From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Wiklander Subject: Re: [PATCH v13 2/5] tee: generic TEE subsystem Date: Thu, 19 Jan 2017 17:45:43 +0100 Message-ID: <20170119164541.GA22094@jax> References: <1479480700-554-1-git-send-email-jens.wiklander@linaro.org> <1479480700-554-3-git-send-email-jens.wiklander@linaro.org> <5825882.vZRDMrBMkW@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: Content-Disposition: inline In-Reply-To: <5825882.vZRDMrBMkW@wuerfel> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Arnd Bergmann Cc: valentin.manea@huawei.com, devicetree@vger.kernel.org, javier@javigon.com, emmanuel.michel@st.com, Greg Kroah-Hartman , Mark Rutland , Will Deacon , linux-kernel@vger.kernel.org, Wei Xu , Nishanth Menon , Jason Gunthorpe , Rob Herring , broonie@kernel.org, Al Viro , "Andrew F. Davis" , Olof Johansson , Andrew Morton , jean-michel.delorme@st.com, Michal Simek , linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org SGkgQXJuZCwKClRoaXMgaXMgdGhlIG9sZCB2MTMgcGF0Y2ggc2V0IHlvdSdyZSBjb21tZW50aW5n LCBidXQgaXQgZG9lc24ndCBtYXR0ZXIKaXQncyBlc3NlbnRpYWxseSBpZGVudGljYWwgdG8gdjE0 IGluIHRoaXMgcGF0Y2guCgpPbiBXZWQsIEphbiAxOCwgMjAxNyBhdCAwOToxOToyNVBNICswMTAw LCBBcm5kIEJlcmdtYW5uIHdyb3RlOgo+IE9uIEZyaWRheSwgTm92ZW1iZXIgMTgsIDIwMTYgMzo1 MTozNyBQTSBDRVQgSmVucyBXaWtsYW5kZXIgd3JvdGU6Cj4gPiBJbml0aWFsIHBhdGNoIGZvciBn ZW5lcmljIFRFRSBzdWJzeXN0ZW0uCj4gPiBUaGlzIHN1YnN5c3RlbSBwcm92aWRlczoKPiA+ICog UmVnaXN0cmF0aW9uL3VuLXJlZ2lzdHJhdGlvbiBvZiBURUUgZHJpdmVycy4KPiA+ICogU2hhcmVk IG1lbW9yeSBiZXR3ZWVuIG5vcm1hbCB3b3JsZCBhbmQgc2VjdXJlIHdvcmxkLgo+ID4gKiBJb2N0 bCBpbnRlcmZhY2UgZm9yIGludGVyYWN0aW9uIHdpdGggdXNlciBzcGFjZS4KPiA+ICogU3lzZnMg aW1wbGVtZW50YXRpb25faWQgb2YgVEVFIGRyaXZlcgo+ID4gCj4gPiBBIFRFRSAoVHJ1c3RlZCBF eGVjdXRpb24gRW52aXJvbm1lbnQpIGRyaXZlciBpcyBhIGRyaXZlciB0aGF0IGludGVyZmFjZXMK PiA+IHdpdGggYSB0cnVzdGVkIE9TIHJ1bm5pbmcgaW4gc29tZSBzZWN1cmUgZW52aXJvbm1lbnQs