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d="scan'208";a="12287278" Date: Thu, 30 Jan 2020 13:26:55 +0100 From: Roger Pau =?utf-8?B?TW9ubsOp?= To: Wei Liu Message-ID: <20200130122655.GL4679@Air-de-Roger> References: <20200129202034.15052-1-liuwe@microsoft.com> <20200129202034.15052-11-liuwe@microsoft.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20200129202034.15052-11-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 10/12] x86/hyperv: provide percpu hypercall input 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" T24gV2VkLCBKYW4gMjksIDIwMjAgYXQgMDg6MjA6MzJQTSArMDAwMCwgV2VpIExpdSB3cm90ZToK PiBIeXBlci1WJ3MgaW5wdXQgLyBvdXRwdXQgYXJndW1lbnQgbXVzdCBiZSA4IGJ5dGVzIGFsaWdu ZWQgYW4gbm90IGNyb3NzCj4gcGFnZSBib3VuZGFyeS4gT25lIHdheSB0byBzYXRpc2Z5IHRob3Nl IHJlcXVpcmVtZW50cyBpcyB0byB1c2UgcGVyY3B1Cj4gcGFnZS4KPiAKPiBGb3IgdGhlIGZvcmVz ZWVhYmxlIGZ1dHVyZSB3ZSBvbmx5IG5lZWQgdG8gcHJvdmlkZSBpbnB1dCBmb3IgVExCCj4gYW5k IEFQSUMgaHlwZXJjYWxscywgc28gc2tpcCBzZXR0aW5nIHVwIGFuIG91dHB1dCBwYWdlLgo+IAo+ IFdlIHdpbGwgYWxzbyBuZWVkIHRvIHByb3ZpZGUgYW4gYXBfc2V0dXAgaG9vayBmb3Igc2Vjb25k YXJ5IGNwdXMgdG8KPiBzZXR1cCBpdHMgb3duIGlucHV0IHBhZ2UuCj4gCj4gU2lnbmVkLW9mZi1i eTogV2VpIExpdSA8bGl1d2VAbWljcm9zb2Z0LmNvbT4KClJldmlld2VkLWJ5OiBSb2dlciBQYXUg TW9ubsOpIDxyb2dlci5wYXVAY2l0cml4LmNvbT4KCkp1c3Qgc29tZSBuaXRzIGJlbG93LgoKPiAt LS0KPiB2NToKPiAxLiBBZGp1c3QgdG8gbmV3IGFwX3NldHVwCj4gMi4gQ2hhbmdlIHZhcmlhYmxl IG5hbWUgdG8gaHZfcGNwdV9pbnB1dF9wYWdlCj4gCj4gdjQ6Cj4gMS4gQ2hhbmdlIHdvcmRpbmcg aW4gY29tbWl0IG1lc3NhZ2UKPiAyLiBQcmV2ZW50IGxlYWsKPiAzLiBJbnRyb2R1Y2UgYSBwcml2 YXRlIGhlYWRlcgo+IAo+IHYzOgo+IDEuIFVzZSB4ZW5oZWFwIHBhZ2UgaW5zdGVhZAo+IDIuIERy b3AgcGFnZSB0cmFja2luZyBzdHJ1Y3R1cmUKPiAzLiBEcm9wIFBhdWwncyByZXZpZXcgdGFnCj4g LS0tCj4gIHhlbi9hcmNoL3g4Ni9ndWVzdC9oeXBlcnYvaHlwZXJ2LmMgIHwgMzEgKysrKysrKysr KysrKysrKysrKysrKysrKysrKysKPiAgeGVuL2FyY2gveDg2L2d1ZXN0L2h5cGVydi9wcml2YXRl LmggfCAyOSArKysrKysrKysrKysrKysrKysrKysrKysrKysKPiAgMiBmaWxlcyBjaGFuZ2VkLCA2 MCBpbnNlcnRpb25zKCspCj4gIGNyZWF0ZSBtb2RlIDEwMDY0NCB4ZW4vYXJjaC94ODYvZ3Vlc3Qv aHlwZXJ2L3ByaXZhdGUuaAo+IAo+IGRpZmYgLS1naXQgYS94ZW4vYXJjaC94ODYvZ3Vlc3QvaHlw ZXJ2L2h5cGVydi5jIGIveGVuL2FyY2gveDg2L2d1ZXN0L2h5cGVydi9oeXBlcnYuYwo+IGluZGV4 IDQzODdiNjU0MWUuLmYwZmFjY2NiYWQgMTAwNjQ0Cj4gLS0tIGEveGVuL2FyY2gveDg2L2d1ZXN0 L2h5cGVydi9oeXBlcnYuYwo+ICsrKyBiL3hlbi9hcmNoL3g4Ni9ndWVzdC9oeXBlcnYvaHlwZXJ2 LmMKPiBAQCAtMjcsNyArMjcsMTAgQEAKPiAgI2luY2x1ZGUgPGFzbS9ndWVzdC9oeXBlcnYtdGxm cy5oPgo+ICAjaW5jbHVkZSA8YXNtL3Byb2Nlc3Nvci5oPgo+ICAKPiArI2luY2x1ZGUgInByaXZh dGUuaCIKPiArCj4gIHN0cnVjdCBtc19oeXBlcnZfaW5mbyBfX3JlYWRfbW9zdGx5IG1zX2h5cGVy djsKPiArREVGSU5FX1BFUl9DUFVfUkVBRF9NT1NUTFkodm9pZCAqLCBodl9wY3B1X2lucHV0X3Bh Z2UpOwoKSSB3b3VsZCBkcm9wIHRoZSAncGNwdV8nIGZyb20gdGhlIG5hbWUsIGFzIHlvdSBhbHJl YWR5IGtub3cgaXQncwpwZXItY3B1IGJlY2F1c2Ugb2YgdGhlIGFjY2Vzc29ycyB5b3UgaGF2ZSB0 byB1c2UuCgo+ICAKPiAgc3RhdGljIHVpbnQ2NF90IGdlbmVyYXRlX2d1ZXN0X2lkKHZvaWQpCj4g IHsKPiBAQCAtMTI3LDE0ICsxMzAsNDIgQEAgc3RhdGljIHZvaWQgX19pbml0IHNldHVwX2h5cGVy Y2FsbF9wYWdlKHZvaWQpCj4gICAgICB9Cj4gIH0KPiAgCj4gK3N0YXRpYyBpbnQgc2V0dXBfaHlw ZXJjYWxsX3BjcHVfYXJnKHZvaWQpCj4gK3sKPiArICAgIHZvaWQgKm1hcHBpbmc7CgpUaGVyZSdz IG5vIG5lZWQgZm9yIHRoZSBsb2NhbCB2YXJpYWJsZSwgeW91IGNhbiBqdXN0IGFzc2lnbiB0bwp0 aGlzX2NwdShodl9wY3B1X2lucHV0X3BhZ2UpIGRpcmVjdGx5LCBhcyBhIGZhaWx1cmUgd2lsbCBq dXN0IHNldCBpdAp0byBOVUxMIChhcyBpdCBhbHJlYWR5IHdhcykuCgo+ICsKPiArICAgIGlmICgg dGhpc19jcHUoaHZfcGNwdV9pbnB1dF9wYWdlKSApCj4gKyAgICAgICAgcmV0dXJuIDA7Cj4gKwo+ ICsgICAgbWFwcGluZyA9IGFsbG9jX3hlbmhlYXBfcGFnZSgpOwo+ICsgICAgaWYgKCAhbWFwcGlu ZyApCj4gKyAgICB7Cj4gKyAgICAgICAgcHJpbnRrKCJGYWlsZWQgdG8gYWxsb2NhdGUgaHlwZXJj YWxsIGlucHV0IHBhZ2UgZm9yIENQVSV1XG4iLAo+ICsgICAgICAgICAgICAgICBzbXBfcHJvY2Vz c29yX2lkKCkpOwoKSSBmaW5kIGl0IGNsZWFyZXIgdG8gaGF2ZSB0aGUgQ1BVJXUgcHJlZml4IGF0 IHRoZSBiZWdnaW5nIG9mIHRoZSBsaW5lLApidXQgaXQncyB1cCB0byB5b3UuCgo+ICsgICAgICAg IHJldHVybiAtRU5PTUVNOwo+ICsgICAgfQo+ICsKPiArICAgIHRoaXNfY3B1KGh2X3BjcHVfaW5w dXRfcGFnZSkgPSBtYXBwaW5nOwo+ICsKPiArICAgIHJldHVybiAwOwo+ICt9Cj4gKwo+ICBzdGF0 aWMgdm9pZCBfX2luaXQgc2V0dXAodm9pZCkKPiAgewo+ICAgICAgc2V0dXBfaHlwZXJjYWxsX3Bh Z2UoKTsKPiArICAgIGlmICggc2V0dXBfaHlwZXJjYWxsX3BjcHVfYXJnKCkgKQo+ICsgICAgICAg IHBhbmljKCJIeXBlcmNhbGwgcGVyY3B1IGFyZyBzZXR1cCBmYWlsZWRcbiIpOwoKQ291bGQgeW91 IGFkZCAiSHlwZXJWIGh5cGVyY2FsbC4uLiIsIGp1c3QgaHlwZXJjYWxsIHBhZ2UgaXMgdG9vCmdl bmVyaWMgSU1PLgoKVGhhbmtzLCBSb2dlci4KCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz LnhlbnByb2plY3Qub3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0 aW5mby94ZW4tZGV2ZWw=