From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andy Smith Subject: Clarification regarding Meltdown and 64-bit PV guests Date: Sat, 13 Jan 2018 06:42:23 +0000 Message-ID: <20180113064223.GT29360@bitfolk.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 4.84_2) (envelope-from ) id 1eaFWM-0003yo-Mu for xen-devel@lists.xenproject.org; Sat, 13 Jan 2018 06:42:26 +0000 Received: from andy by mail.bitfolk.com with local (Exim 4.84_2) (envelope-from ) id 1eaFWJ-0003M5-Eu for xen-devel@lists.xenproject.org; Sat, 13 Jan 2018 06:42:23 +0000 Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org SGksCgpJbgo8aHR0cHM6Ly9ibG9nLnhlbnByb2plY3Qub3JnLzIwMTgvMDEvMDQveGVuLXByb2pl Y3Qtc3BlY3RyZW1lbHRkb3duLWZhcS8+OgoKICAgICJPbiBJbnRlbCBwcm9jZXNzb3JzLCBvbmx5 IDY0LWJpdCBQViBtb2RlIGd1ZXN0cyBjYW4gYXR0YWNrIFhlbgogICAgdXNpbmcgVmFyaWFudCAz LiBHdWVzdHMgcnVubmluZyBpbiAzMi1iaXQgUFYgbW9kZSwgSFZNIG1vZGUsIGFuZAogICAgUFZI IG1vZGUgKGJvdGggdjEgYW5kIHYyKSBjYW5ub3QgYXR0YWNrIHRoZSBoeXBlcnZpc29yIHVzaW5n CiAgICBWYXJpYW50IDMuIEhvd2V2ZXIsIGluIDMyLWJpdCBQViBtb2RlLCBIVk0gbW9kZSwgYW5k IFBWSCBtb2RlCiAgICAoYm90aCB2MSBhbmQgdjIpLCBndWVzdCB1c2Vyc3BhY2VzIGNhbiBhdHRh Y2sgZ3Vlc3Qga2VybmVscwogICAgdXNpbmcgVmFyaWFudCAzOyBzbyB1cGRhdGluZyBndWVzdCBr ZXJuZWxzIGlzIGFkdmlzYWJsZS4KCiAgICBJbnRlcmVzdGluZ2x5LCBndWVzdCBrZXJuZWxzIHJ1 bm5pbmcgaW4gNjQtYml0IFBWIG1vZGUgYXJlIG5vdAogICAgdnVsbmVyYWJsZSB0byBhdHRhY2sg dXNpbmcgVmFyaWFudCAzLCBiZWNhdXNlIDY0LWJpdCBQViBndWVzdHMKICAgIGFscmVhZHkgcnVu IGluIGEgS1BUSS1saWtlIG1vZGUuIgoKSG93ZXZlciwgaW4gbXVsdGlwbGUgb3RoZXIgcGxhY2Vz LCBpbmNsdWRpbmcKPGh0dHBzOi8veGVuYml0cy54ZW4ub3JnL3hzYS94c2EyNTQvUkVBRE1FLmNv bWV0PiBhbmQKPGh0dHBzOi8veGVuYml0cy54ZW4ub3JnL3hzYS94c2EyNTQvUkVBRE1FLnZpeGVu PjoKCiAgICAiTm90ZSB0aGF0IGJvdGggb2YgdGhlc2Ugc2hpbS1iYXNlZCBhcHByb2FjaGVzIHBy ZXZlbnQgYXR0YWNrcyBvbgogICAgdGhlIGhvc3QsIGJ1dCBsZWF2ZSB0aGUgZ3Vlc3QgdnVsbmVy YWJsZSB0byBNZWx0ZG93biBhdHRhY2tzIGJ5CiAgICBpdHMgb3duIHVucHJpdmlsZWdlZCBwcm9j ZXNzZXM7IHRoaXMgaXMgdHJ1ZSBldmVuIGlmIHRoZSBndWVzdAogICAgT1MgaGFzIEtQVEkgb3Ig c2ltaWxhciBNZWx0ZG93biBtaXRpZ2F0aW9uLiIKClRoZXNlIHNlZW0gdG8gY29udHJhZGljdCBl YWNoIG90aGVyLgoKVGhlIEZBUSBzZWVtcyB0byBzdWdnZXN0IHRoYXQ6CgotIDMyLWJpdCBQViBn dWVzdCB1c2VybGFuZCBwcm9jZXNzZXMgY2FuIHVzZSBWYXJpYW50IDMgYWdhaW5zdCB0aGVpcgog IG93biBrZXJuZWxzIGFuZCB0aGF0IHRoZSBLUFRJIHBhdGNoIHdvdWxkIHByb3RlY3QgYWdhaW5z dCB0aGF0LgoKLSBXaXRob3V0IENvbWV0L1ZpeGVuLCA2NC1iaXQgUFYgZ3Vlc3RzIGNhbid0IHVz ZSBWYXJpYW50IDMgb24KICB0aGVtc2VsdmVzIGJ1dCBjYW4gdXNlIGl0IG9uIHRoZSBoeXBlcnZp c29yLCBhbmQgS1BUSSBwYXRjaGVzIGluCiAgdGhlIGd1ZXN0IGRvIG5vdCBwcmV2ZW50IHRoYXQu CgotIFJ1bm5pbmcgUFYgZ3Vlc3RzIGluc2lkZSBDb21ldCBvciBWaXhlbiBwcmV2ZW50cyB0aGVt IG1ha2luZyB1c2UKICBvZiBWYXJpYW50IDMsIHRoZXkgc3RpbGwgY2Fubm90IHVzZSBWYXJpYW50 IDMgYWdhaW5zdCB0aGVpciBvd24KICBrZXJuZWxzLCBhbmQgS1BUSSBwYXRjaGVzIGluIHRoZSBn dWVzdCBhcmUgbm90IG5lY2Vzc2FyeS4KClRoZSBDb21ldCBhbmQgVml4ZW4gUkVBRE1FcyBzZWVt IHRvIHN1Z2dlc3QgdGhhdDoKCi0gVXNlIG9mIENvbWV0L1ZpeGVuIHByZXZlbnRzIFBWIGd1ZXN0 cyBmcm9tIHVzaW5nIFZhcmlhbnQgMyBhZ2FpbnN0CiAgdGhlIGh5cGVydmlzb3IgKGFuZCB0aHVz IG90aGVyIGd1ZXN0cyBhcyB3ZWxsKS4KCi0gVGhlIGd1ZXN0IGl0c2VsZiByZW1haW5zIGFibGUg dG8gdXNlIFZhcmlhbnQgMyBvbiBpdHMgb3duIGtlcm5lbAogIGFuZCBLUFRJIHBhdGNoZXMgaW5z aWRlIHRoZSBndWVzdCBjYW5ub3QgcHJldmVudCB0aGlzLgoKV2hpY2ggaXMgY29ycmVjdCwgb3Ig aGF2ZSBJIG1pc3VuZGVyc3Rvb2QgYW5kIHRoZXkgYXJlIHNvbWVob3cgYm90aApjb3JyZWN0PwoK Q2hlZXJzLApBbmR5CgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9y ZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs