From mboxrd@z Thu Jan 1 00:00:00 1970 From: Razvan Cojocaru Subject: Re: [PATCH RFC] x86/emulate: implement hvmemul_cmpxchg() with an actual CMPXCHG Date: Tue, 28 Mar 2017 13:27:09 +0300 Message-ID: <925827a5-b346-1733-3c0a-64eaa7b3e251@bitdefender.com> References: <1490361899-18303-1-git-send-email-rcojocaru@bitdefender.com> <58DA510A0200007800148F6F@prv-mh.provo.novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: <58DA510A0200007800148F6F@prv-mh.provo.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Jan Beulich Cc: andrew.cooper3@citrix.com, paul.durrant@citrix.com, xen-devel@lists.xen.org List-Id: xen-devel@lists.xenproject.org T24gMDMvMjgvMjAxNyAwMTowMyBQTSwgSmFuIEJldWxpY2ggd3JvdGU6Cj4+Pj4gT24gMjguMDMu MTcgYXQgMTE6MTQsIDxyY29qb2NhcnVAYml0ZGVmZW5kZXIuY29tPiB3cm90ZToKPj4gSSdtIG5v dCBzdXJlIHRoYXQgdGhlIFJFVFJZIG1vZGVsIGlzIHdoYXQgdGhlIGd1ZXN0IE9TIGV4cGVjdHMu IEFGQUlLLCBhCj4+IGZhaWxlZCBDTVBYQ0hHIHNob3VsZCBoYXBwZW4ganVzdCBvbmNlLCB3aXRo IHRoZSBwcm9wZXIgcmVnaXN0ZXJzIGFuZCBaRgo+PiBzZXQuIFRoZSBndWVzdCBzdXJlbHkgZXhw ZWN0cyBuZWl0aGVyIHRoYXQgdGhlIGluc3RydWN0aW9uIHJlc3VtZSB1bnRpbAo+PiBpdCBzdWNj ZWVkcywgbm9yIHRoYXQgc29tZSBoaWRkZW4gbG9vcCBnb2VzIG9uIGZvciBhbiB1bmRldGVybWlu YXRlCj4+IGFtbW91bnQgb2YgdGltZSB1bnRpbCBhIENNUFhDSEcgc3VjY2VlZHMuCj4gCj4gVGhl IGd1ZXN0IGRvZXNuJ3Qgb2JzZXJ2ZSB0aGUgQ01QWENIRyBmYWlsaW5nIC0gUkVUUlkgbGVhZHMg dG8KPiB0aGUgaW5zdHJ1Y3Rpb24gYmVpbmcgcmVzdGFydGVkIGluc3RlYWQgb2YgY29tcGxldGVk LgoKSW5kZWVkLCBidXQgaXQgd29ya3MgZGlmZmVyZW50bHkgd2l0aCBodm1fZW11bGF0ZV9vbmVf dm1fZXZlbnQoKSB3aGVyZQpSRVRSWSBjdXJyZW50bHkgd291bGQgaGF2ZSB0aGUgaW5zdHJ1Y3Rp b24gYmUgcmUtZXhlY3V0ZWQgKHByb3Blcmx5CnJlLWV4ZWN1dGVkLCBub3QganVzdCByZS1lbXVs YXRlZCkgYnkgdGhlIGd1ZXN0LgoKPiBUaGVyZSBpcyBhIHNldmVyZSBkb3duc2lkZSB0byBNTUlP IGFjY2Vzc2VzIHdpdGggdGhpcyBtb2RlbAo+IHRob3VnaDogT3RoZXIgdGhhbiBmb3IgUkFNLCB3 ZSBzaG91bGRuJ3QgYmUgcmVhZGluZyAoYW5kIGV2ZW4KPiBsZXNzIHNvIHdyaXRpbmcpIHRoZSBt