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d="scan'208";a="395806119" Received: from tlengyel-mobl2.amr.corp.intel.com (HELO localhost.localdomain) ([10.251.132.23]) by orsmga005.jf.intel.com with ESMTP; 08 Jan 2020 09:14:42 -0800 From: Tamas K Lengyel To: xen-devel@lists.xenproject.org Date: Wed, 8 Jan 2020 09:14:09 -0800 Message-Id: <4e285f09f6c68deccf009b16c86898a78e349997.1578503483.git.tamas.lengyel@intel.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: References: MIME-Version: 1.0 Subject: [Xen-devel] [PATCH v4 12/18] x86/mem_sharing: Enable mem_sharing on first memop X-BeenThere: xen-devel@lists.xenproject.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Cc: Tamas K Lengyel , Tamas K Lengyel , Wei Liu , George Dunlap , Andrew Cooper , Jan Beulich , =?UTF-8?q?Roger=20Pau=20Monn=C3=A9?= Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: xen-devel-bounces@lists.xenproject.org Sender: "Xen-devel" SXQgaXMgd2FzdGVmdWwgdG8gcmVxdWlyZSBzZXBhcmF0ZSBoeXBlcmNhbGxzIHRvIGVuYWJsZSBz aGFyaW5nIG9uIGJvdGggdGhlCnBhcmVudCBhbmQgdGhlIGNsaWVudCBkb21haW4gZHVyaW5nIFZN IGZvcmtpbmcuIFRvIHNwZWVkIHRoaW5ncyB1cCB3ZSBlbmFibGUKc2hhcmluZyBvbiB0aGUgZmly c3QgbWVtb3AgaW4gY2FzZSBpdCB3YXNuJ3QgYWxyZWFkeSBlbmFibGVkLgoKU2lnbmVkLW9mZi1i eTogVGFtYXMgSyBMZW5neWVsIDx0YW1hcy5sZW5neWVsQGludGVsLmNvbT4KLS0tCiB4ZW4vYXJj aC94ODYvbW0vbWVtX3NoYXJpbmcuYyB8IDM2ICsrKysrKysrKysrKysrKysrKysrKy0tLS0tLS0t LS0tLS0tCiAxIGZpbGUgY2hhbmdlZCwgMjIgaW5zZXJ0aW9ucygrKSwgMTQgZGVsZXRpb25zKC0p CgpkaWZmIC0tZ2l0IGEveGVuL2FyY2gveDg2L21tL21lbV9zaGFyaW5nLmMgYi94ZW4vYXJjaC94 ODYvbW0vbWVtX3NoYXJpbmcuYwppbmRleCAzZjM2Y2Q2YmJjLi5iOGE5MjI4ZWNmIDEwMDY0NAot LS0gYS94ZW4vYXJjaC94ODYvbW0vbWVtX3NoYXJpbmcuYworKysgYi94ZW4vYXJjaC94ODYvbW0v bWVtX3NoYXJpbmcuYwpAQCAtMTQxMiw2ICsxNDEyLDI0IEBAIHN0YXRpYyBpbnQgcmFuZ2Vfc2hh cmUoc3RydWN0IGRvbWFpbiAqZCwgc3RydWN0IGRvbWFpbiAqY2QsCiAgICAgcmV0dXJuIHJjOwog fQogCitzdGF0aWMgaW5saW5lIGludCBtZW1fc2hhcmluZ19jb250cm9sKHN0cnVjdCBkb21haW4g