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Thu, 11 Jan 2024 19:20:56 +0000 (GMT) Message-ID: Date: Thu, 11 Jan 2024 14:20:56 -0500 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 6/7] ima: configure memory to log events between kexec load and execute To: Tushar Sugandhi , Mimi Zohar , roberto.sassu@huaweicloud.com, roberto.sassu@huawei.com, eric.snowberg@oracle.com, ebiederm@xmission.com, noodles@fb.com, bauermann@kolabnow.com, linux-integrity@vger.kernel.org, kexec@lists.infradead.org Cc: code@tyhicks.com, nramas@linux.microsoft.com, paul@paul-moore.com References: <20231216010729.2904751-1-tusharsu@linux.microsoft.com> <20231216010729.2904751-7-tusharsu@linux.microsoft.com> <3e8cb0bd77a2b73613b19febb2b3121ef0ea8255.camel@linux.ibm.com> <0df62e0e-a9d5-434c-866c-936cafeed480@linux.microsoft.com> Content-Language: en-US From: Stefan Berger In-Reply-To: <0df62e0e-a9d5-434c-866c-936cafeed480@linux.microsoft.com> X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: ZG4bSnlhTFaoi9Te6do-9QXYIZBm8gvT X-Proofpoint-GUID: ZG4bSnlhTFaoi9Te6do-9QXYIZBm8gvT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-11_11,2024-01-11_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 malwarescore=0 phishscore=0 spamscore=0 impostorscore=0 priorityscore=1501 clxscore=1011 mlxlogscore=473 adultscore=0 mlxscore=0 suspectscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401110151 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240111_112130_755548_0DE705CF X-CRM114-Status: GOOD ( 23.22 ) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Transfer-Encoding: base64 Content-Type: text/plain; charset="utf-8"; Format="flowed" Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org CgpPbiAxLzExLzI0IDEzOjEzLCBUdXNoYXIgU3VnYW5kaGkgd3JvdGU6Cj4gCj4gCj4gT24gMS83 LzI0IDA5OjAwLCBNaW1pIFpvaGFyIHdyb3RlOgo+PiBPbiBGcmksIDIwMjQtMDEtMDUgYXQgMTI6 MjAgLTA4MDAsIFR1c2hhciBTdWdhbmRoaSB3cm90ZToKPj4+Pj4gZGlmZiAtLWdpdCBhL3NlY3Vy aXR5L2ludGVncml0eS9pbWEvS2NvbmZpZyAKPj4+Pj4gYi9zZWN1cml0eS9pbnRlZ3JpdHkvaW1h L0tjb25maWcKPj4+Pj4gaW5kZXggNjBhNTExYzZiNTgzLi44NzkyYjdhYWI3NjggMTAwNjQ0Cj4+ Pj4+IC0tLSBhL3NlY3VyaXR5L2ludGVncml0eS9pbWEvS2NvbmZpZwo+Pj4+PiArKysgYi9zZWN1 cml0eS9pbnRlZ3JpdHkvaW1hL0tjb25maWcKPj4+Pj4gQEAgLTMzOCwzICszMzgsMTIgQEAgY29u ZmlnIElNQV9ESVNBQkxFX0hUQUJMRQo+Pj4+PiDCoMKgwqDCoMKgIGRlZmF1bHQgbgo+Pj4+PiDC oMKgwqDCoMKgIGhlbHAKPj4+Pj4gwqDCoMKgwqDCoMKgwqDCoCBUaGlzIG9wdGlvbiBkaXNhYmxl cyBodGFibGUgdG8gYWxsb3cgbWVhc3VyZW1lbnQgb2YgCj4+Pj4+IGR1cGxpY2F0ZSByZWNvcmRz Lgo+Pj4+PiArCj4+Pj4+ICtjb25maWcgSU1BX0tFWEVDX0VYVFJBX01FTU9SWV9LQgo+Pj4+PiAr wqDCoMKgIGludAo+Pj4+PiArwqDCoMKgIGRlcGVuZHMgb24gSU1BICYmIElNQV9LRVhFQwo+Pj4+ PiArwqDCoMKgIGRlZmF1bHQgNjQKPj4+Pgo+Pj4+IFNpbmNlIHRoaXMgaXNuJ3Qgb3B0aW9uYWws IHRoZSBkZWZhdWx0IHNob3VsZCByZW1haW4gYXMgYSBoYWxmIHBhZ2UuCj4+Pj4gU2luY2UgYSBw YWdlIGlzIGFyY2hpdGVjdHVyZSBzcGVjaWZpYywgdGhlIGRlZmF1bHQgd2lsbCBuZWVkIHRvIGJl IGFyY2gKPj4+PiDCoMKgIHNwZWNpZmljCj4+Pj4KPj4+IEl0IHdhcyBhIGZlZWRiYWNrIGZyb20g U3RlZmFuIGluIHRoZSBWMiBvZiB0aGlzIHNlcmllcyB0byBjb252ZXJ0IGl0Cj4+PiBmcm9tIG51 bWJlciBvZiBQQUdFUyB0byBLQi5bMV0KPj4+Cj4+PiBCdXQgSSBjYW4gcmV2ZXJ0IGl0IHRvIG51 bWJlciBvZiBwYWdlcyBhZ2Fpbi4KPj4+Cj4+PiBBbHNvLCBtYWtpbmcgdGhlIGRlZmF1bHQgdmFs dWUgYXMgYSBmcmFjdGlvbiAoMS8yIHBhZ2UpIGZlZWxzIHdlaXJkIGZvcgo+Pj4gYSBDT05GSUcg dmFyaWFibGUuCj4+Pgo+Pj4gSXMgaXQgb2sgdG8gbWFrZSB0aGUgZGVmYXVsdCB2YWx1ZSBhcyBv bmUgcGFnZSByYXRoZXIgdGhhbiBoYWxmIHBhZ2U/Cj4+Cj4+IFRoZSBwb2ludCBpcyBub3Qgd2hl dGhlciB0aGUgZXh0cmEgbWVtb3J5IGlzIHNwZWNpZmllZCBpbiB0ZXJtcyBvZiAKPj4gcGFnZXMg b3IgS0IuCj4+IEZvciBiYWNrd2FyZHMgY29tcGF0aWJpbGl0eSB0aGUgZXhpc3RpbmcgZGVmYXVs dCBzaG91bGQgYmUgdGhlIHNhbWUgYXMKPj4gcHJldmlvdXNseS7CoCBUaGlzIG1lYW5zIHRoZSBk ZWZhdWx0IG5lZWRzIHRvIGJlIGFyY2hpdGVjdHVyZSBzcGVjaWZpYy5iCj4+ICQgdW5hbWUgLW07 IGdldGNvbmYgUEFHRVNJWkUKPj4geDg2XzY0Cj4+IDQwOTYKPj4gJCB1bmFtZSAtbTsgZ2V0Y29u ZiBQQUdFU0laRQo+PiBwcGM2NGxlCj4+IDY1NTM2Cj4+Cj4+IEZvciBleGFtcGxlOgo+Pgo+PiBk ZWZhdWx0IDMyIGlmIFBQQ182NEtfUEFHRVMKPj4gZGVmYXVsdCAyCj4+Cj4gT2suIFRoYW5rcyBm b3IgdGhlIGNsYXJpZmljYXRpb24uCj4gCj4gCj4gRG8gd2Ugd2FudCB0byBzdXBwb3J0IG9ubHkg NjRLIG9yIDRLIGFzIHBvc3NpYmxlIFBBR0VfU0laRSB2YWx1ZXM/Cj4gSSBzcG90IGNoZWNrZWQg YSBmZXcgYXJjaGl0ZWN0dXJlcywgdGhlcmUgYXJlIHNjZW5hcmlvcyB3aGVyZSBQQUdFX1NJWkUK PiBjb3VsZCBiZSA4SywgMTZLLCAxMjhLLCAyNTZLIGV0Yy4gQW5kIG9mIGNvdXJzZSBtZWdhIHBh Z2VzIHdpdGgKPiBQQUdFX1NJWkUgSU4gTUJzIChkZXRhaWxzIGJlbG93KS4KCkkgd291bGQgbGV0 IHRoZSB1c2VyIHNwZWNpZnkgdGhlIG51bWJlciBvZiBraWxvYnl0ZXMgdG8gcmVzZXJ2ZSBhbmQg ZnJvbSAKdGhpcyB5b3UgY2FuIGNvbmNsdWRlIHRoZSBwYWdlIG51bWJlcnM6CgpuZWVkZWRfcGFn ZXMgPSBLQnNfVE9fUkVTRVJWRSAvIFBBR0VfU0laRQppZiAoS0JzX1RPX1JFU0VSVkVSICUgUEFH RV9TSVpFKQogICAgIG5lZWRlZF9wYWdlcysrOwoKICAgIFN0ZWZhbgoKX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX18Ka2V4ZWMgbWFpbGluZyBsaXN0CmtleGVj QGxpc3RzLmluZnJhZGVhZC5vcmcKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9s aXN0aW5mby9rZXhlYwo=