From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: [PATCH] x86/xen: enable early use of set_fixmap in 32-bit Xen PV guest Date: Fri, 17 Aug 2018 15:40:16 +0200 Message-ID: <20180817134016.19957-1-jgross__40984.7532785081$1534513151$gmane$org@suse.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 1fqezH-0008Vj-Nr for xen-devel@lists.xenproject.org; Fri, 17 Aug 2018 13:40:23 +0000 List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, x86@kernel.org Cc: Juergen Gross , pasha.tatashin@oracle.com, mingo@redhat.com, hpa@zytor.com, boris.ostrovsky@oracle.com, tglx@linutronix.de List-Id: xen-devel@lists.xenproject.org Q29tbWl0IDdiMjViOWNiMGRhZDgzICgieDg2L3hlbi90aW1lOiBJbml0aWFsaXplIHB2IHhlbiB0 aW1lIGluCmluaXRfaHlwZXJ2aXNvcl9wbGF0Zm9ybSgpIikgbW92ZWQgdGhlIG1hcHBpbmcgb2Yg dGhlIHNoYXJlZCBpbmZvIGFyZWEKYmVmb3JlIHBhZ2V0YWJsZV9pbml0KCkuIFRoaXMgYnJlYWtz IGJvb3RpbmcgYXMgMzItYml0IFBWIGd1ZXN0IGFzIHRoZQp1c2Ugb2Ygc2V0X2ZpeG1hcCBpc24n dCBwb3NzaWJsZSBhdCB0aGlzIHRpbWUgb24gMzItYml0LgoKVGhpcyBjYW4gYmUgd29ya2VkIGFy b3VuZCBieSBwb3B1bGF0aW5nIHRoZSBuZWVkZWQgUE1EIG9uIDMyLWJpdAprZXJuZWwgZWFybGll ci4KCkluIG9yZGVyIG5vdCB0byByZWltcGxlbWVudCBwb3B1bGF0ZV9leHRyYV9wdGUoKSB1c2lu ZyBleHRlbmRfYnJrKCkKZm9yIGFsbG9jYXRpbmcgbmV3IHBhZ2UgdGFibGVzIGV4dGVuZCBhbGxv Y19sb3dfcGFnZXMoKSB0byBkbyB0aGF0IGluCmNhc2UgdGhlIGVhcmx5IHBhZ2UgdGFibGUgcG9v bCBpcyBub3QgeWV0IGF2YWlsYWJsZS4KCkZpeGVzOiA3YjI1YjljYjBkYWQ4MwpTaWduZWQtb2Zm LWJ5OiBKdWVyZ2VuIEdyb3NzIDxqZ3Jvc3NAc3VzZS5jb20+Ci0tLQogYXJjaC94ODYvbW0vaW5p dC5jICAgICAgICAgIHwgMTcgKysrKysrKysrKysrLS0tLS0KIGFyY2gveDg2L3hlbi9lbmxpZ2h0 ZW5fcHYuYyB8ICAyICsrCiBhcmNoL3g4Ni94ZW4vbW11X3B2LmMgICAgICAgfCAgMiArKwogMyBm aWxlcyBjaGFuZ2VkLCAxNiBpbnNlcnRpb25zKCspLCA1IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdp dCBhL2FyY2gveDg2L21tL2luaXQuYyBiL2FyY2gveDg2L21tL2luaXQuYwppbmRleCBhY2ZhYjMy MmZiZTAuLjVjMzJhNzY2NTQ5MiAxMDA2NDQKLS0tIGEvYXJjaC94ODYvbW0vaW5pdC5jCisrKyBi L2FyY2gveDg2L21tL2luaXQuYwpAQCAtOTksMTUgKzk5LDIyIEBAIF9fcmVmIHZvaWQgKmFsbG9j X2xvd19wYWdlcyh1bnNpZ25lZCBpbnQgbnVtKQogCX0KIAogCWlmICgocGd0X2J1Zl9lbmQgKyBu dW0pID4gcGd0X2J1Zl90b3AgfHwgIWNhbl91c2VfYnJrX3BndCkgewotCQl1bnNpZ25lZCBsb25n IHJldDsKLQkJaWYgKG1pbl9wZm5fbWFwcGVkID49IG1heF9wZm5fbWFwcGVkKQotCQkJcGFuaWMo ImFsbG9jX2xvd19wYWdlczogcmFuIG91dCBvZiBtZW1vcnkiKTsKLQkJcmV0ID0gbWVtYmxvY2tf ZmluZF9pbl9yYW5nZShtaW5fcGZuX21hcHBlZCA8PCBQQUdFX1NISUZULAorCQl1bnNpZ25lZCBs