From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: Ongoing/future speculative mitigation work Date: Fri, 26 Oct 2018 05:20:47 -0600 Message-ID: <5BD2F88F02000078001F5117@prv1-mh.provo.novell.com> References: <20181022145534.afuxnfzyovdi3hya@zion.uk.xensource.com> <5BD1D82402000078001F4B60@prv1-mh.provo.novell.com> <187f3a6a-e83e-3dc2-0cb7-69fecdacacf1@citrix.com> <5BD1DAEC02000078001F4BAE@prv1-mh.provo.novell.com> <5BD2DB5F02000078001F4F31@prv1-mh.provo.novell.com> <20181026092820.bernuj2cskqtwqqv@zion.uk.xensource.com> <5BD2E4EA02000078001F4F96@prv1-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: george.dunlap@citrix.com Cc: Martin Pohlack , Julien Grall , Joao Martins , Stefano Stabellini , Mihai Dontu , Marek Marczykowski , Anthony Liguori , uwed@amazon.de, Lars Kurth , Konrad Rzeszutek Wilk , Ross Philipson , Dario Faggioli , Matt Wilson , Boris Ostrovsky , Juergen Gross , Sergey Dyasli , Wei Liu , George Dunlap , Andrew Cooper , Xen-devel List , Daniel Kiper , David Woodhouse Roger Pau Monne List-Id: xen-devel@lists.xenproject.org Pj4+IE9uIDI2LjEwLjE4IGF0IDEyOjUxLCA8Z2VvcmdlLmR1bmxhcEBjaXRyaXguY29tPiB3cm90 ZToKPiBPbiAxMC8yNi8yMDE4IDEwOjU2IEFNLCBKYW4gQmV1bGljaCB3cm90ZToKPj4+Pj4gT24g MjYuMTAuMTggYXQgMTE6MjgsIDx3ZWkubGl1MkBjaXRyaXguY29tPiB3cm90ZToKPj4+IE9uIEZy aSwgT2N0IDI2LCAyMDE4IGF0IDAzOjE2OjE1QU0gLTA2MDAsIEphbiBCZXVsaWNoIHdyb3RlOgo+ Pj4+Pj4+IE9uIDI1LjEwLjE4IGF0IDE4OjI5LCA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4g d3JvdGU6Cj4+Pj4+IEEgc3BsaXQgeGVuaGVhcCBtb2RlbCBtZWFucyB0aGF0IGRhdGEgcGVydGFp bmluZyB0byBvdGhlciBndWVzdHMgaXNuJ3QKPj4+Pj4gbWFwcGVkIGluIHRoZSBjb250ZXh0IG9m IHRoaXMgdmNwdSwgc28gY2Fubm90IGJlIGJyb3VnaHQgaW50byB0aGUgY2FjaGUuCj4+Pj4KPj4+ PiBJdCB3YXMgbm90IGNsZWFyIHRvIG1lIGZyb20gV2VpJ3Mgb3JpZ2luYWwgbWFpbCB0aGF0IHRh bGsgaGVyZSBpcwo+Pj4+IGFib3V0ICJzcGxpdCIgaW4gYSBzZW5zZSBvZiAicGVyLWRvbWFpbiI7 IEkgd2FzIGFzc3VtaW5nIHRoZQo+Pj4+IENPTkZJR19TRVBBUkFURV9YRU5IRUFQIG1vZGUgaW5z dGVhZC4KPj4+Cj4+PiBUaGUgc3BsaXQgaGVhcCB3YXMgaW5kZWVkIHJlZmVycmluZyB0byBDT05G SUdfU0VQQVJBVEVfWEVOSEVBUCBtb2RlLCB5ZXQKPj4+IEkgd2hhdCBJIHdhbnRlZCBtb3N0IGlz IHRoZSBwYXJ0aWFsIGRpcmVjdCBtYXAgd2hpY2ggcmVkdWNlcyB0aGUgYW1vdW50Cj4+PiBvZiBk YXRhIG1hcHBlZCBpbnNpZGUgWGVuIGNvbnRleHQgLS0gdGhlIG9yaWdpbmFsIGlkZWEgd2FzIHJl bW92aW5nCj4+PiBkaXJlY3QgbWFwIGRpc2N1c3NlZCBkdXJpbmcgb25lIG9mIHRoZSBjYWxscyBJ SVJDLiBJIHRob3VnaHQgbWFraW5nIHRoZQo+Pj4gcGFydGlhbCBkaXJlY3QgbWFwIG1vZGUgd29y ayBhbmQgbWFrZSBpdCBhcyBzbWFsbCBhcyBwb3NzaWJsZSB3aWxsIGdldAo+Pj4gdXMgOTAlIHRo ZXJlLgo+Pj4KPj4+IFRoZSAicGVyLWRvbWFpbiIgaGVhcCBpcyBhIGRpZmZlcmVudCB3b3JrIGl0 ZW0uCj4+IAo+PiBCdXQgaWYgd2UgbWVhbiB0byBnbyB0aGF0IHJvdXRlLCBnb2luZyAoYmFjaykg dG8gdGhlIHNlcGFyYXRlCj4+IFhlbiBoZWFwIG1vZGVsIHNlZW1zIGp1c3QgbGlrZSBhbiBleHRy YSBjb21wbGljYXRpb24gdG8gbWUuCj4+IFlldCBJIGFncmVlIHRoYXQgdGhpcyB3b3VsZCByZW1v dmUgdGhlIG5lZWQgZm9yIGEgZmFpciBjaHVuayBvZgo+PiB0aGUgZGlyZWN0IG1hcC4gT3RvaCBh IHN0YXRpY2FsbHkgcGFydGl0aW9uZWQgWGVuIGhlYXAgd291bGQKPj4gYnJpbmcgYmFjayBzY2Fs YWJpbGl0eSBpc3N1ZXMgd2hpY2ggd2UgaGFkIHNwZWNpZmljYWxseSBtZWFudCB0bwo+PiBnZXQg cmlkIG9mIGJ5IG1vdmluZyBhd2F5IGZyb20gdGhhdCBtb2RlbC4KPiAKPiBJIHRoaW5rIHR1cm5p bmcgU0VQQVJBVEVfWEVOSEVBUCBiYWNrIG9uIHdvdWxkIGp1c3QgYmUgdGhlIGZpcnN0IHN0ZXAu Cj4gV2UgZGVmaW5pdGVseSB3b3VsZCB0aGVuIG5lZWQgdG8gc29ydCB0aGluZ3Mgb3V0IHNvIHRo YXQgaXQncyBzY2FsYWJsZQo+IGFnYWluLgo+IAo+IEFmdGVyIHN5c3RlbSBzZXQtdXAsIHRoZSBr ZXkgZGlmZmVyZW5jZSBiZXR3ZWVuIHhlbmhlYXAgYW5kIGRvbWhlYXAKPiBwYWdlcyBpcyB0aGF0 IHhlbmhlYXAgcGFnZXMgYXJlIGFzc3VtZWQgdG8gYmUgYWx3YXlzIG1hcHBlZCAoaS5lLiwgeW91 Cj4gY2FuIGtlZXAgYSBwb2ludGVyIHRvIHRoZW0gYW5kIGl0IHdpbGwgYmUgdmFsaWQpLCB3aGVy ZWFzIGRvbWhlYXAgcGFnZXMKPiBjYW5ub3QgYXNzdW1lZCB0byBiZSBtYXBwZWQsIGFuZCBuZWVk IHRvIGJlIHdyYXBwZWQgd2l0aAo+IFt1bl1tYXBfZG9tYWluX3BhZ2UoKS4KPiAKPiBUaGUgYmFz aWMgc29sdXRpb24gaW52b2x2ZXMgaGF2aW5nIGEgeGVuaGVhcCB2aXJ0dWFsIGFkZHJlc3MgbWFw cGluZwo+IGFyZWEgbm90IHRpZWQgdG8gdGhlIHBoeXNpY2FsIGxheW91dCBvZiB0aGUgbWVtb3J5 LiAgZG9taGVhcCBhbmQgeGVuaGVhcAo+IG1lbW9yeSB3b3VsZCBoYXZlIHRvIGNvbWUgZnJvbSB0 aGUgc2FtZSBwb29sLCBidXQgeGVuaGVhcCB3b3VsZCBuZWVkIHRvCj4gYmUgbWFwcGVkIGludG8g dGhlIHhlbmhlYXAgdmlydHVhbCBtZW1vcnkgcmVnaW9uIGJlZm9yZSBiZWluZyByZXR1cm5lZC4K CldvdWxkbid0IHRoaXMgbW9zdCBlYXNpbHkgYmUgZG9uZSBieSBtYWtpbmcgYWxsb2NfeGVuaGVh cF9wYWdlcygpCmNhbGwgYWxsb2NfZG9taGVhcF9wYWdlcygpIGFuZCB0aGVuIHZtYXAoKSB0aGUg cmVzdWx0PyBPZiBjb3Vyc2UKd2UgbWF5IG5lZWQgdG8gZ3JvdyB0aGUgdm1hcCBhcmVhIGluIHRo YXQgY2FzZS4KCkphbgoKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0 Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRl dmVs