From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: Re: [PATCH SpectreV1+L1TF v4 03/11] config: introduce L1TF_LFENCE option Date: Thu, 24 Jan 2019 21:29:41 +0000 Message-ID: References: <1548244285-30813-1-git-send-email-nmanthey@amazon.de> <1548244285-30813-4-git-send-email-nmanthey@amazon.de> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from us1-rack-dfw2.inumbo.com ([104.130.134.6]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1gmmZM-0004m7-I2 for xen-devel@lists.xenproject.org; Thu, 24 Jan 2019 21:29:52 +0000 In-Reply-To: <1548244285-30813-4-git-send-email-nmanthey@amazon.de> Content-Language: en-GB List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Norbert Manthey , xen-devel@lists.xenproject.org Cc: Stefano Stabellini , Wei Liu , Konrad Rzeszutek Wilk , George Dunlap , Tim Deegan , Ian Jackson , Dario Faggioli , Martin Pohlack , Julien Grall , David Woodhouse , Jan Beulich , Martin Mazein , Julian Stecklina , Bjoern Doebel List-Id: xen-devel@lists.xenproject.org T24gMjMvMDEvMjAxOSAxMTo1MSwgTm9yYmVydCBNYW50aGV5IHdyb3RlOgo+IFRoaXMgY29tbWl0 IGludHJvZHVjZXMgdGhlIGNvbmZpZ3VyYXRpb24gb3B0aW9uIEwxVEZfTEZFTkNFIHRoYXQgYWxs b3dzCj4gdG8gY29udHJvbCB0aGUgaW1wbGVtZW50YXRpb24gb2YgdGhlIHByb3RlY3Rpb24gb2Yg cHJpdmlsZWdlIGNoZWNrcyB2aWEKPiBsZmVuY2UgaW5zdHJ1Y3Rpb25zLiBUaGUgZm9sbG93aW5n IGZvdXIgYWx0ZXJuYXRpdmVzIGFyZSBwcm92aWRlZDoKPgo+ICAtIG5vdCBpbmplY3RpbmcgbGZl bmNlIGluc3RydWN0aW9ucwo+ICAtIGluamVjdCBhbiBsZmVuY2UgaW5zdHJ1Y3Rpb24gZm9yIGJv dGggb3V0Y29tZXMgb2YgdGhlIGNvbmRpdGlvbmFsCj4gIC0gaW5qZWN0IGFuIGxmZW5jZSBpbnN0 cnVjdGlvbiBvbmx5IGlmIHRoZSBjb25kaXRpb25hbCB3b3VsZCBldmFsdWF0ZQo+ICAgIHRvIHRy dWUsIHNvIHRoYXQgdGhpcyBjYXNlIGNhbm5vdCBiZSBlbnRlcmVkIHVuZGVyIHNwZWN1bGF0aW9u Cj4gIC0gZXZhbHVhdGluZyB0aGUgY29uZGl0aW9uIGFuZCBzdG9yZSB0aGUgcmVzdWx0IGludG8g YSBsb2NhbCB2YXJpYWJsZS4KPiAgICBiZWZvcmUgdXNpbmcgdGhpcyB2YWx1ZSwgaW5qZWN0IGFu IGxmZW5jZSBpbnN0cnVjdGlvbi4KCkNhbiB3ZSB0YWtlIGEgc3RlcCBiYWNrIGFuZCB0aGluayBh Ym91dCB3aGF0IGlzIGdvaW5nIG9uIGhlcmUuCgpUQkgsIEknbSBkdWJpb3VzIG9mIHRoZSBvdmVy YWxsIHV0aWxpdHkgb2YgdGhpcyBvcHRpb24uwqAgRWl0aGVyIHBlb3BsZQp2YWx1ZSB0aGVpciBz ZWN1cml0eSBhbmQgZGlzYWJsZWQgSFQgZm9yIEwxVEYsIG9yIHRoZXkgb3B0ZWQgZm9yCnBlcmZv cm1hbmNlIGluc3RlYWQuwqAgSG93ZXZlciwgSSBhY2NlcHQgdGhhdCB0aGVyZSBhcmUgcGxlbnR5 IG9mIHBlb3BsZQp3aG8gYXJlIHBsYXlpbmcgZmFzdCBhbmQgbG9vc2Ugd2l0aCB0aGF0IHBlcmhh cHMgdGhpcyBzZXJpZXMgaW4gYW4KaW50ZXJtZWRpYXRlIHRoZXknZCBjaG9vc2UuCgpUaGF0IGlz IG5vdCB0byBzYXkgSSBhZ3JlZSB3aXRoIHRoZSByZWFzb25pbmcgd2hpY2ggbGVhZCB0byB0aGF0 IGNob2ljZSwKYnV0IHRoYXQgaGF2aW5nIHN1Y2ggYW4gb3B0aW9uIGF2YWlsYWJsZSBpbiBzb21l IGZvcm0gaW4gWGVuIGlzIGxpa2VseQp0byBiZSB1c2VmdWwgdG8gc29tZSBwZW9wbGUuCgpTbywg Z2V0dGluZyB0byB0aGUgcGVvcGxlIHBsYXlpbmcgZmFzdCBhbmQgbG9vc2Ugd2l0aCB0aGVpciBz ZWN1cml0eS4uLsKgClRoZXkgd2lsbCBiZSB3YW50aW5nIHRoaXMgdG8gZ2FpbiBzb21lIHNlY3Vy aXR5LCBhdCBhIHBlcmYgZXhwZW5zZSB3aGljaAp0aGV5IGV4cGVjdCB0byBiZSBmYXIgbGVzcyB0 aGFuIGRpc2FibGluZyBIVC4KCgpJbiBwcmFjdGljZSwgeW91IGdlbmVyYWxseSBvbmx5IG5lZWQg YSBmZW5jZSBmb3Igb25lIG9mIHRoZSB0d28gYmFzaWMKYmxvY2tzIGZvbGxvd2luZyBhIGNvbmRp dGlvbmFsLCBidXQgYmVjYXVzZSB3ZSBhcmUgbm90IHRoZSBjb21waWxlciwgd2UKY2Fubm90IGV2 YWx1YXRlIHdoaWNoIHNpZGUgaXMgc2FmZSBhdCBjb21waWxlIHRpbWUsIGVzcGVjaWFsbHkgYXMg dGhlCmNvbXBpbGVyIGlzIGFibGUgdG8gb3B0aW1pc2Ugc3ViIGV4cHJlc3Npb25zLgoKVGhlcmVm b3JlLCB0aGUgImZlbmNlIG9uIHRydWUiIG9yICJmZW5jZSBvbiBmYWxzZSIgb3B0aW9ucyBhcmUg ZmFpcmx5CnVzZWxlc3MuwqAgT24gYXZlcmFnZSwgdGhleSB3aWxsICJmaXgiIDUwJSBvZiB0aGUg Y29uZGl0aW9uYWwgYnJhbmNoZXMsCmJ1dCB5b3Ugd29uJ3Qga25vdyB3aGljaCB1bnRpbCB5b3Ug ZGlzYXNzZW1ibGUgdGhlIHJlc3VsdGluZyBiaW5hcnkuCgpXb3JzZSBpcyB0aGUgImV2YWx1YXRl IGNvbmRpdGlvbiwgc3Rhc2ggcmVzdWx0LCBmZW5jZSwgdXNlIHZhcmlhYmxlIgpvcHRpb24sIHdo aWNoIGlzIGFsbW9zdCBjb21wbGV0ZWx5IHVzZWxlc3MuwqAgSWYgeW91IHdvcmsgb3V0IHRoZQpy ZXN1bHRpbmcgaW5zdHJ1Y3Rpb24gc3RyZWFtLCB5b3UnbGwgaGF2ZSBhIGNvbmRpdGlvbmFsIGV4 cHJlc3Npb24KY2FsY3VsYXRlZCBkb3duIGludG8gYSByZWdpc3RlciwgdGhlbiBhIGZlbmNlLCB0 aGVuIGEgdGVzdCByZWdpc3RlciBhbmQKY29uZGl0aW9uYWwganVtcCBpbnRvIG9uZSBvZiB0d28g YmFzaWMgYmxvY2tzLsKgIFRoaXMgdGFrZXMgdGhlIHBlcmYgaGl0LAphbmQgZG9lc24ndCBwcm90 ZWN0IGVpdGhlciBvZiB0aGUgYmFzaWMgYmxvY2tzIGZvciBzcGVjdWxhdGl2ZQptaXMtZXhlY3V0 aW9uLgoKVGhlIG9ubHkgb25lIG9mIHRoZXNlIG9wdGlvbnMgSSBzZWUgd2hpY2ggaGFzIGFueSB2 YWx1ZSBpcyB0aGUgZmVuY2Ugb24KYm90aCBzaWRlcyBvZiB0aGUgY29uZGl0aW9uLCBiZWNhdXNl IGl0IGlzIHRoZSBvbmx5IG9uZSB3aGljaAptZWFuaW5nZnVsbHkgaW1wcm92ZXMgdGhlIHNlY3Vy aXR5IG9mIHRoZSByZXN1bHRpbmcgYmluYXJ5LgoKfkFuZHJldwoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4t ZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9t YWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==