From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony PERARD Subject: Re: [RFC] Hypervisor, x86 emulation deprivileged Date: Tue, 5 Jul 2016 18:20:38 +0100 Message-ID: <20160705172038.GC1729@perard.uk.xensource.com> References: <20160705112227.GA1729@perard.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: George Dunlap Cc: Andrew Cooper , Paul Durrant , Jan Beulich , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org T24gVHVlLCBKdWwgMDUsIDIwMTYgYXQgMDE6NTg6MTZQTSArMDEwMCwgR2VvcmdlIER1bmxhcCB3 cm90ZToKPiBPbiBUdWUsIEp1bCA1LCAyMDE2IGF0IDEyOjIyIFBNLCBBbnRob255IFBFUkFSRAo+ IDxhbnRob255LnBlcmFyZEBjaXRyaXguY29tPiB3cm90ZToKPiA+IEhpLAo+ID4KPiA+IEkndmUg dGFrZW4gb3ZlciB0aGUgd29yayBmcm9tIEJlbiB0byBoYXZlIGEgZGVwcml2aWxlZ2VkIG1vZGUg aW4gdGhlCj4gPiBoeXBlcnZpc29yLCBidXQgSSdtIHVuc3VyZSBhYm91dCB3aGljaCBkaXJlY3Rp b24gdG8gdGFrZS4KPiA+Cj4gPiBGaXJzdCwgYWZ0ZXIgdW5kZXJzdGFuZGluZyB3aGF0IGhhdmUg YmVlbiBkb25lLCBhbmQgZml4aW5nIGEgZmV3IHRoaW5ncywKPiA+IEkgZGlkIHNvbWUgYmVuY2ht YXJrIHRvIGNvbXBhcmUgYSBzaW1wbGUgImRldmljZSIgcnVubmluZyBpbiByaW5nMCB0bwo+ID4g dGhlIHNhbWUgb25lIHJ1bm5pbmcgaW4gcmluZzMgYW5kIGFsc28gaW4gUUVNVS4gVGhpcyAiZGV2 aWNlIiB3b3VsZCBjYWxsCj4gPiAncmR0c2MnIG9uICdvdXRsJyBhbmQgcmV0dXJuIHRoZSB2YWx1 ZSBpbiAnaW5sJyAoSSBhY3R1YWxseSBkbyBub3QgdXNlCj4gPiB0aGUgdmFsdWUpLiBUaGUgbWVh c3VyZW1lbnQgaXMgZG9uZSBmcm9tIGEga2VybmVsIG1vZHVsZSBpbiB0aGUgZ3Vlc3QKPiA+IChz aW1wbHkgcmR0c2M7aW5sO3JkdHNjIG11bHRpcGxlIHRpbWUpLiBUaGlzIGlzIHRoZSByZXN1bHQg SSd2ZSBmb3VuZDoKPiA+Cj4gPiAgICAgcmluZzMgfjMuNXggc2xvd2VyIHRoYW4gcmluZzAKPiA+ ICAgICBxZW11ICAgfjIyeCBzbG93ZXIgdGhhbiByaW5nMAo+ID4gICAgICAgICAgIH42LjV4IHNs b3dlciB0aGFuIHJpbmczCj4gPgo+ID4gU28gdGhhdCB3b3VsZCBiZSB0aGUgd29yc3QtY2FzZSBz Y2VuYXJpbywgd2hlcmUgYW4gZW11bGF0b3IgYmFyZWx5IGRvCj4gPiBhbnl0aGluZy4KPiA+Cj4g Pgo+ID4gVGhlcmUgaGF2ZSBiZWVuIGRpZmZlcmVudCBtZXRob2RzIHByb3Bvc2VkIHRvIGRvIHRo ZSBkZXByaXYgbW9kZSwgaW4KPiA+IDw1NUE4RDQ3Ny4yMDYwOTA5QGNpdHJpeC5jb20+LCBvbmUg