IGZvciBleGFtcGxlLAo+ID4gVHJ1c3Rab25lIG9uIEFSTSBjcHVzLCBvciBhIHNlcGFyYXRlIHNl Y3VyZSBjby1wcm9jZXNzb3IgZXRjLgo+ID4gCj4gPiBUaGUgVEVFIHN1YnN5c3RlbSBjYW4gc2Vy dmUgYSBURUUgZHJpdmVyIGZvciBhIEdsb2JhbCBQbGF0Zm9ybSBjb21wbGlhbnQKPiA+IFRFRSwg YnV0IGl0J3Mgbm90IGxpbWl0ZWQgdG8gb25seSBHbG9iYWwgUGxhdGZvcm0gVEVFcy4KPiA+IAo+ ID4gVGhpcyBwYXRjaCBidWlsZHMgb24gb3RoZXIgc2ltaWxhciBpbXBsZW1lbnRhdGlvbnMgdHJ5 aW5nIHRvIHNvbHZlCj4gPiB0aGUgc2FtZSBwcm9ibGVtOgo+ID4gKiAib3B0ZWVfbGludXhkcml2 ZXIiIGJ5IGFtb25nIG90aGVycwo+ID4gICBKZWFuLW1pY2hlbCBERUxPUk1FPGplYW4tbWljaGVs LmRlbG9ybWVAc3QuY29tPiBhbmQKPiA+ICAgRW1tYW51ZWwgTUlDSEVMIDxlbW1hbnVlbC5taWNo ZWxAc3QuY29tPgo+ID4gKiAiR2VuZXJpYyBUcnVzdFpvbmUgRHJpdmVyIiBieSBKYXZpZXIgR29u esOhbGV6IDxqYXZpZXJAamF2aWdvbi5jb20+Cj4gCj4gQ2FuIHlvdSBnaXZlIGFuIGV4YW1wbGUg Zm9yIGEgc3lzdGVtIHRoYXQgd291bGQgY29udGFpbiBtb3JlIHRoYW4gb25lCj4gVEVFPyBJIHNl ZSB0aGF0IHlvdSBzdXBwb3J0IGR5bmFtaWMgcmVnaXN0cmF0aW9uLCBhbmQgaXQncyBjbGVhciB0 aGF0Cj4gdGhlcmUgY2FuIGJlIG1vcmUgdGhhbiBvbmUgdHlwZSBvZiBURUUsIGJ1dCB3aHkgd291 bGQgb25lIGhhdmUgbW9yZQo+IHRoYW4gb25lIGF0IGEgdGltZSwgYW5kIHdoeSBub3QgbW9yZSB0 aGFuIDMyPwoKSSBrbm93IHRoYXQgU1QgaGFzIHN5c3RlbXMgd2hlcmUgdGhlcmUncyBvbmUgVEVF IGluIFRydXN0Wm9uZSBhbmQKYW5vdGhlciBURUUgb24gYSBzZXBhcmF0ZSBzZWN1cmUgY28tcHJv Y2Vzc29yLiBJZiB5b3UgaGF2ZSBzZXZlcmFsIFRFRXMKaXQncyBwcm9iYWJseSBiZWNhdXNlIHRo ZXkgaGF2ZSBkaWZmZXJlbnQgY2FwYWJpbGl0aWVzIChwZXJmb3JtYW5jZQp2ZXJzdXMgbGV2ZWwg b2Ygc2VjdXJpdHkpLiBKdXN0IGdvaW5nIGJleW9uZCB0d28gb3IgdGhyZWUgZGlmZmVyZW50Cmxl dmVscyBvZiBzZWN1cml0eSB3aXRoIGRpZmZlcmVudCBURUVzIHNvdW5kcyBhIGJpdCBleHRyZW1l LCBzbyBhCm1heGltdW0gb2YgMzIgb3IgMTYgc2hvdWxkIGJlIGZhaXJseSBzYWZlLiBJZiBpdCB0 dXJucyBvdXQgSSdtIHdyb25nIGluCnRoaXMgYXNzdW1wdGlvbiBpdCdzIG5vdCB0aGF0IGhhcmQg dG8gY29ycmVjdCBpdC4KCj4gCj4gPiArc3RhdGljIGludCB0ZWVfaW9jdGxfaW52b2tlKHN0cnVj dCB0ZWVfY29udGV4dCAqY3R4LAo+ID4gKwkJCSAgICBzdHJ1Y3QgdGVlX2lvY3RsX2J1Zl9kYXRh