From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH 1/6] xen: extend XEN_DOMCTL_memory_mapping to handle cacheability Date: Wed, 27 Feb 2019 21:02:47 +0000 Message-ID: <3ee8d8d4-fbb6-dd38-e34a-1ac8f730339f@arm.com> References: <1551222427-21749-1-git-send-email-sstabellini@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1gz6Lt-0000bn-M5 for xen-devel@lists.xenproject.org; Wed, 27 Feb 2019 21:02:53 +0000 In-Reply-To: <1551222427-21749-1-git-send-email-sstabellini@kernel.org> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Stefano Stabellini , xen-devel@lists.xenproject.org Cc: Stefano Stabellini , JBeulich@suse.com, andrew.cooper3@citrix.com List-Id: xen-devel@lists.xenproject.org SGkgU3RlZmFubywKCk9uIDIvMjYvMTkgMTE6MDcgUE0sIFN0ZWZhbm8gU3RhYmVsbGluaSB3cm90 ZToKPiAgIHN0cnVjdCB4ZW5fZG9tY3RsX21lbW9yeV9tYXBwaW5nIHsKPiAgICAgICB1aW50NjRf YWxpZ25lZF90IGZpcnN0X2dmbjsgLyogZmlyc3QgcGFnZSAoaHZtIGd1ZXN0IHBoeXMgcGFnZSkg aW4gcmFuZ2UgKi8KPiAgICAgICB1aW50NjRfYWxpZ25lZF90IGZpcnN0X21mbjsgLyogZmlyc3Qg cGFnZSAobWFjaGluZSBwYWdlKSBpbiByYW5nZSAqLwo+ICAgICAgIHVpbnQ2NF9hbGlnbmVkX3Qg bnJfbWZuczsgICAvKiBudW1iZXIgb2YgcGFnZXMgaW4gcmFuZ2UgKD4wKSAqLwo+ICAgICAgIHVp bnQzMl90IGFkZF9tYXBwaW5nOyAgICAgICAvKiBhZGQgb3IgcmVtb3ZlIG1hcHBpbmcgKi8KPiAt ICAgIHVpbnQzMl90IHBhZGRpbmc7ICAgICAgICAgICAvKiBwYWRkaW5nIGZvciA2NC1iaXQgYWxp Z25lZCBzdHJ1Y3R1cmUgKi8KPiArICAgIHVpbnQzMl90IGNhY2hlX3BvbGljeTsgICAgICAvKiBj YWNoZWFiaWxpdHkgb2YgdGhlIG1lbW9yeSBtYXBwaW5nICovCgpMb29raW5nIGF0IHRoaXMgYW5k IHRoZSB3YXkgeW91IHVzZSBpdCwgdGhlIG5hbWluZyAiY2FjaGUiIGlzIHF1aXRlIApjb25mdXNp bmcuIE9uIEFybSwgdGhleSBhcmUgbWVtb3J5IHR5cGVzIChzZWUgQjIuNyAiTWVtb3J5IHR5cGVz IGFuZCAKYXR0cmlidXRlcyIgaW4gRERJIDA0ODdELmEpIGFuZCB0aGVuIHlvdSBtYXkgaGF2ZSBh dHRyaWJ1dGUgc3VjaCAKY2FjaGFiaWxpdHkgYXR0cmlidXRlICh3cml0ZS10aHJvdWdoLCB3cml0 ZS1iYWNrLi4uKSBvbiB0b3AuIFRoZSAKY2FjaGVhYmlsaXR5IGlzIGFsc28gbm90IGFwcGxpY2Fi bGUgZm9yICJkZXZpY2UgbWVtb3J5Ii4KCiJkZXZpY2UgbWVtb3J5IiBoYXZlIG90aGVyIGF0dHJp YnV0ZXMgcmVsYXRlZCB0byBnYXRoZXJpbmcsIHJlLW9yZGVyaW5nLi4uCgpTbyBhIGJldHRlciBu YW1pbmcgd291bGQgcHJvYmFibHkgYmUgIm1lbW9yeV9wb2xpY3kiLgoKRnVydGhlcm1vcmUsIHRo b3NlIHBvbGljaWVzIGFyZSBvbmx5IGZvciBjb25maWd1cmluZyBzdGFnZS0yLiBUaGUgCnJlc3Vs