From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: [PATCH v4 3/3] x86/ioreq server: Add HVMOP to map guest ram with p2m_ioreq_server to an ioreq server. Date: Wed, 15 Jun 2016 10:50:09 +0100 Message-ID: <576124D1.1030503@citrix.com> References: <1463648711-26595-1-git-send-email-yu.c.zhang@linux.intel.com> <1463648711-26595-4-git-send-email-yu.c.zhang@linux.intel.com> <575FFC7E02000078000F4BA1@prv-mh.provo.novell.com> <576002FF.3030008@citrix.com> <5760234202000078000F4D38@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: <5760234202000078000F4D38@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: Kevin Tian , George Dunlap , Andrew Cooper , Tim Deegan , xen-devel@lists.xen.org, Paul Durrant , Yu Zhang , zhiyuan.lv@intel.com, JunNakajima List-Id: xen-devel@lists.xenproject.org T24gMTQvMDYvMTYgMTQ6MzEsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+IE9uIDE0LjA2LjE2IGF0 IDE1OjEzLCA8Z2VvcmdlLmR1bmxhcEBjaXRyaXguY29tPiB3cm90ZToKPj4gT24gMTQvMDYvMTYg MTE6NDUsIEphbiBCZXVsaWNoIHdyb3RlOgo+Pj4+ICsgICAgICAgICAgICAgICAgICAgICAgICAg c3RydWN0IGh2bV9pb3JlcV9zZXJ2ZXIgKnMpCj4+Pj4gK3sKPj4+PiArICAgIHN0cnVjdCBwMm1f ZG9tYWluICpwMm0gPSBwMm1fZ2V0X2hvc3RwMm0oZCk7Cj4+Pj4gKyAgICBpbnQgcmM7Cj4+Pj4g Kwo+Pj4+ICsgICAgc3Bpbl9sb2NrKCZwMm0tPmlvcmVxLmxvY2spOwo+Pj4+ICsKPj4+PiArICAg IGlmICggZmxhZ3MgPT0gMCApCj4+Pj4gKyAgICB7Cj4+Pj4gKyAgICAgICAgcmMgPSAtRUlOVkFM Owo+Pj4+ICsgICAgICAgIGlmICggcDJtLT5pb3JlcS5zZXJ2ZXIgIT0gcyApCj4+Pj4gKyAgICAg ICAgICAgIGdvdG8gb3V0Owo+Pj4+ICsKPj4+PiArICAgICAgICAvKiBVbm1hcCBpb3JlcSBzZXJ2 ZXIgZnJvbSBwMm0gdHlwZSBieSBwYXNzaW5nIGZsYWdzIHdpdGggMC4gKi8KPj4+PiArICAgICAg ICBwMm0tPmlvcmVxLnNlcnZlciA9IE5VTEw7Cj4+Pj4gKyAgICAgICAgcDJtLT5pb3JlcS5mbGFn cyA9IDA7Cj4+Pj4gKyAgICB9Cj4+Pgo+Pj4gV2hhdCBkb2VzICJwYXNzaW5nIiByZWZlciB0byBp biB0aGUgY29tbWVudD8KPj4KPj4gWW91IG1ha2UgdGhlIG1hcF9tZW10eXBlXy4uLiBoeXBlcmNh bGwgd2l0aCAiZmxhZ3MiIHNldCB0byAwLiAgSSdtIG5vdAo+PiBzdXJlIHdoYXQncyB1bmNsZWFy