IF9fdXNlciAqdWJ1ZikKPiA+ICt7Cj4gPiArCWludCByYzsKPiA+ICsJc2l6ZV90IG47Cj4gPiAr CXN0cnVjdCB0ZWVfaW9jdGxfYnVmX2RhdGEgYnVmOwo+ID4gKwlzdHJ1Y3QgdGVlX2lvY3RsX2lu dm9rZV9hcmcgX191c2VyICp1YXJnOwo+ID4gKwlzdHJ1Y3QgdGVlX2lvY3RsX2ludm9rZV9hcmcg YXJnOwo+ID4gKwlzdHJ1Y3QgdGVlX2lvY3RsX3BhcmFtIF9fdXNlciAqdXBhcmFtcyA9IE5VTEw7 Cj4gPiArCXN0cnVjdCB0ZWVfcGFyYW0gKnBhcmFtcyA9IE5VTEw7Cj4gPiArCj4gPiArCWlmICgh Y3R4LT50ZWVkZXYtPmRlc2MtPm9wcy0+aW52b2tlX2Z1bmMpCj4gPiArCQlyZXR1cm4gLUVJTlZB TDsKPiA+ICsKPiA+ICsJaWYgKGNvcHlfZnJvbV91c2VyKCZidWYsIHVidWYsIHNpemVvZihidWYp KSkKPiA+ICsJCXJldHVybiAtRUZBVUxUOwo+ID4gKwo+ID4gKwlpZiAoYnVmLmJ1Zl9sZW4gPiBU RUVfTUFYX0FSR19TSVpFIHx8Cj4gPiArCSAgICBidWYuYnVmX2xlbiA8IHNpemVvZihzdHJ1Y3Qg dGVlX2lvY3RsX2ludm9rZV9hcmcpKQo+ID4gKwkJcmV0dXJuIC1FSU5WQUw7Cj4gPiArCj4gPiAr CXVhcmcgPSAoc3RydWN0IHRlZV9pb2N0bF9pbnZva2VfYXJnIF9fdXNlciAqKSh1bnNpZ25lZCBs b25nKWJ1Zi5idWZfcHRyOwo+IAo+IHU2NF90b191c2VyX3B0cigpCgpUaGFua3MsIHRoYXQncyBj b252ZW5pZW50LgoKPiAKPiA+ICsJaWYgKGNvcHlfZnJvbV91c2VyKCZhcmcsIHVhcmcsIHNpemVv ZihhcmcpKSkKPiA+ICsJCXJldHVybiAtRUZBVUxUOwo+ID4gKwo+ID4gKwlpZiAoc2l6ZW9mKGFy ZykgKyBURUVfSU9DVExfUEFSQU1fU0laRShhcmcubnVtX3BhcmFtcykgIT0gYnVmLmJ1Zl9sZW4p Cj4gPiArCQlyZXR1cm4gLUVJTlZBTDsKPiA+ICsKPiA+ICsJaWYgKGFyZy5udW1fcGFyYW1zKSB7 Cj4gPiArCQlwYXJhbXMgPSBrY2FsbG9jKGFyZy5udW1fcGFyYW1zLCBzaXplb2Yoc3RydWN0IHRl ZV9wYXJhbSksCj4gPiArCQkJCSBHRlBfS0VSTkVMKTsKPiA+ICsJCWlmICghcGFyYW1zKQo+ID4g KwkJCXJldHVybiAtRU5PTUVNOwo+IAo+IEl0IHdvdWxkIGJlIGdvb2QgdG8gaGF2ZSBhbiB1cHBl ciBib3VuZCBvbiB0aGUgbnVtYmVyIG9mIHBhcmFtZXRlcnMKPiB0byBsaW1pdCB0aGUgc2l6ZSBv ZiB0aGUgbWVtb3J5IGFsbG9jYXRpb24gaGVyZS4KClRoaXMgaXMgYWxyZWFkeSBsaW1pdGVkIGR1 ZSB0bzoKClRoZSB0ZXN0IHdpdGg6IGJ1Zi5idWZfbGVuID4gVEVFX01BWF9BUkdfU0laRQoKQW5k IHRoZW4gYW5vdGhlciB0ZXN0IHRoYXQgdGhlIG51bWJlciBvZiBwYXJhbWV0ZXJzIG1hdGNoZXMg dGhlIGJ1ZmZlciBzaXplCndpdGg6IHNpemVvZihhcmcpICsgVEVFX0lPQ1RMX1BBUkFNX1NJWkUo YXJnLm51bV9wYXJhbXMpICE9IGJ1Zi5idWZfbGVuCgo+IAo+ID4gK2ludCB0ZWVfZGV2aWNlX3Jl Z2lzdGVyKHN0cnVjdCB0ZWVfZGV2aWNlICp0ZWVkZXYpCj4gPiArewo+ID4gKwlpbnQgcmM7Cj4g PiArCj4gPiArCS8qCj4gPiArCSAqIElmIHRoZSB0ZWVkZXYgYWxyZWFkeSBpcyByZWdpc3RlcmVk LCBkb24ndCBkbyBpdCBhZ2Fpbi4gSXQncwo+ID4gKwkgKiBvYnZpb3VzbHkgYW4gZXJyb3IgdG8g dHJ5IHRvIHJlZ2lzdGVyIHR3aWNlLCBidXQgaWYgd2UgcmV0dXJuCj4gPiArCSAqIGFuIGVycm9y IHdlJ2xsIGZvcmNlIHRoZSBkcml2ZXIgdG8gcmVtb3ZlIHRoZSB0ZWVkZXYuCj4gPiArCSAqLwo+ ID4gKwlpZiAodGVlZGV2LT5mbGFncyAmIFRFRV9ERVZJQ0VfRkxBR19SRUdJU1RFUkVEKSB7Cj4g PiArCQlkZXZfZXJyKCZ0ZWVkZXYtPmRldiwgImF0dGVtcHQgdG8gcmVnaXN0ZXIgdHdpY2VcbiIp Owo+ID4gKwkJcmV0dXJuIDA7Cj4gPiArCX0KPiAKPiBJIGRvbid0IHVuZGVyc3RhbmQgd2hhdCB5 b3UgYXJlIHByb3RlY3RpbmcgYWdhaW5zdCBoZXJlLgo+IEhvdyB3b3VsZCB3ZSBnZXQgdG8gdGhp cyBmdW5jdGlvbiB0d2ljZSBmb3IgdGhlIHNhbWUgZGV2aWNlPwo+IAo+IENvdWxkIHlvdSBjaGFu Z2UgdGhlIGNhbGxlciBzbyBpdCBkb2Vzbid0IGhhcHBlbj8KClllcyB0aGUgY2FsbGVyIGNhbiBi ZSBjaGFuZ2VkLCBJJ2xsIHJldHVybiBhbiBlcnJvciBpbnN0ZWFkIChhbmQgcmVtb3ZlCnRoZSBj b21tZW50KS4KCj4gCj4gPiArLyoqCj4gPiArICogc3RydWN0IHRlZV9pb2N0bF9wYXJhbSAtIHBh cmFtZXRlcgo+ID4gKyAqIEBhdHRyOiBhdHRyaWJ1dGVzCj4gPiArICogQG1lbXJlZjogYSBtZW1v cnkgcmVmZXJlbmNlCj4gPiArICogQHZhbHVlOiBhIHZhbHVlCj4gPiArICoKPiA+ICsgKiBAYXR0 ciAmIFRFRV9QQVJBTV9BVFRSX1RZUEVfTUFTSyBpbmRpY2F0ZXMgaWYgbWVtcmVmIG9yIHZhbHVl IGlzIHVzZWQgaW4KPiA+ICsgKiB0aGUgdW5pb24uIFRFRV9QQVJBTV9BVFRSX1RZUEVfVkFMVUVf KiBpbmRpY2F0ZXMgdmFsdWUgYW5kCj4gPiArICogVEVFX1BBUkFNX0FUVFJfVFlQRV9NRU1SRUZf KiBpbmRpY2F0ZXMgbWVtcmVmLiBURUVfUEFSQU1fQVRUUl9UWVBFX05PTkUKPiA+ICsgKiBpbmRp Y2F0ZXMgdGhhdCBub25lIG9mIHRoZSBtZW1iZXJzIGFyZSB1c2VkLgo+ID4gKyAqLwo+ID4gK3N0 cnVjdCB0ZWVfaW9jdGxfcGFyYW0gewo+ID4gKwlfX3U2NCBhdHRyOwo+ID4gKwl1bmlvbiB7Cj4g PiArCQlzdHJ1Y3QgdGVlX2lvY3RsX3BhcmFtX21lbXJlZiBtZW1yZWY7Cj4gPiArCQlzdHJ1Y3Qg dGVlX2lvY3RsX3BhcmFtX3ZhbHVlIHZhbHVlOwo+ID4gKwl9IHU7Cj4gPiArfTsKPiA+ICsKPiA+ ICsjZGVmaW5lIFRFRV9JT0NUTF9VVUlEX0xFTgkJMTYKPiA+ICsKPiAKPiBIYXZpbmcgYSB1bmlv biBpbiBhbiBpb2N0bCBhcmd1bWVudCBzZWVtcyBvZGQuIEhhdmUgeW91IGNvbnNpZGVyZWQKPiB1 c2luZyB0d28gZGlmZmVyZW50IGlvY3RsIGNvbW1hbmQgbnVtYmVycyBkZXBlbmRpbmcgb24gdGhl IHR5cGU/CgpzdHJ1Y3QgdGVlX2lvY3RsX3BhcmFtIGlzIHVzZWQgYXMgYW4gYXJyYXkgYW5kIHNv bWUgcGFyYW1ldGVycyBjYW4gYmUKbWVtcmVmcyB3aGlsZSBvdGhlciBhcmUgdmFsdWVzLgoKPiAK PiA+ICsvKioKPiA+ICsgKiBzdHJ1Y3QgdGVlX2lvY2xfc3VwcF9zZW5kX2FyZyAtIFNlbmQgYSBy ZXNwb25zZSB0byBhIHJlY2VpdmVkIHJlcXVlc3QKPiA+ICsgKiBAcmV0Oglbb3V0XSByZXR1cm4g dmFsdWUKPiA+ICsgKiBAbnVtX3BhcmFtcwlbaW5dIG51bWJlciBvZiBwYXJhbWV0ZXJzIGZvbGxv d2luZyB0aGlzIHN0cnVjdAo+ID4gKyAqLwo+ID4gK3N0cnVjdCB0ZWVfaW9jbF9zdXBwX3NlbmRf YXJnIHsKPiA+ICsJX191MzIgcmV0Owo+ID4gKwlfX3UzMiBudW1fcGFyYW1zOwo+ID4gKwkvKgo+ ID4gKwkgKiB0aGlzIHN0cnVjdCBpcyA4IGJ5dGUgYWxpZ25lZCBzaW5jZSB0aGUgJ3N0cnVjdCB0 ZWVfaW9jdGxfcGFyYW0nCj4gPiArCSAqIHdoaWNoIGZvbGxvd3MgcmVxdWlyZXMgOCBieXRlIGFs aWdubWVudC4KPiA+ICsJICoKPiA+ICsJICogQ29tbWVudGVkIG91dCBlbGVtZW50IHVzZWQgdG8g dmlzdWFsaXplIHRoZSBsYXlvdXQgZHluYW1pYyBwYXJ0Cj4gPiArCSAqIG9mIHRoZSBzdHJ1Y3Qu IFRoaXMgZmllbGQgaXMgbm90IGF2YWlsYWJsZSBhdCBhbGwgaWYKPiA+ICsJICogbnVtX3BhcmFt cyA9PSAwLgo+ID4gKwkgKgo+ID4gKwkgKiBzdHJ1Y3QgdGVlX2lvY3RsX3BhcmFtIHBhcmFtc1tu dW1fcGFyYW1zXTsKPiA+ICsJICovCj4gPiArfSBfX2FsaWduZWQoOCk7Cj4gCj4gSSdkIG1ha2Ug dGhhdCAKPiAKPiAJc3RydWN0IHRlZV9pb2N0bF9wYXJhbSBwYXJhbXNbMF07Cj4gCj4gYXMgd2Vs IGhlcmUsIGFzIEkgYWxzbyBjb21tZW50ZWQgaW4gcGF0Y2ggMyB0aGF0IGhhcyBhIHNpbWlsYXIg c3RydWN0dXJlLgoKSSdtIGNvbmNlcm5lZCB0aGF0IHRoaXMgbWF5IGNhdXNlIHdhcm5pbmdzIHdo ZW4gY29tcGlsaW5nIGZvciB1c2VyIHNwYWNlCmRlcGVuZGluZyBvbiBjb21waWxlciBhbmQgb3B0 aW9ucy4gQW0gSSB0b28gY2F1dGlvdXMgaGVyZT8KIApUaGFua3MsCkplbnMKCl9fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFp bGluZyBsaXN0CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlz dHMuaW5mcmFkZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK