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d="scan'208";a="13325079" Date: Wed, 19 Feb 2020 18:52:08 +0100 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Wei Liu Message-ID: <20200219175208.GH4679@Air-de-Roger> References: <20200219114411.26922-1-liuwe@microsoft.com> <20200219114411.26922-4-liuwe@microsoft.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200219114411.26922-4-liuwe@microsoft.com> X-ClientProxiedBy: AMSPEX02CAS01.citrite.net (10.69.22.112) To AMSPEX02CL01.citrite.net (10.69.22.125) Subject: Re: [Xen-devel] [PATCH v4 3/3] x86/hyperv: L0 assisted TLB flush 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 , Jan Beulich , 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" T24gV2VkLCBGZWIgMTksIDIwMjAgYXQgMTE6NDQ6MTFBTSArMDAwMCwgV2VpIExpdSB3cm90ZToK PiBJbXBsZW1lbnQgTDAgYXNzaXN0ZWQgVExCIGZsdXNoIGZvciBYZW4gb24gSHlwZXItVi4gSXQg dGFrZXMgYWR2YW50YWdlCj4gb2Ygc2V2ZXJhbCBoeXBlcmNhbGxzOgo+IAo+ICAqIEhWQ0FMTF9G TFVTSF9WSVJUVUFMX0FERFJFU1NfTElTVAo+ICAqIEhWQ0FMTF9GTFVTSF9WSVJUVUFMX0FERFJF U1NfTElTVF9FWAo+ICAqIEhWQ0FMTF9GTFVTSF9WSVJUVUFMX0FERFJFU1NfU1BBQ0UKPiAgKiBI VkNBTExfRkxVU0hfVklSVFVBTF9BRERSRVNTX1NQQUNFX0VYCj4gCj4gUGljayB0aGUgbW9zdCBl ZmZpY2llbnQgaHlwZXJjYWxscyBhdmFpbGFibGUuCj4gCj4gU2lnbmVkLW9mZi1ieTogV2VpIExp dSA8bGl1d2VAbWljcm9zb2Z0LmNvbT4KCkxHVE06CgpSZXZpZXdlZC1ieTogUm9nZXIgUGF1IE1v bm7DqSA8cm9nZXIucGF1QGNpdHJpeC5jb20+Cgo+ICtpbnQgY3B1bWFza190b192cHNldChzdHJ1 Y3QgaHZfdnBzZXQgKnZwc2V0LAo+ICsgICAgICAgICAgICAgICAgICAgICBjb25zdCBjcHVtYXNr X3QgKm1hc2spCj4gK3sKPiArICAgIGludCBuciA9IDE7Cj4gKyAgICB1bnNpZ25lZCBpbnQgY3B1 LCB2Y3B1X2JhbmssIHZjcHVfb2Zmc2V0Owo+ICsgICAgdW5zaWduZWQgaW50IG1heF9iYW5rcyA9 IG1zX2h5cGVydi5tYXhfdnBfaW5kZXggLyA2NDsKPiArCj4gKyAgICAvKiBVcCB0byA2NCBiYW5r cyBjYW4gYmUgcmVwcmVzZW50ZWQgYnkgdmFsaWRfYmFua19tYXNrICovCj4gKyAgICBpZiAoIG1h eF9iYW5rcyA+IDY0ICkKPiArICAgICAgICByZXR1cm4gLUUyQklHOwo+ICsKPiArICAgIC8qIENs ZWFyIGFsbCBiYW5rcyB0byBhdm9pZCBmbHVzaGluZyB1bndhbnRlZCBDUFVzICovCj4gKyAgICBm b3IgKCB2Y3B1X2JhbmsgPSAwOyB2Y3B1X2JhbmsgPCBtYXhfYmFua3M7IHZjcHVfYmFuaysrICkK PiArICAgICAgICB2cHNldC0+YmFua19jb250ZW50c1t2Y3B1X2JhbmtdID0gMDsKPiArCj4gKyAg ICB2cHNldC0+Zm9ybWF0ID0gSFZfR0VORVJJQ19TRVRfU1BBUlNFXzRLOwo+ICsKPiArICAgIGZv cl9lYWNoX2NwdSAoIGNwdSwgbWFzayApCj4gKyAgICB7Cj4gKyAgICAgICAgdW5zaWduZWQgaW50 IHZjcHUgPSBodl92cF9pbmRleChjcHUpOwo+ICsKPiArICAgICAgICB2Y3B1X2JhbmsgPSB2Y3B1 IC8gNjQ7Cj4gKyAgICAgICAgdmNwdV9vZmZzZXQgPSB2Y3B1ICUgNjQ7Cj4gKwo+ICsgICAgICAg IF9fc2V0X2JpdCh2Y3B1X29mZnNldCwgJnZwc2V0LT5iYW5rX2NvbnRlbnRzW3ZjcHVfYmFua10p Owo+ICsKPiArICAgICAgICBpZiAoIHZjcHVfYmFuayA+PSBuciApCj4gKyAgICAgICAgICAgIG5y ID0gdmNwdV9iYW5rICsgMTsKPiArICAgIH0KPiArCj4gKyAgICAvKiBTb21lIGJhbmtzIG1heSBi ZSBlbXB0eSBidXQgdGhhdCdzIG9rICovCj4gKyAgICB2cHNldC0+dmFsaWRfYmFua19tYXNrID0g fjBVTEwgPj4gKDY0IC0gbnIpOwoKWW91IGNvdWxkIGFsc28gdXNlIHRoZSByZWNlbnRseSBpbnRy b2R1Y2VkIGJpdG1hcF9zZXQgaGVyZS4KClRoYW5rcywgUm9nZXIuCgpfX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhl bi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3RzLnhlbnByb2plY3Qub3Jn L21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs