From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [RFC 0/5] xen/arm: support big.little SoC Date: Tue, 20 Sep 2016 11:27:24 +0100 Message-ID: References: <20160919083619.GA16854@linux-7smt.suse> <5ddefbc1-3bd4-c990-b615-0039761535d8@arm.com> <97d77bdb-2f4e-e89a-95b9-8aacb56eebc0@suse.com> <1474305482.4393.42.camel@citrix.com> <1474325742.4393.78.camel@citrix.com> <1474332846.4393.153.camel@citrix.com> <20160920100331.GB8084@linux-u7w5.ap.freescale.net> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <20160920100331.GB8084@linux-u7w5.ap.freescale.net> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Peng Fan Cc: Juergen Gross , Peng Fan , Stefano Stabellini , Andrew Cooper , Dario Faggioli , "xen-devel@lists.xen.org" , Julien Grall , Jan Beulich List-Id: xen-devel@lists.xenproject.org T24gVHVlLCBTZXAgMjAsIDIwMTYgYXQgMTE6MDMgQU0sIFBlbmcgRmFuIDx2YW4uZnJlZW5peEBn bWFpbC5jb20+IHdyb3RlOgo+IEhpIERhcmlvLAo+IE9uIFR1ZSwgU2VwIDIwLCAyMDE2IGF0IDAy OjU0OjA2QU0gKzAyMDAsIERhcmlvIEZhZ2dpb2xpIHdyb3RlOgo+Pk9uIE1vbiwgMjAxNi0wOS0x OSBhdCAxNzowMSAtMDcwMCwgU3RlZmFubyBTdGFiZWxsaW5pIHdyb3RlOgo+Pj4gT24gVHVlLCAy MCBTZXAgMjAxNiwgRGFyaW8gRmFnZ2lvbGkgd3JvdGU6Cj4+PiA+IEFuZCB0aGlzIHdvdWxkIHdv cmsgZXZlbiBpZi93aGVuIHRoZXJlIGlzIG9ubHkgb25lIGNwdXBvb2wsIG9yIGluCj4+PiA+IGdl bmVyYWwgZm9yIGRvbWFpbnMgdGhhdCBhcmUgaW4gYSBwb29sIHRoYXQgaGFzIGJvdGggYmlnIGFu ZCBMSVRUTEUKPj4+ID4gcGNwdXMuIEZ1cnRoZXJtb3JlLCBiaWcuTElUVExFIHN1cHBvcnQgYW5k IGNwdXBvb2xzIHdpbGwgYmUKPj4+ID4gb3J0aG9nb25hbCwKPj4+ID4ganVzdCBsaWtlIHBpbm5p bmcgYW5kIGNwdXBvb2xzIGFyZSBvcnRob2dvbmFsIHJpZ2h0IG5vdy4gSS5lLiwgb25jZQo+Pj4g PiB3ZQo+Pj4gPiB3aWxsIGhhdmUgd2hhdCBJIGRlc2NyaWJlZCBhYm92ZSwgbm90aGluZyBwcmV2 ZW50cyB1cyBmcm9tCj4+PiA+IGltcGxlbWVudGluZwo+Pj4gPiBwZXItdmNwdSBjcHVwb29sIG1l bWJlcnNoaXAsIGFuZCBlaXRoZXIgY3JlYXRlIHRoZSB0d28gKG9yIG1vcmUhKQo+Pj4gPiBiaWcK