From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: identify a Xen PV domU to fix devmem_is_allowed Date: Tue, 22 Mar 2016 14:37:03 -0400 Message-ID: <56F190CF.8010305@oracle.com> References: <20160229102849.GA18202@aepfle.de> <20160229151000.GA17154@char.us.oracle.com> <56D57F4F02000078000D7BD4@prv-mh.provo.novell.com> <20160301143405.GD21829@char.us.oracle.com> <56D5AB13.1000101@oracle.com> <20160315165702.GA29619@gmail.com> <56F067D5.1040404@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <56F067D5.1040404@oracle.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Olaf Hering Cc: xen-devel@lists.xen.org, david.vrabel@citrix.com, Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gMDMvMjEvMjAxNiAwNToyOSBQTSwgQm9yaXMgT3N0cm92c2t5IHdyb3RlOgo+IE9uIDAzLzE1 LzIwMTYgMTI6NTcgUE0sIE9sYWYgSGVyaW5nIHdyb3RlOgo+PiBPbiBUdWUsIE1hciAwMSwgQm9y aXMgT3N0cm92c2t5IHdyb3RlOgo+Pgo+Pj4gb24gZG9tVToKPj4+Cj4+PiBbcm9vdEBkaGNwLWJ1 cmxpbmd0b243LTJuZC1CLWVhc3QtMTAtMTUyLTU1LTE0MCB+XSMgb2QgLU4gMSAtaiA0MDk2IAo+ Pj4gL2Rldi9tZW0KPj4+IG9kOiAvZGV2L21lbTogcmVhZCBlcnJvcjogQmFkIGFkZHJlc3MKPj4+ IDAwMTAwMDAKPj4+IFtyb290QGRoY3AtYnVybGluZ3RvbjctMm5kLUItZWFzdC0xMC0xNTItNTUt MTQwIH5dIwo+Pj4KPj4+IHdpdGgKPj4+Cj4+PiAoWEVOKSBtbS5jOjE3Njc6ZDE0djAgQmFkIEwx IGZsYWdzIDEwCj4+IEhvdyBzaG91bGQgd2UgcHJvY2VlZCB3aXRoIHRoaXMgYnVnPwo+Pgo+Cj4g SSBjYW4ndCBzZWUgYW55IHdheSB0byBhdm9pZCBjYWxsaW5nIHhlbl9wdl9kb21haW4oKSBzbyB3 aGF0IHlvdSAKPiBzdWdnZXN0ZWQgc2hvdWxkIHdvcmsuIFRoZSBvbmx5IHByb2JsZW0gaXMgdGhh dCB0aGlzIHdpbGwgbm93IGNhdXNlIAo+IHJlc2VydmVkIGFyZWFzIHRvIGFsc28gcmV0dXJuIDA6 Cj4KPiAjIGhlYWQgL3Byb2MvaW9tZW0KPiAwMDAwMDAwMC0wMDAwMGZmZiA6IHJlc2VydmVkIDw9 PT09Cj4gMDAwMDEwMDAtMDAwOWZmZmYgOiBTeXN0ZW0gUkFNCj4gMDAwYTAwMDAtMDAwZmZmZmYg OiByZXNlcnZlZCAgICAgICA8PT09PT0KPiAgIDAwMGYwMDAwLTAwMGZmZmZmIDogU3lzdGVtIFJP TQo+IDAwMTAwMDAwLTdmZmZmZmZmIDogU3lzdGVtIFJBTQo+ICAgMDEwMDAwMDAtMDE3MmEwNjUg OiBLZXJuZWwgY29kZQo+ICAgMDE3MmEwNjYtMDFkMzJiM2YgOiBLZXJuZWwgZGF0YQo+ICAgMDFl YzUwMDAtMDIwMjZmZmYgOiBLZXJuZWwgYnNzCj4gZmVlMDAwMDAtZmVlMDBmZmYgOiBMb2NhbCBB UElDCj4KPiB3aGljaCBJIGRvbid0IHRoaW5rIHRoZXkgcmVhbGx5IHNob3VsZC4KPgo+IEhvdyBh Ym91dCB0aGlzOgo+Cj4gICAgIGlmIChwYWdlbnIgPCAyNTYgJiYgIXhlbl9wdl9kb21haW4oKSkK PiAgICAgICAgIHJldHVybiAxOwo+ICAgICBpZiAoaW9tZW1faXNfZXhjbHVzaXZlKHBhZ2VuciA8 PCBQQUdFX1NISUZUKSkKPiAgICAgICAgIHJldHVybiAwOwo+ICAgICBpZiAoIXBhZ2VfaXNfcmFt KHBhZ2VucikpCj4gICAgICAgICByZXR1cm4gMTsKPgo+Cj4gQWxzbywgd2hpbGUgbG9va2luZyBp bnRvIHRoaXMgSSBub3RpY2VkIHRoYXQgcGF0X3hfbXRycl90eXBlKCkgd2lsbCAKPiBtYWtlIHVz IHN3aXRjaCBmcm9tIF9QQUdFX0NBQ0hFX01PREVfV0IgdG8gX1BBR0VfQ0FDSEVfTU9ERV9VQ19N SU5VUyAKPiB3aGVuIHRyeWluZyB0byBtbWFwIGFuZCB0aGlzIGlzIHdoYXQgY2F1c2VzIHRoZSBo eXBlcnZpc29yIGVycm9yIAo+IG1lc3NhZ2UgYW5kIHRoZSBzcGxhdCBpbiBMaW51eC4gV2UgbWFr ZSB0aGlzIHN3aXRjaCBkZXNwaXRlIHRoZSBmYWN0IAo+IHRoYXQgTVRSUiBpcyBkaXNhYmxlZCBh bmQgdGhlcmVmb3JlIG10cnJfdHlwZV9sb29rdXAoKSByZXR1cm5zIAo+IE1UUlJfVFlQRV9JTlZB TElELgo+Cj4gU2hvdWxkIHdlIHJldHVybiByZXFfdHlwZSBpcyBNVFJSIGlzIGRpc2FibGVkPwoK T2xhZiwKCgpDYW4geW91IGFwcGx5IFBBVCBjaGFuZ2VzIGZyb20gCmh0dHA6Ly9saXN0cy54ZW5w cm9qZWN0Lm9yZy9hcmNoaXZlcy9odG1sL3hlbi1kZXZlbC8yMDE2LTAzL21zZzAyMTI3Lmh0bWwg YW5kIApzZWUgaWYgaXQgaGVscHM/CgpJdCBzaG91bGQgYXQgbGVhc3QgZ2V0IHJpZCBvZiB0aGUg c3BsYXQgKHBhdGNoIDMgaXMgdGhlIG9uZSBhZGRyZXNzZXMgCm5vLU1UUlIgcHJvYmxlbSB0aGF0 IEkgbWVudGlvbmVkIGFib3ZlKS4gV2Ugc2hvdWxkIHN0aWxsIGZpeCAKZGV2bWVtX2lzX2FsbG93 ZWQoKSB0aG91Z2guCgotYm9yaXMKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCmh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=