b2Ygd2hpY2ggd2FzIHRvIGltcGxlbWVudCBhIHBlci12Y3B1Cj4gPiBzdGFjayB3aGljaCBjb3Vs ZCBiZSBtb3JlIGVsZWdhbnQuCj4gPgo+ID4gU28sIHdvdWxkIHlvdSBzdWdnZXN0IHRoYXQgSSBz dGFydCB3b3JraW5nIG9uIGEgcGVyLXZjcHUgc3RhY2s/IE9yCj4gPiBzaG91bGQgSSBjb250aW51 ZSB3aXRoIHRoZSBjdXJyZW50IGRpcmVjdGlvbj8KPiA+Cj4gPgo+ID4gU29tZSBvZiB0aGUgY29k ZSBJIGhhdmUsIGluY2x1ZGluZyB0aGUgY29kZSBmb3IgdGhlIGJlbmNobWFyaywgY2FuIGJlCj4g PiBmb3VuZCBoZXJlOgo+ID4gZ2l0Oi8veGVuYml0cy54ZW4ub3JnL3Blb3BsZS9hcGVyYXJkL3hl bi11bnN0YWJsZS5naXQKPiA+IGJyYW5jaDogaHZtLXg4Ni1kZXByaXZpbGVnZWQtbW9kZS13aXAK PiAKPiBJIHRoaW5rIHdlIG5lZWQgdG8gdGFrZSBhIHN0ZXAgYmFjayBmb3IgYSBtaW51dGUuCj4g Cj4gQ29ycmVjdCBtZSBpZiBJJ20gd3JvbmcgaGVyZTogdGhpcyB3b3JrIGRvZXNuJ3QgbW92ZSB0 aGUgKng4Ngo+IGVtdWxhdGlvbiogY29kZSBpbnRvIHJpbmczLCBidXQgaW5zdGVhZCBtb3ZlcyB0 aGUgKmRldmljZSBlbXVsYXRpb24qCj4gY29kZSBpbnRvIHJpbmczLCBpcyB0aGF0IHJpZ2h0PwoK QWN0dWFsbHksIEkgdGhpbmsgaXQgd291bGQgYmUgZm9yIGJvdGguIElmIHRoZSBpbXBhY3Qgb24g cGVyZm9ybWFuY2UgaXMKc21hbGwgZW5vdWdoLiBJIGhhdmVuJ3QgdHJ5IHRvIG1vdmUgdGhlIHg4 NiBlbXVsYXRpb24gaW50byByaW5nMy4KCj4gU28gdGhlIHVzZSBjYXNlIHdvdWxkIGJlIGEgZGV2 aWNlIHdoaWNoIHdlIHRoaW5rIGlzIHRvbyBjb21wbGljYXRlZCB0bwo+IGVtdWxhdGUgaW4gcmlu ZzAsIGJ1dCBpcyB0b28gc2xvdyB0byBlbXVsYXRlIGluIHFlbXUuCj4gCj4gU28gdGhlIHF1ZXN0 aW9uIGlzOgo+IAo+IDEuIEFyZSB0aGVyZSBhbnkgZGV2aWNlcyBjdXJyZW50bHkgaW4gcmluZzAg dGhhdCB3ZSB3b3VsZCBsaWtlIHRvIGJlCj4gYWJsZSB0byBtb3ZlIGludG8gcmluZzM/Cj4gMi4g QXJlIHRoZXJlIGFueSBkZXZpY2VzIGN1cnJlbnRseSBpbiBxZW11IHRoYXQgd2Ugd291bGQgbGlr ZSB0byBtb3ZlCj4gaW50byByaW5nMz8KCk1heWJlIGhhdmluZyB0aGUgcGNpIHJvb3QgbW92ZSBm cm9tIHFlbXUgdG8geGVuIHdvdWxkIGhlbHAgc29tZSB1c2UKY2FzZXMuIEl0IGhhcyBiZWVuIHN1 Z2dlc3RlZCBoZXJlOgpodHRwczovL2xpc3RzLnhlbi5vcmcvYXJjaGl2ZXMvaHRtbC94ZW4tZGV2 ZWwvMjAxNi0wNi9tc2cwMDU1My5odG1sCjxhbHBpbmUuREVCLjIuMTAuMTYwNjAzMTcyNDI4MC4y NTkwQHNzdGFiZWxsaW5pLVRoaW5rUGFkLVgyNjA+CgoKLS0gCkFudGhvbnkgUEVSQVJECgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFp bGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94 ZW4tZGV2ZWwK