Pj4+ID4gYW5kIExJVFRMRSBwb29scywgb3IgZnJvbSBtaXhpbmcgdGhpbmdzIGV2ZW4gbW9yZSwg Zm9yIG1vcmUgY29tcGxleAo+Pj4gPiBhbmQKPj4+ID4gc3BlY2lmaWMgdXNlIGNhc2VzLiA6LSkK Pj4+Cj4+PiBJIHRoaW5rIHRoYXQgZXZlcnlib2R5IGFncmVlcyB0aGF0IHRoaXMgaXMgdGhlIGJl c3QgbG9uZyB0ZXJtCj4+PiBzb2x1dGlvbi4KPj4+Cj4+V2VsbCwgbm8sIHRoYXQgd2Fzbid0IG9i dmlvdXMgdG8gbWUuIElmIHRoYXQncyB0aGUgY2FzZSwgaXQncyBhbHJlYWR5Cj4+c29tZXRoaW5n ISA6LSkKPj4KPj4+ID4KPj4+ID4gQWN0dWFsbHksIHdpdGggdGhlIGNwdXBvb2wgc29sdXRpb24s IGlmIHlvdSB3YW50IGEgZ3Vlc3QgKG9yIGRvbTApCj4+PiA+IHRvCj4+PiA+IGFjdHVhbGx5IGhh dmUgYm90aCBiaWcgYW5kIExJVFRMRSB2Y3B1cywgeW91IG5lY2Vzc2FyaWx5IGhhdmUgdG8KPj4+ ID4gaW1wbGVtZW50IHBlci12Y3B1IChyYXRoZXIgdGhhbiBwZXItZG9tYWluLCBhcyBpdCBpcyBu b3cpIGNwdXBvb2wKPj4+ID4gbWVtYmVyc2hpcC4gSSBzYWlkIG15c2VsZiBpdCdzIG5vdCBpbXBv c3NpYmxlLCBidXQgY2VydGFpbmx5IGl0J3MKPj4+ID4gc29tZQo+Pj4gPiB3b3JrLi4uIHdpdGgg dGhlIHNjaGVkdWxlciBzb2x1dGlvbiB5b3UgYmFzaWNhbGx5IGdldCB0aGF0IGZvcgo+Pj4gPiBm cmVlIQo+Pj4gPgo+Pj4gPiBTbywgYmFzaWNhbGx5LCBpZiB3ZSB1c2UgY3B1cG9vbHMgZm9yIHRo ZSBiYXNpY3Mgb2YgYmlnLkxJVFRMRQo+Pj4gPiBzdXBwb3J0LAo+Pj4gPiB0aGVyZSdzIG5vIHdh eSBvdXQgb2YgaXQgKGFwYXJ0IGZyb20gZ29pbmcgaW1wbGVtZW50aW5nIHNjaGVkdWxpbmcKPj4+ ID4gc3VwcG9ydCBhZnRlcndvcmRzLCBidXQgdGhhdCBsb29rcyBiYWNrd2FyZHMgdG8gbWUsIGVz cGVjaWFsbHkgd2hlbgo+Pj4gPiB0aGlua2luZyBhdCBpdCB3aXRoIHRoZSBjb2RlIGluIG1pbmQp Lgo+Pj4KPj4+IFRoZSBxdWVzdGlvbiBpczogd2hhdCBpcyB0aGUgYmVzdCBzaG9ydC10ZXJtIHNv bHV0aW9uIHdlIGNhbiBhc2sgUGVuZwo+Pj4gdG8KPj4+IGltcGxlbWVudCB0aGF0IGFsbG93cyBY ZW4gdG8gcnVuIG9uIGJpZy5MSVRUTEUgc3lzdGVtcyB0b2RheT8KPj4+IFBvc3NpYmx5Cj4+PiBn ZXR0aW5nIHVzIGNsb3NlciB0byB0aGUgbG9uZyB0ZXJtIHNvbHV0aW9uLCBvciBhdCBsZWFzdCBu b3QgZmFydGhlcgo+Pj4gZnJvbSBpdD8KPj4+Cj4+U28sIEkgc3RpbGwgaGF2ZSB0byBsb29rIGNs b3NlbHkgYXQgdGhlIHBhdGNoZXMgaW4gdGhlc2Ugc2VyaWVzLiBCdXQsCj4+d2l0aCBDcmVkaXQy IGluIG1pbmQsIGlmIG9uZToKPj4KPj4/Py0gdGFrZSBhZHZhbnRhZ2Ugb2YgdGhlIGtub3dsZWRn