From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH 0/3] xen/arm: Inject an exception to the guest rather than crashing it Date: Tue, 30 Jan 2018 19:23:56 +0000 Message-ID: <623e02e3-bfeb-7c42-bf09-af683ce99cc6@citrix.com> References: <20180130161433.6910-1-julien.grall@arm.com> <864d6a7f-00c7-5ef5-51f0-e7f74b35ca70@arm.com> <381dfde4-bf8e-0008-3c41-a7f8b143b721@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-GB List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Stefano Stabellini , Julien Grall Cc: andre.przywara@linaro.org, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gMzAvMDEvMTggMTk6MjEsIFN0ZWZhbm8gU3RhYmVsbGluaSB3cm90ZToKPiBPbiBUdWUsIDMw IEphbiAyMDE4LCBKdWxpZW4gR3JhbGwgd3JvdGU6Cj4+IEhpLAo+Pgo+PiBPbiAzMC8wMS8xOCAx ODoyOSwgQW5kcmV3IENvb3BlciB3cm90ZToKPj4+IE9uIDMwLzAxLzE4IDE3OjAwLCBKdWxpZW4g R3JhbGwgd3JvdGU6Cj4+Pj4KPj4+PiBPbiAzMC8wMS8xOCAxNjozOCwgQW5kcmV3IENvb3BlciB3 cm90ZToKPj4+Pj4gT24gMzAvMDEvMTggMTY6MTQsIEp1bGllbiBHcmFsbCB3cm90ZToKPj4+Pj4+ IEhpIGFsbCwKPj4+Pj4+Cj4+Pj4+PiBUaGlzIHNtYWxsIHNlcmllcyByZXBsYWNlcyBhbGwgY2Fs bCB0byBkb21haW5fY3Jhc2hfc3luY2hyb25vdXMgYnkKPj4+Pj4+IGluamVjdGluZwo+Pj4+Pj4g YW4gZXhjZXB0aW9uIHRvIHRoZSBndWVzdC4KPj4+Pj4+Cj4+Pj4+PiBUaGlzIHdpbGwgcmVzdWx0 IHRvIGEgbmljZXIgdHJhY2UgZnJvbSB0aGUgZ3Vlc3QgKG5vIG5lZWQgdG8KPj4+Pj4+IG1hbnVh bGx5IHdhbGsKPj4+Pj4+IHRoZSBzdGFjaykgYW5kIGdpdmUgYSBjaGFuY2UgdG8gdGhlIGd1ZXN0 IHRvIGdpdmUgYSBiaXQgbW9yZQo+Pj4+Pj4gaW5mb3JtYXRpb24gb24KPj4+Pj4+IHdoYXQgaXQg d2FzIGRvaW5nLgo+Pj4+Pj4KPj4+Pj4+IENoZWVycywKPj4+Pj4+Cj4+Pj4+PiBKdWxpZW4gR3Jh bGwgKDMpOgo+Pj4+Pj4gIMKgwqAgeGVuL2FybTogaW86IERpc3Rpbmd1aXNoIHVuaGFuZGxlZCBJ TyBmcm9tIGFib3J0ZWQgb25lCj4+Pj4+PiAgwqDCoCB4ZW4vYXJtOiBEb24ndCBjcmFzaCBkb21h aW4gb24gYmFkIE1NSU8gZW11bGF0aW9uCj4+Pj4+PiAgwqDCoCB4ZW4vYXJtOiBEb24ndCBjcmFz