGRvX292ZXJ3cml0ZV9yc2IsIHNpemUpOwo+PiArICAgICAgICB1 bm1hcF9kb21haW5fcGFnZShwdHIpOwo+PiArCj4+ICsgICAgICAgIHNtcF93bWIoKTsKPiAKPiBX aGF0IGlzIHRoaXMgYmFycmllciBmb3I/CgpUbyBtYWtlIHN1cmUgZXZlcnl0aGluZyBhaGVhZCBv ZiBpdCBoYXBwZW5zIGJlZm9yZSAuLi4KCj4+ICsgICAgICAgIGh2bV9vdmVyd3JpdGVfcnNiID0g KHZvaWQgKilhZGRyOwoKLi4uIHRoaXMgYXNzaWdubWVudC4KCj4+IC0tLSBhL3hlbi9pbmNsdWRl L2FzbS14ODYvc3BlY19jdHJsX2FzbS5oCj4+ICsrKyBiL3hlbi9pbmNsdWRlL2FzbS14ODYvc3Bl Y19jdHJsX2FzbS5oCj4+IEBAIC0yNDksNiArMjQ5LDggQEAKPj4gIAo+PiAgLyogVXNlIHdoZW4g ZXhpdGluZyB0byBIVk0gZ3Vlc3QgY29udGV4dC4gKi8KPj4gICNkZWZpbmUgU1BFQ19DVFJMX0VY SVRfVE9fSFZNICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIFwKPj4g KyAgICBtb3YgaHZtX292ZXJ3cml0ZV9yc2IoJXJpcCksICVyY3g7ICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIFwKPj4gKyAgICBBTFRFUk5BVElWRSAiIiwgIklORElSRUNUX0NBTEwg JXJjeCIsIFg4Nl9GRUFUVVJFX1NDX1JTQl9IVk07ICAgICAgIFwKPiAKPiAuLi4gdGhlcmUgYXJl IHR3byByZWFzb25zIHdoeSBJIGRpZG4ndCBkbyBhbnkgUlNCIHN0dWZmaW5nIGFsb25nIHRoZXNl Cj4gbGluZXMuCj4gCj4gRmlyc3QsIHRoaXMgaXMgcmFjeSB3aXRoIE5NSXMvZXRjLgoKVGhpcyBp cyB1bmRlcnN0b29kLCBhbmQgY291bGQgZWl0aGVyIGJlIGZpeGVkIG9yIHRvbGVyYXRlZCBhcyBl dmVuCmxlc3MgY29udHJvbGxhYmxlIGJ5IGFuIGF0dGFja2VyLgoKPiBTZWNvbmRseSwgU01NIG1v ZGUgZG9lcyBleGFjdGx5IHRoZSBzYW1lIHRvIHRoZSB3aG9sZSBzeXN0ZW0gKG91dHNpZGUgb2YK PiBYZW5zIGNvbnRyb2wpIHdpdGggYSBjYWxsIHRyZWUgaW4gSFNFRy9UU0VHLgoKQW5kIHRoZXkg Y291bGQgZG8gc2ltaWxhciBzdHVmZmluZy4KCj4gT3ZlcmFsbCwgZ2l2ZW4gdGhlIGhvbGVzIGlu IHRoZSBhdmFpbGFibGUgbWVjaGFuaXNtLCBhbmQgdGhlIGZhY3QgdGhhdAo+IFhlbidzIGN1cnJl bnQgY2FsbGdyYXBoIGlzIGFjdHVhbGx5IHByZXR0eSBnb29kICh3cnQgUlNCKSBmb3IgY3VycmVu dAo+IG9wZXJhdGluZyBzeXN0ZW1zLCBJIGRpZG4ndCB0aGluayBpdCB3YXMgd29ydGggZG9pbmcg YW55dGhpbmcgc3BlY2lhbC4KCldlbGwsIG9rYXksIEkganVzdCB3YW50ZWQgdGhlIG9wdGlvbiBk aXNjdXNzZWQuIEknbGwgZHJvcCB0aGUgcGF0Y2guCgpKYW4KCgoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4t ZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9t YWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==