ZSBvZiB3aGF0IGFyY2ggYSBwY3B1IGJlbG9uZ3MgaW5zaWRlPz8KPgo+Pj8/ID8/dGhlIGNvZGUg dGhhdCBhcnJhbmdlIHRoZSBwY3B1cyBpbiBydW5xdWV1ZXMsIHdoaWNoIG1lYW5zIHdlJ2xsIGVu ZD8/Cj4+Pz8gPz91cCB3aXRoIGJpZyBydW5xdWV1ZXMgYW5kIExJVFRMRSBydW5xdWV1ZXMuIEkg cmUtd3JvdGUgdGhhdCBjb2RlLCBJCj4+Pz8gPz9jYW4gcHJvdmlkZSBwb2ludGVycyBhbmQgaGVs cCwgaWYgbmVjZXNzYXJ5Owo+Pj8/LSB0d2VhayB0aGUgb25lIG9yIHR3byBpbnN0YW5jZSBvZiBm b3JfZWFjaF9ydW5xdWV1ZSgpIFsqXSB0aGF0IHRoZXJlCj4+Pz8gPz9hcmUgaW4gdGhlIGNvZGUg aW50byBhIGZvcl9lYWNoX3J1bnF1ZXVlX29mX3NhbWVfY2xhc3MoKSwgaS5lLjoKPgo+IERvIHlv dSBoYXZlIHBsYW4gdG8gYWRkIHRoaXMgc3VwcG9ydCBmb3IgYmlnLkxJVFRMRT8KPgo+IEkgYWRt aXQgdGhhdCB0aGlzIGlzIHRoZSBmaXJzdCB0aW1lIEkgbG9vayBpbnRvIHRoZSBzY2hlZHVsZXIg cGFydC4KPiBJZiBJIHVuZGVyc3RhbmQgd3JvbmdseSwgcGxlYXNlIGNvcnJlY3QgbWUuCj4KPiBU aGVyZSBpcyBhIHJ1bnF1ZXVlIGZvciBlYWNoIHBoeXNpY2FsIGNwdSwgYW5kIHRoZXJlIGFyZSBz ZXZlcmFsIHZjcHVzIGluIHRoZSBydW5xdWV1ZS4KPiBUaGUgc2NoZWR1bGVyIHdpbGwgcGljayBh IHZjcHUgaW4gdGhlIHJ1bnF1ZXVlIHRvIHJ1biBvbiB0aGUgcGh5c2ljYWwgY3B1Lgo+Cj4gQSB2 Y3B1IGlzIGJpbmQgdG8gYSBwaHlzaWNhbCBjcHUgd2hlbiBhbGxvY192Y3B1LCBidXQgdGhlIHZj cHUgY2FuIGJlIHNjaGVkdWxlZAo+IG9yIG1pZ3JhdGVkIHRvIGEgZGlmZmVyZW50IHBoeXNpY2Fs IGNwdS4KPgo+IFNldHRpbmdzIGNwdSBzb2Z0IGFmZmluaXR5IGFuZCBoYXJkIGFmZmluaXR5IHRv IHJlc3RyaWN0IHZjcHVzIGJlIHNjaGVkdWxlZAo+IG9uIHNwZWNpZmljIGNwdXMuIFRoZW4gaXMg dGhlcmUgYSBuZWVkIHRvIGludHJvdWR1Y2UgbW9yZSBydW5xdWV1ZXM/CgpSdW5xdWV1ZXMgaXMg YSBzY2hlZHVsZXItc3BlY2lmaWMgdGhpbmcuICBUaGUgc2ltcGxlc3QgdGhpbmcgdG8gZG8Kd291 bGQgYmUsIGluIHRoZSB0b29sc3RhY2ssIHRvIGxpbWl0IHRoZSBoYXJkIGFmZmluaXR5IG9mIGEg dmNwdSB0bwppdHMgY3B1IGNsYXNzIChlaXRoZXIgYmlnIG9yIExJVFRMRSkuICBUaGVuIHRoZSBz Y2hlZHVsZXIgd2lsbCBzaW1wbHkKZG8gdGhlIHJpZ2h0IHRoaW5nLgoKPiBUaGlzIHNlZW1zIG1v cmUgY29tcGxpY2F0ZWQgdGhhbiBjcHVwb29sICg6CgpJdCdzIG1vcmUgY29tcGxpY2F0ZWQgdGhh