dGluZyBtZW1vcnkgdHlwZSBhbmQgYXR0cmlidXRlcyB3aWxsIGJlIHdoYXRldmVyIGlzIHRoZSBz dHJvbmdlc3QgCmJldHdlZW4gc3RhZ2UtMiBhbmQgc3RhZ2UtMSBhdHRyaWJ1dGVzLiBZb3UgY2Fu IHNlZSB0aGUgc3RhZ2UtMiAKYXR0cmlidXRlcyBhcyBhIHdheSB0byBnaXZlIG1vcmUgb3IgbGVz cyBmcmVlZG9tIHRvIHRoZSBndWVzdCBmb3IgCmNvbmZpZ3VyZSB0aGUgYXR0cmlidXRlcy4KCkZv ciBpbnN0YW5jZSwgYnkgdXNpbmcgcDJtX21taW9fZGlyZWN0X2RldiwgdGhlIHJlc3VsdGluZyBh dHRyaWJ1dGVzIAp3aWxsIGFsd2F5cyBiZSBEZXZpY2UtbkduUm5FIHdoYXRldmVyIGhvdyBzdGFn ZS0xIGhhcyBiZWVuIGNvbmZpZ3VyZWQuCgpJbiB0aGUgY2FzZSBvZiBwMm1fbW1pb19kaXJlY3Rf YyAoc2ltaWxhciB0byBwMm1fcmFtX3J3KS4gVGhlIGd1ZXN0IHdpbGwgCmJlIGZyZWUgdG8gY2hv c2Ugd2hhdGV2ZXIgcHJldHR5IG11Y2ggYW55IGF0dHJpYnV0ZXMgKGV2ZW4gRGV2aWNlLW5HblJu RSkuCgpZb3UgbWlnaHQgd29uZGVyIHdoeSB3ZSBkaWRuJ3QgZ2l2ZSBtb3JlIGZyZWVkb20gdG8g dGhlIGd1ZXN0IGZyb20gdGhlIApzdGFydC4gT25lIG9mIHRoZSByZWFzb24gaXMgaXQgaXMgcXVp dGUgdW5jbGVhciB3aGF0IGFyZSB0aGUgY29uc2VxdWVuY2UgCmlmIHlvdSBnaXZlIHRoYXQgZnJl ZWRvbSB0byB0aGUgZ3Vlc3QuIFdoZXRoZXIgdGhlcmUgbWlnaHQgYmUgaXNzdWVzIAp3aXRoIHRo ZSBkZXZpY2Ugd2hlbiB0aGUgYXR0cmlidXRlcyBhcmUgbm90IGNvcnJlY3QuCgpGdXJ0aGVybW9y ZSwgdGhlcmUgYXJlIG1vcmUgaGFuZGxpbmcgcmVxdWlyZWQgaW4gdGhlIGh5cGVydmlzb3IgYXMg aWYgCnRoZSBtZW1vcnkgY2FuIGJlIGNhY2hlZCwgeW91IHdpbGwgbmVlZCB0byBjbGVhciB0aGUg Y2FjaGUgaW4gb3JkZXIgdG8gCnByZXZlbnQgbGVha2FnZSB0byBhbm90aGVyIGRvbWFpbiBpZiB0 aGUgbWFwcGluZ3MgZ2V0IHJlYXNzaWduZWQuCgpGb3IgY29tcGxldGVuZXNzLCBJIHNob3VsZCBt ZW50aW9uIHRoZSBmZWF0dXJlIFMyRldCIHByZXNlbnQgaW4gQVJNdjguNCAKYW5kIG9ud2FyZHMu IEZyb20gbXkgdW5kZXJzdGFuZGluZywgdGhpcyBjb3VsZCBiZSB1c2VkIHRvIGZvcmNlIApyZXN1 bHRpbmcgbWVtb3J5IHR5cGUuIEkgYW0gbm90IHN1Z2dlc3RpbmcgdG8gaW1wbGVtZW50IGl0IG5v dywgYnV0IHdlIApzaG91bGQga2VlcCBpdCBpbiBteSBtaW5kIHdoaWxlIHdyaXRpbmcgdGhlIGlu dGVyZmFjZSBleHBvc2VkIGluIGxpYnhsLgoKVG8gc3VtbWFyaXplLCBpZiB3ZSBnbyBhaGVhZCwg d2Ugc2hvdWxkIHRyeSB0byBtYWtlIHRoZSBkb2N1bWVudGF0aW9uIAptb3JlIGNsZWFyZXIgb24g d2hhdCBlYWNoIHBvbGljeSBtZWFucyBhbmQgdGhlIGltcGxpY2F0aW9ucyBvbiB0aGUgCmd1ZXN0 LiBJIHRoaW5rIHdlIHNob3VsZCBhbHNvIG1hcmsgdGhpcyBhIG5vdCBzZWN1cml0eSBzdXBwb3J0 ZWQgYmVjYXVzZSAKaXQgdGhlIHVua25vd24gaW50ZXJhY3Rpb25zIHdpdGggZGV2aWNlcy4KCkNo ZWVycywKCi0tIApKdWxpZW4gR3JhbGwKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhl bnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5m by94ZW4tZGV2ZWw=