From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maran Wilson Subject: Re: [RFC PATCH] KVM: x86: Allow Qemu/KVM to use PVH entry point Date: Thu, 7 Dec 2017 15:03:55 -0800 Message-ID: <0b35e55b-47ec-c11a-bd56-75b37e868d31__23580.3250958726$1512688035$gmane$org@oracle.com> References: <1511897682-32060-1-git-send-email-maran.wilson@oracle.com> <176188ca-51f9-ef12-6e93-46ab2d8b8cfc@suse.com> <20171129085044.kc3yqqdcw3zmp2k2@MacBook-Pro-de-Roger.local> <4d213199-ea65-4410-5b7a-63038215e380@oracle.com> <0162f2cd-2d9e-1c89-bb8e-7ac0089f0b3a@suse.com> <20171129141810.q3s3xflsflpjovdd@MacBook-Pro-de-Roger.local> <96f9b4a5-7cb6-19c3-227d-8c48916d5969@oracle.com> <25d6db63-a57d-b15c-2d43-e96c506b4824@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8"; Format="flowed" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1eN5FG-0002fQ-L5 for xen-devel@lists.xenproject.org; Thu, 07 Dec 2017 23:06:22 +0000 In-Reply-To: Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: Paolo Bonzini , Boris Ostrovsky , =?UTF-8?Q?Roger_Pau_Monn=c3=a9?= , Juergen Gross Cc: kvm@vger.kernel.org, rkrcmar@redhat.com, andrew.cooper3@citrix.com, x86@kernel.org, linux-kernel@vger.kernel.org, mingo@redhat.com, JBeulich@suse.com, hpa@zytor.com, xen-devel@lists.xenproject.org, tglx@linutronix.de List-Id: xen-devel@lists.xenproject.org SnVzdCBGWUk6IEkgc2VudCBvdXQgYSB2MiBvZiB0aGlzIHBhdGNoIGJ1dCBpbiBkb2luZyBzbyBJ IG1vdmVkIGEgZmV3IApwZW9wbGUgZnJvbSB0aGUgInRvIiBsaW5lIHRvIHRoZSAiY2MiIGxpbmUu CgpGb3IgYW55b25lIHdobyBwcmV2aW91c2x5IGRpZCBub3QgY29tbWVudCBidXQgc3RpbGwgd2Fu dGVkIHRvIGZvbGxvdyB0aGUgCmRpc2N1c3Npb24sIGhlcmUncyB0aGUgbGluayB0byB0aGUgdjIg ZW1haWw6CgpodHRwczovL2xrbWwub3JnL2xrbWwvMjAxNy8xMi83LzE2MjQKClRoYW5rcywKLU1h cmFuCgpPbiAxMi8xLzIwMTcgMTI6MDggQU0sIFBhb2xvIEJvbnppbmkgd3JvdGU6Cj4gT24gMzAv MTEvMjAxNyAxOToyMywgTWFyYW4gV2lsc29uIHdyb3RlOgo+PiBBcmUgeW91IHNheWluZyB0aGUg TGludXggUFZIIGVudHJ5IGNvZGUgKHN1Y2ggYXMgaW5pdF9wdmhfYm9vdHBhcmFtcygpKQo+PiBz aG91bGQgdXNlIHRoZSBmd19jZmcgaW50ZXJmYWNlIHRvIHJlYWQgdGhlIGU4MjAgbWVtb3J5IG1h cCBkYXRhIGFuZCBwdXQKPj4gaXQgaW50byB0aGUgemVyb3BhZ2U/IEJhc2ljYWxseSwga2VlcGlu ZyB0aGUgcGF0Y2ggdmVyeSBtdWNoIGxpa2UgaXQKPj4gYWxyZWFkeSBpcywganVzdCBleHRyYWN0 aW5nIHRoZSBlODIwIGRhdGEgdmlhIHRoZSBmd19jZmcgaW50ZXJmYWNlCj4+IGluc3RlYWQgb2Yg ZnJvbSB0aGUgc2Vjb25kIG1vZHVsZSBvZiBzdGFydF9pbmZvIHN0cnVjdD8KPiBZZXMuCj4KPj4g SWYgdGhhdCBpcyB0aGUgY2FzZSwgSSBndWVzcyBJJ20gYSBiaXQgaGVzaXRhbnQgdG8gdGhyb3cg dGhlIFFFTVUKPj4gc3BlY2lmaWMgZndfY2ZnIGludGVyZmFjZSBpbnRvIHRoZSBtaXggb24gdGhl IExpbnV4IFBWSCBzaWRlIHdoZW4gdGhlCj4+IGV4aXN0aW5nIFBWSCBBQkkgYWxyZWFkeSBzZWVt cyB0byBjb250YWluIGFuIGludGVyZmFjZSBmb3IgcGFzc2luZwo+PiBtb2R1bGVzL2Jsb2JzIHRv IHRoZSBndWVzdC4gQnV0IGlmIHlvdSBmZWVsIHRoZXJlIGlzIGEgY29tcGVsbGluZyByZWFzb24K Pj4gdG8gdXNlIHRoZSBmd19jZmcgaW50ZXJmYWNlIGhlcmUsIEknbSBoYXBweSB0byBleHBsb3Jl IHRoYXQgYXBwcm9hY2gKPj4gZnVydGhlci4KPiBJIHRoaW5rIHRoZSBzYW1lIGhvbGRzIHRydWUg Zm9yIFhlbiwgYnV0IGl0IGlzIHN0aWxsIHVzaW5nIGEgaHlwZXJjYWxsCj4gdG8gZ2V0IHRoZSBt ZW1vcnkgbWFwLiAgSW4gdGhlIGVuZCwgdXNpbmcgZndfY2ZnIHNlZW1zIGNsb3Nlc3QgdG8gd2hh dAo+IHRoZSBYZW4gY29kZSBkb2VzLgo+Cj4gVGhlcmUgYXJlIG90aGVyIHBvc3NpYmlsaXRpZXM6 Cj4KPiAxKSBkZWZpbmluZyBhIHYyIFBWSCBBQkkgdGhhdCBpbmNsdWRlcyB0aGUgZTgyMCBtYXAg d291bGQgYWxzbyBiZSBhCj4gcG9zc2liaWxpdHkuCj4KPiAyKSBtb2RpZnkgZW5saWdodGVuX3B2 aC5jIHRvIGdldCB0aGUgc3RhcnQgaW5mbyBpbiBtdWx0aWJvb3QgZm9ybWF0LAo+IHNvbWV0aGlu ZyBsaWtlOgo+Cj4gZGlmZiAtLWdpdCBhL2FyY2gveDg2L3hlbi9lbmxpZ2h0ZW5fcHZoLmMgYi9h cmNoL3g4Ni94ZW4vZW5saWdodGVuX3B2aC5jCj4gaW5kZXggOThhYjE3NjczNDU0Li42NTZlNDE0 NDlkYjAgMTAwNjQ0Cj4gLS0tIGEvYXJjaC94ODYveGVuL2VubGlnaHRlbl9wdmguYwo+ICsrKyBi L2FyY2gveDg2L3hlbi9lbmxpZ2h0ZW5fcHZoLmMKPiBAQCAtODgsMTkgKzg4LDIyIEBAIHZvaWQg X19pbml0IHhlbl9wcmVwYXJlX3B2aCh2b2lkKQo+ICAgCXUzMiBtc3I7Cj4gICAJdTY0IHBmbjsK PiAgIAo+IC0JaWYgKHB2aF9zdGFydF9pbmZvLm1hZ2ljICE9IFhFTl9IVk1fU1RBUlRfTUFHSUNf VkFMVUUpIHsKPiArCWlmIChwdmhfc3RhcnRfaW5mby5tYWdpYyA9PSBYRU5fSFZNX1NUQVJUX01B R0lDX1ZBTFVFKSB7Cj4gKwkJeGVuX3B2aCA9IDE7Cj4gKwo+ICsJCWluaXRfcHZoX2Jvb3RwYXJh bXNfeGVuKCk7Cj4gKwo+ICsJCW1zciA9IGNwdWlkX2VieCh4ZW5fY3B1aWRfYmFzZSgpICsgMik7 Cj4gKwkJcGZuID0gX19wYShoeXBlcmNhbGxfcGFnZSk7Cj4gKwkJd3Jtc3Jfc2FmZShtc3IsICh1 MzIpcGZuLCAodTMyKShwZm4gPj4gMzIpKTsKPiArCj4gKwkJeDg2X2luaXQub2VtLmFyY2hfc2V0 dXAgPSB4ZW5fcHZoX2FyY2hfc2V0dXA7Cj4gKwl9IGVsc2UgaWYgKHB2aF9zdGFydF9pbmZvLm1h Z2ljID09IE1VTFRJQk9PVF9JTkZPX01BR0lDX1ZBTFVFKSB7Cj4gKwkJaW5pdF9wdmhfYm9vdHBh cmFtc19tdWx0aWJvb3QoKTsKPiArCj4gKwl9IGVsc2Ugewo+ICAgCQl4ZW5fcmF3X3ByaW50aygi RXJyb3I6IFVuZXhwZWN0ZWQgbWFnaWMgdmFsdWUgKDB4JTA4eClcbiIsCj4gICAJCQkJcHZoX3N0 YXJ0X2luZm8ubWFnaWMpOwo+ICAgCQlCVUcoKTsKPiAgIAl9Cj4gLQo+IC0JeGVuX3B2aCA9IDE7 Cj4gLQo+IC0JbXNyID0gY3B1aWRfZWJ4KHhlbl9jcHVpZF9iYXNlKCkgKyAyKTsKPiAtCXBmbiA9 IF9fcGEoaHlwZXJjYWxsX3BhZ2UpOwo+IC0Jd3Jtc3Jfc2FmZShtc3IsICh1MzIpcGZuLCAodTMy KShwZm4gPj4gMzIpKTsKPiAtCj4gLQlpbml0X3B2aF9ib290cGFyYW1zKCk7Cj4gLQo+IC0JeDg2 X2luaXQub2VtLmFyY2hfc2V0dXAgPSB4ZW5fcHZoX2FyY2hfc2V0dXA7Cj4gICB9Cj4KPgo+IE5v dGUgdGhhdCB0aGlzIHdvdWxkICpub3QqIGJlIGEgbXVsdGlib290LWZvcm1hdCBrZXJuZWwsIGFz IGl0IHdvdWxkCj4gc3RpbGwgaGF2ZSB0aGUgWGVuIFBWSCBFTEYgbm90ZS4gIEl0IHdvdWxkIGp1 c3QgcmV1c2UgdGhlIGZvcm1hdCBvZgo+IHRoZSBzdGFydCBpbmZvIHN0cnVjdC4KPgo+IEhvd2V2 ZXIsIEkgdGhpbmsgaXQgaXMgc2ltcGxlciB0byBqdXN0IHVzZSB0aGUgZTgyMCBtZW1vcnkgbWFw IGZyb20KPiBmd19jZmcuCj4KPiBQYW9sbwoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz LnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0 aW5mby94ZW4tZGV2ZWw=