biBzaW1wbHkgbWFraW5nIDIgY3B1cG9vbHMgYW5kIGhhdmluZyBhbnkKZ2l2ZW4gZG9tYWluIGJl IGVudGlyZWx5IGJpZyBvciBlbnRpcmVseSBMSVRUTEUuCgpCdXQgaXQncyBhIGxvdCAqbGVzcyog Y29tcGxpY2F0ZWQgdGhhbiB0cnlpbmcgdG8gbWFrZSBhIHNpbmdsZSBkb21haW4KY3Jvc3MgdHdv IGRpZmZlcmVudCBraW5kcyBvZiBjcHVwb29scy4gOi0pCgo+PkFzIG1lbnRpb25lZCBpbiBwcmV2 aW91cyBtYWlsLCBhbmQgYXMgZHJhZnRlZCB3aGVuIHJlcGx5aW5nIHRvIFBlbmcsCj4+dGhlIG9u bHkgdGhpbmsgdGhhdCB0aGUgdXNlciBzaG91bGQga25vdyBpcyBob3cgbWFueSBiaWcgYW5kIGhv dyBtYW55Cj4+TElUVExFIHZjcHVzIHNoZSB3YW50cyAoYW5kLCBwb3RlbnRpYWxseSwgd2hpY2gg b25lIHdvdWxkIGJlIGVhY2gpLiA6LSkKPgo+IFllYWguIENvbWVzIGEgbmV3IHF1ZXN0aW9uIHRv IG1lLgo+Cj4gRm9yIGJpZy5MSVRUTEUsIGhvdyB0byBkZWNpZGUgdGhlIHBoeXNpY2FsIGNwdSBp cyBhIGJpZyBDUFUgb3IgYSBsaXR0bGUgY3B1Pwo+Cj4gSSdkIGxpa2UgdG8gYWRkIGEgY29tcHV0 aW5nIGNhcGFiaWxpdHkgaW4geGVuL2FybSwgbGlrZSB0aGlzOgo+Cj4gc3RydWN0IGNvbXB1dGVf Y2FwYXRpbGlieQo+IHsKPiAgICBjaGFyICpjb3JlX25hbWU7Cj4gICAgdWludDMyX3QgcmFuazsK PiAgICB1aW50MzJfdCBjcHVfcGFydG51bTsKPiB9Owo+Cj4gc3RydWN0IGNvbXB1dGVfY2FwYXRp bGlieSBjYz0KPiB7Cj4gICB7IkE3MiIsIDQsIDB4ZDA4fSwKPiAgIHsiQTU3IiwgMywgMHh4eHh9 LAo+ICAgeyJBNTMiLCAyLCAweGQwM30sCj4gICB7IkEzNSIsIDEsIC4uLn0sCj4gfQo+Cj4gVGhl biB3aGVuIGlkZW50aWZ5IGNwdSwgd2UgZGVjaWRlIHdoaWNoIGNwdSBpcyBiaWcgYW5kIHdoaWNo IGNwdSBpcyBsaXR0bGUKPiBhY2NvcmRpbmcgdG8gdGhlIGNvbXB1dGluZyByYW5rLgo+Cj4gQW55 IGNvbW1lbnRzPwoKSSB0aGluayB3ZSBkZWZpbml0ZWx5IG5lZWQgdG8gaGF2ZSBYZW4gaGF2ZSBz b21lIGtpbmQgb2YgaWRlYSB0aGUKb3JkZXIgYmV0d2VlbiBwcm9jZXNzb3JzLCBzbyB0aGF0IHRo ZSB1c2VyIGRvZXNuJ3QgbmVlZCB0byBmaWd1cmUgb3V0CndoaWNoIGNsYXNzIC8gcG9vbCBpcyBi aWcgYW5kIHdoaWNoIHBvb2wgaXMgTElUVExFLiAgV2hldGhlciB0aGlzIHNvcnQKb2YgZW51bWVy YXRpb24gaXMgdGhlIGJlc3Qgd2F5IHRvIGRvIHRoYXQgSSdsbCBsZXQgSnVsaWVuIGFuZCBTdGVm YW5vCmdpdmUgdGhlaXIgb3Bpbmlvbi4KCiAtR2VvcmdlCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZl bEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK