From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: Notes on stubdoms and latency on ARM Date: Wed, 31 May 2017 18:02:58 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" 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: Volodymyr Babchuk , Stefano Stabellini Cc: Artem_Mygaiev@epam.com, Dario Faggioli , xen-devel@lists.xensource.com, Andrii Anisov , Julien Grall List-Id: xen-devel@lists.xenproject.org T24gMjYvMDUvMTcgMjA6MjgsIFZvbG9keW15ciBCYWJjaHVrIHdyb3RlOgo+PiBUaGVyZSBpcyBu byB3YXkgb3V0OiBpZiB0aGUgc3R1YmRvbSBuZWVkcyBldmVudHMsIHRoZW4gd2UnbGwgaGF2ZSB0 bwo+PiBleHBvc2UgYW5kIGNvbnRleHQgc3dpdGNoIHRoZSB2R0lDLiBJZiBpdCBkb2Vzbid0LCB0 aGVuIHdlIGNhbiBza2lwIHRoZQo+PiB2R0lDLiBIb3dldmVyLCB3ZSB3b3VsZCBoYXZlIGEgc2lt aWxhciBwcm9ibGVtIHdpdGggRUwwIGFwcHM6IEkgYW0KPj4gYXNzdW1pbmcgdGhhdCBFTDAgYXBw cyBkb24ndCBuZWVkIHRvIGhhbmRsZSBpbnRlcnJ1cHRzLCBidXQgaWYgdGhleSBkbywKPj4gdGhl biB0aGV5IG1pZ2h0IG5lZWQgc29tZXRoaW5nIGxpa2UgYSB2R0lDLgo+IEhtLiBDb3JyZWN0IG1l LCBidXQgaWYgd2Ugd2FudCBtYWtlIHN0dWJkb20gdG8gaGFuZGxlIHNvbWUgcmVxdWVzdHMKPiAo ZS5nLiBlbXVsYXRlIE1NSU8gYWNjZXNzKSwgdGhlbiBpdCBuZWVkcyBldmVudHMsIGFuZCB0aHVz IGl0IG5lZWRzCj4gaW50ZXJydXB0cy4gQXQgbGVhc3QsIEknbSBub3QgYXdhcmUgYWJvdXQgYW55 IG90aGVyIG1lY2hhbmlzbSwgdGhhdAo+IGFsbG93cyBoeXBlcnZpc29yIHRvIHNpZ25hbCB0byBh IGRvbWFpbi4KPiBPbiBvdGhlciBoYW5kLCBFTDAgYXBwIChhcyBJIHNlZSB0aGVtKSBkb2VzIG5v dCBuZWVkIHN1Y2ggZXZlbnRzLgo+IEJhc2ljYWxseSwgeW91IGp1c3QgY2FsbCBmdW5jdGlvbiBg aGFuZGxlX21taW8oKWAgcmlnaHQgaW4gdGhlIGFwcC4KPiBTbywgYXBwcyBjYW4gbGl2ZSB3aXRo b3V0IGludGVycnVwdHMgYW5kIHRoZXkgc3RpbGwgYmUgYWJsZSB0byBoYW5kbGUKPiByZXF1ZXN0 LgoKU28gcmVtZW1iZXIgdGhhdCAiaW50ZXJydXB0IiBhbmQgImV2ZW50IiBhcmUgYmFzaWNhbGx5 IHRoZSBzYW1lIGFzCiJzdHJ1Y3R1cmVkIGNhbGxiYWNrIi4gIFdoZW4gYW55dGhpbmcgaGFwcGVu cyB0aGF0IFhlbiB3YW50cyB0byB0ZWxsIHRoZQpFTDAgYXBwIGFib3V0LCBpdCBoYXMgdG8gaGF2 ZSBhIHdheSBvZiB0ZWxsaW5nIGl0LiAgSWYgdGhlIEVMMCBhcHAgaXMKaGFuZGxpbmcgYSBkZXZp Y2UsIGl0IGhhcyB0byBoYXZlIHNvbWUgd2F5IG9mIGdldHRpbmcgaW50ZXJydXB0cyBmcm9tCnRo YXQgZGV2aWNlOyBpZiBpdCBuZWVkcyB0byBlbXVsYXRlIGRldmljZXMgc2VudCB0byB0aGUgZ3Vl c3QsIGl0IG5lZWRzCnNvbWUgd2F5IHRvIHRlbGwgWGVuIHRvIGRlbGl2ZXIgYW4gaW50ZXJydXB0 IHRvIHRoZSBndWVzdC4KCk5vdywgd2UgY291bGQgbWFrZSB0aGUgRUwwIGFwcCBpbnRlcmZhY2Ug ImludGVycnVwdGxlc3MiLiAgWGVuIGNvdWxkCndyaXRlIGluZm9ybWF0aW9uIGFib3V0IHBlbmRp bmcgZXZlbnRzIGluIGEgc2hhcmVkIG1lbW9yeSByZWdpb24sIGFuZAp0aGUgRUwwIGFwcCBjb3Vs ZCBjaGVjayB0aGF0IGJlZm9yZSBjYWxsaW5nIHNvbWUgc29ydCBvZiBibG9jaygpCmh5cGVyY2Fs bCwgYW5kIGNoZWNrIGl0IGFnYWluIHdoZW4gaXQgcmV0dXJucyBmcm9tIHRoZSBibG9jaygpIGNh bGwuCgpCdXQgdGhlIHNoYXJlZCBldmVudCBpbmZvcm1hdGlvbiBzdGFydHMgdG8gbG9vayBhbiBh d2Z1bCBsb3QgbGlrZSBldmVudHMKYW5kL29yIHBlbmRpbmcgYml0cyBvbiBhbiBpbnRlcnJ1cHQg Y29udHJvbGxlciAtLSB0aGUgb25seSBkaWZmZXJlbmNlCmJlaW5nIHRoYXQgeW91IGFyZW4ndCBp bnRlcnJ1cHRlZCBpZiB5b3UncmUgYWxyZWFkeSBydW5uaW5nLgoKSSdtIHByZXR0eSBzdXJlIHlv dSBjb3VsZCBydW4gaW4gdGhpcyBtb2RlIHVzaW5nIHRoZSBleGlzdGluZyBpbnRlcmZhY2VzCmlm IHlvdSBkaWRuJ3Qgd2FudCB0aGUgaGFzc2xlIG9mIGRlYWxpbmcgd2l0aCBhc3luY2hyb255LiAg SWYgdGhhdCdzIHRoZQpjYXNlLCB0aGVuIHdoeSBib3RoZXIgaW52ZW50aW5nIGFuIGVudGlyZWx5 IG5ldyBpbnRlcmZhY2UsIHdpdGggaXRzIG93bgpidWdzIGFuZCBkdXBsaWNhdGlvbiBvZiBmdW5j dGlvbmFsaXR5PyAgV2h5IG5vdCBqdXN0IHVzZSB3aGF0IHdlIGFscmVhZHkKaGF2ZT8KCiAtR2Vv cmdlCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4t ZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0dHBzOi8vbGlzdHMu eGVuLm9yZy94ZW4tZGV2ZWwK