From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH 18/22] xen/arm: p2m: Rework the context switch to another VTTBR in flush_tlb_domain Date: Wed, 27 Jul 2016 11:22:39 +0100 Message-ID: <4d38135a-4567-34e0-3580-b951f6f695a6@arm.com> References: <1469031064-23344-1-git-send-email-julien.grall@arm.com> <1469031064-23344-19-git-send-email-julien.grall@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: 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: proskurin@sec.in.tum.de, steve.capper@arm.com, wei.chen@linaro.org, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org SGkgU3RlZmFubywKCk9uIDI3LzA3LzE2IDAyOjEyLCBTdGVmYW5vIFN0YWJlbGxpbmkgd3JvdGU6 Cj4gT24gV2VkLCAyMCBKdWwgMjAxNiwgSnVsaWVuIEdyYWxsIHdyb3RlOgo+PiBUaGUgY3VycmVu dCBpbXBsZW1lbnRhdGlvbiBvZiBmbHVzaF90bGJfZG9tYWluIGlzIHJlbHlpbmcgb24gdGhlIGRv bWFpbgo+PiB0byBoYXZlIGEgc2luZ2xlIHAybS4gV2l0aCB0aGUgdXBjb21pbmcgZmVhdHVyZSBh bHRwMm0sIGEgc2luZ2xlIGRvbWFpbgo+PiBtYXkgaGF2ZSBkaWZmZXJlbnQgcDJtLiBTbyB3ZSB3 b3VsZCBuZWVkIHRvIHN3aXRjaCB0byB0aGUgY29ycmVjdCBwMm0gaW4KPj4gb3JkZXIgdG8gZmx1 c2ggdGhlIFRMQnMuCj4+Cj4+IFJhdGhlciB0aGFuIGNoZWNraW5nIHdoZXRoZXIgdGhlIGRvbWFp biBpcyBub3QgdGhlIGN1cnJlbnQgZG9tYWluLCBjaGVjawo+PiB3aGV0aGVyIHRoZSBWVFRCUiBp cyBkaWZmZXJlbnQuIFRoZSByZXN1bHRpbmcgYXNzZW1ibHkgY29kZSBpcyBtdWNoCj4+IHNtYWxs ZXI6IGZyb20gMzggaW5zdHJ1Y3Rpb25zICgrIDIgZnVuY3Rpb25zIGNhbGwpIHRvIDIyIGluc3Ry dWN0aW9ucy4KPgo+IFRoYXQncyB0cnVlIGJ1dCBTWVNSRUcgcmVhZHMgYXJlIG1vcmUgZXhwZW5z aXZlIHRoYW4gcmVndWxhcgo+IGluc3RydWN0aW9ucy4KClRoaXMgYXJndW1lbnQgaXMgbm90IHJl YWxseSB0cnVlLiBUaGUgQVJNIEFSTSAoRDctMTg3OSBpbiBBUk0gRERJIAowNDg3QS5qKSBzYXlz OiAiUmVhZHMgb2YgdGhlIFN5c3RlbSByZWdpc3RlcnMgY2FuIG9jY3VyIG91dCBvZiBvcmRlciAK d2l0aCByZXNwZWN0IHRvIGVhcmxpZXIgaW5zdHJ1Y3Rpb25zIGV4ZWN1dGVkIG9uIHRoZSBzYW1l IFBFLCBwcm92aWRlZCAKdGhhdCBhbnkgZGF0YSBkZXBlbmRlbmNpZXMgYmV0d2VlbiB0aGUgaW5z dHJ1Y3Rpb25zIGFyZSByZXNwZWN0ZWQiLiBTbyAKSXQgd2lsbCBkZXBlbmQgb24gaG93IHRoZSBt aWNyby1hcmNoaXRlY3R1cmUgaW1wbGVtZW50ZWQgYWNjZXNzIHRvIFNZU1JFRy4KCkhvd2V2ZXIs IHRoZSBjdXJyZW50IGNvZGUgYWxyZWFkeSBjb250YWlucyBwbGVudHkgb2YgU1lTUkVHIHJlYWQg YWNjZXNzIAoodmlhIHRoZSBtYWNybyBjdXJyZW50IHVzaW5nIFRQSURSX0VMMikuIFNvIHRoZSBu dW1iZXIgb2YgU1lTUkVHIAphY2Nlc3NlcyBzdGF5IGV4YWN0bHkgdGhlIHNhbWUuCgpJIGFsc28g Zm9yZ290IHRvIG1lbnRpb24gdGhhdCB0aGUgbnVtYmVyIG9mIGluc3RydWN0aW9ucyBpbiB0aGUg ZnVuY3Rpb24gCmNhbGwgKDEwIGluc3RydWN0aW9ucykuIFNvIHdlIGFyZSBkb3duIGZyb20gNTgg aW5zdHJ1Y3Rpb25zIHRvIDIyIAppbnN0cnVjdGlvbnMuCgpUaGVyZWZvcmUsIHNtYWxsZXIgY29k ZSBhbmQgbGlrZWx5IGJldHRlciBwZXJmb3JtYW5jZS4KCj4KPgo+PiBTaWduZWQtb2ZmLWJ5OiBK dWxpZW4gR3JhbGwgPGp1bGllbi5ncmFsbEBhcm0uY29tPgo+PiAtLS0KPj4gIHhlbi9hcmNoL2Fy bS9wMm0uYyB8IDE4ICsrKysrKysrKysrLS0tLS0tLQo+PiAgMSBmaWxlIGNoYW5nZWQsIDExIGlu c2VydGlvbnMoKyksIDcgZGVsZXRpb25zKC0pCj4+Cj4+IGRpZmYgLS1naXQgYS94ZW4vYXJjaC9h cm0vcDJtLmMgYi94ZW4vYXJjaC9hcm0vcDJtLmMKPj4gaW5kZXggZDFiNjAwOS4uMDE1YzFlOCAx MDA2NDQKPj4gLS0tIGEveGVuL2FyY2gvYXJtL3AybS5jCj4+ICsrKyBiL3hlbi9hcmNoL2FybS9w Mm0uYwo+PiBAQCAtMTUxLDI0ICsxNTEsMjggQEAgdm9pZCBwMm1fcmVzdG9yZV9zdGF0ZShzdHJ1 Y3QgdmNwdSAqbikKPj4KPj4gIHZvaWQgZmx1c2hfdGxiX2RvbWFpbihzdHJ1Y3QgZG9tYWluICpk KQo+PiAgewo+PiArICAgIHN0cnVjdCBwMm1fZG9tYWluICpwMm0gPSAmZC0+YXJjaC5wMm07Cj4+ ICAgICAgdW5zaWduZWQgbG9uZyBmbGFncyA9IDA7Cj4+ICsgICAgdWludDY0X3Qgb3Z0dGJyOwo+ Pgo+PiAgICAgIC8qCj4+IC0gICAgICogVXBkYXRlIHRoZSBWVFRCUiBpZiBuZWNlc3Nhcnkgd2l0 aCB0aGUgZG9tYWluIGQuIEluIHRoaXMgY2FzZSwKPj4gLSAgICAgKiBpdCdzIG9ubHkgbmVjZXNz YXJ5IHRvIGZsdXNoIFRMQnMgb24gZXZlcnkgQ1BVcyB3aXRoIHRoZSBjdXJyZW50IFZNSUQKPj4g LSAgICAgKiAob3VyIGRvbWFpbikuCj4+ICsgICAgICogQVJNIG9ubHkgcHJvdmlkZXMgYW4gaW5z dHJ1Y3Rpb24gdG8gZmx1c2ggVExCcyBmb3IgdGhlIGN1cnJlbnQKPj4gKyAgICAgKiBWTUlELiBT byBzd2l0Y2ggdG8gdGhlIFZUVEJSIG9mIGEgZ2l2ZW4gUDJNIGlmIGRpZmZlcmVudC4KPj4gICAg ICAgKi8KPj4gLSAgICBpZiAoIGQgIT0gY3VycmVudC0+ZG9tYWluICkKPj4gKyAgICBvdnR0YnIg PSBSRUFEX1NZU1JFRzY0KFZUVEJSX0VMMik7Cj4+ICsgICAgaWYgKCBvdnR0YnIgIT0gcDJtLT52 dHRiciApCj4+ICAgICAgewo+PiAgICAgICAgICBsb2NhbF9pcnFfc2F2ZShmbGFncyk7Cj4+IC0g ICAgICAgIHAybV9sb2FkX1ZUVEJSKGQpOwo+PiArICAgICAgICBXUklURV9TWVNSRUc2NChwMm0t PnZ0dGJyLCBWVFRCUl9FTDIpOwo+PiArICAgICAgICBpc2IoKTsKPj4gICAgICB9Cj4+Cj4+ICAg ICAgZmx1c2hfdGxiKCk7Cj4+Cj4+IC0gICAgaWYgKCBkICE9IGN1cnJlbnQtPmRvbWFpbiApCj4+ ICsgICAgaWYgKCBvdnR0YnIgIT0gUkVBRF9TWVNSRUc2NChWVFRCUl9FTDIpICkKPgo+IFlvdSBz aG91bGQgYmUgYWJsZSB0byByZW1vdmUgdGhpcyBzZWNvbmQgU1lTUkVHIHJlYWQgYW5kIG9wdGlt aXplIHRoZQo+IGNvZGUgZnVydGhlci4KCkkgc2hvdWxkIGJlIGFibGUsIGhvd2V2ZXIgSSB0aGlu ayBpdCB3aWxsIG5vdCBicmluZyBtdWNoIG1vcmUgCm9wdGltaXphdGlvbiBoZXJlIGJ1dCBvYmZ1 c2NhdGluZyBhIGJpdCBtb3JlIHRoZSBjb2RlLgoKUmVnYXJkcywKCi0tIApKdWxpZW4gR3JhbGwK Cl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZl bCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5vcmcKaHR0cHM6Ly9saXN0cy54ZW4u b3JnL3hlbi1kZXZlbAo=