IGFib3V0IHRoZSBzZW50ZW5jZTsgaG93IHdvdWxkIHlvdSBwdXQgaXQgZGlmZmVyZW50bHk/Cj4g Cj4gSSdkIHVzZSAiZmx1c2hpbmciLCBvciBpbmRlZWQgYW55dGhpbmcgdGhhdCBkb2Vzbid0IHJl c2VtYmxlIHdvcmRpbmcKPiB1c2VkIHRvIGRlc2NyaWJlIGhvdyBhcmd1bWVudHMgZ2V0IGhhbmRl ZCB0byBmdW5jdGlvbnMuCj4gCj4+PiBMb2NraW5nIGlzIHNvbWV3aGF0IHN0cmFuZ2UgaGVyZTog WW91IHByb3RlY3QgYWdhaW5zdCB0aGUgInNldCIKPj4+IGNvdW50ZXJwYXJ0IGFsdGVyaW5nIHN0 YXRlIHdoaWxlIHlvdSByZXRyaWV2ZSBpdCwgYnV0IHlvdSBkb24ndAo+Pj4gcHJvdGVjdCBhZ2Fp bnN0IHRoZSByZXR1cm5lZCBkYXRhIGJlY29taW5nIHN0YWxlIGJ5IHRoZSB0aW1lCj4+PiB0aGUg Y2FsbGVyIGNhbiBjb25zdW1lIGl0LiBJcyB0aGF0IG5vdCBhIHByb2JsZW0/IChUaGUgbW9zdAo+ Pj4gY29uY2VybmluZyBjYXNlIHdvdWxkIHNlZW0gdG8gYmUgYSByYWNlIG9mIGh2bW9wX3NldF9t ZW1fdHlwZSgpCj4+PiB3aXRoIGRlLXJlZ2lzdHJhdGlvbiBvZiB0aGUgdHlwZS4pCj4+Cj4+IEhv dyBpcyB0aGF0IGRpZmZlcmVudCB0aGFuIGNhbGxpbmcgc2V0X21lbV90eXBlKCkgZmlyc3QsIGFu ZCB0aGVuCj4+IGRlLXJlZ2lzdGVyaW5nIHdpdGhvdXQgZmlyc3QgdW5tYXBwaW5nIGFsbCB0aGUg dHlwZXM/Cj4gCj4gRGlkbid0IHdlIGFsbCBhZ3JlZSB0aGlzIGlzIHNvbWV0aGluZyB0aGF0IHNo b3VsZCBiZSBkaXNhbGxvd2VkCj4gYW55d2F5IChub3QgdGhhdCBJJ3ZlIHNlZW4gdGhpcyBpbXBs ZW1lbnRlZCwgaS5lLiBqdXN0IGJlaW5nCj4gcmVtaW5kZWQgb2YgaXQgYnkgeW91ciByZXBseSk/ CgpJIHRoaW5rIEkgc3VnZ2VzdGVkIGl0IGFzIGEgZ29vZCBpZGVhLCBidXQgUGF1bCBhbmQgWWFu ZyBib3RoIHRob3VnaHQgaXQKd2Fzbid0IG5lY2Vzc2FyeS4gIERvIHlvdSB0aGluayBpdCBzaG91 bGQgYmUgYSByZXF1aXJlbWVudD8KCldlIGNvdWxkIGhhdmUgdGhlIGRlLXJlZ2lzdGVyaW5nIG9w ZXJhdGlvbiBmYWlsIGluIHRob3NlIGNpcmN1bXN0YW5jZXM7CmJ1dCBwcm9iYWJseSBhIG1vcmUg cm9idXN0IHRoaW5nIHRvIGRvIHdvdWxkIGJlIHRvIGhhdmUgWGVuIGdvIGNoYW5nZQphbGwgdGhl IGlvcmVxX3NlcnZlciBlbnRpcmVzIGJhY2sgdG8gcmFtX3J3IChzaW5jZSBpZiB0aGUgY2FsbGVy IGp1c3QKaWdub3JlcyB0aGUgZmFpbHVyZSwgdGhpbmdzIGFyZSBpbiBhbiBldmVuIHdvcnNlIHN0 YXRlKS4KCj4gCj4+Pj4gKyAgICB1aW50MzJfdCBmbGFnczsgICAgIC8qIElOIC0gdHlwZXMgb2Yg YWNjZXNzZXMgdG8gYmUgZm9yd2FyZGVkIHRvIHRoZQo+Pj4+ICsgICAgICAgICAgICAgICAgICAg ICAgICAgICBpb3JlcSBzZXJ2ZXIuIGZsYWdzIHdpdGggMCBtZWFucyB0byB1bm1hcCB0aGUKPj4+ PiArICAgICAgICAgICAgICAgICAgICAgICAgICAgaW9yZXEgc2VydmVyICovCj4+Pj4gKyNkZWZp