From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Zhang, Haozhong" Subject: Re: [RFC Design Doc v2] Add vNVDIMM support for Xen Date: Tue, 19 Jul 2016 10:10:14 +0800 Message-ID: <20160719021014.p2yopfks3qs3cmvf@hz-desktop> References: <20160718002912.rva5n5jbrezdchwx@hz-desktop> <20160718090138.wgowwlw6g4fk72q2@hz-desktop> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: "Tian, Kevin" Cc: Juergen Gross , Stefano Stabellini , Wei Liu , "Nakajima, Jun" , George Dunlap , Andrew Cooper , Ian Jackson , "xen-devel@lists.xen.org" , Jan Beulich , Xiao Guangrong List-Id: xen-devel@lists.xenproject.org T24gMDcvMTkvMTYgMDg6NTgsIFRpYW4sIEtldmluIHdyb3RlOgo+ID4gRnJvbTogWmhhbmcsIEhh b3pob25nCj4gPiBTZW50OiBNb25kYXksIEp1bHkgMTgsIDIwMTYgNTowMiBQTQo+ID4gCj4gPiBP biAwNy8xOC8xNiAxNjozNiwgVGlhbiwgS2V2aW4gd3JvdGU6Cj4gPiA+ID4gRnJvbTogWmhhbmcs IEhhb3pob25nCj4gPiA+ID4gU2VudDogTW9uZGF5LCBKdWx5IDE4LCAyMDE2IDg6MjkgQU0KPiA+ ID4gPgo+ID4gPiA+IEhpLAo+ID4gPiA+Cj4gPiA+ID4gRm9sbG93aW5nIGlzIHZlcnNpb24gMiBv ZiB0aGUgZGVzaWduIGRvYyBmb3Igc3VwcG9ydGluZyB2TlZESU1NIGluCj4gPiA+ID4gWGVuLiBJ dCdzIGJhc2ljYWxseSB0aGUgc3VtbWFyeSBvZiBkaXNjdXNzaW9uIG9uIHByZXZpb3VzIHYxIGRl c2lnbgo+ID4gPiA+IChodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL2FyY2hpdmVzL2h0bWwv eGVuLWRldmVsLzIwMTYtMDIvbXNnMDAwMDYuaHRtbCkuCj4gPiA+ID4gQW55IGNvbW1lbnRzIGFy ZSB3ZWxjb21lLiBUaGUgY29ycmVzcG9uZGluZyBwYXRjaGVzIGFyZSBXSVAuCj4gPiA+ID4KPiA+ ID4gPiBUaGFua3MsCj4gPiA+ID4gSGFvemhvbmcKPiA+ID4KPiA+ID4gSXQncyBhIHZlcnkgY2xl YXIgZG9jLiBUaGFua3MgYSBsb3QhCj4gPiA+Cj4gPiA+ID4KPiA+ID4gPiA0LjIuMiBEZXRlY3Rp b24gb2YgSG9zdCBwbWVtIERldmljZXMKPiA+ID4gPgo+ID4gPiA+ICBUaGUgZGV0ZWN0aW9uIGFu ZCBpbml0aWFsaXplIGhvc3QgcG1lbSBkZXZpY2VzIHJlcXVpcmUgYSBub24tdHJpdmlhbAo+ID4g PiA+ICBkcml2ZXIgdG8gaW50ZXJhY3Qgd2l0aCB0aGUgY29ycmVzcG9uZGluZyBBQ1BJIG5hbWVz cGFjZSBkZXZpY2VzLAo+ID4gPiA+ICBwYXJzZSBuYW1lc3BhY2UgbGFiZWxzIGFuZCBtYWtlIG5l Y2Vzc2FyeSByZWNvdmVyeSBhY3Rpb25zLiBJbnN0ZWFkCj4gPiA+ID4gIG9mIGR1cGxpY2F0aW5n IHRoZSBjb21wcmVoZW5zaXZlIExpbnV4IHBtZW0gZHJpdmVyIGluIFhlbiBoeXBlcnZpc29yLAo+ ID4gPiA+ICBvdXIgZGVzaWducyBsZWF2ZXMgaXQgdG8gRG9tMCBMaW51eCBhbmQgbGV0IERvbTAg TGludXggcmVwb3J0Cj4gPiA+ID4gIGRldGVjdGVkIGhvc3QgcG1lbSBkZXZpY2VzIHRvIFhlbiBo eXBlcnZpc29yLgo+ID4gPiA+Cj4gPiA+ID4gIE91ciBkZXNpZ24gdGFrZXMgZm9sbG93aW5nIHN0 ZXBzIHRvIGRldGVjdCBob3N0IHBtZW0gZGV2aWNlcyB3aGVuIFhlbgo+ID4gPiA+ICBib290cy4K PiA+ID4gPiAgKDEpIEFzIGJvb3Rpbmcgb24gYmFyZSBtZXRhbCwgaG9zdCBwbWVtIGRldmljZXMg YXJlIGRldGVjdGVkIGJ5IERvbTAKPiA+ID4gPiAgICAgIExpbnV4IE5WRElNTSBkcml2ZXIuCj4g PiA+ID4KPiA+ID4gPiAgKDIpIE91ciBkZXNpZ24gZXh0ZW5kcyBMaW51eCBOVkRJTU0gZHJpdmVy IHRvIHJlcG9ydHMgU1BBJ3MgYW5kIHNpemVzCj4gPiA+ID4gICAgICBvZiB0aGUgcG1lbSBkZXZp Y2VzIGFuZCByZXNlcnZlZCBhcmVhcyB0byBYZW4gaHlwZXJ2aXNvciB2aWEgYQo+ID4gPiA+ICAg ICAgbmV3IGh5cGVyY2FsbC4KPiA+ID4KPiA+ID4gRG9lcyBMaW51eCBuZWVkIHRvIHByb3ZpZGUg cmVzZXJ2ZWQgYXJlYSB0byBYZW4/IFdoeSBub3QgbGVhdmluZyBYZW4KPiA+ID4gdG8gZGVjaWRl IHJlc2VydmVkIGFyZWEgd2l0aGluIHJlcG9ydGVkIHBtZW0gcmVnaW9ucyBhbmQgdGhlbiByZXR1 cm4KPiA+ID4gcmVzZXJ2ZWQgaW5mbyB0byBEb20wIE5WRElNTSBkcml2ZXIgdG8gYmFsbG9vbiBv dXQ/Cj4gPiA+Cj4gPiAKPiA+IE5WRElNTSBjYW4gYmUgdXNlZCBhcyBhIHBlcnNpc3RlbnQgc3Rv cmFnZSBsaWtlIGEgZGlzayBkcml2ZSwgc28gdGhlCj4gPiByZXNlcnZhdGlvbiBzaG91bGQgYmUg ZG9uZSBvdXQgb2YgWGVuIGFuZCBEb20wLCBmb3IgZXhhbXBsZSwgYnkgYW4KPiA+IGFkbWluaXN0 cmF0b3Igd2hvIGlzIGV4cGVjdGVkIHRvIG1ha2UgbmVjZXNzYXJ5IGRhdGEgYmFja3VwIGluCj4g PiBhZHZhbmNlLgo+IAo+IFdoYXQgcHJldmVudHMgTlZESU1NIGRyaXZlciBmcm9tIHJlc2Vydmlu ZyBzb21lIHJlZ2lvbiBpdHNlbGYgYmVmb3JlCj4gcmVwb3J0aW5nIHRvIHVzZXIgc3BhY2U/Cj4K Ck5vdGhpbmcgaW4gdGhlb3J5IHByZXZlbnRzIHRoZSBkcml2ZXIgZG9pbmcgcmVzZXJ2YXRpb25z LiBJIGp1c3QgbWVhbgp0aGUgcmVzZXJ2YXRpb24gc2hvdWxkIGJlIGluaXRpYXRlZCBieSBzb21l b25lIHdoaWNoIGNhbiBlbnN1cmUsIGZvcgpleGFtcGxlLCB0aGUgY3VycmVudCBkYXRhIG9uIHBt ZW0gaXMgZWl0aGVyIHVzZWxlc3Mgb3IgcHJvcGVybHkKYmFja3VwLiBUaGUgcmVzZXJ2YXRpb24g aXMgb2YgY291cnNlIGZpbmFsbHkgZG9uZSBieSB0aGUgZHJpdmVyLgoKPiA+IAo+ID4gVGhlcmVm b3JlLCBkb20wIGxpbnV4IGFjdHVhbGx5IHJlcG9ydHMgKGluc3RlYWQgb2YgcHJvdmlkaW5nKSB0 aGUKPiA+IHJlc2VydmVkIGFyZWEgdG8gWGVuLCBhbmQgdGhlIGxhdHRlciBjaGVja3MgaWYgdGhl IHJlc2VydmVkIGFyZWEgaXMKPiA+IGxhcmdlIGVub3VnaCBhbmQgKGlmIHllcykgYXNrcyBkb20w IHRvIGJhbGxvb24gb3V0IHRoZSByZXNlcnZlZCBhcmVhLgo+IAo+IEl0IGxvb2tzIG5vbi1pbnR1 aXRpdmUgc2luY2UgYWRtaW5pc3RyYXRvciBkb2Vzbid0IGtub3cgdGhlIGFjdHVhbCByZXF1aXJl bWVudAo+IG9mIFhlbi4gVGhlbiBhZG1pbmlzdHJhdG9yIGhhcyB0byBndWVzcyBhbmQgdHJ5LiBF dmVuIGl0IGZpbmFsbHkgd29ya3MsIHRoZSAKPiByZXNlcnZlZCBzaXplIG1heSBub3QgYmUgb3B0 aW1hbC4KPiAKPiBJZiBEb20wIE5WRElNTSBkcml2ZXIgZG9lcyByZXNlcnZhdGlvbiBpdHNlbGYg YW5kIG5vdGlmeSBYZW4sIGF0IGxlYXN0IHRoZXJlIAo+IGlzIGEgd2F5IGZvciBYZW4gdG8gcmV0 dXJuIGEgZmFpbHVyZSB3aXRoIHJlcXVpcmVkIHNpemUgYW5kIHRoZW4gYXQgdGhlIDJuZCB0aW1l IAo+IHRoZSBOVkRJTU0gZHJpdmVyIGNhbiBhZGp1c3QgdGhlIHJlc2VydmF0aW9uIGFzIGRlc2ly ZWQuIAo+Cj4gRGlkIEkgbWlzdW5kZXJzdGFuZCB0aGUgZmxvdyBoZXJlPwo+CgpJIGRlc2lnbmVk IHRvIGxldCB0aGUgYWRtaW5pc3RyYXRvciBjYWxjdWxhdGUgdGhlIHJlc2VydmVkIHNpemUgYW5k CnBhc3MgdG8gdGhlIGRyaXZlci4gTm93LCB5b3UgYXJlIHJpZ2h0LCBJIHRoaW5rIGl0J3MgYmV0 dGVyIHRvIGxldCBYZW4KYWR2aXNlIHRoZSByZXNlcnZlZCBzaXplIHRvIE5WRElNTSBkcml2ZXIg aW4gZG9tMCBhbmQgdGhlcmVmb3JlIG5vCm5lZWQgZm9yIG1hbnVhbGx5IGNhbGN1bGF0ZWQgc2l6 ZS4KClRoYW5rcywKSGFvemhvbmcKCj4gPiAKPiA+ID4gPgo+ID4gPiA+ICAoMykgWGVuIGh5cGVy dmlzb3IgdGhlbiBjaGVja3MKPiA+ID4gPiAgICAgIC0gd2hldGhlciBTUEEgYW5kIHNpemUgb2Yg dGhlIG5ld2x5IHJlcG9ydGVkIHBtZW0gZGV2aWNlIGlzIG92ZXJsYXAKPiA+ID4gPiAgICAgICAg d2l0aCBhbnkgcHJldmlvdXNseSByZXBvcnRlZCBwbWVtIGRldmljZXM7Cj4gPiA+ID4gICAgICAt IHdoZXRoZXIgdGhlIHJlc2VydmVkIGFyZWEgY2FuIGZpdCBpbiB0aGUgcG1lbSBkZXZpY2UgYW5k IGlzCj4gPiA+ID4gICAgICAgIGxhcmdlIGVub3VnaCB0byBob2xkIHBhZ2VfaW5mbyBzdHJ1Y3Rz IGZvciBpdHNlbGYuCj4gPiA+ID4KPiA+ID4gPiAgICAgIElmIGFueSBjaGVja3MgZmFpbCwgdGhl IHJlcG9ydGVkIHBtZW0gZGV2aWNlIHdpbGwgYmUgaWdub3JlZCBieQo+ID4gPiA+ICAgICAgWGVu IGh5cGVydmlzb3IgYW5kIGhlbmNlIHdpbGwgbm90IGJlIHVzZWQgYnkgYW55Cj4gPiA+ID4gICAg ICBndWVzdHMuIE90aGVyd2lzZSwgWGVuIGh5cGVydmlzb3Igd2lsbCByZWNvcmRlZCB0aGUgcmVw b3J0ZWQKPiA+ID4gPiAgICAgIHBhcmFtZXRlcnMgYW5kIGNyZWF0ZSBwYWdlX2luZm8gc3RydWN0 cyBpbiB0aGUgcmVzZXJ2ZWQgYXJlYS4KPiA+ID4gPgo+ID4gPiA+ICAoNCkgQmVjYXVzZSB0aGUg cmVzZXJ2ZWQgYXJlYSBpcyBub3cgdXNlZCBieSBYZW4gaHlwZXJ2aXNvciwgaXQKPiA+ID4gPiAg ICAgIHNob3VsZCBub3QgYmUgYWNjZXNzaWJsZSBieSBEb20wIGFueSBtb3JlLiBUaGVyZWZvcmUs IGlmIGEgaG9zdAo+ID4gPiA+ICAgICAgcG1lbSBkZXZpY2UgaXMgcmVjb3JkZWQgYnkgWGVuIGh5 cGVydmlzb3IsIFhlbiB3aWxsIHVubWFwIGl0cwo+ID4gPiA+ICAgICAgcmVzZXJ2ZWQgYXJlYSBm cm9tIERvbTAuIE91ciBkZXNpZ24gYWxzbyBuZWVkcyB0byBleHRlbmQgTGludXgKPiA+ID4gPiAg ICAgIE5WRElNTSBkcml2ZXIgdG8gImJhbGxvb24gb3V0IiB0aGUgcmVzZXJ2ZWQgYXJlYSBhZnRl ciBpdAo+ID4gPiA+ICAgICAgc3VjY2Vzc2Z1bGx5IHJlcG9ydHMgYSBwbWVtIGRldmljZSB0byBY ZW4gaHlwZXJ2aXNvci4KPiA+ID4KPiA+ID4gVGhlbiBib3RoIG5kY3RsIGFuZCBYZW4gYmVjb21l IHNvdXJjZSBvZiByZXF1ZXN0aW5nIHJlc2VydmVkIGFyZWEKPiA+ID4gdG8gTGludXggTlZESU1N IGRyaXZlci4gWW91IGRvbid0IG5lZWQgY2hhbmdlIG5kY3RsIGFzIGRlc2NyaWJlZCBpbgo+ID4g PiA0LjIuMS4gVXNlciBjYW4gc3RpbGwgdXNlIG5kY3RsIHRvIHJlc2VydmUgZm9yIERvbTAncyBv d24gcHVycG9zZS4KPiA+ID4KPiA+IAo+ID4gSSBtaXNzZWQgc29tZXRoaW5nIGhlcmU6IERvbTAg cG1lbSBkcml2ZXIgc2hvdWxkIGFsc28gcHJldmVudAo+ID4gZnVydGhlciBvcGVyYXRpb25zIG9u IGhvc3QgbmFtZXNwYWNlIGFmdGVyIGl0IHN1Y2Nlc3NmdWxseSByZXBvcnRzIHRvCj4gPiBYZW4u IEluIHRoaXMgd2F5LCB3ZSBjYW4gcHJldmVudCB1ZXJzcGFjZSB0b29scyBsaWtlIG5kY3RsIHRv IGJyZWFrCj4gPiB0aGUgaG9zdCBwbWVtIGRldmljZS4KPiA+IAo+IAo+IHllcywgRG9tMCBkcml2 ZXIgaXMgZXhwZWN0ZWQgdG8gcmVzZXJ2ZSB0aGUgcmVnaW9uIGFsbG9jYXRlZCBmb3IgWGVuLgo+ IAo+IFRoYW5rcwo+IEtldmluCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3Jn Cmh0dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK