From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: questions of vm save/restore on arm64 Date: Fri, 3 Jun 2016 12:02:27 +0100 Message-ID: <575163C3.4050506@arm.com> References: <5f28430f-50ee-7d5a-2308-0d16f116ab0e@gmail.com> <5750269F.90305@arm.com> <085e1ec7-cfe7-00b6-d8da-a3f66eddf9ff@gmail.com> <575158F6.5010208@arm.com> <65ae2d4c-783c-e012-076a-907ac02ebb16@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <65ae2d4c-783c-e012-076a-907ac02ebb16@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Chenxiao Zhao , Stefano Stabellini Cc: "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org SGVsbG8sCgpGaXJzdCB0aGluZywgdGhlIHRpbWUgaW4gdGhlIG1haWwgaGVhZGVycyBzZWVtcyB0 byBiZSB3cm9uZy4gTWF5YmUgCmJlY2F1c2Ugb2YgYSB3cm9uZyB0aW1lem9uZT8KCkkgZ290OiAw NC8wNi8xNiAwMjozMiBob3dldmVyIHdlIGFyZSBzdGlsbCB0aGUgM3JkIGluIG15IHRpbWV6b25l LgoKT24gMDQvMDYvMTYgMDI6MzIsIENoZW54aWFvIFpoYW8gd3JvdGU6Cj4KPgo+IE9uIDYvMy8y MDE2IDM6MTYgQU0sIEp1bGllbiBHcmFsbCB3cm90ZToKPj4gSGVsbG8sCj4+Cj4+IE9uIDAzLzA2 LzE2IDE4OjA1LCBDaGVueGlhbyBaaGFvIHdyb3RlOgo+Pj4gSSBmaW5hbGx5IGZvdW5kIG91dCB0 aGF0IHRoZSBwcm9ibGVtIGlzIHRoYXQgdGhlIHRvb2xzdGFjayBkaWQgbm90IGdldAo+Pj4gY29y cmV0IHAybV9zaXplIHdoaWxlIHNlbmRpbmcgYWxsIHBhZ2VzIG9uIHNhdmUoYWx3YXlzIGJlIHpl cm8pLiBBZnRlciBJCj4+PiBmaXhlZCB0aGF0LCB0aGUgZ3Vlc3QgY291bGQgYmUgcmVzdG9yZWQg YnV0IGd1ZXN0IGtlcm5lbCBjYXVnaHQKPj4+IGhhbmRsZV9tbV9mYXVsdCgpLgo+Pj4KPj4+IHdo ZXJlIGRvIHlvdSB0aGluayBJJ20gZ29pbmcgdG8gaW52ZXN0aWdhdGUsIGd1ZXN0IGtlcm5lbCBo aWJlcm5hdGlvbgo+Pj4gcmVzdG9yZSBvciB4ZW4/Cj4+Cj4+IFRoZSBoaWJlcm5hdGlvbiBzdXBw b3J0IGZvciBBUk02NCBoYXMgb25seSBiZWVuIG1lcmdlZCByZWNlbnRseSBpbiB0aGUKPj4ga2Vy bmVsLiBXaGljaCBrZXJuZWwgYXJlIHlvdSB1c2luZz8KPgo+IEhpIEp1bGllbiwKPgo+IEknbSB1 c2luZyBhIGxpbmFybyBwb3J0ZWQgTGludXgga2VybmVsIDQuMSBmb3IgaGlrZXkgZnJvbSB0aGlz IGxpbmsuCj4KPiBodHRwczovL2dpdGh1Yi5jb20vOTZib2FyZHMvbGludXgvdHJlZS9hbmRyb2lk LWhpa2V5LWxpbmFyby00LjEKPgo+IEkgYWxzbyBhcHBsaWVkIGZvbGxvd2luZyBwYXRjaGVzIHRv IG1ha2UgdGhlIGtlcm5lbCBzdXBwb3J0IGhpYmVybmF0aW9uLgoKVGhpcyBsb29rcyB0aGUgd3Jv