From mboxrd@z Thu Jan 1 00:00:00 1970 From: Chao Gao Subject: [PATCH] VT-d PI: disable VT-d PI when APICv is disabled Date: Fri, 2 Jun 2017 00:00:46 +0800 Message-ID: <1496332846-59510-1-git-send-email-chao.gao@intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: xen-devel@lists.xen.org Cc: Andrew Cooper , Kevin Tian , Jun Nakajima , Jan Beulich , Chao Gao List-Id: xen-devel@lists.xenproject.org RnJvbSB0aGUgY29udGV4dCBjYWxsaW5nIHBpX2Rlc2NfaW5pdCgpLCB3ZSBjYW4gY29uY2x1ZGUg dGhlIGN1cnJlbnQKaW1wbGVtZW50YXRpb24gb2YgVlQtZCBQSSBkZXBlbmRzIG9uIENQVS1zaWRl IFBJLiBJZiB3ZSBkaXNhYmxlIEFQSUN2CmJ1dCBlbmFibGUgVlQtZCBQSSBleHBsaWNpdGx5IGlu IHhlbiBib290IGNvbW1hbmQgbGluZSwgd2Ugd291bGQgZ2V0CmFuIGFzc2VydGlvbiBmYWlsdXJl LgoKVGhpcyBwYXRjaCBkaXNhYmxlcyBWVC1kIFBJIHdoZW4gQVBJQ3YgaXMgZGlzYWJsZWQgYW5k IGFkZHMgc29tZQpyZWxhdGVkIGRlc2NyaXB0aW9uIHRvIGRvY3MuCi0tLQogZG9jcy9taXNjL3hl bi1jb21tYW5kLWxpbmUubWFya2Rvd24gfCAzICsrLQogeGVuL2FyY2gveDg2L2h2bS92bXgvdm1j cy5jICAgICAgICAgfCAyICstCiB4ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUuYyB8 IDYgKysrKystCiAzIGZpbGVzIGNoYW5nZWQsIDggaW5zZXJ0aW9ucygrKSwgMyBkZWxldGlvbnMo LSkKCmRpZmYgLS1naXQgYS9kb2NzL21pc2MveGVuLWNvbW1hbmQtbGluZS5tYXJrZG93biBiL2Rv Y3MvbWlzYy94ZW4tY29tbWFuZC1saW5lLm1hcmtkb3duCmluZGV4IDQ0ZDk5ODUuLjI5YzI0MTEg MTAwNjQ0Ci0tLSBhL2RvY3MvbWlzYy94ZW4tY29tbWFuZC1saW5lLm1hcmtkb3duCisrKyBiL2Rv Y3MvbWlzYy94ZW4tY29tbWFuZC1saW5lLm1hcmtkb3duCkBAIC0xMDAxLDcgKzEwMDEsOCBAQCBk ZWJ1ZyBoeXBlcnZpc29yIG9ubHkpLgogPiBEZWZhdWx0OiBgZmFsc2VgCiAKID4+IENvbnRyb2wg dGhlIHVzZSBvZiBpbnRlcnJ1cHQgcG9zdGluZywgd2hpY2ggZGVwZW5kcyBvbiB0aGUgYXZhaWxh YmlsaXR5IG9mCi0+PiBpbnRlcnJ1cHQgcmVtYXBwaW5nLgorPj4gaW50ZXJydXB0IHJlbWFwcGlu ZyBhbmQgQ1BVLXNpZGUgaW50ZXJydXB0IHBvc3Rpbmcgd2hpY2ggcmVxdWlyZXMgQVBJQworPj4g VmlydHVhbGl6YXRpb24gRXh0ZW5zaW9uIGlzIGVuYWJsZWQuCiAKID4gYHFpbnZhbGAgKFZULWQp CiAKZGlmZiAtLWdpdCBhL3hlbi9hcmNoL3g4Ni9odm0vdm14L3ZtY3MuYyBiL3hlbi9hcmNoL3g4 Ni9odm0vdm14L3ZtY3MuYwppbmRleCA4MTAzYjIwLi4xMWJmMDNhIDEwMDY0NAotLS0gYS94ZW4v YXJjaC94ODYvaHZtL3ZteC92bWNzLmMKKysrIGIveGVuL2FyY2gveDg2L2h2bS92bXgvdm1jcy5j CkBAIC00Nyw3ICs0Nyw3IEBAIGJvb2xlYW5fcGFyYW0oInZwaWQiLCBvcHRfdnBpZF9lbmFibGVk KTsKIHN0YXRpYyBib29sX3QgX19yZWFkX21vc3RseSBvcHRfdW5yZXN0cmljdGVkX2d1ZXN0X2Vu YWJsZWQgPSAxOwogYm9vbGVhbl9wYXJhbSgidW5yZXN0cmljdGVkX2d1ZXN0Iiwgb3B0X3VucmVz dHJpY3RlZF9ndWVzdF9lbmFibGVkKTsKIAotc3RhdGljIGJvb2xfdCBfX3JlYWRfbW9zdGx5IG9w dF9hcGljdl9lbmFibGVkID0gMTsKK2Jvb2xfdCBfX3JlYWRfbW9zdGx5IG9wdF9hcGljdl9lbmFi bGVkID0gMTsKIGJvb2xlYW5fcGFyYW0oImFwaWN2Iiwgb3B0X2FwaWN2X2VuYWJsZWQpOwogCiAv KgpkaWZmIC0tZ2l0IGEveGVuL2RyaXZlcnMvcGFzc3Rocm91Z2gvdnRkL2lvbW11LmMgYi94ZW4v ZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUuYwppbmRleCAxOTMyOGY2Li4wMWQxNDcwIDEw MDY0NAotLS0gYS94ZW4vZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUuYworKysgYi94ZW4v ZHJpdmVycy9wYXNzdGhyb3VnaC92dGQvaW9tbXUuYwpAQCAtNDEsNiArNDEsOCBAQAogI2luY2x1 ZGUgInZ0ZC5oIgogI2luY2x1ZGUgIi4uL2F0cy5oIgogCitleHRlcm4gYm9vbF90IG9wdF9hcGlj dl9lbmFibGVkOworCiBzdHJ1Y3QgbWFwcGVkX3JtcnIgewogICAgIHN0cnVjdCBsaXN0X2hlYWQg bGlzdDsKICAgICB1NjQgYmFzZSwgZW5kOwpAQCAtMjI2Niw4ICsyMjY4LDEwIEBAIGludCBfX2lu aXQgaW50ZWxfdnRkX3NldHVwKHZvaWQpCiAgICAgICAgICAqIFdlIGNhbm5vdCB1c2UgcG9zdGVk IGludGVycnVwdCBpZiBYODZfRkVBVFVSRV9DWDE2IGlzCiAgICAgICAgICAqIG5vdCBzdXBwb3J0 ZWQsIHNpbmNlIHdlIGNvdW50IG9uIHRoaXMgZmVhdHVyZSB0bwogICAgICAgICAgKiBhdG9taWNh bGx5IHVwZGF0ZSAxNi1ieXRlIElSVEUgaW4gcG9zdGVkIGZvcm1hdC4KKyAgICAgICAgICogVlQt ZCBQSSBpbXBsZW1lbnRhdGlvbiByZWxpZXMgb24gVk1YIFBJLiBUaHVzLCBkaXNhYmxlCisgICAg ICAgICAqIFZULWQgUEkgd2hlbiBWTVggUEkgaXMgZGlzYWJsZWQuCiAgICAgICAgICAqLwotICAg ICAgICBpZiAoICFjYXBfaW50cl9wb3N0KGlvbW11LT5jYXApIHx8ICFjcHVfaGFzX2N4MTYgKQor ICAgICAgICBpZiAoICFjYXBfaW50cl9wb3N0KGlvbW11LT5jYXApIHx8ICFjcHVfaGFzX2N4MTYg fHwgIW9wdF9hcGljdl9lbmFibGVkICkKICAgICAgICAgICAgIGlvbW11X2ludHBvc3QgPSAwOwog CiAgICAgICAgIGlmICggIXZ0ZF9lcHRfcGFnZV9jb21wYXRpYmxlKGlvbW11KSApCi0tIAoxLjgu My4xCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVu LWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3Rz Lnhlbi5vcmcveGVuLWRldmVsCg==