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d="scan'208";a="11850886" Date: Thu, 30 Jan 2020 13:42:29 +0100 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Wei Liu Message-ID: <20200130124229.GN4679@Air-de-Roger> References: <20200129202034.15052-1-liuwe@microsoft.com> <20200129202034.15052-13-liuwe@microsoft.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200129202034.15052-13-liuwe@microsoft.com> X-ClientProxiedBy: AMSPEX02CAS02.citrite.net (10.69.22.113) To AMSPEX02CL01.citrite.net (10.69.22.125) Subject: Re: [Xen-devel] [PATCH v5 12/12] x86/hyperv: setup VP assist page X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Wei Liu , Andrew Cooper , Paul Durrant , Michael Kelley , Xen Development List Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" T24gV2VkLCBKYW4gMjksIDIwMjAgYXQgMDg6MjA6MzRQTSArMDAwMCwgV2VpIExpdSB3cm90ZToK PiBWUCBhc3Npc3QgcGFnZSBpcyByYXRoZXIgaW1wb3J0YW50IGFzIHdlIG5lZWQgdG8gdG9nZ2xl IHNvbWUgYml0cyBpbiBpdAo+IGZvciBlZmZpY2llbnQgbmVzdGVkIHZpcnR1YWxpc2F0aW9uLgo+ IAo+IFNpZ25lZC1vZmYtYnk6IFdlaSBMaXUgPGxpdXdlQG1pY3Jvc29mdC5jb20+Cj4gLS0tCj4g djU6Cj4gMS4gRGVhbCB3aXRoIGVycm9yIHByb3Blcmx5IGluc3RlYWQgb2YgYWx3YXlzIHBhbmlj a2luZwo+IDIuIFN3YXAgcGVyY3B1IHZhcmlhYmxlcyBkZWNsYXJhdGlvbnMnIGxvY2F0aW9uCj4g Cj4gdjQ6Cj4gMS4gVXNlIHByaXZhdGUuaAo+IDIuIFByZXZlbnQgbGVhawo+IAo+IHYzOgo+IDEu IFVzZSB4ZW5oZWFwIHBhZ2UKPiAyLiBEcm9wIHNldF92cF9hc3Npc3QKPiAKPiB2MjoKPiAxLiBV c2UgSFZfSFlQX1BBR0VfU0hJRlQgaW5zdGVhZAo+IC0tLQo+ICB4ZW4vYXJjaC94ODYvZ3Vlc3Qv aHlwZXJ2L2h5cGVydi5jICB8IDQ0ICsrKysrKysrKysrKysrKysrKysrKysrKysrKystCj4gIHhl bi9hcmNoL3g4Ni9ndWVzdC9oeXBlcnYvcHJpdmF0ZS5oIHwgIDEgKwo+ICAyIGZpbGVzIGNoYW5n ZWQsIDQ0IGluc2VydGlvbnMoKyksIDEgZGVsZXRpb24oLSkKPiAKPiBkaWZmIC0tZ2l0IGEveGVu L2FyY2gveDg2L2d1ZXN0L2h5cGVydi9oeXBlcnYuYyBiL3hlbi9hcmNoL3g4Ni9ndWVzdC9oeXBl cnYvaHlwZXJ2LmMKPiBpbmRleCBhZjBkNmVkNjkyLi5iYzQwYTNkMzM4IDEwMDY0NAo+IC0tLSBh L3hlbi9hcmNoL3g4Ni9ndWVzdC9oeXBlcnYvaHlwZXJ2LmMKPiArKysgYi94ZW4vYXJjaC94ODYv Z3Vlc3QvaHlwZXJ2L2h5cGVydi5jCj4gQEAgLTMxLDYgKzMxLDcgQEAKPiAgCj4gIHN0cnVjdCBt c19oeXBlcnZfaW5mbyBfX3JlYWRfbW9zdGx5IG1zX2h5cGVydjsKPiAgREVGSU5FX1BFUl9DUFVf UkVBRF9NT1NUTFkodm9pZCAqLCBodl9wY3B1X2lucHV0X3BhZ2UpOwo+ICtERUZJTkVfUEVSX0NQ VV9SRUFEX01PU1RMWSh2b2lkICosIGh2X3ZwX2Fzc2lzdCk7Cj4gIERFRklORV9QRVJfQ1BVX1JF QURfTU9TVExZKHVuc2lnbmVkIGludCwgaHZfdnBfaW5kZXgpOwo+ICAKPiAgc3RhdGljIHVpbnQ2 NF90IGdlbmVyYXRlX2d1ZXN0X2lkKHZvaWQpCj4gQEAgLTE1NSwxNiArMTU2LDU3IEBAIHN0YXRp YyBpbnQgc2V0dXBfaHlwZXJjYWxsX3BjcHVfYXJnKHZvaWQpCj4gICAgICByZXR1cm4gMDsKPiAg fQo+ICAKPiArc3RhdGljIGludCBzZXR1cF92cF9hc3Npc3Qodm9pZCkKPiArewo+ICsgICAgdm9p ZCAqbWFwcGluZzsKPiArICAgIHVpbnQ2NF90IHZhbDsKPiArCj4gKyAgICBtYXBwaW5nID0gdGhp c19jcHUoaHZfdnBfYXNzaXN0KTsKCllvdSBjb3VsZCBhbHNvIGF2b2lkIHRoZSB1c2FnZSBvZiB0 aGUgbG9jYWwgbWFwcGluZyB2YXJpYWJsZSBoZXJlLgoKPiArCj4gKyAgICBpZiAoICFtYXBwaW5n ICkKPiArICAgIHsKPiArICAgICAgICBtYXBwaW5nID0gYWxsb2NfeGVuaGVhcF9wYWdlKCk7Cj4g KyAgICAgICAgaWYgKCAhbWFwcGluZyApCj4gKyAgICAgICAgewo+ICsgICAgICAgICAgICBwcmlu dGsoIkZhaWxlZCB0byBhbGxvY2F0ZSB2cF9hc3Npc3QgcGFnZSBmb3IgQ1BVJXVcbiIsCj4gKyAg ICAgICAgICAgICAgICAgICBzbXBfcHJvY2Vzc29yX2lkKCkpOwo+ICsgICAgICAgICAgICByZXR1 cm4gLUVOT01FTTsKPiArICAgICAgICB9Cj4gKwo+ICsgICAgICAgIGNsZWFyX3BhZ2UobWFwcGlu Zyk7Cj4gKyAgICAgICAgdGhpc19jcHUoaHZfdnBfYXNzaXN0KSA9IG1hcHBpbmc7Cj4gKyAgICB9 Cj4gKwo+ICsgICAgdmFsID0gKHZpcnRfdG9fbWZuKG1hcHBpbmcpIDw8IEhWX0hZUF9QQUdFX1NI SUZUKQoKVGhlcmUncyB2aXJ0X3RvX21hZGRyIHdoaWNoIHdvdWxkIGF2b2lkIHRoZSBzaGlmdC4K Cj4gKyAgICAgICAgfCBIVl9YNjRfTVNSX1ZQX0FTU0lTVF9QQUdFX0VOQUJMRTsKPiArICAgIHdy bXNybChIVl9YNjRfTVNSX1ZQX0FTU0lTVF9QQUdFLCB2YWwpOwo+ICsKPiArICAgIHJldHVybiAw Owo+ICt9Cj4gKwo+ICBzdGF0aWMgdm9pZCBfX2luaXQgc2V0dXAodm9pZCkKPiAgewo+ICAgICAg c2V0dXBfaHlwZXJjYWxsX3BhZ2UoKTsKPiArCj4gICAgICBpZiAoIHNldHVwX2h5cGVyY2FsbF9w Y3B1X2FyZygpICkKPiAgICAgICAgICBwYW5pYygiSHlwZXJjYWxsIHBlcmNwdSBhcmcgc2V0dXAg ZmFpbGVkXG4iKTsKPiArCj4gKyAgICBpZiAoIHNldHVwX3ZwX2Fzc2lzdCgpICkKPiArICAgICAg ICBwYW5pYygiVlAgYXNzaXN0IHBhZ2Ugc2V0dXAgZmFpbGVkXG4iKTsKPiAgfQo+ICAKPiAgc3Rh dGljIGludCBhcF9zZXR1cCh2b2lkKQo+ICB7Cj4gLSAgICByZXR1cm4gc2V0dXBfaHlwZXJjYWxs X3BjcHVfYXJnKCk7Cj4gKyAgICBpbnQgcmM7Cj4gKwo+ICsgICAgcmMgPSBzZXR1cF9oeXBlcmNh bGxfcGNwdV9hcmcoKTsKPiArICAgIGlmICggcmMgKQo+ICsgICAgICAgIGdvdG8gb3V0OwoKTm8g bmVlZCBmb3IgYSBsYWJlbCwgYXMganVzdCByZXR1cm5pbmcgaGVyZSB3b3VsZCBtYWtlIHRoZSBm dW5jdGlvbgpzaG9ydGVyOgoKcmMgPSBzZXR1cF9oeXBlcmNhbGxfcGNwdV9hcmcoKTsKaWYgKCBy YyApCiAgICByZXR1cm4gcmM7CgpyZXR1cm4gc2V0dXBfdnBfYXNzaXN0KCk7CgpUaGFua3MsIFJv Z2VyLgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVu LWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6 Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==