bmcgd2F5IHRvIGRvIGl0IGFzIHRoaXMgc2VyaWVzIG1heSByZXF1aXJlcyBzb21lIApwYXRjaGVz IHdoaWNoIGhhdmUgYmVlbiB1cHN0cmVhbWVkIGJlZm9yZSBoYW5kLgoKTGludXggdXBzdHJlYW0g c2VlbXMgc3VwcG9ydCB0byB0aGUgaGlrZXkgYm9hcmQgWzFdLiBBbnkgcmVhc29uIHRvIG5vdCAK dXNpbmcgaXQ/Cgo+IFsxXSBodHRwOi8vd3d3LnNwaW5pY3MubmV0L2xpc3RzL2FybS1rZXJuZWwv bXNnNDc3NzY5Lmh0bWwKPiBbMl0gaHR0cDovL2xpc3RzLnhlbi5vcmcvYXJjaGl2ZXMvaHRtbC94 ZW4tZGV2ZWwvMjAxNS0xMi9tc2cwMTA2OC5odG1sCj4KPj4KPj4gQWxzbywgd2hhdCBhcmUgdGhl IG1vZGlmaWNhdGlvbnMgeW91IGhhdmUgbWFkZSB0byBzdXBwb3J0IFhlbgo+PiBzdXNwZW5kL3Jl c3VtZSBmb3IgQVJNNjQ/Cj4KPiBJIGJlbGlldmUgSSBoYXZlIHBvc3RlZCBteSBtb2RpZmljYXRp b25zIG9uIHhlbiBpbiB0aGUgZmlyc3QgbWFpbCBvZgo+IHRoaXMgdGhyZWFkLgoKSSBtZWFuIGlu IExpbnV4LiBUaGUgcGF0Y2ggZnJvbSBJYW4gQ2FtcGJlbGwgZG9lcyBub3QgaGF2ZSBhbnkga2lu ZCBvZiAKc3VwcG9ydCBmb3IgQVJNNjQuCgpGb3IgaW5zdGFuY2UgYXJjaC9hcm0veGVuL3N1c3Bl bmQuYyBuZWVkcyB0byBiZSBidWlsdCBmb3IgQVJNNjQuIFNvIEkgYW0gCndvbmRlcmluZyBpZiB5 b3VyIGtlcm5lbCBoYXMgc3VwcG9ydCBvZiBoaWJlcm5hdGlvbi4uLgoKPgo+ICBGcm9tIG15IHVu ZGVyc3RhbmRpbmcsIGEga2VybmVsIGhpYmVybmF0aW9uIHdpbGwgY2F1c2Uga2VybmVsIHRvIHNh dmUKPiBtZW1vcmllcyB0byBkaXNrKHN3YXAgcGFydGl0aW9uKS4gQnV0IG9uIGd1ZXN0IHNhdmUg cHJvZ3Jlc3MsIHRoZQo+IGhpYmVybmF0aW9uIGZvciBkb21VIGRvZXMgbm90IG1ha2UgdGhlIGd1 ZXN0IHNhdmUgbWVtb3JpZXMgdG8gZGlzay4gaXQncwo+IG1vcmUgbGlrZSBzdXNwZW5kIGFsbCBw cm9jZXNzZXMgaW4gZ3Vlc3QsIGFuZCBtZW1vcnMgYWN0dWFsbHkgZGVwZW5kcyBvbgo+IHhlbiB0 b29sc3RhY2sgdG8gc2F2ZSB0aGUgcGFnZXMgdG8gZmlsZS4gQW0gSSBjb3JyZWN0PwoKWW91IGFy ZSB1c2luZyBhbiBvbGRlciB0cmVlIHdpdGggYSBwYXRjaCBzZXJpZXMgYmFzZWQgb24gYSBuZXdl ciB0cmVlLgoKU28gSSB3b3VsZCByZWNvbW1lbmQgeW91IHRvIG1vdmUgdG8gYSBuZXdlciB0cmVl LiBJZiBpdCBpcyBub3QgcG9zc2libGUsIApwbGVhc2UgdGVzdCB0aGF0IGhpYmVybmF0aW9uIHdv cmtzIG9uIGJhcmVtZXRhbC4KClJlZ2FyZHMsCgpbMV0gaHR0cHM6Ly9saXN0cy45NmJvYXJkcy5v cmcvcGlwZXJtYWlsL2Rldi8yMDE2LU1heS8wMDA5MzMuaHRtbAoKLS0gCkp1bGllbiBHcmFsbAoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwOi8vbGlzdHMueGVuLm9y Zy94ZW4tZGV2ZWwK