From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [RFC] DOMCTL_memattrs_op : a new DOMCTL to play with stage-2 page attributes Date: Mon, 3 Jul 2017 12:16:07 +0100 Message-ID: <61b4b75a-23db-adf5-2b96-1d5f70d19cb3@arm.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" 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 1dRzKv-0007tw-AC for xen-devel@lists.xenproject.org; Mon, 03 Jul 2017 11:16:13 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Zhongze Liu , Stefano Stabellini Cc: Wei Liu , Andrew Cooper , Ian Jackson , xen-devel@lists.xen.org, Jan Beulich , xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org SGksCgpPbiAwMS8wNy8xNyAxMDoxNiwgWmhvbmd6ZSBMaXUgd3JvdGU6Cj4+IE9uIHRoZSBBUk0g c2lkZSwgd2UgYXJlIG1pc3NpbmcgQlVGRkVSQUJMRSBhbmQgV1JJVEVBTExPQy4gSSBkb24ndCBr bm93Cj4+IGhvdyB0aGV5IG1hcCB0byB0aGVzZSB0YWdzLCB3aGljaCBjb21lcyBmcm9tIHRoZSB4 ODYgd29ybGQuIE1heWJlIHdlCj4+IHNob3VsZCBqdXN0IGFkZCB0aGVtIHNlcGFyYXRlbHkgYXMg QVJNIG9ubHksIGxpa2U6Cj4+Cj4+ICAgLyogYnVmZmVyYWJsZSwgQVJNIG9ubHkgKi8KPj4gICAj ZGVmaW5lIFhFTl9ET01DVExfTUVNQVRUUlNfQlVGRkVSQUJMRSAweDA4VQo+PiAgIC8qIHdyaXRl IGFsbG9jLCBBUk0gb25seSAqLwo+PiAgICNkZWZpbmUgWEVOX0RPTUNUTF9NRU1BVFRSU19DQUNI RV9XQSAgIDB4MDlVCj4+Cj4+IFRoZW9yZXRpY2FsbHksIHdlIGNvdWxkIHNheSBYRU5fRE9NQ1RM X01FTUFUVFJTX1VDIG1lYW5zICJCVUZGRVJBQkxFIiBvbgo+PiBBUk0gYW5kIFhFTl9ET01DVExf TUVNQVRUUlNfU1VDIG1lYW5zICJVTkNBQ0hFRCIsIGJlY2F1c2UgdGhhdCdzCj4+IGFjdHVhbGx5 IHdoYXQgdGhleSBjb3JyZXNwb25kIHRvIEkgdGhpbmsuIEhvd2V2ZXIgdXNpbmcgeDg2IG5hbWVz IGZvcgo+PiBBUk0gY2FjaGluZyBhdHRyaWJ1dGVzIGlzIHZlcnkgY29uZnVzaW5nIGFuZCBlcnJv ciBwcm9uZS4gU28gSSB3b3VsZAo+PiBwcmVmZXIgaW50cm9kdWNpbmcgc2VwYXJhdGUgdGFncyBm b3IgQVJNIGFuZCB4ODYuIEhvd2V2ZXIsIHJldXNpbmcKPj4gWEVOX0RPTUNUTF9NRU1BVFRSU19V QywgWEVOX0RPTUNUTF9NRU1BVFRSU19DQUNIRV9XVCBhbmQKPj4gWEVOX0RPTUNUTF9NRU1BVFRS U19DQUNIRV9XQiBhcyBaaG9uZ3plIGRpZCBpbiB0aGlzIHByb3Bvc2FsIHdvdWxkIGJlIE9LCj4+ IGZvciBtZS4KCldoZW4gSSByZWFkIGJ1ZmZlcmFibGUgaXQgaXMgdW5jbGVhciBpZiB5b3Ugc3Bl YWsgYWJvdXQgbm9ybWFsIG1lbW9yeSBvciAKZGV2aWNlLiBJIGFtIGxvb2tpbmcgYXQgcmVuYW1p bmcgdGhlIG1lbW9yeSBhdHRyaWJ1dGUgd2l0aCBwcmVmaXhpbmcgCnRoZW0gd2l0aCB0aGUgdHlw ZSBtZW1vcnkuCgpGb3IgaW5zdGFuY2UgQlVGRkVSQUJMRSB3b3VsZCBiZSByZW5hbWVkIHRvIE5P Uk1BTF9OQy4uLgoKPj4KPj4gSnVsaWVuLCB3aGF0IGRvIHlvdSB0aGluaz8KCkkgd2lsbCBvbmx5 IHNwZWFrIGFib3V0IEFSTSBhcyBteSBrbm93bGVkZ2UgaXMgdmVyeSBsaW1pdGVkIG9uIHg4Ni4K CkZvciBBUk0sIHRoZSByZXN1bHRpbmcgbWVtb3J5IGF0dHJpYnV0ZSBpcyBhIGNvbWJpbmF0aW9u IG9mIHN0YWdlLTEgYW5kIApzdGFnZS0yIChzZWUgVGFibGUgRDQtNDMgaW4gQVJNIERESSAwNDg3 Qi5hKS4gSXQgYWRkcyBmdXJ0aGVyIApyZXN0cmljdGlvbiB0byB0aGUgbWVtb3J5IGF0dHJpYnV0 ZXMgZGVmaW5lZCBieSB0aGUgR3Vlc3QgaW4gaXRzIApwYWdlLXRhYmxlcy4KClRoaXMgbWVhbnMg dGhhdCBldmVuIHRoZSBtZW1vcnkgYXR0cmlidXRlIHVzZWQgaW4gc3RhZ2UtMiBpcyBub3JtYWwg CmNhY2hlYWJsZSwgYSBndWVzdCBpcyBmcmVlIHRvIG1ha2UgaXQgbm9uLWNhY2hlYWJsZSB2aWEg c3RhZ2UtMSBwYWdlIAp0YWJsZS4gVGhpcyBpcyBub3QgcmVhbGx5IGNsZWFyIGluIHRoZSBkZXNj cmlwdGlvbiBvZiB0aGUgRE9NQ1RMIHdoYXQgaXMgCnRoZSByZWFsIHB1cnBvc2UuIElzIGl0IHJl c3RyaWN0aW5nIHBvc3NpYmlsaXR5IG9mIHRoZSBndWVzdD8KCk5vdywgbG9va2luZyBhdCB0aGUg ZGVzY3JpcHRpb24sIHRoaXMgZG9tY3RsIHdpbGwgYmUgY2FsbGVkIGFmdGVyIHdlIAptYXBwZWQg dGhlIFJBTSBpbiB0aGUgZ3Vlc3QgbWVtb3J5LiBTbyB5b3Ugd2lsbCBzd2l0Y2ggZnJvbSB3cml0 ZS1iYWNrIApjYWNoZWFibGUgdG8gYW5vdGhlciBtZW1vcnkgYXR0cmlidXRlLiBJIHRoaW5rIHRo aXMgd2lsbCByZXF1aXJlIGNhY2hlIAptYWludGFpbmFuY2UgdG8gcmVtb3ZlIHBvdGVudGlhbCBz dGFsbCBjYWNoZSBsaW5lLgoKRnVydGhlcm1vcmUsIHlvdSBkb24ndCBoYXZlIGFueSByZXN0cmlj dGlvbiBvbiB3aGVuIHRoaXMgZG9tY3RsIHdpbGwgYmUgCmNhbGxlZC4gSXQgd291bGQgYmUgcG9z c2libGUgdG8gY2FsbCBpdCB3aGVuIHRoZSBndWVzdCBpcyBydW5uaW5nIG9yIApjYWxsZWQgb24g YSByYW5nZSB3aXRoIG1lbW9yeSBhdHRyaWJ1dGUgYWxyZWFkeSBjaGFuZ2VkLiBUaGlzIHdpbGwg CnJlcXVpcmUgc29tZSB0aG91Z2h0cyBvbiBob3cgdG8gZG8gdGhlIGNhY2hlIG1haW50ZW5hbmNl LgoKRmluYWxseSwgWGVuIEFSTTY0IHdpbGwgYWx3YXlzIGhhdmUgdGhlIHdob2xlIFJBTSBtZW1v cnkgbWFwcGVkIGluIFhlbiAKd2l0aCB3cml0ZS1hbGxvY2F0ZSBtZW1vcnkgYXR0cmlidXRlLiBU aGlzIG1heSByZXN1bHQgYSBtZW1vcnkgYXR0cmlidXRlIAptaXNtYXRjaCBpZiB0aGUgcmVnaW9u IGlzIGFjY2Vzc2VkIGJ5IFhlbiAoc2VlIEIyLjgpLgoKVGhpcyBtYXkgdGFrZSBzb21ldGltZXMg dG8gZ2V0IHRoZSBpbXBsZW1lbnRhdGlvbiBvZiB0aGUgRE9NQ1RMIHJpZ2h0LiAKU28gSSB3b3Vs ZCByYXRoZXIgZm9jdXMgdG8gYmUgYWJsZSB0byBzaGFyZSBwYWdlIGJldHdlZW4gZ3Vlc3QgYW5k IGFuIApmdXR1cmUtcHJvb2YgdG9vbHN0YWNrIGludGVyZmFjZS4KCklmIHlvdSBzdGlsbCBoYXZl IHRpbWUgYXQgdGhlIGVuZCBvZiB0aGUgR1NPQywgeW91IGNhbiBsb29rIGF0IHVzaW5nIApkaWZm ZXJlbnQgbWVtb3J5IGF0dHJpYnV0ZXMKCkNoZWVycywKCi0tIApKdWxpZW4gR3JhbGwKCl9fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWls aW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hl bi1kZXZlbAo=