From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peng Fan Subject: [PATCH] xen/arm: mm: optimize setup_pagetables Date: Wed, 11 May 2016 15:59:58 +0800 Message-ID: <1462953598-20802-1-git-send-email-van.freenix@gmail.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, julien.grall@arm.com, sstabellini@kernel.org Cc: van.freenix@gmail.com List-Id: xen-devel@lists.xenproject.org QmVmb3JlIHJlbG9jYXRpbmcgeGVuIHRvIGhpZ2ggYWRkcmVzcywgbmVlZCB0byBidWlsZAp0aGUg bWFwcGluZyBCT09UX1JFTE9DX1ZJUlRfU1RBUlQgdG8geGVuX3BhZGRyIGludG8KYm9vdF9wZ3Rh YmxlIGFuZCB4ZW5fcGd0YWJsZS4KCkluIHNldHVwX3BhZ2V0YWJsZXMsIHJlbG9jYXRlX3hlbiB3 aWxsIHN3aXRjaCB0aGUgcm9vdApwYWdlIHRhYmxlIGZyb20gYm9vdF9wZ3RhYmxlIHRvIHhlbl9w Z3RhYmxlL2NwdTBfcGd0YWJsZS4KCkJlZm9yZSByZWxvY2F0ZV94ZW46CklmIHRvdWNoaW5nIHhl bl9wZ3RhYmxlLCBubyBuZWVkIHRvIGZsdXNoX3hlbl9kYXRhX3RsYl9yYW5nZV92YV9sb2NhbC4K V2Ugb25seSBuZWVkIHRvIGZsdXNoIHRsYiB3aGVuIHRvdWNoIGJvb3RfcGd0YWJsZS4KQW5kIG5v IG5lZWQgdG8gdXNlIHdyaXRlX3B0ZSBmb3IgeGVuX3BndGFibGUsIHdlIGNhbiBzaW1wbHkgdXNl CiJ4ZW5fc2Vjb25kW3NlY29uZF90YWJsZV9vZmZzZXQoZGVzdF92YSldID0gcHRlOyIKCkFsc28g bW92ZSB0aGUgcGllY2UgY29kZSBuZWFyIERUQi9GaXhtYXAvWEVOX1ZJUlRfU1RBUlQgdG8KYmUg bW9yZSBlYXNpZXIgdG8gdW5kZXJzdGFuZC4KClNpZ25lZC1vZmYtYnk6IFBlbmcgRmFuIDx2YW4u ZnJlZW5peEBnbWFpbC5jb20+CkNjOiBTdGVmYW5vIFN0YWJlbGxpbmkgPHNzdGFiZWxsaW5pQGtl cm5lbC5vcmc+CkNjOiBKdWxpZW4gR3JhbGwgPGp1bGllbi5ncmFsbEBhcm0uY29tPgotLS0KClRo ZXJlIGlzIG5vIGZ1bmN0aW9uIGNoYW5nZSBpbiB0aGlzIHBhdGNoLCBJIGp1c3QgdGhpbmsKdGhl cmUgaXMgbm8gbmVlZCB0byB1c2UgZmx1c2hfeGVuX2RhdGFfdGxiX3JhbmdlX3ZhX2xvY2FsIGFu ZCB3cml0ZV9wdGUKYXQgdGhhdCBwb2ludC4gQW5kIEkgdGVzdGVkIHRoaXMgcGF0Y2ggb24gQUFy Y2g2NC4KCiB4ZW4vYXJjaC9hcm0vbW0uYyB8IDExICsrKysrLS0tLS0tCiAxIGZpbGUgY2hhbmdl ZCwgNSBpbnNlcnRpb25zKCspLCA2IGRlbGV0aW9ucygtKQoKZGlmZiAtLWdpdCBhL3hlbi9hcmNo L2FybS9tbS5jIGIveGVuL2FyY2gvYXJtL21tLmMKaW5kZXggOTRlYTA1NC4uYmViZDgyZiAxMDA2 NDQKLS0tIGEveGVuL2FyY2gvYXJtL21tLmMKKysrIGIveGVuL2FyY2gvYXJtL21tLmMKQEAgLTQ0 MywxMiArNDQzLDYgQEAgdm9pZCBfX2luaXQgc2V0dXBfcGFnZXRhYmxlcyh1bnNpZ25lZCBsb25n IGJvb3RfcGh5c19vZmZzZXQsIHBhZGRyX3QgeGVuX3BhZGRyKQogICAgIGxwYWVfdCBwdGUsICpw OwogICAgIGludCBpOwogCi0gICAgLyogTWFwIHRoZSBkZXN0aW5hdGlvbiBpbiB0aGUgYm9vdCBt aXNjIGFyZWEuICovCi0gICAgZGVzdF92YSA9IEJPT1RfUkVMT0NfVklSVF9TVEFSVDsKLSAgICBw dGUgPSBtZm5fdG9feGVuX2VudHJ5KHhlbl9wYWRkciA+PiBQQUdFX1NISUZULCBXUklURUFMTE9D KTsKLSAgICB3cml0ZV9wdGUoeGVuX3NlY29uZCArIHNlY29uZF90YWJsZV9vZmZzZXQoZGVzdF92 YSksIHB0ZSk7Ci0gICAgZmx1c2hfeGVuX2RhdGFfdGxiX3JhbmdlX3ZhX2xvY2FsKGRlc3RfdmEs IFNFQ09ORF9TSVpFKTsKLQogICAgIC8qIENhbGN1bGF0ZSB2aXJ0LXRvLXBoeXMgb2Zmc2V0IGZv ciB0aGUgbmV3IGxvY2F0aW9uICovCiAgICAgcGh5c19vZmZzZXQgPSB4ZW5fcGFkZHIgLSAodW5z aWduZWQgbG9uZykgX3N0YXJ0OwogCkBAIC00OTgsNiArNDkyLDExIEBAIHZvaWQgX19pbml0IHNl dHVwX3BhZ2V0YWJsZXModW5zaWduZWQgbG9uZyBib290X3BoeXNfb2Zmc2V0LCBwYWRkcl90IHhl bl9wYWRkcikKICAgICAvKiBNYXAgdGhlIGRlc3RpbmF0aW9uIGluIHRoZSBib290IG1pc2MgYXJl YS4gKi8KICAgICBkZXN0X3ZhID0gQk9PVF9SRUxPQ19WSVJUX1NUQVJUOwogICAgIHB0ZSA9IG1m bl90b194ZW5fZW50cnkoeGVuX3BhZGRyID4+IFBBR0VfU0hJRlQsIFdSSVRFQUxMT0MpOworICAg IHhlbl9zZWNvbmRbc2Vjb25kX3RhYmxlX29mZnNldChkZXN0X3ZhKV0gPSBwdGU7CisKKyAgICAv KiBNYXAgdGhlIGRlc3RpbmF0aW9uIGluIHRoZSBib290IG1pc2MgYXJlYS4gKi8KKyAgICBkZXN0 X3ZhID0gQk9PVF9SRUxPQ19WSVJUX1NUQVJUOworICAgIHB0ZSA9IG1mbl90b194ZW5fZW50cnko eGVuX3BhZGRyID4+IFBBR0VfU0hJRlQsIFdSSVRFQUxMT0MpOwogICAgIHdyaXRlX3B0ZShib290 X3NlY29uZCArIHNlY29uZF90YWJsZV9vZmZzZXQoZGVzdF92YSksIHB0ZSk7CiAgICAgZmx1c2hf eGVuX2RhdGFfdGxiX3JhbmdlX3ZhX2xvY2FsKGRlc3RfdmEsIFNFQ09ORF9TSVpFKTsKICNpZmRl ZiBDT05GSUdfQVJNXzY0Ci0tIAoyLjYuMgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3Rz Lnhlbi5vcmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==