From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wei Liu Subject: [PATCH RFC 41/55] x86_64/mm: map and unmap page tables in m2p_mapped Date: Thu, 7 Feb 2019 16:44:42 +0000 Message-ID: <20190207164456.9260-42-wei.liu2@citrix.com> References: <20190207164456.9260-1-wei.liu2@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] helo=us1-amaz-eas2.inumbo.com) by lists.xenproject.org with esmtp (Exim 4.89) (envelope-from ) id 1grn1w-0001nx-56 for xen-devel@lists.xenproject.org; Thu, 07 Feb 2019 17:00:04 +0000 In-Reply-To: <20190207164456.9260-1-wei.liu2@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 , Wei Liu , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= List-Id: xen-devel@lists.xenproject.org U2lnbmVkLW9mZi1ieTogV2VpIExpdSA8d2VpLmxpdTJAY2l0cml4LmNvbT4KLS0tCiB4ZW4vYXJj aC94ODYveDg2XzY0L21tLmMgfCAyMiArKysrKysrKysrKysrKystLS0tLS0tCiAxIGZpbGUgY2hh bmdlZCwgMTUgaW5zZXJ0aW9ucygrKSwgNyBkZWxldGlvbnMoLSkKCmRpZmYgLS1naXQgYS94ZW4v YXJjaC94ODYveDg2XzY0L21tLmMgYi94ZW4vYXJjaC94ODYveDg2XzY0L21tLmMKaW5kZXggMjE2 Zjk3Yzk1Zi4uMmI4OGExYWYzNyAxMDA2NDQKLS0tIGEveGVuL2FyY2gveDg2L3g4Nl82NC9tbS5j CisrKyBiL3hlbi9hcmNoL3g4Ni94ODZfNjQvbW0uYwpAQCAtMTMwLDI4ICsxMzAsMzYgQEAgc3Rh dGljIGludCBtMnBfbWFwcGVkKHVuc2lnbmVkIGxvbmcgc3BmbikKIHsKICAgICB1bnNpZ25lZCBs b25nIHZhOwogICAgIGwzX3BnZW50cnlfdCAqbDNfcm9fbXB0OwotICAgIGwyX3BnZW50cnlfdCAq bDJfcm9fbXB0OworICAgIGwyX3BnZW50cnlfdCAqbDJfcm9fbXB0ID0gTlVMTDsKKyAgICBpbnQg cmMgPSBNMlBfTk9fTUFQUEVEOwogCiAgICAgdmEgPSBST19NUFRfVklSVF9TVEFSVCArIHNwZm4g KiBzaXplb2YoKm1hY2hpbmVfdG9fcGh5c19tYXBwaW5nKTsKLSAgICBsM19yb19tcHQgPSBsNGVf dG9fbDNlKGlkbGVfcGdfdGFibGVbbDRfdGFibGVfb2Zmc2V0KHZhKV0pOworICAgIGwzX3JvX21w dCA9IG1hcF94ZW5fcGFnZXRhYmxlX25ldygKKyAgICAgICAgbDRlX2dldF9tZm4oaWRsZV9wZ190 YWJsZVtsNF90YWJsZV9vZmZzZXQodmEpXSkpOwogCiAgICAgc3dpdGNoICggbDNlX2dldF9mbGFn cyhsM19yb19tcHRbbDNfdGFibGVfb2Zmc2V0KHZhKV0pICYKICAgICAgICAgICAgICAoX1BBR0Vf UFJFU0VOVCB8X1BBR0VfUFNFKSkKICAgICB7CiAgICAgICAgIGNhc2UgX1BBR0VfUFNFfF9QQUdF X1BSRVNFTlQ6Ci0gICAgICAgICAgICByZXR1cm4gTTJQXzFHX01BUFBFRDsKKyAgICAgICAgICAg IHJjID0gTTJQXzFHX01BUFBFRDsKKyAgICAgICAgICAgIGdvdG8gb3V0OwogICAgICAgICAvKiBD aGVjayBmb3IgbmV4dCBsZXZlbCAqLwogICAgICAgICBjYXNlIF9QQUdFX1BSRVNFTlQ6CiAgICAg ICAgICAgICBicmVhazsKICAgICAgICAgZGVmYXVsdDoKLSAgICAgICAgICAgIHJldHVybiBNMlBf Tk9fTUFQUEVEOworICAgICAgICAgICAgcmMgPSBNMlBfTk9fTUFQUEVEOworICAgICAgICAgICAg Z290byBvdXQ7CiAgICAgfQotICAgIGwyX3JvX21wdCA9IGwzZV90b19sMmUobDNfcm9fbXB0W2wz X3RhYmxlX29mZnNldCh2YSldKTsKKyAgICBsMl9yb19tcHQgPSBtYXBfeGVuX3BhZ2V0YWJsZV9u ZXcoCisgICAgICAgIGwzZV9nZXRfbWZuKGwzX3JvX21wdFtsM190YWJsZV9vZmZzZXQodmEpXSkp OwogCiAgICAgaWYgKGwyZV9nZXRfZmxhZ3MobDJfcm9fbXB0W2wyX3RhYmxlX29mZnNldCh2YSld KSAmIF9QQUdFX1BSRVNFTlQpCi0gICAgICAgIHJldHVybiBNMlBfMk1fTUFQUEVEOworICAgICAg ICByYyA9IE0yUF8yTV9NQVBQRUQ7CiAKLSAgICByZXR1cm4gTTJQX05PX01BUFBFRDsKKyBvdXQ6 CisgICAgVU5NQVBfWEVOX1BBR0VUQUJMRV9ORVcobDJfcm9fbXB0KTsKKyAgICBVTk1BUF9YRU5f UEFHRVRBQkxFX05FVyhsM19yb19tcHQpOworICAgIHJldHVybiByYzsKIH0KIAogc3RhdGljIGlu dCBzaGFyZV9ob3RhZGRfbTJwX3RhYmxlKHN0cnVjdCBtZW1faG90YWRkX2luZm8gKmluZm8pCi0t IAoyLjExLjAKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f XwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpo dHRwczovL2xpc3RzLnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs