From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: [PATCH RFC 0/8] Memory scrubbing from idle loop Date: Sun, 26 Feb 2017 19:22:32 -0500 Message-ID: <1488154960-2826-1-git-send-email-boris.ostrovsky@oracle.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 Cc: sstabellini@kernel.org, wei.liu2@citrix.com, George.Dunlap@eu.citrix.com, andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com, jbeulich@suse.com, tim@xen.orgc, Boris Ostrovsky List-Id: xen-devel@lists.xenproject.org V2hlbiBhIGRvbWFpbiBpcyBkZXN0cm95ZWQgdGhlIGh5cGVydmlzb3IgbXVzdCBzY3J1YiBkb21h aW4ncyBwYWdlcyBiZWZvcmUKZ2l2aW5nIHRoZW0gdG8gYW5vdGhlciBndWVzdCBpbiBvcmRlciB0 byBwcmV2ZW50IGxlYWtpbmcgdGhlIGRlY2Vhc2VkCmd1ZXN0J3MgZGF0YS4gQ3VycmVudGx5IHRo aXMgaXMgZG9uZSBkdXJpbmcgZ3Vlc3QncyBkZXN0cnVjdGlvbiwgcG9zc2libHkKY2F1c2luZyB2 ZXJ5IGxlbmd0aHkgY2xlYW51cCBwcm9jZXNzLgoKVGhpcyBzZXJpZXMgYWRkcyBzdXBwb3J0IGZv ciBzY3J1YmJpbmcgcmVsZWFzZWQgcGFnZXMgZnJvbSBpZGxlIGxvb3AsCm1ha2luZyBndWVzdCBk ZXN0cnVjdGlvbiBzaWduaWZpY2FudGx5IGZhc3Rlci4gRm9yIGV4YW1wbGUsIGRlc3Ryb3lpbmcg YQoxVEIgZ3Vlc3QgY2FuIG5vdyBiZSBjb21wbGV0ZWQgaW4gc2xpZ2h0bHkgb3ZlciAxIG1pbnV0 ZSBhcyBvcHBvc2VkIHRvCmFib3V0IDkgbWludXRlcyB1c2luZyBleGlzdGluZyBzY3J1YmJpbmcg YWxnb3JpdGhtLgoKVGhlIGRvd25zaWRlIG9mIHRoaXMgc2VyaWVzIGlzIHRoYXQgd2Ugc29tZXRp bWVzIGZhaWwgdG8gYWxsb2NhdGUgaGlnaC1vcmRlcgpzZXRzIG9mIHBhZ2VzIHNpbmNlIGRpcnR5 IHBhZ2VzIG1heSBub3QgeWV0IGJlIG1lcmdlZCBpbnRvIGhpZ2hlci1vcmRlciBzZXRzCndoaWxl IHRoZXkgYXJlIHdhaXRpbmcgdG8gYmUgc2NydWJiZWQuCgpCcmllZmx5LCB0aGUgbmV3IGFsZ29y aXRobSBwbGFjZXMgZGlydHkgcGFnZXMgYXQgdGhlIGVuZCBvZiBoZWFwJ3MgcGFnZSBsaXN0CmZv ciBlYWNoIG5vZGUvem9uZS9vcmRlciB0byBhdm9pZCBoYXZpbmcgdG8gc2NhbiBmdWxsIGxpc3Qg d2hpbGUgc2VhcmNoaW5nCmZvciBkaXJ0eSBwYWdlcy4gT25lIHByb2Nlc3NvciBmb3JtIGVhY2gg bm9kZSBjaGVja3Mgd2hldGhlciB0aGUgbm9kZSBoYXMgYW55CmRpcnR5IHBhZ2VzIGFuZCwgaWYg c3VjaCBwYWdlcyBhcmUgZm91bmQsIHNjcnVicyB0aGVtLiBTY3J1YmJpbmcgaXRzZWxmCmhhcHBl bnMgd2l0aG91dCBob2xkaW5nIGhlYXAgbG9jayBzbyBvdGhlciB1c2VycyBtYXkgYWNjZXNzIGhl YXAgaW4gdGhlCm1lYW50aW1lLiBJZiB3aGlsZSBpZGxlIGxvb3AgaXMgc2NydWJiaW5nIGEgcGFy