From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: [RFC] xen/pvh: detect PVH after kexec Date: Tue, 21 Mar 2017 11:01:37 -0400 Message-ID: References: <20170320182042.6103-1-vkuznets@redhat.com> <5ef043a0-2382-79b2-196a-af214fc68fd4@oracle.com> <87efxr9e8f.fsf@vitty.brq.redhat.com> <20170321100115.c52rcfmhopgkbczd@dhcp-3-128.uk.xensource.com> <87var2978c.fsf@vitty.brq.redhat.com> <20170321121302.wst2k54o6zcmejwn@dhcp-3-128.uk.xensource.com> <5472a531-a0b2-7db7-b4bf-fba460fe9161@oracle.com> <20170321141629.sgbouqatbmcxrsow@dhcp-3-128.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cqLI8-0006Ae-PF for xen-devel@lists.xenproject.org; Tue, 21 Mar 2017 15:01:44 +0000 In-Reply-To: <20170321141629.sgbouqatbmcxrsow@dhcp-3-128.uk.xensource.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Roger Pau Monne Cc: Juergen Gross , xen-devel@lists.xenproject.org, Vitaly Kuznetsov List-Id: xen-devel@lists.xenproject.org T24gMDMvMjEvMjAxNyAxMDoxNiBBTSwgUm9nZXIgUGF1IE1vbm5lIHdyb3RlOgo+IE9uIFR1ZSwg TWFyIDIxLCAyMDE3IGF0IDEwOjA1OjI3QU0gLTA0MDAsIEJvcmlzIE9zdHJvdnNreSB3cm90ZToK Pj4gT24gMDMvMjEvMjAxNyAwODoxMyBBTSwgUm9nZXIgUGF1IE1vbm5lIHdyb3RlOgo+Pj4gT24g VHVlLCBNYXIgMjEsIDIwMTcgYXQgMTI6NTM6MDdQTSArMDEwMCwgVml0YWx5IEt1em5ldHNvdiB3 cm90ZToKPj4+PiBSb2dlciBQYXUgTW9ubmUgPHJvZ2VyLnBhdUBjaXRyaXguY29tPiB3cml0ZXM6 Cj4+Pj4+IE9uIFR1ZSwgTWFyIDIxLCAyMDE3IGF0IDEwOjIxOjUyQU0gKzAxMDAsIFZpdGFseSBL dXpuZXRzb3Ygd3JvdGU6Cj4+Pj4gSSBkaWRuJ3QgaW52ZXN0aWdhdGUgd2h5IGl0IGhhcHBlbnMs IHNldHRpbmcgeGVuX3B2aD0xIGhlbHBlZC4gTm90IHN1cmUKPj4+PiBpZiBpdCdzIHJlbGF0ZWQs IGJ1dCBJIHNlZSB0aGUgZm9sbG93aW5nIGNvZGUgaW4gX19nbnR0YWJfaW5pdCgpOgo+Pj4+Cj4+ Pj4gCS8qIERlbGF5IGdyYW50LXRhYmxlIGluaXRpYWxpemF0aW9uIGluIHRoZSBQViBvbiBIVk0g Y2FzZSAqLwo+Pj4+IAlpZiAoeGVuX2h2bV9kb21haW4oKSAmJiAheGVuX3B2aF9kb21haW4oKSkK Pj4+PiAJCXJldHVybiAwOwo+Pj4+Cj4+Pj4gYW5kIGdudHRhYl9pbml0KCkgaXMgbGF0ZXIgY2Fs bGVkIGluIHBsYXRmb3JtX3BjaV9wcm9iZSgpLgo+Pj4gQnV0IEkgZ3Vlc3MgdGhpcyBuZXZlciBo YXBwZW5zIGluIHRoZSBQVkggY2FzZSBiZWNhdXNlIHRoZXJlJ3Mgbm8gWGVuIHBsYXRmb3JtCj4+ PiBQQ0kgZGV2aWNlPwo+Pj4KPj4+IE1ha2luZyB0aGUgaW5pdGlhbGl6YXRpb24gb2YgdGhlIGdy YW50IHRhYmxlcyBjb25kaXRpb25hbCB0byB0aGUgcHJlc2VuY2Ugb2YKPj4+IHRoZSBYZW4gcGxh dGZvcm0gUENJIGRldmljZSBzZWVtcyB3cm9uZy4gVGhlIG9ubHkgdGhpbmcgbmVlZGVkIGZvciBn cmFudCB0YWJsZXMKPj4+IGlzIGEgcGh5c2ljYWwgbWVtb3J5IHJlZ2lvbi4gVGhpcyBjYW4gZWl0 aGVyIGJlIHBpY2tlZCBmcm9tIHVudXNlZCBwaHlzaWNhbAo+Pj4gbWVtb3J5IChvdmVyIDRHQiB0 byBhdm9pZCBjb2xsaXNpb25zKSwgb3IgYnkgZnJlZWluZyBzb21lIFJBTSByZWdpb24uCj4+IFRo YXQncyBiZWNhdXNlIExpbnV4IEhWTSBndWVzdHMgdXNlIFBDSSBNTUlPIHJlZ2lvbiBmb3IgZ3Jh bnQgdGFibGVzCj4+IChzZWUgcGxhdGZvcm1fcGNpX3Byb2JlKCkpLgo+IFRoZXJlJ3Mgbm8gbGlt aXRhdGlvbiBpbiBYZW4gdGhhdCBmb3JjZXMgSFZNIGd1ZXN0cyB0byB1c2UgdGhlIFBDSSBNTUlP IGhvbGUgb2YKPiB0aGUgWGVuIFBDSSBkZXZpY2UgZm9yIHRoZSBncmFudCB0YWJsZS4gWW91IGNh biBzYWZlbHkgdXNlIGEgUkFNIHJlZ2lvbiwgb3IgYW4KPiB1bnVzZWQgcGh5c2ljYWwgcmFuZ2Us IHByb2JhYmx5IGFib3ZlIDRHQiBmb3Igc2FmZXR5LiBJJ20gbm90IHN1cmUgYWJvdXQgd2hhdAo+ IG90aGVyIHRoaW5ncyBwcmV2ZW50IGJvb3RpbmcgYSBQVkggZ3Vlc3QgdXNpbmcgdGhlIHNhbWUg cGF0aCBhcyBIVk0sIEkgZ3Vlc3MKPiB0aGUgQUNQSSBTQ0kgaW50ZXJydXB0IGlzIGFsc28gb25l IG9mIHRoZW0uCgoKSSB0aGluayAoaG9wZT8pIHVzaW5nIEFDUElfSVJRX01PREVMX1BMQVRGT1JN IGZvciBQVkggZ3Vlc3RzIHRha2VzIGNhcmUKb2YgdGhpcy4KCgo+Cj4gSSB3b25kZXIgaWYgaXQg d291bGQgbWFrZSBzZW5zZSB0byBhbm5vdW5jZSB1c2luZyBDUFVJRCB0aGUgdGhpbmdzIHRoYXQg ZGlmZmVyCj4gZnJvbSBIVk0gKGxpa2UgdGhlIFNDSSBvdmVyIGV2ZW50IGNoYW5uZWxzKSwgaW5z dGVhZCBvZiBzaW1wbHkgYWR2ZXJ0aXNpbmcgUFZILgo+IEJvcmlzLCBkbyB5b3UgaGF2ZSBhIGxp c3Qgb2YgZGlmZmVyZW5jZXMgdGhhdCBwcmV2ZW50IFBWSCBmcm9tIHVzaW5nIHRoZSBIVk0KPiBj b2RlIHBhdGhzPwoKVGhlcmUgaXNuJ3QgbXVjaCwgcmVhbGx5LiBBbmQgbW9zdCBvZiB0aGVtIGFy ZSBkaXNjb3ZlcmFibGUgYWxyZWFkeS4gRm9yCmV4YW1wbGUsIHdlIGNob29zZSBhY3BpX2lycV9t b2RlbCBiYXNlZCBvbiBhdmFpbGFiaWxpdHkgb2YgSU9BUElDcywKd2hpY2ggd2UgZmluZCBvdXQg YnkgcGFyc2luZyBNQURULgoKU2ltaWxhcmx5LCBmb3IgdGhlIHByb2JsZW0gYXQgaGFuZCAobGFj ayBvZiBQQ0kgcGxhdGZvcm0gZGV2aWNlKSB3ZQpzaG91bGQgYmUgYWJsZSB0byBqdXN0IHNlYXJj aCBQQ0kgc3BhY2UgYW5kIG5vdCBmaW5kIGl0LCBzaG91bGRuJ3Qgd2U/CldlIG1heSBuZWVkIHRv IGNoYW5nZSBvcmRlciBvZiBob3cgdGhpbmdzIGFyZSBkb25lLgoKCi1ib3JpcwoKX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcg bGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRl dmVsCg==