b25nIHJldCA9IDA7CisKKwkJaWYgKG1pbl9wZm5fbWFwcGVkIDwgbWF4X3Bmbl9tYXBwZWQpIHsK KwkJCXJldCA9IG1lbWJsb2NrX2ZpbmRfaW5fcmFuZ2UoCisJCQkJCW1pbl9wZm5fbWFwcGVkIDw8 IFBBR0VfU0hJRlQsCiAJCQkJCW1heF9wZm5fbWFwcGVkIDw8IFBBR0VfU0hJRlQsCiAJCQkJCVBB R0VfU0laRSAqIG51bSAsIFBBR0VfU0laRSk7CisJCX0KKwkJaWYgKHJldCkKKwkJCW1lbWJsb2Nr X3Jlc2VydmUocmV0LCBQQUdFX1NJWkUgKiBudW0pOworCQllbHNlIGlmIChjYW5fdXNlX2Jya19w Z3QpCisJCQlyZXQgPSBfX3BhKGV4dGVuZF9icmsoUEFHRV9TSVpFICogbnVtLCBQQUdFX1NJWkUp KTsKKwogCQlpZiAoIXJldCkKIAkJCXBhbmljKCJhbGxvY19sb3dfcGFnZXM6IGNhbiBub3QgYWxs b2MgbWVtb3J5Iik7Ci0JCW1lbWJsb2NrX3Jlc2VydmUocmV0LCBQQUdFX1NJWkUgKiBudW0pOwor CiAJCXBmbiA9IHJldCA+PiBQQUdFX1NISUZUOwogCX0gZWxzZSB7CiAJCXBmbiA9IHBndF9idWZf ZW5kOwpkaWZmIC0tZ2l0IGEvYXJjaC94ODYveGVuL2VubGlnaHRlbl9wdi5jIGIvYXJjaC94ODYv eGVuL2VubGlnaHRlbl9wdi5jCmluZGV4IGVlM2IwMGM3YWNkYS4uZDdiMjAyMmVlMzAxIDEwMDY0 NAotLS0gYS9hcmNoL3g4Ni94ZW4vZW5saWdodGVuX3B2LmMKKysrIGIvYXJjaC94ODYveGVuL2Vu bGlnaHRlbl9wdi5jCkBAIC0xMjIsNiArMTIyLDggQEAgc3RhdGljIHZvaWQgX19pbml0IHhlbl9i YW5uZXIodm9pZCkKIAogc3RhdGljIHZvaWQgX19pbml0IHhlbl9wdl9pbml0X3BsYXRmb3JtKHZv aWQpCiB7CisJcG9wdWxhdGVfZXh0cmFfcHRlKGZpeF90b192aXJ0KEZJWF9QQVJBVklSVF9CT09U TUFQKSk7CisKIAlzZXRfZml4bWFwKEZJWF9QQVJBVklSVF9CT09UTUFQLCB4ZW5fc3RhcnRfaW5m by0+c2hhcmVkX2luZm8pOwogCUhZUEVSVklTT1Jfc2hhcmVkX2luZm8gPSAodm9pZCAqKWZpeF90 b192aXJ0KEZJWF9QQVJBVklSVF9CT09UTUFQKTsKIApkaWZmIC0tZ2l0IGEvYXJjaC94ODYveGVu L21tdV9wdi5jIGIvYXJjaC94ODYveGVuL21tdV9wdi5jCmluZGV4IDUyMjA2YWQ4MWU0Yi4uOWU3 MDEyODU4NDIwIDEwMDY0NAotLS0gYS9hcmNoL3g4Ni94ZW4vbW11X3B2LmMKKysrIGIvYXJjaC94 ODYveGVuL21tdV9wdi5jCkBAIC0yMTcxLDYgKzIxNzEsOCBAQCB2b2lkIF9faW5pdCB4ZW5fcmVs b2NhdGVfcDJtKHZvaWQpCiAjZWxzZQkvKiAhQ09ORklHX1g4Nl82NCAqLwogc3RhdGljIFJFU0VS VkVfQlJLX0FSUkFZKHBtZF90LCBpbml0aWFsX2tlcm5lbF9wbWQsIFBUUlNfUEVSX1BNRCk7CiBz dGF0aWMgUkVTRVJWRV9CUktfQVJSQVkocG1kX3QsIHN3YXBwZXJfa2VybmVsX3BtZCwgUFRSU19Q RVJfUE1EKTsKK1JFU0VSVkVfQlJLKGZpeHVwX2tlcm5lbF9wbWQsIFBBR0VfU0laRSk7CitSRVNF UlZFX0JSSyhmaXh1cF9rZXJuZWxfcHRlLCBQQUdFX1NJWkUpOwogCiBzdGF0aWMgdm9pZCBfX2lu aXQgeGVuX3dyaXRlX2NyM19pbml0KHVuc2lnbmVkIGxvbmcgY3IzKQogewotLSAKMi4xMy43CgoK X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVuLWRldmVs IG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVucHJvamVjdC5vcmcKaHR0cHM6Ly9saXN0 cy54ZW5wcm9qZWN0Lm9yZy9tYWlsbWFuL2xpc3RpbmZvL3hlbi1kZXZlbA==