dGljdWxhciBjaHVuayBvZiBwYWdlcyB0aGlzCmNodW5rIGlzIHJlcXVlc3RlZCBieSB0aGUgaGVh cCBhbGxvY2F0b3IsIHNjcnViYmluZyBpcyBpbW1lZGlhdGVseSBzdG9wcGVkLgoKT24gdGhlIGFs bG9jYXRpb24gc2lkZSwgYWxsb2NfaGVhcF9wYWdlcygpIGZpcnN0IHRyaWVzIHRvIHNhdGlzZnkg YWxsb2NhdGlvbgpyZXF1ZXN0IHVzaW5nIG9ubHkgY2xlYW4gcGFnZXMuIElmIHRoaXMgaXMgbm90 IHBvc3NpYmxlLCB0aGUgc2VhcmNoIGlzCnJlcGVhdGVkIGFuZCBkaXJ0eSBwYWdlcyBhcmUgc2Ny dWJiZWQgYnkgdGhlIGFsbG9jYXRvci4KClRoaXMgc2VyaWVzIG5lZWRzIHRvIGJlIGZpeGVkIHVw IGZvciBBUk0gYW5kIG1heSBoYXZlIGEgZmV3IG9wdGltaXphdGlvbnMKYWRkZWQgKGFuZCBwb3Nz aWJseSBzb21lIGNsZWFudXApLiBJIGFsc28gbmVlZCB0byBkZWNpZGUgd2hhdCB0byBkbyBhYm91 dApub2RlcyB3aXRob3V0IHByb2Nlc3NvcnMuCgpJIG9yaWdpbmFsbHkgaW50ZW5kZWQgdG8gYWRk IHBlci1ub2RlIGhlYXAgbG9ja3MgYW5kIEFWWC1iYXNlZCBzY3J1YmJpbmcgYnV0CmRlY2lkZWQg dGhhdCB0aGlzIHNob3VsZCBiZSBkb25lIHNlcGFyYXRlbHkuCgpUaGlzIHNlcmllcyBpcyBzb21l d2hhdCBiYXNlZCBvbiBlYXJsaWVyIHdvcmsgYnkgQm9iIExpdS4KCkJvcmlzIE9zdHJvdnNreSAo OCk6CiAgbW06IFNlcGFyYXRlIGZyZWUgcGFnZSBjaHVuayBtZXJnaW5nIGludG8gaXRzIG93biBy b3V0aW5lCiAgbW06IFBsYWNlIHVuc2NydWJiZWQgcGFnZXMgYXQgdGhlIGVuZCBvZiBwYWdlbGlz dAogIG1tOiBTY3J1YiBwYWdlcyBpbiBhbGxvY19oZWFwX3BhZ2VzKCkgaWYgbmVlZGVkCiAgbW06 IFNjcnViIG1lbW9yeSBmcm9tIGlkbGUgbG9vcAogIG1tOiBEbyBub3QgZGlzY2FyZCBhbHJlYWR5 LXNjcnViYmVkIHBhZ2VzIHNvZnRpcnFzIGFyZSBwZW5kaW5nCiAgc3BpbmxvY2s6IEludHJvZHVj ZSBfc3Bpbl9sb2NrX2NvbmQoKQogIG1tOiBLZWVwIHBhZ2VzIGF2YWlsYWJsZSBmb3IgYWxsb2Nh dGlvbiB3aGlsZSBzY3J1YmJpbmcKICBtbTogUHJpbnQgbnVtYmVyIG9mIHVuc2NydWJiZWQgcGFn ZXMgaW4gJ0gnIGRlYnVnIGhhbmRsZXIKCiB4ZW4vYXJjaC94ODYvZG9tYWluLmMgICAgICB8ICAg IDMgKy0KIHhlbi9jb21tb24vcGFnZV9hbGxvYy5jICAgIHwgIDM3MyArKysrKysrKysrKysrKysr KysrKysrKysrKysrKysrKysrKystLS0tLS0tLQogeGVuL2NvbW1vbi9zcGlubG9jay5jICAgICAg fCAgIDI1ICsrKwogeGVuL2luY2x1ZGUvYXNtLXg4Ni9tbS5oICAgfCAgICA4ICsKIHhlbi9pbmNs dWRlL3hlbi9tbS5oICAgICAgIHwgICAgMSArCiB4ZW4vaW5jbHVkZS94ZW4vc3BpbmxvY2suaCB8 ICAgIDMgKwogNiBmaWxlcyBjaGFuZ2VkLCAzNDQgaW5zZXJ0aW9ucygrKSwgNjkgZGVsZXRpb25z KC0pCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18KWGVu LWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpodHRwczovL2xpc3Rz Lnhlbi5vcmcveGVuLWRldmVsCg==