bmUgX0hWTU9QX0lPUkVRX01FTV9BQ0NFU1NfUkVBRCAwCj4+Pj4gKyNkZWZpbmUgSFZNT1BfSU9S RVFfTUVNX0FDQ0VTU19SRUFEIFwKPj4+PiArICAgICgxdSA8PCBfSFZNT1BfSU9SRVFfTUVNX0FD Q0VTU19SRUFEKQo+Pj4+ICsKPj4+PiArI2RlZmluZSBfSFZNT1BfSU9SRVFfTUVNX0FDQ0VTU19X UklURSAxCj4+Pj4gKyNkZWZpbmUgSFZNT1BfSU9SRVFfTUVNX0FDQ0VTU19XUklURSBcCj4+Pj4g KyAgICAoMXUgPDwgX0hWTU9QX0lPUkVRX01FTV9BQ0NFU1NfV1JJVEUpCj4+Pgo+Pj4gSXMgdGhl cmUgYW55IHVzZSBmb3IgdGhlc2UgX0hWTU9QXyogdmFsdWVzPyBUaGUgbW9yZSB0aGF0IHRoZXkK Pj4+IHZpb2xhdGUgc3RhbmRhcmQgQyBuYW1lIHNwYWNlIHJ1bGVzPwo+Pgo+PiBJIGFzc3VtZSBo ZSdzIGp1c3QgZ29pbmcgYWxvbmcgd2l0aCB3aGF0IGhlIHNlZXMgaW4gcGFyYW1zLmguCj4+ICJW aW9sYXRpbmcgc3RhbmRhcmQgQyBuYW1lIHNwYWNlIHJ1bGVzIiBieSBoYXZpbmcgI2RlZmluZXMg d2hpY2ggc3RhcnQKPj4gd2l0aCBhIHNpbmdsZSBfIHNlZW1zIHRvIGJlIGEgd2VsbC1lc3RhYmxp c2hlZCBwb2xpY3kgZm9yIFhlbi4gOi0pCj4gCj4gU2FkbHksIGFuZCBJJ20gdHJ5aW5nIHRvIHBy ZXZlbnQgbWF0dGVycyBiZWNvbWluZyB3b3JzZS4KPiBTcGVha2luZyBvZiB3aGljaCAtIHRoZXJl IGFyZSBYRU5fIHByZWZpeGVzIG1pc3NpbmcgaGVyZSB0b28uCgpSaWdodCwgc28gaW4gdGhhdCBj YXNlIEkgdGhpbmsgSSB3b3VsZCBoYXZlIHNhaWQsICJJIHJlYWxpemUgdGhhdCBsb3RzCm9mIG90 aGVyIHBsYWNlcyBpbiB0aGUgWGVuIGludGVyZmFjZSB1c2UgdGhpcyBzb3J0IG9mIHRlbXBsYXRl IGZvcgpmbGFncywgYnV0IEkgdGhpbmsgaXQncyBhIGJhZCBpZGVhIGFuZCBJJ20gdHJ5aW5nIHRv IHN0b3AgaXQgZXhwYW5kaW5nLgogSXMgdGhlcmUgYW55IGFjdHVhbCBuZWVkIHRvIGhhdmUgdGhl IGJpdCBudW1iZXJzIGRlZmluZWQgc2VwYXJhdGVseT8KSWYgbm90LCBwbGVhc2UganVzdCBkZWZp bmUgZWFjaCBmbGFnIGFzICgxdSA8PCAwKSwgJmMuIgoKSSB0aGluayB5b3UndmUgdHJpcHBlZCBv dmVyICJjaGFuZ2luZyBjb2Rpbmcgc3R5bGVzIiBpbiB1bmZhbWlsaWFyIGNvZGUKYmVmb3JlIHRv bywgc28geW91IGtub3cgaG93IGZydXN0cmF0aW5nIGl0IGlzIHRvIHRyeSB0byBmb2xsb3cgdGhl CmV4aXN0aW5nIGNvZGluZyBzdHlsZSBvbmx5IHRvIGJlIHRvbGQgdGhhdCB5b3UgZGlkIGl0IHdy b25nLiA6LSkKCiAtR2VvcmdlCgoKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fClhlbi1kZXZlbCBtYWlsaW5nIGxpc3QKWGVuLWRldmVsQGxpc3RzLnhlbi5v cmcKaHR0cDovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==