From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: Re: Reducing or removing direct map from xen (was Re: Ongoing/future speculative mitigation work) Date: Fri, 22 Feb 2019 12:11:45 +0000 Message-ID: <20190222121145.xkvchgp7yjckokri@zion.uk.xensource.com> References: <20190124114455.eyke5dvkqsxhklav@zion.uk.xensource.com> <20190220122901.6kvc7ibyjo4uyzke@zion.uk.xensource.com> <20190220130052.b22syaca6cswc3pk@Air-de-Roger> <20190220130956.tkhsmdojzdf4nc7x@zion.uk.xensource.com> <20190220170809.jr6neinf5beescf4@zion.uk.xensource.com> <5C6FE1790200007800219178@prv1-mh.provo.novell.com> <20190222115033.2jhkceg6fv4bcmkm@zion.uk.xensource.com> <5C6FE5AB02000078002191B0@prv1-mh.provo.novell.com> 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 1gx9gJ-0008KV-MY for xen-devel@lists.xenproject.org; Fri, 22 Feb 2019 12:11:55 +0000 Content-Disposition: inline In-Reply-To: <5C6FE5AB02000078002191B0@prv1-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Jan Beulich Cc: Martin Pohlack , Julien Grall , Joao Martins , Stefano Stabellini , Mihai Dontu , Marek Marczykowski , Anthony Liguori , xen-devel , 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 , Daniel Kiper , David Woodhouse , Roger List-Id: xen-devel@lists.xenproject.org T24gRnJpLCBGZWIgMjIsIDIwMTkgYXQgMDU6MDY6MDNBTSAtMDcwMCwgSmFuIEJldWxpY2ggd3Jv dGU6Cj4gPj4+IE9uIDIyLjAyLjE5IGF0IDEyOjUwLCA8d2VpLmxpdTJAY2l0cml4LmNvbT4gd3Jv dGU6Cj4gPiBPbiBGcmksIEZlYiAyMiwgMjAxOSBhdCAwNDo0ODowOUFNIC0wNzAwLCBKYW4gQmV1 bGljaCB3cm90ZToKPiA+PiA+Pj4gT24gMjAuMDIuMTkgYXQgMTg6MDgsIDx3ZWkubGl1MkBjaXRy aXguY29tPiB3cm90ZToKPiA+PiA+IE9uIFdlZCwgRmViIDIwLCAyMDE5IGF0IDAxOjA5OjU2UE0g KzAwMDAsIFdlaSBMaXUgd3JvdGU6Cj4gPj4gPiBbLi4uXQo+ID4+ID4+IEkgdGhpbmsgdW5kZXIt YWxsb2NhdGUtdGhlbi1tYXAgbG9va3MgcGxhdXNpYmxlLiB4bWFsbG9jIHdpbGwgbmVlZAo+ID4+ ID4+IHRvIGFsbG9jYXRlIHBhZ2VzLCBwdXQgdGhlbSBpbnRvIGFuIGFycmF5IGFuZCBjYWxsIF9f dm1hcCBvbiB0aGF0IGFycmF5Cj4gPj4gPj4gZGlyZWN0bHkuCj4gPj4gPiAKPiA+PiA+IFRoZSBi aWdnZXN0IGlzc3VlIHdpdGggdGhpcyBhcHByb2FjaCBpcyB0aGF0IHdlIG5vdyBuZWVkIGFuIGFy cmF5IG9mCj4gPj4gPiAxVUw8PE1BWF9PUkRFUiB0byBhY2NvbW1vZGF0ZSBtZm5zLiBCYWNrIG9m IGVudmVsb3BlIGNhbGN1bGF0aW9uOiBvbiB4ODYKPiA+PiA+IHRoaXMgaXMgZ29pbmcgdG8gYmUg KDFVTDw8MjApKjggYnl0ZXMgbG9uZy4gVGhpcyBpcyBub3QgZmVhc2libGUuCj4gPj4gCj4gPj4g QXJlIHdlIHJlYWxseSBjYWxsaW5nIHhtYWxsb2MoKSB3aXRoIGFueSBudW1iZXIgbmVhcmx5IHRo aXMgYmlnPwo+ID4gCj4gPiBJbiBwcmFjdGljZSwgSSBkb24ndCB0aGluayBzby4gV2hhdCBkbyB5 b3UgdGhpbmsgaXMgYSBzZW5zaWJsZSBsaW1pdD8KPiAKPiBJJ20gYWZyYWlkIHlvdSB3b24ndCBs aWtlIHRoZSBhbnN3ZXI6IFdoYXRldmVyIHRoZSBiaWdnZXN0IGNodW5rIGlzCj4gd2UgY3VycmVu dGx5IGFsbG9jYXRlIGFueXdoZXJlLiBQZXJoYXBzLCBlLmcuIGlmIHRoZXJlJ3MgYSBzaW5nbGUg YmlnCj4gInZpb2xhdG9yIiwgY2hhbmdpbmcgc29tZSBjb2RlIHRvIHJlZHVjZSB0aGUgdXBwZXIg Ym91bmQgbWlnaHQgYmUKPiBkZXNpcmFibGUuCj4gCj4gSW4gZ2VuZXJhbCB0aGVyZSBzaG91bGRu J3QgYmUgYW55IGdvaW5nIGJleW9uZCBvbmUgcGFnZSBvbmNlIHdlJ3ZlCj4gY29tcGxldGVkIGJv b3RpbmcuIFNldmVyYWwgeWVhcnMgYmFjayBJIHRoaW5rIEkgaGFkIG1hbmFnZWQgdG8KPiByZXBs YWNlIG1vc3QgKGFsbD8pIGhpZ2hlciBvcmRlciB4bWFsbG9jKCktcy4gU28gYW5vdGhlciBvcHRp b24gbWlnaHQKPiBiZSB0byBhbGxvdyB1cCB0byBNQVhfT1JERVIgYnkgd2F5IG9mIHNvbWUgaW5p dC1vbmx5IG1lY2hhbmlzbSwKPiBhbmQgbGF0ZXIgYWxsb3cgb25seSB1cCB0byBzaW5nbGUgcGFn ZSBjaHVua3MuCj4gCgpUaGluayBhYm91dCBpdCwgaWYgeW91IGhhdmUgZG9uZSB0aGUgd29yayB0 byByZW1vdmUgaGlnaCBvcmRlcgphbGxvY2F0aW9ucywgcmVtb3ZpbmcgdGhpcyBvcHRpbWlzYXRp b24gaXMgdGhlIGVhc2llc3QgdGhpbmcgdG8gZG8gYW5kCndvdWxkbid0IG1ha2UgdGhpbmdzIHdv cnNlLCBpc24ndCBpdD8KCldlaS4KCj4gSmFuCj4gCj4gCgpfX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZl bEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxt YW4vbGlzdGluZm8veGVuLWRldmVs