From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Carpenter Subject: [bug report] xen/privcmd: add IOCTL_PRIVCMD_MMAP_RESOURCE Date: Thu, 7 Jun 2018 11:32:17 +0300 Message-ID: <20180607083217.6gxbt57qhwcq6hpw@kili.mountain> 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 1fQqLW-000856-HD for xen-devel@lists.xenproject.org; Thu, 07 Jun 2018 08:32:38 +0000 Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" To: paul.durrant@citrix.com Cc: xen-devel@lists.xenproject.org List-Id: xen-devel@lists.xenproject.org SGVsbG8gUGF1bCBEdXJyYW50LAoKVGhlIHBhdGNoIDNhZDA4NzY1NTRjYTogInhlbi9wcml2Y21k OiBhZGQKSU9DVExfUFJJVkNNRF9NTUFQX1JFU09VUkNFIiBmcm9tIE1heSA5LCAyMDE4LCBsZWFk cyB0byB0aGUgZm9sbG93aW5nCnN0YXRpYyBjaGVja2VyIHdhcm5pbmc6CgoJZHJpdmVycy94ZW4v cHJpdmNtZC5jOjgyNyBwcml2Y21kX2lvY3RsX21tYXBfcmVzb3VyY2UoKQoJd2FybjogcGFzc2lu ZyBjYXN0ZWQgcG9pbnRlciAncGZucycgdG8gJ3hlbl9yZW1hcF9kb21haW5fbWZuX2FycmF5KCkn IDY0IHZzIDMyLgoKZHJpdmVycy94ZW4vcHJpdmNtZC5jCiAgIDc0NiAgc3RhdGljIGxvbmcgcHJp dmNtZF9pb2N0bF9tbWFwX3Jlc291cmNlKHN0cnVjdCBmaWxlICpmaWxlLCB2b2lkIF9fdXNlciAq dWRhdGEpCiAgIDc0NyAgewogICA3NDggICAgICAgICAgc3RydWN0IHByaXZjbWRfZGF0YSAqZGF0 YSA9IGZpbGUtPnByaXZhdGVfZGF0YTsKICAgNzQ5ICAgICAgICAgIHN0cnVjdCBtbV9zdHJ1Y3Qg Km1tID0gY3VycmVudC0+bW07CiAgIDc1MCAgICAgICAgICBzdHJ1Y3Qgdm1fYXJlYV9zdHJ1Y3Qg KnZtYTsKICAgNzUxICAgICAgICAgIHN0cnVjdCBwcml2Y21kX21tYXBfcmVzb3VyY2Uga2RhdGE7 CiAgIDc1MiAgICAgICAgICB4ZW5fcGZuX3QgKnBmbnMgPSBOVUxMOwogICA3NTMgICAgICAgICAg c3RydWN0IHhlbl9tZW1fYWNxdWlyZV9yZXNvdXJjZSB4ZGF0YTsKICAgNzU0ICAgICAgICAgIGlu dCByYzsKICAgNzU1ICAKICAgNzU2ICAgICAgICAgIGlmIChjb3B5X2Zyb21fdXNlcigma2RhdGEs IHVkYXRhLCBzaXplb2Yoa2RhdGEpKSkKICAgNzU3ICAgICAgICAgICAgICAgICAgcmV0dXJuIC1F RkFVTFQ7CiAgIDc1OCAgCiAgIDc1OSAgICAgICAgICAvKiBJZiByZXN0cmljdGlvbiBpcyBpbiBw bGFjZSwgY2hlY2sgdGhlIGRvbWlkIG1hdGNoZXMgKi8KICAgNzYwICAgICAgICAgIGlmIChkYXRh LT5kb21pZCAhPSBET01JRF9JTlZBTElEICYmIGRhdGEtPmRvbWlkICE9IGtkYXRhLmRvbSkKICAg NzYxICAgICAgICAgICAgICAgICAgcmV0dXJuIC1FUEVSTTsKICAgNzYyICAKICAgNzYzICAgICAg ICAgIGRvd25fd3JpdGUoJm1tLT5tbWFwX3NlbSk7CiAgIDc2NCAgCiAgIDc2NSAgICAgICAgICB2 bWEgPSBmaW5kX3ZtYShtbSwga2RhdGEuYWRkcik7CiAgIDc2NiAgICAgICAgICBpZiAoIXZtYSB8 fCB2bWEtPnZtX29wcyAhPSAmcHJpdmNtZF92bV9vcHMpIHsKICAgNzY3ICAgICAgICAgICAgICAg ICAgcmMgPSAtRUlOVkFMOwogICA3NjggICAgICAgICAgICAgICAgICBnb3RvIG91dDsKICAgNzY5 ICAgICAgICAgIH0KICAgNzcwICAKICAgNzcxICAgICAgICAgIHBmbnMgPSBrY2FsbG9jKGtkYXRh Lm51bSwgc2l6ZW9mKCpwZm5zKSwgR0ZQX0tFUk5FTCk7CiAgIDc3MiAgICAgICAgICBpZiAoIXBm bnMpIHsKICAgNzczICAgICAgICAgICAgICAgICAgcmMgPSAtRU5PTUVNOwogICA3NzQgICAgICAg ICAgICAgICAgICBnb3RvIG91dDsKICAgNzc1ICAgICAgICAgIH0KICAgNzc2ICAKICAgNzc3ICAg ICAgICAgIGlmICh4ZW5fZmVhdHVyZShYRU5GRUFUX2F1dG9fdHJhbnNsYXRlZF9waHlzbWFwKSkg ewogICA3NzggICAgICAgICAgICAgICAgICB1bnNpZ25lZCBpbnQgbnIgPSBESVZfUk9VTkRfVVAo a2RhdGEubnVtLCBYRU5fUEZOX1BFUl9QQUdFKTsKICAgNzc5ICAgICAgICAgICAgICAgICAgc3Ry dWN0IHBhZ2UgKipwYWdlczsKICAgNzgwICAgICAgICAgICAgICAgICAgdW5zaWduZWQgaW50IGk7 CiAgIDc4MSAgCiAgIDc4MiAgICAgICAgICAgICAgICAgIHJjID0gYWxsb2NfZW1wdHlfcGFnZXMo dm1hLCBucik7CiAgIDc4MyAgICAgICAgICAgICAgICAgIGlmIChyYyA8IDApCiAgIDc4NCAgICAg ICAgICAgICAgICAgICAgICAgICAgZ290byBvdXQ7CiAgIDc4NSAgCiAgIDc4NiAgICAgICAgICAg ICAgICAgIHBhZ2VzID0gdm1hLT52bV9wcml2YXRlX2RhdGE7CiAgIDc4NyAgICAgICAgICAgICAg ICAgIGZvciAoaSA9IDA7IGkgPCBrZGF0YS5udW07IGkrKykgewogICA3ODggICAgICAgICAgICAg ICAgICAgICAgICAgIHhlbl9wZm5fdCBwZm4gPQogICA3ODkgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgcGFnZV90b194ZW5fcGZuKHBhZ2VzW2kgLyBYRU5fUEZOX1BFUl9QQUdFXSk7 CiAgIDc5MCAgCiAgIDc5MSAgICAgICAgICAgICAgICAgICAgICAgICAgcGZuc1tpXSA9IHBmbiAr IChpICUgWEVOX1BGTl9QRVJfUEFHRSk7CiAgIDc5MiAgICAgICAgICAgICAgICAgIH0KICAgNzkz ICAgICAgICAgIH0gZWxzZQogICA3OTQgICAgICAgICAgICAgICAgICB2bWEtPnZtX3ByaXZhdGVf ZGF0YSA9IFBSSVZfVk1BX0xPQ0tFRDsKICAgNzk1ICAKICAgNzk2ICAgICAgICAgIG1lbXNldCgm eGRhdGEsIDAsIHNpemVvZih4ZGF0YSkpOwogICA3OTcgICAgICAgICAgeGRhdGEuZG9taWQgPSBr ZGF0YS5kb207CiAgIDc5OCAgICAgICAgICB4ZGF0YS50eXBlID0ga2RhdGEudHlwZTsKICAgNzk5 ICAgICAgICAgIHhkYXRhLmlkID0ga2RhdGEuaWQ7CiAgIDgwMCAgICAgICAgICB4ZGF0YS5mcmFt ZSA9IGtkYXRhLmlkeDsKICAgODAxICAgICAgICAgIHhkYXRhLm5yX2ZyYW1lcyA9IGtkYXRhLm51 bTsKICAgODAyICAgICAgICAgIHNldF94ZW5fZ3Vlc3RfaGFuZGxlKHhkYXRhLmZyYW1lX2xpc3Qs IHBmbnMpOwogICA4MDMgIAogICA4MDQgICAgICAgICAgeGVuX3ByZWVtcHRpYmxlX2hjYWxsX2Jl Z2luKCk7CiAgIDgwNSAgICAgICAgICByYyA9IEhZUEVSVklTT1JfbWVtb3J5X29wKFhFTk1FTV9h Y3F1aXJlX3Jlc291cmNlLCAmeGRhdGEpOwogICA4MDYgICAgICAgICAgeGVuX3ByZWVtcHRpYmxl X2hjYWxsX2VuZCgpOwogICA4MDcgIAogICA4MDggICAgICAgICAgaWYgKHJjKQogICA4MDkgICAg ICAgICAgICAgICAgICBnb3RvIG91dDsKICAgODEwICAKICAgODExICAgICAgICAgIGlmICh4ZW5f ZmVhdHVyZShYRU5GRUFUX2F1dG9fdHJhbnNsYXRlZF9waHlzbWFwKSkgewogICA4MTIgICAgICAg ICAgICAgICAgICBzdHJ1Y3QgcmVtYXBfcGZuIHIgPSB7CiAgIDgxMyAgICAgICAgICAgICAgICAg ICAgICAgICAgLm1tID0gdm1hLT52bV9tbSwKICAgODE0ICAgICAgICAgICAgICAgICAgICAgICAg ICAucGFnZXMgPSB2bWEtPnZtX3ByaXZhdGVfZGF0YSwKICAgODE1ICAgICAgICAgICAgICAgICAg ICAgICAgICAucHJvdCA9IHZtYS0+dm1fcGFnZV9wcm90LAogICA4MTYgICAgICAgICAgICAgICAg ICB9OwogICA4MTcgIAogICA4MTggICAgICAgICAgICAgICAgICByYyA9IGFwcGx5X3RvX3BhZ2Vf cmFuZ2Uoci5tbSwga2RhdGEuYWRkciwKICAgODE5ICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIGtkYXRhLm51bSA8PCBQQUdFX1NISUZULAogICA4MjAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgcmVtYXBfcGZuX2ZuLCAmcik7CiAgIDgy MSAgICAgICAgICB9IGVsc2UgewogICA4MjIgICAgICAgICAgICAgICAgICB1bnNpZ25lZCBpbnQg ZG9taWQgPQogICA4MjMgICAgICAgICAgICAgICAgICAgICAgICAgICh4ZGF0YS5mbGFncyAmIFhF Tk1FTV9yc3JjX2FjcV9jYWxsZXJfb3duZWQpID8KICAgODI0ICAgICAgICAgICAgICAgICAgICAg ICAgICBET01JRF9TRUxGIDoga2RhdGEuZG9tOwogICA4MjUgICAgICAgICAgICAgICAgICBpbnQg bnVtOwogICA4MjYgIAogICA4MjcgICAgICAgICAgICAgICAgICBudW0gPSB4ZW5fcmVtYXBfZG9t YWluX21mbl9hcnJheSh2bWEsCiAgIDgyOCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgIGtkYXRhLmFkZHIgJiBQQUdFX01BU0ssCiAgIDgyOSAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIHBmbnMsIGtkYXRhLm51 bSwgKGludCAqKXBmbnMsCiAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgIF5eXl4gICAgICAgICAgICAgXl5eXl5eXl5eXl4KSSdtIGEgbmV3Ymll IHRvIHRoaXMgY29kZSwgYnV0IEkgZG9uJ3QgdW5kZXJzdGFuZCBob3cgaXQgY2FuIGJlIHJpZ2h0 Li4uClRoZSAoaW50ICopcGZucyBhcmd1bWVudCBpcyB1c2VkIHRvIHN0b3JlIGludGVnZXIgZXJy b3IgY29kZXMsIGJ1dCB0aGF0CndpbGwgb25seSB3cml0ZSB0byB0aGUgZmlyc3QgaGFsZiBvZiB0 aGUgYnVmZmVyPyAgVW5sZXNzIHRoaXMgb25seSB3b3JrcwpvbiAzMiBiaXQgQ1BVcz8KCiAgIDgz MCAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgIHZtYS0+ dm1fcGFnZV9wcm90LAogICA4MzEgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICBkb21pZCwKICAgODMyICAgICAgICAgICAgICAgICAgICAgICAgICAgICAg ICAgICAgICAgICAgICAgICAgICAgdm1hLT52bV9wcml2YXRlX2RhdGEpOwogICA4MzMgICAgICAg ICAgICAgICAgICBpZiAobnVtIDwgMCkKICAgODM0ICAgICAgICAgICAgICAgICAgICAgICAgICBy YyA9IG51bTsKICAgODM1ICAgICAgICAgICAgICAgICAgZWxzZSBpZiAobnVtICE9IGtkYXRhLm51 bSkgewogICA4MzYgICAgICAgICAgICAgICAgICAgICAgICAgIHVuc2lnbmVkIGludCBpOwogICA4 MzcgIAogICA4MzggICAgICAgICAgICAgICAgICAgICAgICAgIGZvciAoaSA9IDA7IGkgPCBudW07 IGkrKykgewogICA4MzkgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgcmMgPSBwZm5z W2ldOwogICA4NDAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgaWYgKHJjIDwgMCkK ICAgODQxICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgICAgYnJlYWs7CiAg IDg0MiAgICAgICAgICAgICAgICAgICAgICAgICAgfQogICA4NDMgICAgICAgICAgICAgICAgICB9 IGVsc2UKICAgODQ0ICAgICAgICAgICAgICAgICAgICAgICAgICByYyA9IDA7CiAgIDg0NSAgICAg ICAgICB9CiAgIDg0NiAgCiAgIDg0NyAgb3V0OgogICA4NDggICAgICAgICAgdXBfd3JpdGUoJm1t LT5tbWFwX3NlbSk7CiAgIDg0OSAgICAgICAgICBrZnJlZShwZm5zKTsKICAgODUwICAKICAgODUx ICAgICAgICAgIHJldHVybiByYzsKICAgODUyICB9CgpyZWdhcmRzLApkYW4gY2FycGVudGVyCgpf X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpYZW4tZGV2ZWwg bWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW5wcm9qZWN0Lm9yZwpodHRwczovL2xpc3Rz LnhlbnByb2plY3Qub3JnL21haWxtYW4vbGlzdGluZm8veGVuLWRldmVs