From mboxrd@z Thu Jan 1 00:00:00 1970 From: Razvan Cojocaru Subject: Re: Behaviour when setting CPU_BASED_MONITOR_TRAP_FLAG in hvm_do_resume() Date: Mon, 7 Mar 2016 16:49:03 +0200 Message-ID: <56DD94DF.5050504@bitdefender.com> References: <56DC322A.8030000@bitdefender.com> <56DD7E8A.8090502@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <56DD7E8A.8090502@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Andrew Cooper , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org T24gMDMvMDcvMjAxNiAwMzoxMyBQTSwgQW5kcmV3IENvb3BlciB3cm90ZToKPiBPbiAwNi8wMy8x NiAxMzozNSwgUmF6dmFuIENvam9jYXJ1IHdyb3RlOgo+PiBIZWxsbywKPj4KPj4gQXNzdW1pbmcg SSBzZXQgdi0+YXJjaC5odm1fdm14LmV4ZWNfY29udHJvbCB8PQo+PiBDUFVfQkFTRURfTU9OSVRP Ul9UUkFQX0ZMQUc7IGluIGh2bV9kb19yZXN1bWUoKSwgd291bGQgdGhhdCBjYXVzZSBhCj4+IFZN RVhJVCB3aXRoIEVYSVRfUkVBU09OX01PTklUT1JfVFJBUF9GTEFHIF9iZWZvcmVfIHRoZSBpbnN0 cnVjdGlvbiBhdCBoZQo+PiBjdXJyZW50IHJJUCBydW5zLCBvciBfYWZ0ZXJfIGl0Pwo+Pgo+PiBB IGZldyB0ZXN0cyBJJ3ZlIHJhbiBzdWdnZXN0IHRoYXQgdGhlIFZNRVhJVCBvY2N1cnMgX2JlZm9y ZV8sIGkuZS4gdGhlCj4+IGluc3RydWN0aW9uIGlzIG5vdCBydW5uaW5nIGJldHdlZW4gc2V0dGlu ZyB0aGUgZmxhZyBhbmQgdGhlIFZNRVhJVCwgYnV0Cj4+IHRoZSBhY3R1YWwgY29kZSBpcyBhIGJp dCBtb3JlIGludm9sdmVkIGFuZCBJIG1pZ2h0IGhhdmUganVzdCBjb21lIGFjcm9zcwo+PiBhIGNv cm5lciBjYXNlLCBzbyBJIHRob3VnaHQgaXQgd291bGQgYmUgYmVzdCB0byBoYXZlIG9mZmljaWFs Cj4+IGNvbmZpcm1hdGlvbiBvbiB0aGUgbGlzdC4KPiAKPiBXb3cgdGhlIFNETSBpcyBvcGFxdWUg aW4gaXRzIGRlc2NyaXB0aW9uIG9mIHRoZSBtb25pdG9yIHRyYXAgZmxhZy4KPiAKPiBNeSByZWFk aW5nIG9mIHNlY3Rpb24gMjUuNS4yIGlzIHRoYXQgeW91IHdpbGwgZ2V0IGEgTVRGIGV4aXQgb24g ZXZlcnkKPiBuZXcgaW5zdHJ1Y3Rpb24gYm91bmRhcnksIG90aGVyIHRoYW4gdGhlIHJpcCBwZW5k aW5nIGF0IHRoZSB2bWVudHJ5LAo+IHdoaWNoIHdvdWxkIGdpdmUgaXQgZmF1bHQgc2VtYW50aWNz Lgo+IAo+IEluIHRoZSBjYXNlIG9mIGludGVyYWN0aW5nIHdpdGggaW50ZXJydXB0cyBvciB0cmFw cywgdGhlIHRyYXAvaW50ZXJydXB0Cj4gYWN0aW9uIHdpbGwgb2NjdXIgYmVmb3JlIHRoZSBNVEYg ZXhpdCwgYW5kIHRoZSBleGl0IHdpbGwgYmUgb24gdGhlCj4gYm91bmRhcnkgc3RhcnRpbmcgdGhl IGV4Y2VwdGlvbiBoYW5kbGVyLgo+IAo+IAo+IFRoaXMgd291bGQgbWFrZSBpdCBjb25zaXN0ZW50 IHdpdGggdGhlIG90aGVyIGludGVyY2VwdCBzZW1hbnRpY3MsIHdoZXJlCj4gZXZlbiBpbnRlcmNl cHRpb24gb2Ygc29mdHdhcmUgdHJhcHMgYmVoYXZlIGxpa2UgZmF1bHRzLiAgKGUuZy4gYy9zIDA3 NDdiYzgpCgpUaGUgaXNzdWUgdHVybmVkIG91dCB0byBiZSB0aGF0IGlmIF9vbmx5XyB0aGUgTVRG IGlzIHNldCBidXQgbm90CnYtPmFyY2guaHZtX3ZjcHUuc2luZ2xlX3N0ZXAsIHZteF9pbnRyX2Fz c2lzdCgpIGRvZXNuJ3QgcmV0dXJuIGVhcmx5OgoKMjIxIHZvaWQgdm14X2ludHJfYXNzaXN0KHZv aWQpCjIyMiB7CjIyMyAgICAgc3RydWN0IGh2bV9pbnRhY2sgaW50YWNrOwoyMjQgICAgIHN0cnVj dCB2Y3B1ICp2ID0gY3VycmVudDsKMjI1ICAgICB1bnNpZ25lZCBpbnQgdHByX3RocmVzaG9sZCA9 IDA7CjIyNiAgICAgZW51bSBodm1faW50YmxrIGludGJsazsKMjI3ICAgICBpbnQgcHRfdmVjdG9y ID0gLTE7CjIyOAoyMjkgICAgIC8qIEJsb2NrIGV2ZW50IGluamVjdGlvbiB3aGVuIHNpbmdsZSBz dGVwIHdpdGggTVRGLiAqLwoyMzAgICAgIGlmICggdW5saWtlbHkodi0+YXJjaC5odm1fdmNwdS5z aW5nbGVfc3RlcCkgKQoyMzEgICAgIHsKMjMyICAgICAgICAgdi0+YXJjaC5odm1fdm14LmV4ZWNf Y29udHJvbCB8PSBDUFVfQkFTRURfTU9OSVRPUl9UUkFQX0ZMQUc7CjIzMyAgICAgICAgIHZteF91 cGRhdGVfY3B1X2V4ZWNfY29udHJvbCh2KTsKMjM0ICAgICAgICAgcmV0dXJuOwoyMzUgICAgIH0K CmkuZS4gZXZlbiBpZiBNVEYgaXMgYWxyZWFkeSBzZXQsIG9ubHkgdi0+YXJjaC5odm1fdmNwdS5z aW5nbGVfc3RlcCBjb3VudHMuCgoKVGhhbmtzLApSYXp2YW4KCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRl dmVsQGxpc3RzLnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==