aCB0aGUgZG9tYWluIG9uIGludmFsaWQgSFZDIGltbWVkaWF0ZQo+Pj4+PiBUaGFua3MuCj4+Pj4+ Cj4+Pj4+IEkgZG9uJ3QgZmVlbCBxdWFsaWZpZWQgdG8gcmV2aWV3IHRoZXNlLCBidXQgc29tZSBu b3Rlcy4KPj4+Pj4KPj4+Pj4gUGF0Y2ggMS7CoCBzL2F2b2RpL2F2b2lkLyBpbiB0aGUgY29tbWl0 IG1lc3NhZ2UKPj4+Pj4KPj4+Pj4gUGF0Y2hlcyAyIGFuZCAzLsKgIFlvdSBwcm9iYWJseSB3YW50 IHRvIGNvbnZlcnQgdGhlIHByaW50a3MgdG8KPj4+Pj4gZ2RwcmludGsoKXMsIG90aGVyd2lzZSBn dWVzdHMgY2FuIGNob2tlIHVwIHRoZSByYXRlbGltaXRlZCBsb2cuwqAgRG9pbmcKPj4+Pj4gc28g d2lsbCBhbHNvIG1lYW4gdGhhdCB0aGUgdmNwdSB3aWxsIGJlIGlkZW50aWZpZWQgY29uc2lzdGVu dGx5LCB3aGljaAo+Pj4+PiBpdCBpc24ndCBjdXJyZW50bHkuCj4+Pj4gV2UgZGlkbid0IHVzZSBn KnByaW50ayBiZWNhdXNlIGl0IHdvdWxkIGJlIG1vcmUgY29uZnVzaW5nIHRvIHByaW50IHRoZQo+ Pj4+IGN1cnJlbnQgdkNQVSBpbiBzb21lIGNhc2VzIChlLmcgd2hlbiBhY2Nlc3NpbmcgdGhlIHJl LWRpc3RyaWJ1dG9yIG9mCj4+Pj4gYW5vdGhlciB2Q1BVKSBvciBkb2VzIG5vdCBtYXR0ZXIgKGUu ZyBmb3IgSVRTKS4KPj4+IEluIHRoZSBmb3JtZXIgY2FzZSwgeW91J2Qgd2FudCB0byBwcmludCBi b3RoIGN1cnJlbnQsIGFuZCB0aGUgdGFyZ2V0Cj4+PiB2Y3B1LsKgIFRoZSBsYXR0ZXIgc3RpbGwg bWF0dGVycyB3aGF0IGN1cnJlbnQgaXMgaWYgc29tZXRoaW5nIGdvZXMgd3JvbmcuCj4+Pgo+Pj4g V2UgaGF2ZSBwbGVudHkgb2Ygc2ltaWxhciBjYXNlcyBpbiB4ODYsIGJ1dCBhdCB0aGUgcG9pbnQg eW91IGFyZQo+Pj4gcHJpbnRpbmcgYW4gZGlhZ25vc3RpYyBtZXNzYWdlLCBpZ25vcmluZyBjdXJy ZW50IGlzIGFsbW9zdCBhbHdheXMgdGhlCj4+PiB3cm9uZyB0aGluayB0byBkby4KPj4gSSB3aWxs IGxvb2sgYXQgaXQgb24gYW5vdGhlciBzZXJpZXMuCj4+Cj4+Pj4gVGhlIHByb2JsZW0gd2l0aCB0 aGUgZGVidWcgdmVyc2lvbiBpcyB0aG9zZSBpbmZvcm1hdGlvbiBhcmUgYWN0dWFsbHkKPj4+PiBx dWl0ZSB1c2VmdWwgaW4gbm9uLWRlYnVnIGJ1aWxkLiBXZSBmb3VuZCBxdWl0ZSBhIGZldyBpc3N1 ZXMgdGhhbmtzIHRvCj4+Pj4gdGhlbS4KPj4+Pgo+Pj4+IEkgdGhpbmsgaXQgd291bGQgbWFrZSBt b3JlIHNlbnNlIGZvciBYZW4gdG8gcHJvdmlkZSBwZXItZ3Vlc3QKPj4+PiByYXRlbGltaXRlZCB0 aGFuIGhpZGluZyB0aG9zZSBtZXNzYWdlcyBpbiBub24tZGVidWcgYnVpbGQuCj4+PiBQZXIgZ3Vl c3QgaXMgcXVpdGUgYSBsb3QgbW9yZSBjb21wbGljYXRlZCB0aGFuIGdsb2JhbCwgYW5kIHdvdWxk IHN0aWxsCj4+PiByZXF1aXJlIGEgZ2xvYmFsIGxpbWl0IHRvIHByZXZlbnQgYSBjb25jZXJ0ZWQg YXR0YWNrIGZyb20gbXVsdGlwbGUKPj4+IGd1ZXN0cyB0byBhdm9pZCBEb1NpbmcgdGhlIHN5c3Rl bS4KPj4+Cj4+PiBEZWJ1ZyB2cyB1bmlsYXRlcmFsIGlzIHlvdXIgcHJlcm9nYXRpdmUgYXMgYSBt YWludGFpbmVyLCBidXQgYXMgeW91J3ZlCj4+PiBzYWlkIHlvdXJzZWxmLCB0aGUgYXJlIHVzZWQg Zm9yIGRlYnVnZ2luZyBwdXJwb3Nlcywgd2hpY2ggcHJvdmVzIG15IHBvaW50Lgo+PiBTbyBvbiB4 ODYsIHlvdSBhbHdheXMgcmVxdWVzdCB0aGUgdXNlciB0byByZXByb2R1Y2UgaXQgd2l0aCBkZWJ1 ZyBidWlsZAo+PiBlbmFibGU/Cj4+Cj4+IFN0ZWZhbm8sIHdoYXQncyB5b3VyIG9waW5pb24gaGVy ZT8KPiBJIHRoaW5rIGl0IHdvdWxkIGJlIGdyZWF0IHRvIGhhdmUgcGVyLWd1ZXN0IHJhdGUgbGlt aXRpbmcuCj4KPiBPbiBBUk0sIGl0IHdvdWxkIGJlIGltcG9zc2libGUgdG8gYXNrIHVzZXJzIHRv IHJlcHJvIHdpdGggZGVidWcgZW5hYmxlZCwKPiBnaXZlbiB0aGF0IG1hbnkgZGVwbG95bWVudHMg YXJlIGVtYmVkZGVkIChzZXQtdG9wIGJveGVzLCBldGMpLgo+Cj4gSSB0aGluayBpdCBpcyBPSyB0 byBrZWVwIHRoZSBYRU5MT0dfREVCVUcsIHRoZXkgc2hvdWxkIGJlIGZpbHRlcmVkIG91dAo+IGJ5 IGxvZ2x2bC4gQnV0IHdlIG5lZWQgdG8gYmUgY2FyZWZ1bCBhYm91dCB0aGUgb3RoZXJzLiBXZSBt aWdodCB3YW50IHRvCj4gY29udmVydCB0aGUgWEVOTE9HX1dBUk5JTkcgaW4gdHJhcHMuYyB0byBY RU5MT0dfREVCVUc6IHRoZXkgYXJlIHdhcm5pbmcKPiBhYm91dCBndWVzdHMgbWlzYmVoYXZpbmcs IGJ1dCBmcm9tIHRoZSBoeXBlcnZpc29yIHBvaW50IG9mIHZpZXcsIGl0J3Mgbm90Cj4gYSBwcm9i bGVtLCBndWVzdHMgY2FuIHNob290IHRoZW1zZWx2ZXMgaWYgdGhleSB3YW50IHRvOyBpdCdzIE9L LgoKVGhpcyBpcyBhIHZhbGlkIGFyZ3VtZW50LCBidXQgdG8gZG8gaXQgY29uc2lzdGVudGx5LCB5 b3UnbGwgd2FudCB0bwpwcm92aWRlIGFuIGFyY2gtc3BlY2lmaWMgdmVyc2lvbiBvZiBnZHByaW50 aygpIHNvIHRoYXQgdGhlIGNvbW1vbiBjb2RlCnByaW50aygpcyBkb24ndCBldmFwb3JhdGUgaW50 byAvZGV2L251bGwuCgp+QW5kcmV3CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5w cm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8v eGVuLWRldmVs