From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ian Campbell Subject: Re: RFC Userspace hypercalls Date: Thu, 7 Jan 2016 10:42:27 +0000 Message-ID: <1452163347.21055.178.camel@citrix.com> References: <568CFE3A.8080505@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <568CFE3A.8080505@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Andrew Cooper , Xen-devel List Cc: Keir Fraser , Tim Deegan , Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gV2VkLCAyMDE2LTAxLTA2IGF0IDExOjQ0ICswMDAwLCBBbmRyZXcgQ29vcGVyIHdyb3RlOgo+ IEFsbCBjb25zb2xlIGxvZ2dpbmcgaXMgc3luY2hyb25vdXMgKHRvIGVuc3VyZSB0aGF0IGxvZyBt ZXNzYWdlcyBoYXZlCj4gZXNjYXBlZCB0aGUgVk0gYmVmb3JlIGFuIGFjdGlvbiBvY2N1cnMpIGFu ZCBieSBkZWZhdWx0LCBhbiBIVk0gdGVzdCB3aWxsCj4gdXNlIHRoZSBxZW11IGRlYnVnIHBvcnQs IGNvbnNvbGVfaW8gaHlwZXJjYWxsLCBhbmQgUFYgY29uc29sZSAod2hpY2gKPiB1c2VzIGV2dGNo biBoeXBlcmNhbGxzKS4KCkFsbCB0aHJlZSBzaW11bHRhbmVvdXNseSwgb3IgaXQgcGlja3Mgb25l IGRlcGVuZGluZyBvbiB0aGUgc2NlbmFyaW8/Cgo+IFRoZXJlIGFyZSBhbHJlYWR5IHNjZW5hcmlv cyB1bmRlciB0ZXN0IHdoZXJlIHdlIGNhbm5vdCByZWx5IG9uIHRoZSB0ZXN0Cj4ga2VybmVsIGhh dmluZyBhIGZ1bGx5IGZ1bmN0aW9uaW5nIHNldCBvZiBlbnRyeSBwb2ludHMgKGUuZy4gdGhlIERQ TCBwYXJ0Cj4gb2YgdGhlIHRlc3QgYWJvdmUpLsKgwqBUaGVyZWZvcmUgSSBzcGVjaWZpY2FsbHkg d2FudCB0byBtYWtlIGl0IHBvc3NpYmxlCj4gdG8gbWFrZSB1c2Vyc3BhY2UgaHlwZXJjYWxscywg cmF0aGVyIHRoYW4gc2ltcGx5IG1ha2luZyB0aGVtIHBvc3NpYmxlIHRvCj4gYmUgdHJhcHBlZC1h bmQtZm9yd2FyZGVkLgoKQW5kIGluIHRoZXNlIHRlc3QgY2FzZXMgdGhlcmUgaXMgdXNlZnVsIGxv Z2dpbmcgdG8gYmUgZG9uZSBiZXR3ZWVuIHRoZQpicmVhayB0aGUgd29ybGQgYW5kIHJlcGFpciB0 aGUgd29ybGQgcGhhc2VzIHdoaWNoIEkgc3VwcG9zZSBmb2xsb3dzIGlmCnRoaW5ncyBkaWRuJ3Qg Y3Jhc2g/Cgo+IEFzIGEgcmVzdWx0LCBJIHByb3Bvc2luZyBpbnRyb2R1Y2luZyBhIGh5cGVyY2Fs bCB3aGljaCBhbGxvd3MgYSBkb21haW4KPiB0byBhZGp1c3QgaXRzIGVudHJ5IGNyaXRlcmlhIGZv ciBoeXBlcmNhbGxzIChlLmcuIHNldF9oeXBlcmNhbGxfaW9wbCkuIAo+IERvaW5nIHRoaXMgZm9y IEhWTSBndWVzdHMgaXMgc3RyYWlnaHQgZm9yd2FyZCwgYnV0IFBWIGd1ZXN0cyBhcmUgaGFyZGVy LAo+IGFzIHRoZXkgYm91bmNlIHRocm91Z2ggWGVuIGVudHJ5cG9pbnRzLgo+IAo+IEZvciBQViBn dWVzdHMsIEkgcHJvcG9zZSB0aGF0IHVzZXJzcGFjZSBoeXBlcmNhbGxzIGdldCBpbXBsZW1lbnRl ZCB3aXRoCj4gdGhlIGludCAkMHg4MiBwYXRoIGV4Y2x1c2l2ZWx5LsKgwqBpLmUuIGVuYWJsaW5n IHVzZXJzcGFjZSBoeXBlcmNhbGxzCj4gY2F1c2VzIHRoZSBoeXBlcmNhbGwgcGFnZSB3cml0aW5n IGxvZ2ljIHRvIGNvbnNpZGVyIHRoZSBndWVzdCBhIHJpbmcxCj4ga2VybmVsLCBhbmQgdGhlIGlu dCAkMHg4MiBlbnRyeXBvaW50IHN1aXRhYmx5IGRlbGVnYXRlcyBiZXR3ZWVuIGEKPiByZWd1bGFy IGh5cGVyY2FsbCBhbmQgYSBjb21wYXQgaHlwZXJjYWxsLgo+IAo+IFRob3VnaHRzPwoKV291bGQg YSB4ZW5jb25zb2xlZCBtb2RlIHdoaWNoIHBvbGxzIGZvciB1cGRhdGVzIChvbiBzcGVjaWZpYyBn dWVzdHMgb25seSksCmFsb25nIHdpdGggdGhlIGd1ZXN0IHNwaW5uaW5nIHdhaXRpbmcgZm9yIHRo ZSBjb25zIHBvaW50ZXIgdG8gY2F0Y2ggdGhlCnByb2Qgb25lIGlmIGl0IGNhcmVzIGFib3V0IHN5 bmNocm9ub3VzIGxvZ2dpbmcgYmUgc3VmZmljaWVudCBmb3IgdGhpcyB1c2UKY2FzZT8KCk90aGVy IHJhbmRvbSBpZGVhczoKSW1wbGVtZW50IHRoZSBkZWJ1ZyBpbyBwb3J0IGZvciBQViBndWVzdHMg dG9vCkxvZyB0byBhIGluIGd1ZXN0IGJ1ZmZlciwgYXMgRGF2aWQgc3VnZ2VzdGVkLCBwb3NzaWJs eSB1c2UgeGVuYWNjZXNzIG9yCnNpbWlsYXIgdG8gdHJhcCB1cGRhdGVzIG9yIGFzIGEgZG9vcmJl bGwuCgo+IAo+IH5BbmRyZXcKPiAKPiBfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwo+IFhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKPiBYZW4tZGV2ZWxAbGlzdHMu eGVuLm9yZwo+IGh0dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApY ZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK