From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: Question about sharing spinlock_t among VMs in Xen Date: Mon, 13 Jun 2016 17:17:12 -0400 Message-ID: <575F22D8.2010107@oracle.com> References: <575EFB59.1000202@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1bCZEW-0002tM-Qa for xen-devel@lists.xenproject.org; Mon, 13 Jun 2016 21:17:20 +0000 In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Meng Xu Cc: "xen-devel@lists.xenproject.org" List-Id: xen-devel@lists.xenproject.org T24gMDYvMTMvMjAxNiAwNDo0NiBQTSwgTWVuZyBYdSB3cm90ZToKPiBPbiBNb24sIEp1biAxMywg MjAxNiBhdCAyOjI4IFBNLCBCb3JpcyBPc3Ryb3Zza3kKPiA8Ym9yaXMub3N0cm92c2t5QG9yYWNs ZS5jb20+IHdyb3RlOgo+PiBPbiAwNi8xMy8yMDE2IDAxOjQzIFBNLCBNZW5nIFh1IHdyb3RlOgo+ Pj4gSGksCj4+Pgo+Pj4gSSBoYXZlIGEgcXVpY2sgcXVlc3Rpb24gYWJvdXQgdXNpbmcgdGhlIExp bnV4IHNwaW5fbG9jaygpIGluIFhlbgo+Pj4gZW52aXJvbm1lbnQgdG8gcHJvdGVjdCBzb21lIGhv c3Qtd2lkZSBzaGFyZWQgKG1lbW9yeSkgcmVzb3VyY2UgYW1vbmcKPj4+IFZNcy4KPj4+Cj4+PiAq KiogVGhlIHF1ZXN0aW9uIGlzIGFzIGZvbGxvd3MgKioqCj4+PiBTdXBwb3NlIEkgaGF2ZSB0d28g TGludXggVk1zIHNoYXJpbmcgdGhlIHNhbWUgc3BpbmxvY2tfdCBsb2NrICh0aHJvdWdoCj4+PiB0 aGUgc2hhcmluZyBtZW1vcnkpIG9uIHRoZSBzYW1lIGhvc3QuIFN1cHBvc2Ugd2UgaGF2ZSBvbmUg cHJvY2VzcyBpbgo+Pj4gZWFjaCBWTS4gRWFjaCBwcm9jZXNzIHVzZXMgdGhlIGxpbnV4IGZ1bmN0 aW9uIHNwaW5fbG9jaygmbG9jaykgWzFdIHRvCj4+PiBncmFiICYgcmVsZWFzZSB0aGUgbG9jay4K Pj4+IFdpbGwgdGhlc2UgdHdvIHByb2Nlc3NlcyBpbiB0aGUgdHdvIFZNcyBoYXZlIHJhY2Ugb24g dGhlIHNoYXJlZCBsb2NrPwo+PiBZb3UgY2FuJ3QgZG8gdGhpczogZGVwZW5kaW5nIG9uIHdoaWNo IExpbnV4IHZlcnNpb24geW91IHVzZSB5b3Ugd2lsbAo+PiBmaW5kIHRoYXQga2VybmVsIHVzZXMg dGlja2V0bG9ja3Mgb3IgcWxvY2tzIGxvY2tzIHdoaWNoIGtlZXAgdHJhY2sgb2YKPj4gd2hvIGlz IGhvbGRpbmcgdGhlIGxvY2sgKG9idmlvdXNseSB0aGlzIGluZm9ybWF0aW9uIGlzIGludGVybmFs IHRvIFZNKS4KPiBZZXMsIHdlIGFyZSB1c2luZyB0aGUgdGlja2V0bG9ja3MuIFdlIGV4cG9zZSB0 aGlzIGluZm9ybWF0aW9uIHRvIG90aGVyCj4gVk1zIGFzIHdlbGwuIFRoYXQncyB3aHkgSSdtIGd1 ZXNzaW5nIHNvbWUgZGF0YSBjYW4gYmUgY29ycnVwdGVkIGR1ZSB0bwo+IHJhY2VzIGFtb25nIFZN cyB0aGF0IHNoYXJlIHRoZSBzYW1lIHRpY2tldGxvY2sgaW5mb3JtYXRpb24uCgpJIGRvbid0IHRo aW5rIGl0J3MgYSByYWNlIHRoYXQgaXMgdGhlIHByb2JsZW0uIEl0J3MgdGhhdCB3aGVuIGhvbGRl cgpyZWxlYXNlcyBhIGxvY2sgaXQgd2FudHMgdG8ga2ljayB0aGUgd2FpdGVyLiBJdCBjYW4ndCBr aWNrIENQVSBpbgphbm90aGVyIGd1ZXN0IGFuZCBtb3N0IGxpa2VseSBraWNrcyBDUFUgZnJvbSBp dHMgb3duIGd1ZXN0IChiZWNhdXNlCnRoYXQncyB3aGVyZSBpdCBhc3N1bWVzIHRoZSB3YWl0ZXIg aXMpLgoKCi1ib3JpcwoKCgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fXwpYZW4tZGV2ZWwgbWFpbGluZyBsaXN0Clhlbi1kZXZlbEBsaXN0cy54ZW4ub3JnCmh0 dHA6Ly9saXN0cy54ZW4ub3JnL3hlbi1kZXZlbAo=