From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andre Przywara Subject: Re: [RFC PATCH 04/24] ARM: GICv3 ITS: map ITS command buffer Date: Thu, 10 Nov 2016 16:04:48 +0000 Message-ID: References: <20160928182457.12433-1-andre.przywara@arm.com> <20160928182457.12433-5-andre.przywara@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1c4rpq-00086P-Tp for xen-devel@lists.xenproject.org; Thu, 10 Nov 2016 16:04:19 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini Cc: xen-devel@lists.xenproject.org, Julien Grall List-Id: xen-devel@lists.xenproject.org SGksCgpPbiAyNy8xMC8xNiAwMDowMywgU3RlZmFubyBTdGFiZWxsaW5pIHdyb3RlOgo+IE9uIFdl ZCwgMjggU2VwIDIwMTYsIEFuZHJlIFByenl3YXJhIHdyb3RlOgo+PiBJbnN0ZWFkIG9mIGRpcmVj dGx5IG1hbmlwdWxhdGluZyB0aGUgdGFibGVzIGluIG1lbW9yeSwgYW4gSVRTIGRyaXZlcgo+PiBz ZW5kcyBjb21tYW5kcyB2aWEgYSByaW5nIGJ1ZmZlciB0byB0aGUgSVRTIGgvdyB0byBjcmVhdGUg b3IgYWx0ZXIgdGhlCj4+IExQSSBtYXBwaW5ncy4KPj4gQWxsb2NhdGUgbWVtb3J5IGZvciB0aGF0 IGJ1ZmZlciBhbmQgdGVsbCB0aGUgSVRTIGFib3V0IGl0IHRvIGJlIGFibGUKPj4gdG8gc2VuZCBJ VFMgY29tbWFuZHMuCj4+Cj4+IFNpZ25lZC1vZmYtYnk6IEFuZHJlIFByenl3YXJhIDxhbmRyZS5w cnp5d2FyYUBhcm0uY29tPgo+PiAtLS0KPj4gIHhlbi9hcmNoL2FybS9naWMtaXRzLmMgICAgICAg IHwgMjUgKysrKysrKysrKysrKysrKysrKysrKysrKwo+PiAgeGVuL2luY2x1ZGUvYXNtLWFybS9n aWMtaXRzLmggfCAgMSArCj4+ICAyIGZpbGVzIGNoYW5nZWQsIDI2IGluc2VydGlvbnMoKykKPj4K Pj4gZGlmZiAtLWdpdCBhL3hlbi9hcmNoL2FybS9naWMtaXRzLmMgYi94ZW4vYXJjaC9hcm0vZ2lj LWl0cy5jCj4+IGluZGV4IDQwMjM4YTIuLmM4YTdhN2UgMTAwNjQ0Cj4+IC0tLSBhL3hlbi9hcmNo L2FybS9naWMtaXRzLmMKPj4gKysrIGIveGVuL2FyY2gvYXJtL2dpYy1pdHMuYwo+PiBAQCAtMTgs NiArMTgsNyBAQAo+PiAgCj4+ICAjaW5jbHVkZSA8eGVuL2NvbmZpZy5oPgo+PiAgI2luY2x1ZGUg PHhlbi9saWIuaD4KPj4gKyNpbmNsdWRlIDx4ZW4vZXJyLmg+Cj4+ICAjaW5jbHVkZSA8eGVuL2Rl dmljZV90cmVlLmg+Cj4+ICAjaW5jbHVkZSA8eGVuL2xpYmZkdC9saWJmZHQuaD4KPj4gICNpbmNs dWRlIDxhc20vcDJtLmg+Cj4+IEBAIC01Niw2ICs1NywyNiBAQCBzdGF0aWMgdWludDY0X3QgZW5j b2RlX3BoeXNfYWRkcihwYWRkcl90IGFkZHIsIGludCBwYWdlX2JpdHMpCj4+ICAgICAgcmV0dXJu IHJldCB8IChhZGRyICYgR0VOTUFTSyg1MSwgNDgpKSA+PiAoNDggLSAxMik7Cj4+ICB9Cj4+ICAK Pj4gK3N0YXRpYyB2b2lkICpnaWN2M19tYXBfY2Jhc2VyKHZvaWQgX19pb21lbSAqY2Jhc2VyZWcp Cj4gCj4gU2hvdWxkbid0IGl0IGJlIGl0c19tYXBfY2Jhc2VyPwoKWWVzLgoKPj4gK3sKPj4gKyAg ICB1aW50NjRfdCBhdHRyLCByZWc7Cj4+ICsgICAgdm9pZCAqYnVmZmVyOwo+PiArCj4+ICsgICAg YXR0ciAgPSBHSUNfQkFTRVJfSW5uZXJTaGFyZWFibGUgPDwgR0lUU19CQVNFUl9TSEFSRUFCSUxJ VFlfU0hJRlQ7Cj4+ICsgICAgYXR0ciB8PSBHSUNfQkFTRVJfQ0FDSEVfU2FtZUFzSW5uZXIgPDwg R0lUU19CQVNFUl9PVVRFUl9DQUNIRUFCSUxJVFlfU0hJRlQ7Cj4+ICsgICAgYXR0ciB8PSBHSUNf QkFTRVJfQ0FDSEVfUmFXYVdiIDw8IEdJVFNfQkFTRVJfSU5ORVJfQ0FDSEVBQklMSVRZX1NISUZU Owo+PiArCj4+ICsgICAgYnVmZmVyID0gYWxsb2NfeGVuaGVhcF9wYWdlcygwLCAwKTsKPj4gKyAg ICBpZiAoICFidWZmZXIgKQo+PiArICAgICAgICByZXR1cm4gRVJSX1BUUigtRU5PTUVNKTsKPiAK PiBXZSBoYXZlbid0IHVzZSBtdWNoIEVSUl9QVFIgb24gYXJtIHNvIGZhci4gSW4gdGhpcyBjYXNl IEknZCBqdXN0IHJldHVybgo+IE5VTEwuCgpJbiB0aGlzIGNhc2UgSSBhZ3JlZSwgdGhvdWdoICJ3 ZSBoYXZlbid0IHVzZXMgaXQgbXVjaCIgaXNuJ3QgcmVhbGx5IGEKZ29vZCBhcmd1bWVudCA7LSkK CkNoZWVycywKQW5kcmUuCgo+PiArCj4+ICsgICAgLyogV2UgdXNlIGV4YWN0bHkgb25lIDRLIHBh Z2UsIHNvIHRoZSAiU2l6ZSIgZmllbGQgaXMgMC4gKi8KPj4gKyAgICByZWcgPSBhdHRyIHwgQklU KDYzKSB8ICh2aXJ0X3RvX21hZGRyKGJ1ZmZlcikgJiBHRU5NQVNLKDUxLCAxMikpOwo+IAo+IFNo b3VsZG4ndCB0aGUgbWFzayBiZSBHRU5NQVNLKDQ3LCAxMik/IE1heWJlIEkgaGF2ZSBhbiBvbGQg c3BlYwo+IHZlcnNpb24uCj4gCj4gCj4+ICsgICAgd3JpdGVxX3JlbGF4ZWQocmVnLCBjYmFzZXJl Zyk7Cj4+ICsKPj4gKyAgICByZXR1cm4gYnVmZmVyOwo+PiArfQo+PiArCj4+ICBzdGF0aWMgaW50 IGdpY3YzX21hcF9iYXNlcih2b2lkIF9faW9tZW0gKmJhc2VyZWcsIHVpbnQ2NF90IHJlZ2MsIGlu dCBucl9pdGVtcykKPj4gIHsKPj4gICAgICB1aW50NjRfdCBhdHRyOwo+PiBAQCAtMTQ5LDYgKzE3 MCwxMCBAQCBpbnQgZ2ljdjNfaXRzX2luaXQoc3RydWN0IGhvc3RfaXRzICpod19pdHMpCj4+ICAg ICAgICAgIH0KPj4gICAgICB9Cj4+ICAKPj4gKyAgICBod19pdHMtPmNtZF9idWYgPSBnaWN2M19t YXBfY2Jhc2VyKGh3X2l0cy0+aXRzX2Jhc2UgKyBHSVRTX0NCQVNFUik7Cj4+ICsgICAgaWYgKCBJ U19FUlIoaHdfaXRzLT5jbWRfYnVmKSApCj4+ICsgICAgICAgIHJldHVybiBQVFJfRVJSKGh3X2l0 cy0+Y21kX2J1Zik7Cj4+ICsKPj4gICAgICByZXR1cm4gMDsKPj4gIH0KPj4gIAo+PiBkaWZmIC0t Z2l0IGEveGVuL2luY2x1ZGUvYXNtLWFybS9naWMtaXRzLmggYi94ZW4vaW5jbHVkZS9hc20tYXJt L2dpYy1pdHMuaAo+PiBpbmRleCA1ODliODg5Li5iMmEwMDNmIDEwMDY0NAo+PiAtLS0gYS94ZW4v aW5jbHVkZS9hc20tYXJtL2dpYy1pdHMuaAo+PiArKysgYi94ZW4vaW5jbHVkZS9hc20tYXJtL2dp Yy1pdHMuaAo+PiBAQCAtNjksNiArNjksNyBAQCBzdHJ1Y3QgaG9zdF9pdHMgewo+PiAgICAgIHBh ZGRyX3QgYWRkcjsKPj4gICAgICBwYWRkcl90IHNpemU7Cj4+ICAgICAgdm9pZCBfX2lvbWVtICpp dHNfYmFzZTsKPj4gKyAgICB2b2lkICpjbWRfYnVmOwo+PiAgfTsKPj4gIAo+PiAgZXh0ZXJuIHN0 cnVjdCBsaXN0X2hlYWQgaG9zdF9pdHNfbGlzdDsKPj4gLS0gCj4+IDIuOS4wCj4+Cj4gCgpfX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFp bGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94 ZW4tZGV2ZWwK