From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: [PATCH v3 3/4] x86/hvm: re-structure some of the ioreq server look-up loops Date: Tue, 20 Mar 2018 18:05:24 +0000 Message-ID: <20180320180525.28605-4-paul.durrant@citrix.com> References: <20180320180525.28605-1-paul.durrant@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from all-amaz-eas1.inumbo.com ([34.197.232.57]) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1eyLfJ-0002Oe-5S for xen-devel@lists.xenproject.org; Tue, 20 Mar 2018 18:07:17 +0000 In-Reply-To: <20180320180525.28605-1-paul.durrant@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: xen-devel@lists.xenproject.org Cc: Andrew Cooper , Paul Durrant List-Id: xen-devel@lists.xenproject.org VGhpcyBwYXRjaCBpcyBhIGNvc21ldGljIHJlLXN0cnVjdHVyaW5nIG9mIHNvbWUgb2YgdGhlIGxv b3BzIHdpdGggbG9vayB1cAphbiBpb3JlcSBzZXJ2ZXIgYmFzZWQgb24gdGFyZ2V0IGRvbWFpbiBh bmQgc2VydmVyIGlkLgoKVGhlIHJlc3RydWN0dXJpbmcgaXMgZG9uZSBzZXBhcmF0ZWx5IGhlcmUg dG8gZWFzZSByZXZpZXcgb2YgYSBzdWJzcXVlbnQKcGF0Y2guCgpTaWduZWQtb2ZmLWJ5OiBQYXVs IER1cnJhbnQgPHBhdWwuZHVycmFudEBjaXRyaXguY29tPgpSZXZpZXdlZC1ieTogSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPgotLS0KQ2M6IEFuZHJldyBDb29wZXIgPGFuZHJldy5jb29w ZXIzQGNpdHJpeC5jb20+Cgp2MzoKIC0gVGlkeSB1cCBtaXMtaW5kZW50ZWQgYnJlYWsKLS0tCiB4 ZW4vYXJjaC94ODYvaHZtL2lvcmVxLmMgfCAxMDIgKysrKysrKysrKysrKysrKysrKysrKystLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0KIDEgZmlsZSBjaGFuZ2VkLCA1MSBpbnNlcnRpb25zKCspLCA1 MSBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS94ZW4vYXJjaC94ODYvaHZtL2lvcmVxLmMgYi94 ZW4vYXJjaC94ODYvaHZtL2lvcmVxLmMKaW5kZXggMTU0ZjZmMWEzMi4uZmVjYWJiOTZhOSAxMDA2 NDQKLS0tIGEveGVuL2FyY2gveDg2L2h2bS9pb3JlcS5jCisrKyBiL3hlbi9hcmNoL3g4Ni9odm0v aW9yZXEuYwpAQCAtODM1LDM3ICs4MzUsMzcgQEAgaW50IGh2bV9tYXBfaW9fcmFuZ2VfdG9faW9y ZXFfc2VydmVyKHN0cnVjdCBkb21haW4gKmQsIGlvc2VydmlkX3QgaWQsCiAgICAgICAgICAgICAg ICAgICAgICAgICAgICZkLT5hcmNoLmh2bV9kb21haW4uaW9yZXFfc2VydmVyLmxpc3QsCiAgICAg ICAgICAgICAgICAgICAgICAgICAgIGxpc3RfZW50cnkgKQogICAgIHsKKyAgICAgICAgc3RydWN0 IHJhbmdlc2V0ICpyOworCiAgICAgICAgIGlmICggcyA9PSBkLT5hcmNoLmh2bV9kb21haW4uZGVm YXVsdF9pb3JlcV9zZXJ2ZXIgKQogICAgICAgICAgICAgY29udGludWU7CiAKLSAgICAgICAgaWYg KCBzLT5pZCA9PSBpZCApCi0gICAgICAgIHsKLSAgICAgICAgICAgIHN0cnVjdCByYW5nZXNldCAq cjsKLQotICAgICAgICAgICAgc3dpdGNoICggdHlwZSApCi0gICAgICAgICAgICB7Ci0gICAgICAg