KmQsIGJvb2wgZW5hYmxlKQoreworICAgIGlmICggZW5hYmxlICkKKyAgICB7CisgICAgICAgIGlm ICggdW5saWtlbHkoIWlzX2h2bV9kb21haW4oZCkpICkKKyAgICAgICAgICAgIHJldHVybiAtRU5P U1lTOworCisgICAgICAgIGlmICggdW5saWtlbHkoIWhhcF9lbmFibGVkKGQpKSApCisgICAgICAg ICAgICByZXR1cm4gLUVOT0RFVjsKKworICAgICAgICBpZiAoIHVubGlrZWx5KGlzX2lvbW11X2Vu YWJsZWQoZCkpICkKKyAgICAgICAgICAgIHJldHVybiAtRVhERVY7CisgICAgfQorCisgICAgZC0+ YXJjaC5odm0ubWVtX3NoYXJpbmcuZW5hYmxlZCA9IGVuYWJsZTsKKyAgICByZXR1cm4gMDsKK30K KwogaW50IG1lbV9zaGFyaW5nX21lbW9wKFhFTl9HVUVTVF9IQU5ETEVfUEFSQU0oeGVuX21lbV9z aGFyaW5nX29wX3QpIGFyZykKIHsKICAgICBpbnQgcmM7CkBAIC0xNDMzLDEwICsxNDUxLDggQEAg aW50IG1lbV9zaGFyaW5nX21lbW9wKFhFTl9HVUVTVF9IQU5ETEVfUEFSQU0oeGVuX21lbV9zaGFy aW5nX29wX3QpIGFyZykKICAgICBpZiAoIHJjICkKICAgICAgICAgZ290byBvdXQ7CiAKLSAgICAv KiBPbmx5IEhBUCBpcyBzdXBwb3J0ZWQgKi8KLSAgICByYyA9IC1FTk9ERVY7Ci0gICAgaWYgKCAh bWVtX3NoYXJpbmdfZW5hYmxlZChkKSApCi0gICAgICAgIGdvdG8gb3V0OworICAgIGlmICggIW1l bV9zaGFyaW5nX2VuYWJsZWQoZCkgJiYgKHJjID0gbWVtX3NoYXJpbmdfY29udHJvbChkLCB0cnVl KSkgKQorICAgICAgICByZXR1cm4gcmM7CiAKICAgICBzd2l0Y2ggKCBtc28ub3AgKQogICAgIHsK QEAgLTE3MDMsMTggKzE3MTksMTAgQEAgaW50IG1lbV9zaGFyaW5nX2RvbWN0bChzdHJ1Y3QgZG9t YWluICpkLCBzdHJ1Y3QgeGVuX2RvbWN0bF9tZW1fc2hhcmluZ19vcCAqbWVjKQogewogICAgIGlu dCByYzsKIAotICAgIC8qIE9ubHkgSEFQIGlzIHN1cHBvcnRlZCAqLwotICAgIGlmICggIWhhcF9l bmFibGVkKGQpICkKLSAgICAgICAgcmV0dXJuIC1FTk9ERVY7Ci0KLSAgICBzd2l0Y2ggKCBtZWMt Pm9wICkKKyAgICBzd2l0Y2goIG1lYy0+b3AgKQogICAgIHsKICAgICBjYXNlIFhFTl9ET01DVExf TUVNX1NIQVJJTkdfQ09OVFJPTDoKLSAgICAgICAgcmMgPSAwOwotICAgICAgICBpZiAoIHVubGlr ZWx5KGlzX2lvbW11X2VuYWJsZWQoZCkgJiYgbWVjLT51LmVuYWJsZSkgKQotICAgICAgICAgICAg cmMgPSAtRVhERVY7Ci0gICAgICAgIGVsc2UKLSAgICAgICAgICAgIGQtPmFyY2guaHZtLm1lbV9z aGFyaW5nX2VuYWJsZWQgPSBtZWMtPnUuZW5hYmxlOworICAgICAgICByYyA9IG1lbV9zaGFyaW5n X2NvbnRyb2woZCwgbWVjLT51LmVuYWJsZSk7CiAgICAgICAgIGJyZWFrOwogCiAgICAgZGVmYXVs dDoKLS0gCjIuMjAuMQoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbnByb2plY3Qu b3JnCmh0dHBzOi8vbGlzdHMueGVucHJvamVjdC5vcmcvbWFpbG1hbi9saXN0aW5mby94ZW4tZGV2 ZWw=