From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: Ongoing/future speculative mitigation work Date: Fri, 26 Oct 2018 11:51:13 +0100 Message-ID: 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: <5BD2E4EA02000078001F4F96@prv1-mh.provo.novell.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich , Wei Liu 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 , George Dunlap , Andrew Cooper , Xen-devel List , Daniel Kiper , David Woodhouse , Roger Pau Monne List-Id: xen-devel@lists.xenproject.org T24gMTAvMjYvMjAxOCAxMDo1NiBBTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4gT24gMjYuMTAu MTggYXQgMTE6MjgsIDx3ZWkubGl1MkBjaXRyaXguY29tPiB3cm90ZToKPj4gT24gRnJpLCBPY3Qg MjYsIDIwMTggYXQgMDM6MTY6MTVBTSAtMDYwMCwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4+PiBP biAyNS4xMC4xOCBhdCAxODoyOSwgPGFuZHJldy5jb29wZXIzQGNpdHJpeC5jb20+IHdyb3RlOgo+ Pj4+IEEgc3BsaXQgeGVuaGVhcCBtb2RlbCBtZWFucyB0aGF0IGRhdGEgcGVydGFpbmluZyB0byBv dGhlciBndWVzdHMgaXNuJ3QKPj4+PiBtYXBwZWQgaW4gdGhlIGNvbnRleHQgb2YgdGhpcyB2Y3B1 LCBzbyBjYW5ub3QgYmUgYnJvdWdodCBpbnRvIHRoZSBjYWNoZS4KPj4+Cj4+PiBJdCB3YXMgbm90 IGNsZWFyIHRvIG1lIGZyb20gV2VpJ3Mgb3JpZ2luYWwgbWFpbCB0aGF0IHRhbGsgaGVyZSBpcwo+ Pj4gYWJvdXQgInNwbGl0IiBpbiBhIHNlbnNlIG9mICJwZXItZG9tYWluIjsgSSB3YXMgYXNzdW1p bmcgdGhlCj4+PiBDT05GSUdfU0VQQVJBVEVfWEVOSEVBUCBtb2RlIGluc3RlYWQuCj4+Cj4+IFRo ZSBzcGxpdCBoZWFwIHdhcyBpbmRlZWQgcmVmZXJyaW5nIHRvIENPTkZJR19TRVBBUkFURV9YRU5I RUFQIG1vZGUsIHlldAo+PiBJIHdoYXQgSSB3YW50ZWQgbW9zdCBpcyB0aGUgcGFydGlhbCBkaXJl Y3QgbWFwIHdoaWNoIHJlZHVjZXMgdGhlIGFtb3VudAo+PiBvZiBkYXRhIG1hcHBlZCBpbnNpZGUg WGVuIGNvbnRleHQgLS0gdGhlIG9yaWdpbmFsIGlkZWEgd2FzIHJlbW92aW5nCj4+IGRpcmVjdCBt YXAgZGlzY3Vzc2VkIGR1cmluZyBvbmUgb2YgdGhlIGNhbGxzIElJUkMuIEkgdGhvdWdodCBtYWtp bmcgdGhlCj4+IHBhcnRpYWwgZGlyZWN0IG1hcCBtb2RlIHdvcmsgYW5kIG1ha2UgaXQgYXMgc21h bGwgYXMgcG9zc2libGUgd2lsbCBnZXQKPj4gdXMgOTAlIHRoZXJlLgo+Pgo+PiBUaGUgInBlci1k b21haW4iIGhlYXAgaXMgYSBkaWZmZXJlbnQgd29yayBpdGVtLgo+IAo+IEJ1dCBpZiB3ZSBtZWFu IHRvIGdvIHRoYXQgcm91dGUsIGdvaW5nIChiYWNrKSB0byB0aGUgc2VwYXJhdGUKPiBYZW4gaGVh cCBtb2RlbCBzZWVtcyBqdXN0IGxpa2UgYW4gZXh0cmEgY29tcGxpY2F0aW9uIHRvIG1lLgo+IFll dCBJIGFncmVlIHRoYXQgdGhpcyB3b3VsZCByZW1vdmUgdGhlIG5lZWQgZm9yIGEgZmFpciBjaHVu ayBvZgo+IHRoZSBkaXJlY3QgbWFwLiBPdG9oIGEgc3RhdGljYWxseSBwYXJ0aXRpb25lZCBYZW4g aGVhcCB3b3VsZAo+IGJyaW5nIGJhY2sgc2NhbGFiaWxpdHkgaXNzdWVzIHdoaWNoIHdlIGhhZCBz cGVjaWZpY2FsbHkgbWVhbnQgdG8KPiBnZXQgcmlkIG9mIGJ5IG1vdmluZyBhd2F5IGZyb20gdGhh dCBtb2RlbC4KCkkgdGhpbmsgdHVybmluZyBTRVBBUkFURV9YRU5IRUFQIGJhY2sgb24gd291bGQg anVzdCBiZSB0aGUgZmlyc3Qgc3RlcC4KV2UgZGVmaW5pdGVseSB3b3VsZCB0aGVuIG5lZWQgdG8g c29ydCB0aGluZ3Mgb3V0IHNvIHRoYXQgaXQncyBzY2FsYWJsZQphZ2Fpbi4KCkFmdGVyIHN5c3Rl bSBzZXQtdXAsIHRoZSBrZXkgZGlmZmVyZW5jZSBiZXR3ZWVuIHhlbmhlYXAgYW5kIGRvbWhlYXAK cGFnZXMgaXMgdGhhdCB4ZW5oZWFwIHBhZ2VzIGFyZSBhc3N1bWVkIHRvIGJlIGFsd2F5cyBtYXBw ZWQgKGkuZS4sIHlvdQpjYW4ga2VlcCBhIHBvaW50ZXIgdG8gdGhlbSBhbmQgaXQgd2lsbCBiZSB2 YWxpZCksIHdoZXJlYXMgZG9taGVhcCBwYWdlcwpjYW5ub3QgYXNzdW1lZCB0byBiZSBtYXBwZWQs IGFuZCBuZWVkIHRvIGJlIHdyYXBwZWQgd2l0aApbdW5dbWFwX2RvbWFpbl9wYWdlKCkuCgpUaGUg YmFzaWMgc29sdXRpb24gaW52b2x2ZXMgaGF2aW5nIGEgeGVuaGVhcCB2aXJ0dWFsIGFkZHJlc3Mg bWFwcGluZwphcmVhIG5vdCB0aWVkIHRvIHRoZSBwaHlzaWNhbCBsYXlvdXQgb2YgdGhlIG1lbW9y eS4gIGRvbWhlYXAgYW5kIHhlbmhlYXAKbWVtb3J5IHdvdWxkIGhhdmUgdG8gY29tZSBmcm9tIHRo ZSBzYW1lIHBvb2wsIGJ1dCB4ZW5oZWFwIHdvdWxkIG5lZWQgdG8KYmUgbWFwcGVkIGludG8gdGhl IHhlbmhlYXAgdmlydHVhbCBtZW1vcnkgcmVnaW9uIGJlZm9yZSBiZWluZyByZXR1cm5lZC4KCiAt R2VvcmdlCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpY ZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRw czovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs