From mboxrd@z Thu Jan 1 00:00:00 1970 From: Konrad Rzeszutek Wilk Subject: Re: [RFC PATCH 7/9] x86/SVM: Add vcpu scheduling support for AVIC Date: Fri, 14 Oct 2016 11:31:03 -0400 Message-ID: <20161014153102.GC11650@localhost.localdomain> References: <1474264368-4104-1-git-send-email-suravee.suthikulpanit@amd.com> <1474264368-4104-8-git-send-email-suravee.suthikulpanit@amd.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <1474264368-4104-8-git-send-email-suravee.suthikulpanit@amd.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Suravee Suthikulpanit Cc: andrew.cooper3@citrix.com, sherry.hurwitz@amd.com, jbeulich@suse.com, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gTW9uLCBTZXAgMTksIDIwMTYgYXQgMTI6NTI6NDZBTSAtMDUwMCwgU3VyYXZlZSBTdXRoaWt1 bHBhbml0IHdyb3RlOgo+IEFkZCBob29rcyB0byBtYW5hZ2UgQVZJQyBkYXRhIHN0cnVjdHVyZSBk dXJpbmcgdmNwdSBzY2hlZHVsaW5nLgo+IAo+IFNpZ25lZC1vZmYtYnk6IFN1cmF2ZWUgU3V0aGlr dWxwYW5pdCA8c3VyYXZlZS5zdXRoaWt1bHBhbml0QGFtZC5jb20+Cj4gLS0tCj4gIHhlbi9hcmNo L3g4Ni9odm0vc3ZtL2F2aWMuYyB8IDgyICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr KysrKysrKysrKysrKwo+ICB4ZW4vYXJjaC94ODYvaHZtL3N2bS9zdm0uYyAgfCAxMCArKysrKysK PiAgMiBmaWxlcyBjaGFuZ2VkLCA5MiBpbnNlcnRpb25zKCspCj4gCj4gZGlmZiAtLWdpdCBhL3hl bi9hcmNoL3g4Ni9odm0vc3ZtL2F2aWMuYyBiL3hlbi9hcmNoL3g4Ni9odm0vc3ZtL2F2aWMuYwo+ IGluZGV4IDkwZGYxODEuLmNkOGE5ZDQgMTAwNjQ0Cj4gLS0tIGEveGVuL2FyY2gveDg2L2h2bS9z dm0vYXZpYy5jCj4gKysrIGIveGVuL2FyY2gveDg2L2h2bS9zdm0vYXZpYy5jCj4gQEAgLTQ1LDYg KzQ1LDgzIEBAIGF2aWNfZ2V0X3BoeV9haXRfZW50cnkoc3RydWN0IHZjcHUgKnYsIGludCBpbmRl eCkKPiAgfQo+ICAKPiAgLyoqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioq KioqKioqKioqKioqKioqKioqKioqKgo+ICsgKiBBVklDIFZDUFUgU0NIRURVTElORwo+ICsgKi8K PiArc3RhdGljIHZvaWQgYXZpY192Y3B1X2xvYWQoc3RydWN0IHZjcHUgKnYpCj4gK3sKPiArICAg IHN0cnVjdCBhcmNoX3N2bV9zdHJ1Y3QgKnMgPSAmdi0+YXJjaC5odm1fc3ZtOwo+ICsgICAgaW50 IGhfcGh5X2FwaWNfaWQ7Cj4gKyAgICBzdHJ1Y3Qgc3ZtX2F2aWNfcGh5X2FpdF9lbnRyeSBlbnRy eTsKPiArCj4gKyAgICBpZiAoICFzdm1fYXZpYyB8fCAhcy0+YXZpY19waHlfaWRfY2FjaGUgKQo+ ICsgICAgICAgIHJldHVybjsKPiArCj4gKyAgICBpZiAoIHRlc3RfYml0KF9WUEZfYmxvY2tlZCwg JnYtPnBhdXNlX2ZsYWdzKSApCj4gKyAgICAgICAgcmV0dXJuOwo+ICsKPiArICAgIC8qIE5vdGU6 IEFQSUMgSUQgPSAweGZmIGlzIHVzZWQgZm9yIGJyb2FkY2FzdC4KClBsZWFzZSBwdXQgdGhlIE5v dGU6IC4uIG9uIGEgbmV3bGluZS4KClNvIHlvdSBoYXZlIGl0IGxpa2Ugc286CgovKgogKiBOb3Rl OiAuLi4KCgo+ICsgICAgICogICAgICAgQVBJQyBJRCA+IDB4ZmYgaXMgcmVzZXJ2ZWQuCj4gKyAg ICAgKi8KPiArICAgIGhfcGh5X2FwaWNfaWQgPSBjcHVfZGF0YVt2LT5wcm9jZXNzb3JdLmFwaWNp ZDsKPiArICAgIGlmICggaF9waHlfYXBpY19pZCA+PSBBVklDX1BIWV9BUElDX0lEX01BWCApCgpX aGF0IGRvZXMgdGhhdCBtZWFuIHRvIHRoZSBndWVzdD8gSSBwcmVzdW1lIGl0IG1lYW5zIGl0IHdp bGwgYWx3YXlzCmdldCBhbiBWTUVYSVQgYi9jIHRoZSBpc19ydW5uaW5nIGlzIG5vdCBzZXQ/CgpN ZWFuaW5nIHdoYXRldmVyIGd1ZXN0IGVuZHMgdXAgdW5oYXBwaWx5IG9uIGFuIHBoeXNpY2FsIENQ VSB3aXRoCnRoZSBBUElDIElEIG9mIDI1NSBpcyBzY3Jld2VkIDotKD8KClBlcmhhcHMgYXQgYm9v dHVwIHRpbWUgd2hlbiBTVk0gQVZJQyBpcyBpbml0aWFsaXplZCB3ZSBoYXZlIGEgY2hlY2sKZm9y IEFQSUMgSUQgb2YgMjU1IGFuZCBwdXQgYSBibHVyYiBzYXlpbmc6CgoiWW91IGhhdmUgQ1BVJXUg d2l0aCBBUElDIElEIDI1NS4gVGhhdCB2YWx1ZSBmb3IgU1ZNIEFWSUMgaXMgcmVzZXJ2ZWQKd2hp Y2ggaGFzIHRoZSB1bmZvcnR1bmF0ZSBjb25zZXF1ZW5jZSB0aGF0IEFWSUMgaXMgZGlzYWJsZWQg b24gQ1BVJXUuIgoKU28gdGhhdCB0aGUgYWRtaW4gY2FuIHBlcmhhcHMgc2NoZWR1bGUvcGluIGRv bTAgb24gdGhhdCBDUFU/CgoKPiArICAgICAgICByZXR1cm47Cj4gKwo+ICsgICAgZW50cnkgPSAq KHMtPmF2aWNfcGh5X2lkX2NhY2hlKTsKClBlcmhhcHMgaW5zdGVhZCBvZiAnX2NhY2hlJyBzYXkg J19sYXN0JyA/Ckxpa2UgJ2F2aWNfbGFzdF9waHlfaWQnPwoKPiArICAgIHNtcF9ybWIoKTsKPiAr ICAgIGVudHJ5Lmhvc3RfcGh5X2FwaWNfaWQgPSBoX3BoeV9hcGljX2lkOwo+ICsgICAgZW50cnku aXNfcnVubmluZyA9IDE7Cj4gKyAgICAqKHMtPmF2aWNfcGh5X2lkX2NhY2hlKSA9IGVudHJ5Owo+ ICsgICAgc21wX3dtYigpOwo+ICt9Cj4gKwo+ICtzdGF0aWMgdm9pZCBhdmljX3ZjcHVfcHV0KHN0 cnVjdCB2Y3B1ICp2KQo+ICt7Cj4gKyAgICBzdHJ1Y3QgYXJjaF9zdm1fc3RydWN0ICpzID0gJnYt PmFyY2guaHZtX3N2bTsKPiArICAgIHN0cnVjdCBzdm1fYXZpY19waHlfYWl0X2VudHJ5IGVudHJ5 Owo+ICsKPiArICAgIGlmICggIXN2bV9hdmljIHx8ICFzLT5hdmljX3BoeV9pZF9jYWNoZSApCj4g KyAgICAgICAgcmV0dXJuOwo+ICsKPiArICAgIGVudHJ5ID0gKihzLT5hdmljX3BoeV9pZF9jYWNo ZSk7Cj4gKyAgICBzbXBfcm1iKCk7Cj4gKyAgICBlbnRyeS5pc19ydW5uaW5nID0gMDsKPiArICAg ICoocy0+YXZpY19waHlfaWRfY2FjaGUpID0gZW50cnk7Cj4gKyAgICBzbXBfd21iKCk7Cj4gK30K PiArCj4gK3N0YXRpYyB2b2lkIGF2aWNfdmNwdV9yZXN1bWUoc3RydWN0IHZjcHUgKnYpCj4gK3sK PiArICAgIHN0cnVjdCBzdm1fYXZpY19waHlfYWl0X2VudHJ5IGVudHJ5Owo+ICsgICAgc3RydWN0 IGFyY2hfc3ZtX3N0cnVjdCAqcyA9ICZ2LT5hcmNoLmh2bV9zdm07Cj4gKwo+ICsgICAgaWYgKCAh c3ZtX2F2aWNfdmNwdV9lbmFibGVkKHYpIHx8ICFzLT5hdmljX3BoeV9pZF9jYWNoZSApCj4gKyAg ICAgICAgcmV0dXJuOwo+ICsKPiArICAgIEFTU0VSVCghdGVzdF9iaXQoX1ZQRl9ibG9ja2VkLCAm di0+cGF1c2VfZmxhZ3MpKTsKPiArCj4gKyAgICBlbnRyeSA9ICoocy0+YXZpY19waHlfaWRfY2Fj aGUpOwo+ICsgICAgc21wX3JtYigpOwo+ICsgICAgZW50cnkuaXNfcnVubmluZyA9IDE7Cj4gKyAg ICAqKHMtPmF2aWNfcGh5X2lkX2NhY2hlKT0gZW50cnk7CiAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgIF4KUGxlYXNlIGFkZCBhIHNwYWNlIGhlcmUuCgo+ICsgICAgc21wX3dtYigpOwo+ICt9 Cj4gKwo+ICtzdGF0aWMgdm9pZCBhdmljX3ZjcHVfYmxvY2soc3RydWN0IHZjcHUgKnYpCj4gK3sK PiArICAgIHN0cnVjdCBzdm1fYXZpY19waHlfYWl0X2VudHJ5IGVudHJ5Owo+ICsgICAgc3RydWN0 IGFyY2hfc3ZtX3N0cnVjdCAqcyA9ICZ2LT5hcmNoLmh2bV9zdm07Cj4gKwo+ICsgICAgaWYgKCAh c3ZtX2F2aWNfdmNwdV9lbmFibGVkKHYpIHx8ICFzLT5hdmljX3BoeV9pZF9jYWNoZSApCj4gKyAg ICAgICAgcmV0dXJuOwo+ICsKClNob3VsZCB0aGVyZSBiZSBhIGNvcnJlc3BvbmRpbmcgQVNTRVJU PyBPciBpcyB0aGF0CmRvbmUgYWZ0ZXIgdGhlc2UgaG9va3MgYXJlIGNhbGxlZD8KCj4gKyAgICBl bnRyeSA9ICoocy0+YXZpY19waHlfaWRfY2FjaGUpOwo+ICsgICAgc21wX3JtYigpOwo+ICsgICAg ZW50cnkuaXNfcnVubmluZyA9IDA7Cj4gKyAgICAqKHMtPmF2aWNfcGh5X2lkX2NhY2hlKSA9IGVu dHJ5Owo+ICsgICAgc21wX3dtYigpOwo+ICt9Cj4gKwo+ICsvKioqKioqKioqKioqKioqKioqKioq KioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqKioqCj4gICAqIEFWSUMgQVBJ cwo+ICAgKi8KPiAgaW50IHN2bV9hdmljX2RvbV9pbml0KHN0cnVjdCBkb21haW4gKmQpCj4gQEAg LTk3LDYgKzE3NCwxMSBAQCBpbnQgc3ZtX2F2aWNfZG9tX2luaXQoc3RydWN0IGRvbWFpbiAqZCkK PiAgICAgIGNsZWFyX2RvbWFpbl9wYWdlKF9tZm4obWZuKSk7Cj4gICAgICBkLT5hcmNoLmh2bV9k b21haW4uc3ZtLmF2aWNfcGh5X2FpdF9tZm4gPSBtZm47Cj4gIAo+ICsgICAgZC0+YXJjaC5odm1f ZG9tYWluLnBpX29wcy5waV9zd2l0Y2hfdG8gPSBhdmljX3ZjcHVfcHV0Owo+ICsgICAgZC0+YXJj aC5odm1fZG9tYWluLnBpX29wcy5waV9zd2l0Y2hfZnJvbSA9IGF2aWNfdmNwdV9sb2FkOwo+ICsg ICAgZC0+YXJjaC5odm1fZG9tYWluLnBpX29wcy52Y3B1X2Jsb2NrID0gYXZpY192Y3B1X2Jsb2Nr Owo+ICsgICAgZC0+YXJjaC5odm1fZG9tYWluLnBpX29wcy5waV9kb19yZXN1bWUgPSBhdmljX3Zj cHVfcmVzdW1lOwo+ICsKPiAgICAgIHJldHVybiByZXQ7Cj4gIGVycl9vdXQ6Cj4gICAgICBzdm1f YXZpY19kb21fZGVzdHJveShkKTsKPiBkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L2h2bS9zdm0v c3ZtLmMgYi94ZW4vYXJjaC94ODYvaHZtL3N2bS9zdm0uYwo+IGluZGV4IDQwOTA5NmEuLmFhZmJm YTEgMTAwNjQ0Cj4gLS0tIGEveGVuL2FyY2gveDg2L2h2bS9zdm0vc3ZtLmMKPiArKysgYi94ZW4v YXJjaC94ODYvaHZtL3N2bS9zdm0uYwo+IEBAIC0xMDExLDYgKzEwMTEsMTAgQEAgc3RhdGljIHZv aWQgc3ZtX2N0eHRfc3dpdGNoX2Zyb20oc3RydWN0IHZjcHUgKnYpCj4gICAgICBzdm1fdHNjX3Jh dGlvX3NhdmUodik7Cj4gIAo+ICAgICAgc3ZtX3N5bmNfdm1jYih2KTsKPiArCj4gKyAgICBpZiAo IHYtPmRvbWFpbi0+YXJjaC5odm1fZG9tYWluLnBpX29wcy5waV9zd2l0Y2hfZnJvbSApCj4gKyAg ICAgICAgdi0+ZG9tYWluLT5hcmNoLmh2bV9kb21haW4ucGlfb3BzLnBpX3N3aXRjaF9mcm9tKHYp Owo+ICsKPiAgICAgIHN2bV92bWxvYWQocGVyX2NwdShyb290X3ZtY2IsIGNwdSkpOwo+ICAKPiAg ICAgIC8qIFJlc3VtZSB1c2Ugb2YgSVNUcyBub3cgdGhhdCB0aGUgaG9zdCBUUiBpcyByZWluc3Rh dGVkLiAqLwo+IEBAIC0xMDUwLDYgKzEwNTQsOSBAQCBzdGF0aWMgdm9pZCBzdm1fY3R4dF9zd2l0 Y2hfdG8oc3RydWN0IHZjcHUgKnYpCj4gICAgICBzdm1fbHdwX2xvYWQodik7Cj4gICAgICBzdm1f dHNjX3JhdGlvX2xvYWQodik7Cj4gIAo+ICsgICAgaWYgKCB2LT5kb21haW4tPmFyY2guaHZtX2Rv bWFpbi5waV9vcHMucGlfc3dpdGNoX3RvICkKPiArICAgICAgICB2LT5kb21haW4tPmFyY2guaHZt X2RvbWFpbi5waV9vcHMucGlfc3dpdGNoX3RvKHYpOwo+ICsKPiAgICAgIGlmICggY3B1X2hhc19y ZHRzY3AgKQo+ICAgICAgICAgIHdybXNybChNU1JfVFNDX0FVWCwgaHZtX21zcl90c2NfYXV4KHYp KTsKPiAgfQo+IEBAIC0xMDk1LDYgKzExMDIsOSBAQCBzdGF0aWMgdm9pZCBub3JldHVybiBzdm1f ZG9fcmVzdW1lKHN0cnVjdCB2Y3B1ICp2KQo+ICAgICAgICAgIHZtY2Jfc2V0X3ZpbnRyKHZtY2Is IGludHIpOwo+ICAgICAgfQo+ICAKPiArICAgIGlmICggdi0+ZG9tYWluLT5hcmNoLmh2bV9kb21h aW4ucGlfb3BzLnBpX2RvX3Jlc3VtZSApCj4gKyAgICAgICAgdi0+ZG9tYWluLT5hcmNoLmh2bV9k b21haW4ucGlfb3BzLnBpX2RvX3Jlc3VtZSh2KTsKPiArCj4gICAgICBodm1fZG9fcmVzdW1lKHYp Owo+ICAKPiAgICAgIHJlc2V0X3N0YWNrX2FuZF9qdW1wKHN2bV9hc21fZG9fcmVzdW1lKTsKPiAt LSAKPiAxLjkuMQo+IAo+IAo+IF9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fCj4gWGVuLWRldmVsIG1haWxpbmcgbGlzdAo+IFhlbi1kZXZlbEBsaXN0cy54ZW4u b3JnCj4gaHR0cHM6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAoKX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4t ZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==