ICAgICBjYXNlIFhFTl9ETU9QX0lPX1JBTkdFX1BPUlQ6Ci0gICAgICAgICAgICBjYXNlIFhFTl9E TU9QX0lPX1JBTkdFX01FTU9SWToKLSAgICAgICAgICAgIGNhc2UgWEVOX0RNT1BfSU9fUkFOR0Vf UENJOgotICAgICAgICAgICAgICAgIHIgPSBzLT5yYW5nZVt0eXBlXTsKLSAgICAgICAgICAgICAg ICBicmVhazsKKyAgICAgICAgaWYgKCBzLT5pZCAhPSBpZCApCisgICAgICAgICAgICBjb250aW51 ZTsKIAotICAgICAgICAgICAgZGVmYXVsdDoKLSAgICAgICAgICAgICAgICByID0gTlVMTDsKLSAg ICAgICAgICAgICAgICBicmVhazsKLSAgICAgICAgICAgIH0KKyAgICAgICAgc3dpdGNoICggdHlw ZSApCisgICAgICAgIHsKKyAgICAgICAgY2FzZSBYRU5fRE1PUF9JT19SQU5HRV9QT1JUOgorICAg ICAgICBjYXNlIFhFTl9ETU9QX0lPX1JBTkdFX01FTU9SWToKKyAgICAgICAgY2FzZSBYRU5fRE1P UF9JT19SQU5HRV9QQ0k6CisgICAgICAgICAgICByID0gcy0+cmFuZ2VbdHlwZV07CisgICAgICAg ICAgICBicmVhazsKIAotICAgICAgICAgICAgcmMgPSAtRUlOVkFMOwotICAgICAgICAgICAgaWYg KCAhciApCi0gICAgICAgICAgICAgICAgYnJlYWs7CisgICAgICAgIGRlZmF1bHQ6CisgICAgICAg ICAgICByID0gTlVMTDsKKyAgICAgICAgICAgIGJyZWFrOworICAgICAgICB9CiAKLSAgICAgICAg ICAgIHJjID0gLUVFWElTVDsKLSAgICAgICAgICAgIGlmICggcmFuZ2VzZXRfb3ZlcmxhcHNfcmFu Z2Uociwgc3RhcnQsIGVuZCkgKQotICAgICAgICAgICAgICAgIGJyZWFrOworICAgICAgICByYyA9 IC1FSU5WQUw7CisgICAgICAgIGlmICggIXIgKQorICAgICAgICAgICAgYnJlYWs7CiAKLSAgICAg ICAgICAgIHJjID0gcmFuZ2VzZXRfYWRkX3JhbmdlKHIsIHN0YXJ0LCBlbmQpOworICAgICAgICBy YyA9IC1FRVhJU1Q7CisgICAgICAgIGlmICggcmFuZ2VzZXRfb3ZlcmxhcHNfcmFuZ2Uociwgc3Rh cnQsIGVuZCkgKQogICAgICAgICAgICAgYnJlYWs7Ci0gICAgICAgIH0KKworICAgICAgICByYyA9 IHJhbmdlc2V0X2FkZF9yYW5nZShyLCBzdGFydCwgZW5kKTsKKyAgICAgICAgYnJlYWs7CiAgICAg fQogCiAgICAgc3Bpbl91bmxvY2tfcmVjdXJzaXZlKCZkLT5hcmNoLmh2bV9kb21haW4uaW9yZXFf c2VydmVyLmxvY2spOwpAQCAtODkwLDM3ICs4OTAsMzcgQEAgaW50IGh2bV91bm1hcF9pb19yYW5n ZV9mcm9tX2lvcmVxX3NlcnZlcihzdHJ1Y3QgZG9tYWluICpkLCBpb3NlcnZpZF90IGlkLAogICAg ICAgICAgICAgICAgICAgICAgICAgICAmZC0+YXJjaC5odm1fZG9tYWluLmlvcmVxX3NlcnZlci5s aXN0LAogICAgICAgICAgICAgICAgICAgICAgICAgICBsaXN0X2VudHJ5ICkKICAgICB7CisgICAg ICAgIHN0cnVjdCByYW5nZXNldCAqcjsKKwogICAgICAgICBpZiAoIHMgPT0gZC0+YXJjaC5odm1f ZG9tYWluLmRlZmF1bHRfaW9yZXFfc2VydmVyICkKICAgICAgICAgICAgIGNvbnRpbnVlOwogCi0g ICAgICAgIGlmICggcy0+aWQgPT0gaWQgKQotICAgICAgICB7Ci0gICAgICAgICAgICBzdHJ1Y3Qg cmFuZ2VzZXQgKnI7Ci0KLSAgICAgICAgICAgIHN3aXRjaCAoIHR5cGUgKQotICAgICAgICAgICAg ewotICAgICAgICAgICAgY2FzZSBYRU5fRE1PUF9JT19SQU5HRV9QT1JUOgotICAgICAgICAgICAg Y2FzZSBYRU5fRE1PUF9JT19SQU5HRV9NRU1PUlk6Ci0gICAgICAgICAgICBjYXNlIFhFTl9ETU9Q X0lPX1JBTkdFX1BDSToKLSAgICAgICAgICAgICAgICByID0gcy0+cmFuZ2VbdHlwZV07Ci0gICAg ICAgICAgICAgICAgYnJlYWs7CisgICAgICAgIGlmICggcy0+aWQgIT0gaWQgKQorICAgICAgICAg ICAgY29udGludWU7CiAKLSAgICAgICAgICAgIGRlZmF1bHQ6Ci0gICAgICAgICAgICAgICAgciA9 IE5VTEw7Ci0gICAgICAgICAgICAgICAgYnJlYWs7Ci0gICAgICAgICAgICB9CisgICAgICAgIHN3 aXRjaCAoIHR5cGUgKQorICAgICAgICB7CisgICAgICAgIGNhc2UgWEVOX0RNT1BfSU9fUkFOR0Vf UE9SVDoKKyAgICAgICAgY2FzZSBYRU5fRE1PUF9JT19SQU5HRV9NRU1PUlk6CisgICAgICAgIGNh c2UgWEVOX0RNT1BfSU9fUkFOR0VfUENJOgorICAgICAgICAgICAgciA9IHMtPnJhbmdlW3R5cGVd OworICAgICAgICAgICAgYnJlYWs7CiAKLSAgICAgICAgICAgIHJjID0gLUVJTlZBTDsKLSAgICAg ICAgICAgIGlmICggIXIgKQotICAgICAgICAgICAgICAgIGJyZWFrOworICAgICAgICBkZWZhdWx0 OgorICAgICAgICAgICAgciA9IE5VTEw7CisgICAgICAgICAgICBicmVhazsKKyAgICAgICAgfQog Ci0gICAgICAgICAgICByYyA9IC1FTk9FTlQ7Ci0gICAgICAgICAgICBpZiAoICFyYW5nZXNldF9j b250YWluc19yYW5nZShyLCBzdGFydCwgZW5kKSApCi0gICAgICAgICAgICAgICAgYnJlYWs7Cisg ICAgICAgIHJjID0gLUVJTlZBTDsKKyAgICAgICAgaWYgKCAhciApCisgICAgICAgICAgICBicmVh azsKIAotICAgICAgICAgICAgcmMgPSByYW5nZXNldF9yZW1vdmVfcmFuZ2Uociwgc3RhcnQsIGVu ZCk7CisgICAgICAgIHJjID0gLUVOT0VOVDsKKyAgICAgICAgaWYgKCAhcmFuZ2VzZXRfY29udGFp bnNfcmFuZ2Uociwgc3RhcnQsIGVuZCkgKQogICAgICAgICAgICAgYnJlYWs7Ci0gICAgICAgIH0K KworICAgICAgICByYyA9IHJhbmdlc2V0X3JlbW92ZV9yYW5nZShyLCBzdGFydCwgZW5kKTsKKyAg ICAgICAgYnJlYWs7CiAgICAgfQogCiAgICAgc3Bpbl91bmxvY2tfcmVjdXJzaXZlKCZkLT5hcmNo Lmh2bV9kb21haW4uaW9yZXFfc2VydmVyLmxvY2spOwpAQCAtOTU4LDExICs5NTgsMTEgQEAgaW50 IGh2bV9tYXBfbWVtX3R5cGVfdG9faW9yZXFfc2VydmVyKHN0cnVjdCBkb21haW4gKmQsIGlvc2Vy dmlkX3QgaWQsCiAgICAgICAgIGlmICggcyA9PSBkLT5hcmNoLmh2bV9kb21haW4uZGVmYXVsdF9p b3JlcV9zZXJ2ZXIgKQogICAgICAgICAgICAgY29udGludWU7CiAKLSAgICAgICAgaWYgKCBzLT5p ZCA9PSBpZCApCi0gICAgICAgIHsKLSAgICAgICAgICAgIHJjID0gcDJtX3NldF9pb3JlcV9zZXJ2 ZXIoZCwgZmxhZ3MsIHMpOwotICAgICAgICAgICAgYnJlYWs7Ci0gICAgICAgIH0KKyAgICAgICAg aWYgKCBzLT5pZCAhPSBpZCApCisgICAgICAgICAgICBjb250aW51ZTsKKworICAgICAgICByYyA9 IHAybV9zZXRfaW9yZXFfc2VydmVyKGQsIGZsYWdzLCBzKTsKKyAgICAgICAgYnJlYWs7CiAgICAg fQogCiAgICAgc3Bpbl91bmxvY2tfcmVjdXJzaXZlKCZkLT5hcmNoLmh2bV9kb21haW4uaW9yZXFf c2VydmVyLmxvY2spOwotLSAKMi4xMS4wCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMu eGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3Rp bmZvL3hlbi1kZXZlbA==