ZW1vcnkgbG9jYXRpb24gbW9yZSB0aGFuIG9uY2UuCj4gCj4+IFRoZSBwaWN0dXJlIGlzIGZ1cnRo ZXIgY29tcGxpY2F0ZWQgYnkgdGhlIHR3by1wYXJ0IGhhbmRsaW5nIG9mCj4+IGluc3RydWN0aW9u cyBpbiB4ODZfZW11bGF0ZSgpLiBGb3IgZXhhbXBsZSwgZm9yIENNUFhDSEcgd2UgaGF2ZToKPj4g Wy4uLl0KPj4gSSBub3cgc2VlIHRoYXQgdGhpcyBpcyB3aHkgdXNpbmcgYSBzcGlubG9jayBvbmx5 IGFyb3VuZCB0aGUgd3JpdGViYWNrCj4+IHBhcnQgZGlkIG5vdCBzb2x2ZSB0aGUgaXNzdWU6IGJv dGggdGhlIGNvbXBhcmUgcGFydCBhbmQgdGhlIHdyaXRlYmFjawo+PiBwYXJ0IG5lZWQgdG8gYmUg cGFydCBvZiB0aGUgc2FtZSBhdG9taWMgb3BlcmF0aW9uIC0gbG9jayBuZWVkcyB0byBiZQo+PiBh cXVpcmVkIGJlZm9yZSB0aGUgY21wIC8gWkYgcGFydC4KPiAKPiBObyBleGFjdGx5OiBSTVcgaW5z bnMgcmVxdWlyZSB0aGUgbG9jayB0byBiZSBhY3F1aXJlZCBhaGVhZCBvZgo+IHRoZSBtZW1vcnkg cmVhZCwgYW5kIGRyb3BwZWQgYWZ0ZXIgdGhlIG1lbW9yeSB3cml0ZS4KCkluZGVlZCwgdGhhdCdz IHdoYXQgSSBtZWFudC4gSSBzaG91bGQgaGF2ZSBiZWVuIG1vcmUgcHJlY2lzZS4KCj4+IE9waW5p b25zIGFuZCBzdWdnZXN0aW9ucyBhcmUgYXBwcmVjaWF0ZWQuIElmIEknbSBub3QgbWlzdGFrZW4s IGl0IGxvb2tzCj4+IGxpa2UgdGhlIHNtcF9sb2NrIGRlc2lnbiBpcyB0aGUgYmV0dGVyIHNvbHV0 aW9uIHRvIHRoZSBwcm9ibGVtLgo+IAo+IEFuZHJldyBoYXMgdG9sZCBtZSB0aGF0IHRoZSByZS13 b3JrIG9mIGhvdyB3ZSBkbyBtZW1vcnkgYWNjZXNzZXMKPiBpbiB0aGUgZW11bGF0b3IgaXMgcHJl dHR5IGhpZ2ggb24gaGlzIHByaW9yaXR5IGxpc3Qgbm93LiBXaGV0aGVyIHdlJ2QKPiB3YW50IHRv IGludHJvZHVjZSBhbiBpbnRlcmltIHNvbHV0aW9uIHRoZXJlZm9yZSBkZXBlbmRzIG9uIHRoZSB0 aW1lCj4gc2NhbGUgdG8gcG9zc2libHkgcmVhY2ggdGhlIG9ubHkgdWx0aW1hdGVseSBjb3JyZWN0 IHNvbHV0aW9uIChubyBsb25nZXIKPiBhY3Rpbmcgb24gaW50ZXJtZWRpYXRlIGNvcGllcyBvZiB0 aGUgZGF0YSBjb21pbmcgZnJvbSBndWVzdCBtZW1vcnksCj4gd2hpY2ggaXMgb25seSBjb3JyZWN0 IGZvciBwbGFpbiByZWFkcyBhbmQgcGxhaW4gd3JpdGVzKS4KCkdyZWF0ISBJIHVuZGVyc3RhbmQs IEknbGwgc3dpdGNoIHRvIHRoZSBzbXBfbG9jaygpIHBhdGNoIGFzIHNvb24gYXMgdGhlCnNjaGVk dWxlIGFsbG93cywgYW5kIHdlJ2xsIHNlZSBob3cgdGhhdCBmaXRzIGludG8gdGhlIHRpbWVmcmFt ZS4KCgpUaGFua3MsClJhenZhbgoKCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVu Lm9yZwpodHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==