From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew Cooper Subject: [PATCH 1/3] x86/paging: Enforce PG_external == PG_translate == PG_refcounts Date: Tue, 13 Dec 2016 16:54:32 +0000 Message-ID: <1481648074-11455-2-git-send-email-andrew.cooper3@citrix.com> References: <1481648074-11455-1-git-send-email-andrew.cooper3@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <1481648074-11455-1-git-send-email-andrew.cooper3@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Xen-devel Cc: George Dunlap , Andrew Cooper List-Id: xen-devel@lists.xenproject.org U2V0dGluZyBQR19yZWZjb3VudHMgYnV0IG5vdCBQR190cmFuc2xhdGUgaXMgbm90IHVzZWZ1bC4K CldoaWxlIGFkanVzdGluZyB0aGlzLCBtYWtlIGEgZmV3IG90aGVyIGltcHJvdmVtZW50cy4KCiAq IEhhdmUgcGFnaW5nX2VuYWJsZSgpIHVuaWxhdGVyYWxseSByZWplY3QgYW55IHVua25vd24gbW9k ZXMuCiAqIERyb3AgdGhlIG9yJ2luZyBvZiBQR197SEFQLFNIfV9lbmFibGUuICBUaGUgdW5kZXJs eWluZyBmdW5jdGlvbnMgYWxyZWFkeSBkbwogICB0aGlzLgoKU2lnbmVkLW9mZi1ieTogQW5kcmV3 IENvb3BlciA8YW5kcmV3LmNvb3BlcjNAY2l0cml4LmNvbT4KQWNrZWQtYnk6IFRpbSBEZWVnYW4g PHRpbUB4ZW4ub3JnPgpSZXZpZXdlZC1ieTogSmFuIEJldWxpY2ggPGpiZXVsaWNoQHN1c2UuY29t PgotLS0KQ0M6IEdlb3JnZSBEdW5sYXAgPGdlb3JnZS5kdW5sYXBAZXUuY2l0cml4LmNvbT4KCnYy OgogKiBEcm9wIHJlZmVyZW5jZXMgdG8gbG9nZGlydHkKLS0tCiB4ZW4vYXJjaC94ODYvbW0vcGFn aW5nLmMgICAgICAgIHwgMTMgKysrKysrKysrLS0tLQogeGVuL2FyY2gveDg2L21tL3NoYWRvdy9j b21tb24uYyB8ICAzICstLQogeGVuL2luY2x1ZGUvYXNtLXg4Ni9wYWdpbmcuaCAgICB8ICAzICsr KwogMyBmaWxlcyBjaGFuZ2VkLCAxMyBpbnNlcnRpb25zKCspLCA2IGRlbGV0aW9ucygtKQoKZGlm ZiAtLWdpdCBhL3hlbi9hcmNoL3g4Ni9tbS9wYWdpbmcuYyBiL3hlbi9hcmNoL3g4Ni9tbS9wYWdp bmcuYwppbmRleCA4NTNhMDM1Li40NDM3NjExIDEwMDY0NAotLS0gYS94ZW4vYXJjaC94ODYvbW0v cGFnaW5nLmMKKysrIGIveGVuL2FyY2gveDg2L21tL3BhZ2luZy5jCkBAIC04NDYsMTkgKzg0Niwy NCBAQCB2b2lkIHBhZ2luZ19maW5hbF90ZWFyZG93bihzdHJ1Y3QgZG9tYWluICpkKQogICogY3Jl YXRpb24uICovCiBpbnQgcGFnaW5nX2VuYWJsZShzdHJ1Y3QgZG9tYWluICpkLCB1MzIgbW9kZSkK IHsKLSAgICBzd2l0Y2ggKCBtb2RlICYgKFBHX2V4dGVybmFsIHwgUEdfdHJhbnNsYXRlKSApCisg ICAgLyogVW5yZWNvZ25pc2VkIHBhZ2luZyBtb2RlPyAqLworICAgIGlmICggbW9kZSAmIH5QR19N QVNLICkKKyAgICAgICAgcmV0dXJuIC1FSU5WQUw7CisKKyAgICAvKiBBbGwgb2YgZXh0ZXJuYWx8 dHJhbnNsYXRlfHJlZmNvdW50cywgb3Igbm9uZS4gKi8KKyAgICBzd2l0Y2ggKCBtb2RlICYgKFBH X2V4dGVybmFsIHwgUEdfdHJhbnNsYXRlIHwgUEdfcmVmY291bnRzKSApCiAgICAgewogICAgIGNh c2UgMDoKLSAgICBjYXNlIFBHX2V4dGVybmFsIHwgUEdfdHJhbnNsYXRlOgorICAgIGNhc2UgUEdf ZXh0ZXJuYWwgfCBQR190cmFuc2xhdGUgfCBQR19yZWZjb3VudHM6CiAgICAgICAgIGJyZWFrOwog ICAgIGRlZmF1bHQ6CiAgICAgICAgIHJldHVybiAtRUlOVkFMOwogICAgIH0KIAogICAgIGlmICgg aGFwX2VuYWJsZWQoZCkgKQotICAgICAgICByZXR1cm4gaGFwX2VuYWJsZShkLCBtb2RlIHwgUEdf SEFQX2VuYWJsZSk7CisgICAgICAgIHJldHVybiBoYXBfZW5hYmxlKGQsIG1vZGUpOwogICAgIGVs c2UKLSAgICAgICAgcmV0dXJuIHNoYWRvd19lbmFibGUoZCwgbW9kZSB8IFBHX1NIX2VuYWJsZSk7 CisgICAgICAgIHJldHVybiBzaGFkb3dfZW5hYmxlKGQsIG1vZGUpOwogfQogCiAvKiBDYWxsZWQg ZnJvbSB0aGUgZ3Vlc3QgdG8gaW5kaWNhdGUgdGhhdCBhIHByb2Nlc3MgaXMgYmVpbmcgdG9ybiBk b3duCmRpZmYgLS1naXQgYS94ZW4vYXJjaC94ODYvbW0vc2hhZG93L2NvbW1vbi5jIGIveGVuL2Fy Y2gveDg2L21tL3NoYWRvdy9jb21tb24uYwppbmRleCBhY2IzNWMyLi43OWJiMTJlIDEwMDY0NAot LS0gYS94ZW4vYXJjaC94ODYvbW0vc2hhZG93L2NvbW1vbi5jCisrKyBiL3hlbi9hcmNoL3g4Ni9t bS9zaGFkb3cvY29tbW9uLmMKQEAgLTMxNDQsOCArMzE0NCw3IEBAIGludCBzaGFkb3dfZW5hYmxl KHN0cnVjdCBkb21haW4gKmQsIHUzMiBtb2RlKQogICAgIGRvbWFpbl9wYXVzZShkKTsKIAogICAg IC8qIFNhbml0eSBjaGVjayB0aGUgYXJndW1lbnRzICovCi0gICAgaWYgKCBzaGFkb3dfbW9kZV9l bmFibGVkKGQpIHx8Ci0gICAgICAgICAoKG1vZGUgJiBQR190cmFuc2xhdGUpICYmICEobW9kZSAm IFBHX3JlZmNvdW50cykpICkKKyAgICBpZiAoIHNoYWRvd19tb2RlX2VuYWJsZWQoZCkgKQogICAg IHsKICAgICAgICAgcnYgPSAtRUlOVkFMOwogICAgICAgICBnb3RvIG91dF91bmxvY2tlZDsKZGlm ZiAtLWdpdCBhL3hlbi9pbmNsdWRlL2FzbS14ODYvcGFnaW5nLmggYi94ZW4vaW5jbHVkZS9hc20t eDg2L3BhZ2luZy5oCmluZGV4IGY4M2VkOGIuLmNjMjlmOWIgMTAwNjQ0Ci0tLSBhL3hlbi9pbmNs dWRlL2FzbS14ODYvcGFnaW5nLmgKKysrIGIveGVuL2luY2x1ZGUvYXNtLXg4Ni9wYWdpbmcuaApA QCAtNTcsNiArNTcsOSBAQAogICogcmVxdWlyZXMgVlQgb3Igc2ltaWxhciBtZWNoYW5pc21zICov CiAjZGVmaW5lIFBHX2V4dGVybmFsICAgIChYRU5fRE9NQ1RMX1NIQURPV19FTkFCTEVfRVhURVJO QUwgPDwgUEdfbW9kZV9zaGlmdCkKIAorLyogQWxsIHBhZ2luZyBtb2Rlcy4gKi8KKyNkZWZpbmUg UEdfTUFTSyAoUEdfcmVmY291bnRzIHwgUEdfbG9nX2RpcnR5IHwgUEdfdHJhbnNsYXRlIHwgUEdf ZXh0ZXJuYWwpCisKICNkZWZpbmUgcGFnaW5nX21vZGVfZW5hYmxlZChfZCkgICAoISEoX2QpLT5h cmNoLnBhZ2luZy5tb2RlKQogI2RlZmluZSBwYWdpbmdfbW9kZV9zaGFkb3coX2QpICAgICghISgo X2QpLT5hcmNoLnBhZ2luZy5tb2RlICYgUEdfU0hfZW5hYmxlKSkKICNkZWZpbmUgcGFnaW5nX21v ZGVfaGFwKF9kKSAgICAgICAoISEoKF9kKS0+YXJjaC5wYWdpbmcubW9kZSAmIFBHX0hBUF9lbmFi bGUpKQotLSAKMi4xLjQKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0 dHBzOi8vbGlzdHMueGVuLm9yZy94ZW4tZGV2ZWwK