From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH v2 1/2] arm/mem_access: adjust check_and_get_page to not rely on current Date: Thu, 15 Dec 2016 16:16:08 +0000 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> <95515792-c9c2-bc83-e9b1-c07c299b46fc@citrix.com> <2ee50443-5942-6e29-7acc-aa0cdaa38bea@arm.com> <44ac0fd3-2936-fa13-43aa-ff767fcd7e34@citrix.com> <2b23668b-f244-265b-fea8-f1fce0845744@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1cHYhc-00054p-0I for xen-devel@lists.xenproject.org; Thu, 15 Dec 2016 16:16:16 +0000 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 , Stefano Stabellini , "xen-devel@lists.xenproject.org" , Jan Beulich , Tamas K Lengyel List-Id: xen-devel@lists.xenproject.org SGkgR2VvcmdlLAoKT24gMTUvMTIvMTYgMDQ6NTQsIEdlb3JnZSBEdW5sYXAgd3JvdGU6Cj4gT24g V2VkLCBEZWMgMTQsIDIwMTYgYXQgODowNSBQTSwgSnVsaWVuIEdyYWxsIDxqdWxpZW4uZ3JhbGxA YXJtLmNvbT4gd3JvdGU6Cj4+Pj4gTm90ZSB0aGF0IEFSTSBkb2VzIG5vdCBwcm92aWRlIGFueSBo YXJkd2FyZSBpbnN0cnVjdGlvbiB0byB0cmFuc2xhdGUKPj4+PiBhbiBJUEEgKGd1ZXN0IHBoeXNp Y2FsIGFkZHJlc3MpIHRvIGEgUEEuIFNvIHdlIGhhdmUgYSB3YWxrZXIgdGhlcmUuCj4+Pj4KPj4+ PiBXZSBhbHNvIGEgd2FsayBmb3IgZGVidWdnaW5nIGd1ZXN0IHBhZ2UgdGFibGUgKHRob3VnaCBv bmx5IHdoZW4gaXQgaXMKPj4+PiB1c2luZyBMUEFFKS4gSSBndWVzcyBpdCBjb3VsZCBiZSByZS11 c2VkIGluIHRoZSBjYXNlIHdoZXJlIGl0IGlzIG5vdAo+Pj4+IHBvc3NpYmxlIHRvIGRvIGl0IGlu IGhhcmR3YXJlLiBBbHRob3VnaCwgaXQgd291bGQgYmUgcmV3cml0dGVuIHRvIG1ha2UKPj4+PiBp dCBzYWZlLgo+Pj4KPj4+Cj4+PiBUaGlzIHNvdW5kcyBsaWtlIHRoZSBraW5kIG9mIHRoaW5nIHdo aWNoIHdvdWxkIGJlIGdlbmVyYWxseSB1c2VmdWwsCj4+PiBhbHRob3VnaCBJJ2QgbGlrZSB0byB1 bmRlcnN0YW5kIHRoZSBwcm9ibGVtIGJldHRlciBiZWZvcmUgbWFraW5nCj4+PiBzdWdnZXN0aW9u cy4KPj4KPj4KPj4gbWVtYWNjZXNzIHdpbGwgcmVzdHJpY3QgcGVybWlzc2lvbiBvZiBjZXJ0YWlu IG1lbW9yeSByZWdpb25zIGluIHN0YWdlLTIgcGFnZQo+PiB0YWJsZS4gRm9yIHRoZSBwdXJwb3Nl IG9mIHRoZSBleGFtcGxlLCBsZXRzIHNheSByZWFkLWFjY2VzcyBhcyBiZWVuCj4+IHJlc3RyaWN0 ZWQuCj4+Cj4+IE9uZSBvZiB0aGVzZSBtZW1vcnkgcmVnaW9ucyBtYXkgY29udGFpbiB0aGUgc3Rh Z2UtMSBwYWdlIHRhYmxlLiBEbyB5b3UgYWdyZWUKPj4gdGhhdCB0aGUgZ3Vlc3Qgd2lsbCBub3Qg YWJsZSB0byByZWFkIHN0YWdlLTEgcGFnZSB0YWJsZSBkdWUgdGhlIHJlc3RyaWN0aW9uPwo+Cj4g QnV0IG9ubHkgaWYgdGhlIG1lbW9yeSBpcyByZWFkLXByb3RlY3RlZCwgcmlnaHQ/ICBJZiBhIGd1 ZXN0IFBUCj4gKHN0YWdlLTEpIGhhcyByZWFkIHBlcm1pc3Npb24gYnV0IG5vdCB3cml0ZSBwZXJt aXNzaW9uLCB0aGUgaGFyZHdhcmUKPiB3YWxrZXIgc2hvdWxkIHN0aWxsIHdvcmssIHNob3VsZG4n dCBpdD8KCkdvb2QgcXVlc3Rpb24sIEFSTXY4LjEgaXMgYWRkaW5nIHN1cHBvcnQgb2YgaGFyZHdh cmUgbWFuYWdlbWVudCBmb3IgdGhlIAphY2Nlc3MgZmxhZyBhbmQgZGlydHkgc3RhdGUgKHNlZSBj aGFwdGVyIEI0IGluIERESTA1NTdBLmIpLiBTbyBpZiB0aGUgCmhhcmR3YXJlIGhhcyB0byB1cGRh dGUgdGhlIHBhZ2UgdGFibGUgZW50cnkgaXQgd291bGQgbmVlZCB3cml0ZSBwZXJtaXNzaW9uLgoK SSBoYXZlIGxvb2tlZCBhdCB0aGUgcHNldWRvIGNvZGUgZm9yIHRoZSBhZGRyZXNzIHRyYW5zbGF0 aW9uIGluIGJvdGggCkFSTXY4LjAgYW5kIEFSTXY4LjEuCgpBUk12OC4wIGRvZXMgbm90IG5lZWQg dG8gdXBkYXRlIHRoZSB0YWJsZSBlbnRyeSBpbiBoYXJkd2FyZSwgbG9va2luZyBhdCAKdGhlIEFB cmNoNjQuQ2hlY2tTMlBlcm1pc3Npb24gcHNldWRvLWNvZGUgKHNlZSBKMS01MjkwIGluIEFSTSBE REkgCjA0ODZBLmtfaXNzMTA3NzUpLCB0aGUgaGFyZHdhcmUgd2FsayB3aWxsIGNoZWNrIHdoZXRo ZXIgc3RhZ2UtMiBhcyByZWFkIApwZXJtaXNzaW9uIGR1cmluZyBTdGFnZSAxIHBhZ2UgdGFibGUg d2FsayAoczJmczF3YWxrIHZhcmlhYmxlIGlzIHRvIHRydWUpLgoKRm9yIEFSTXY4LjEsIGFmdGVy IHNwZW5kaW5nIGEgY291cGxlIG9mIGhvdXJzIHJlYWRpbmcgdGhlIHBzZXVkby1jb2RlIAooc2Vl IEUuMS4yLjUgaW4gRERJMDU1N0EuYikgbXkgdW5kZXJzdGFuZGluZyBpcyB0aGUgaGFyZHdhcmUg d2Fsa2VyIG1heSAKbmVlZCB0byB1cGRhdGUgdGhlIGVudHJ5IChzZWUgQUFyY2g2NC5DaGVja0Fu ZFVwZGF0ZURlc2NyaXB0b3IpLiBUaGlzIGlzIApkZXBlbmRpbmcgb24gd2hvIGhhcyB0cmlnZ2Vy ZWQgdGhlIHdhbGtlciAoZS5nIGFkZHJlc3MgdHJhbnNsYXRpb24gCmluc3RydWN0aW9uLCBpbnN0 cnVjdGlvbiBmZXRjaCwgbWVtb3J5IGFjY2Vzcy4uLikuIEluIHRoZSBjYXNlIG9mIAphZGRyZXNz IHRyYW5zbGF0aW9uIGluc3RydWN0aW9uIChBY2NUeXBlX0FUKSBubyBoYXJkd2FyZSB1cGRhdGUg d2lsbCBiZSAKZG9uZS4KClNvIHRvIGFuc3dlciB5b3VyIHF1ZXN0aW9uLCB0aGUgYWRkcmVzcyB0 cmFuc2xhdGlvbiBpbnN0cnVjdGlvbiBvbmx5IApuZWVkIHJlYWQgYWNjZXNzLiBTbyB0aGUgaXNz dWUgbWVudGlvbmVkIHdvdWxkIG9ubHkgaGFwcGVuIHdoZW4gdGhlIAptZW1vcnkgaXMgcmVhZC1w cm90ZWN0ZWQuCgpSZWFkaW5nIHRoZSBwc2V1ZG8tY29kZSByZW1pbmRlZCBtZSBhIHBvdGVudGlh bCB1cGNvbWluZyBlcnJvciB3aXRoIAptZW1hY2Nlc3MuIEkgbWVudGlvbmVkIGl0IGEgY291cGxl IG9mIG1vbnRocyBhZ28gKHNlZSBbMV0gYW5kIHRoZSBLVk0gCmNvdW50ZXJwYXJ0IFsyXSkgb24g dGhlIE1MLiBTdGFnZS0yIHBlcm1pc3Npb24gZmF1bHQgZHVyaW5nIHN0YWdlLTEgCndhbGssIHRo ZSBzeW5kcm9tZSBmaWVsZCBXblIgKFdyaXRlIG5vdCBSZWFkKSB3aWxsIHJlcG9ydCB3aGV0aGVy IHRoZSAKYWJvcnQgd2FzIGNhdXNlZCBieSBhIHdyaXRlIGluc3RydWN0aW9uIG9yIHJlYWQgaW5z dHJ1Y3Rpb24uIEFuZCBub3QgCndoZXRoZXIgdGhlIGhhcmR3YXJlIHdhbGtlciB3YXMgcmVhZGlu ZyBvciB3cml0aW5nIHRoZSBwYWdlIHRhYmxlIGVudHJ5LiAKVGhpcyBpcyBwcmV0dHkgb2J2aW91 cyB3aXRoIHRoZSBuZXcgcHNldWRvLWNvZGUgZm9yIApBQXJjaDY0LkNoZWNrUGVybWlzc2lvbiBp biB0aGUgc3BlYyAoc2VlIEoxLTUyOTAgaW4gQVJNIERESSAKMDQ4NkEua19pc3MxMDc3NSkuCgpJ IHRoaW5rIHRoYXQgYSBndWVzdCBoYXZpbmcgc3RhZ2UtMSBwYWdlIHRhYmxlIHByb3RlY3RlZCBp biBzdGFnZS0yIApjb3VsZCBiZSBzdHVjayBmb3JldmVyIGZhdWx0aW5nIGFuZCByZXRyeWluZyBh IHdyaXRlIGluc3RydWN0aW9uIGJlY2F1c2UgCm1lbWFjY2VzcyB3b3VsZCByZWNlaXZlIHRoZSB3 cm9uZyBmYXVsdCAoaS5lIHdyaXRlIGZhdWx0IGluc3RlYWQgb2YgcmVhZCkuCgpDaGVlcnMsCgpb MV0gCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvYXJjaGl2ZXMvaHRtbC94ZW4tZGV2ZWwv MjAxNi0xMC9tc2cwMDIyOC5odG1sClsyXSAKaHR0cHM6Ly9saXN0cy5jcy5jb2x1bWJpYS5lZHUv cGlwZXJtYWlsL2t2bWFybS8yMDE2LVNlcHRlbWJlci8wMjE5MjUuaHRtbAoKLS0gCkp1bGllbiBH cmFsbAoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVu LWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3Rz Lnhlbi5vcmcveGVuLWRldmVsCg==