From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tamas K Lengyel Subject: Re: [PATCH v2 1/2] arm/mem_access: adjust check_and_get_page to not rely on current Date: Mon, 12 Dec 2016 12:41:18 -0700 Message-ID: References: <20161209195925.21420-1-tamas.lengyel@zentific.com> <584E62FB0200007800127BF8@prv-mh.provo.novell.com> <6b8b0a44-278d-f426-90e1-b4910ac6dc7d@arm.com> <73b6b6c0-8acd-6df2-3bdf-775342fffb01@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cGWTR-0006f1-ME for xen-devel@lists.xenproject.org; Mon, 12 Dec 2016 19:41:21 +0000 Received: by mail-qt0-f194.google.com with SMTP id m48so11182345qta.2 for ; Mon, 12 Dec 2016 11:41:20 -0800 (PST) In-Reply-To: <73b6b6c0-8acd-6df2-3bdf-775342fffb01@arm.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Julien Grall Cc: "xen-devel@lists.xenproject.org" , Stefano Stabellini , Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gTW9uLCBEZWMgMTIsIDIwMTYgYXQgMTI6MTEgUE0sIEp1bGllbiBHcmFsbCA8anVsaWVuLmdy YWxsQGFybS5jb20+IHdyb3RlOgo+IEhpIFRhbWFzLAo+Cj4gT24gMTIvMTIvMTYgMTg6NDIsIFRh bWFzIEsgTGVuZ3llbCB3cm90ZToKPj4KPj4gT24gTW9uLCBEZWMgMTIsIDIwMTYgYXQgNDo0NiBB TSwgSnVsaWVuIEdyYWxsIDxqdWxpZW4uZ3JhbGxAYXJtLmNvbT4KPj4gd3JvdGU6Cj4+Pgo+Pj4g VGhlIHRyYW5zbGF0aW9uIFZBIHRvIElQQSAoZ3Vlc3QgcGh5c2ljYWwgYWRkcmVzcykgaXMgZG9u ZSB1c2luZwo+Pj4gaGFyZHdhcmUuCj4+PiBJZiB0aGUgdW5kZXJseWluZyBtZW1vcnkgb2YgdGhl IHN0YWdlLTEgcGFnZSB0YWJsZSBpcyBwcm90ZWN0ZWQsIHNvIHRoZQo+Pj4gdHJhbnNsYXRpb24g d2lsbCBmYWlsLiBHaXZlbiB0aGF0IHRoaXMgZnVuY3Rpb24gaXMgdXNlZCBpbiBoeXBlcmNhbGwg dG8KPj4+IHJldHJpZXZlIHRoZSBwYWdlIGFzc29jaWF0ZWQgdG8gYSBidWZmZXIsIGl0IG1lYW5z IHRoYXQgaXQgd2lsbCBub3QgYmUKPj4+IHBvc3NpYmxlIHRvIGRvIGh5cGVyY2FsbCB3aGVuIHRo ZSBwYWdlIHRhYmxlIHVzZWQgdG8gZmluZCB0aGUgYnVmZmVyIElQQQo+Pj4gaGFzCj4+PiBub3Qg YmVlbiB0b3VjaGVkLgo+Pgo+Pgo+PiBUaGlzIGZ1bmN0aW9uIHNwZWNpZmljYWxseSB3b3JrcyBh cm91bmQgdGhlIGNhc2Ugd2hlcmUgdGhlIHBhZ2Ugb2YgdGhlCj4+IGd1ZXN0IHBhZ2V0YWJsZSBp cyBub3QgYWNjZXNzaWJsZSBkdWUgdG8gbWVtX2FjY2Vzcywgd2hlbiB0aGUgaGFyZHdhcmUKPj4g YmFzZWQgbG9va3VwIGRvZXNuJ3Qgd29yay5UaGlzIGZ1bmN0aW9uIGNoZWNrcyB3aGF0IHRoZSBm YXVsdCB3YXMsCj4+IGNoZWNrcyB0aGUgcGFnZSB0eXBlIGFuZCB0aGUgbWVtX2FjY2VzcyByaWdo dHMgdG8gZGV0ZXJtaW5lIHdoZXRoZXIKPj4gdGhlIGZhdWx0IHdhcyBsZWdpdCwgb3IgaWYgaXQg d2FzIGR1ZSB0byBtZW1fYWNjZXNzLiBJZiBpdCB3YXMKPj4gbWVtX2FjY2VzcyBpdCBnZXRzIHRo ZSBwYWdlIHdpdGhvdXQgaW52b2x2aW5nIHRoZSBoYXJkd2FyZS4gSSdtIG5vdAo+PiBmb2xsb3dp bmcgd2hhdCB5b3UgZGVzY3JpYmUgYWZ0ZXJ3YXJkcyByZWdhcmRpbmcgdGhlIGJ1ZmZlciBhbmQg d2hhdAo+PiB5b3UgbWVhbiBieSAidGhlIGJ1ZmZlciBJUEEgaGFzIG5vdCBiZWVuIHRvdWNoZWQi LiBDYXJlIHRvIGVsYWJvcmF0ZT8KPgo+Cj4gSSBhbSBhZnJhaWQgdG8gc2F5IHRoYXQgdGhlIGZ1 bmN0aW9uIGRvZXMgbm90IGRvIHdoYXQgeW91IHRoaW5rIGFuZCBpcyBzdGlsbAo+IHVzaW5nIHRo ZSBoYXJkd2FyZSB0byBkbyB0aGUgdHJhbnNsYXRpb24uIEZvciBpbnN0YW5jZSB0aGUgZnVuY3Rp b24KPiBndmFfdG9faXBhIGlzIHVzaW5nIHRoZSBoYXJkd2FyZSB0byB0cmFuc2xhdGUgYSBWQSB0 byBJUEEuCj4KPiBUaGlzIGZ1bmN0aW9uIGlzIGNhbGxlZCB3aGVuIGl0IGlzIG5vdCBwb3NzaWJs ZSB0byBkaXJlY3RseSB0cmFuc2xhdGUgYSBWQQo+IHRvIGEgUEEuIFRoaXMgbWF5IGZhaWwgZm9y IHZhcmlvdXMgcmVhc29uOgo+ICAgICAgICAgKiBUaGUgdW5kZXJseWluZyBtZW1vcnkgb2YgdGhl IGJ1ZmZlciB3YXMgcmVzdHJpY3RlZCBpbiBzdGFnZS0yCj4gICAgICAgICAqIFRoZSB1bmRlcmx5 aW5nIG1lbW9yeSBvZiBzdGFnZS0xIHBhZ2UgdGFibGVzIHdhcyByZXN0cmljdGVkIGluCj4gc3Rh Z2UtMgo+Cj4gV2hpbHN0IHRoZSBmdW5jdGlvbiBpcyBzb2x2aW5nIHRoZSBmb3JtZXIsIHRoZSBs YXR0ZXIgd2lsbCBub3Qgd29yayBkdWUgdG8KPiB0aGUgY2FsbCB0byBndmFfdG9faXBhLiBUaGlz IHdpbGwgZmFpbCBiZWNhdXNlIHRoZSBzdGFnZS0xIFBUIGFyZSBub3QKPiBhY2Nlc3NpYmxlLgoK SSBzZWUuIFNvIElNSE8gdGhpcyBpcyBub3QgYSBwcm9ibGVtIHdpdGggbWVtX2FjY2VzcyBpbiBn ZW5lcmFsLCBidXQgYQpwcm9ibGVtIHdpdGggYSBzcGVjaWZpYyBhcHBsaWNhdGlvbiBvZiBtZW1f YWNjZXNzIG9uIEFSTSAoaWUuCnJlc3RyaWN0aW5nIHJlYWQgYWNjZXNzIHRvIGd1ZXN0IHBhZ2V0 YWJsZXMpLiBJdCdzIGEgcGl0dHkgdGhhdCBBUk0KZG9lc24ndCByZXBvcnQgdGhlIElQQSBhdXRv bWF0aWNhbGx5IGR1cmluZyBhIHN0YWdlLTIgdmlvbGF0aW9uLiBBIHdheQp0byB3b3JrIGFyb3Vu ZCB0aGlzIHdvdWxkIHJlcXVpcmUgbWVtX2FjY2VzcyByZXN0cmljdGlvbnMgdG8gYmUKY29tcGxl dGUgcmVtb3ZlZCwgd2hpY2ggY2Fubm90IGJlIGRvbmUgdW5sZXNzIGFsbCBvdGhlciB2Q1BVcyBv ZiB0aGUKZG9tYWluIGFyZSBwYXVzZWQgdG8gYXZvaWQgYSByYWNlLWNvbmRpdGlvbi4gV2l0aCBh bHRwMm0gSSBjb3VsZCBhbHNvCmVudmlzaW9uIGNyZWF0aW5nIGEgdGVtcG9yYXJ5IHAybSBmb3Ig dGhlIHZjcHUgYXQgaGFuZCB3aXRoIHRoZQpyZXN0cmljdGlvbiByZW1vdmVkLCBzbyB0aGF0IGl0 IGRvZXNuJ3QgYWZmZWN0IG90aGVyIHZjcHVzLiBIb3dldmVyLAp3aXRob3V0IGEgdXNlLWNhc2Ug c3BlY2lmaWNhbGx5IHJlcXVpcmluZyB0aGlzIHRvIGJlIGltcGxlbWVudGVkIEkKd291bGQgbm90 IGRlZW0gaXQgY3JpdGljYWwuIEZvciBub3cgYSBjb21tZW50IGluIHRoZSBoZWFkZXIgZGVzY3Jp YmluZwp0aGlzIGxpbWl0YXRpb24gd291bGQgc3VmZmljZSBmcm9tIG15IHBlcnNwZWN0aXZlLgoK VGhhbmtzLApUYW1hcwoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRw czovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==