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Wed, 21 May 2025 15:30:34 +0000 Message-ID: <3e1ffd2e-b002-48b5-b41c-24787aa652e3@amazon.com> Date: Wed, 21 May 2025 17:30:32 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3] kexec: Enable CMA based contiguous allocation To: Baoquan He , Zhongkun He CC: , , Andrew Morton , Pasha Tatashin , References: <20250513180229.7494-1-graf@amazon.com> Content-Language: en-US From: Alexander Graf In-Reply-To: X-Originating-IP: [172.19.99.218] X-ClientProxiedBy: EX19D035UWA004.ant.amazon.com (10.13.139.109) To EX19D020UWC003.ant.amazon.com (10.13.138.187) Content-Type: text/plain; charset="utf-8"; format="flowed" Content-Transfer-Encoding: base64 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250521_083040_850559_7D9F5914 X-CRM114-Status: GOOD ( 11.99 ) 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: , Sender: "kexec" Errors-To: kexec-bounces+kexec=archiver.kernel.org@lists.infradead.org Ck9uIDIxLjA1LjI1IDEyOjMwLCBCYW9xdWFuIEhlIHdyb3RlOgo+Cj4gT24gMDUvMjEvMjUgYXQg MDM6NDdwbSwgWmhvbmdrdW4gSGUgd3JvdGU6Cj4+IE9uIFdlZCwgTWF5IDE0LCAyMDI1IGF0IDI6 NDDigK9BTSBBbGV4YW5kZXIgR3JhZiA8Z3JhZkBhbWF6b24uY29tPiB3cm90ZToKPiAuLi4uLi4K Pj4+ICAgLyoqCj4+PiAgICAqIGtleGVjX2xvY2F0ZV9tZW1faG9sZSAtIGZpbmQgZnJlZSBtZW1v cnkgZm9yIHRoZSBwdXJnYXRvcnkgb3IgdGhlIG5leHQga2VybmVsCj4+PiAgICAqIEBrYnVmOiAg ICAgIFBhcmFtZXRlcnMgZm9yIHRoZSBtZW1vcnkgc2VhcmNoLgo+Pj4gQEAgLTY0OCw2ICs2ODQs MTMgQEAgaW50IGtleGVjX2xvY2F0ZV9tZW1faG9sZShzdHJ1Y3Qga2V4ZWNfYnVmICprYnVmKQo+ Pj4gICAgICAgICAgaWYgKGtidWYtPm1lbSAhPSBLRVhFQ19CVUZfTUVNX1VOS05PV04pCj4+PiAg ICAgICAgICAgICAgICAgIHJldHVybiAwOwo+Pj4KPj4+ICsgICAgICAgLyoKPj4+ICsgICAgICAg ICogVHJ5IHRvIGZpbmQgYSBmcmVlIHBoeXNpY2FsbHkgY29udGlndW91cyBibG9jayBvZiBtZW1v cnkgZmlyc3QuIFdpdGggdGhhdCwgd2UKPj4+ICsgICAgICAgICogY2FuIGF2b2lkIGFueSBjb3B5 aW5nIGF0IGtleGVjIHRpbWUuCj4+PiArICAgICAgICAqLwo+Pj4gKyAgICAgICBpZiAoIWtleGVj X2FsbG9jX2NvbnRpZyhrYnVmKSkKPj4+ICsgICAgICAgICAgICAgICByZXR1cm4gMDsKPj4gSUlV QywgVGhlIGtleGVjX2xvY2F0ZV9tZW1faG9sZSgpIGZ1bmN0aW9uIGlzIGFsc28gdXNlZCBpbgo+ PiB0aGUgS0VYRUNfVFlQRV9DUkFTSCBraW1hZ2UsIGJ1dCBrZXhlY19hbGxvY19jb250aWcoKSBk b2VzIG5vdCBza2lwIGl0Lgo+PiBUaGlzIGNhbiBjYXVzZSBrZHVtcCB0byBmYWlsIGFuZCBsZWFk IHRvIENNQSBtZW1vcnkgbGVha2FnZS4KPiBUaGF0IGlzIHRydWUgYW5kIGdvb2QgY2F0Y2gsIGFu ZCBmaXggaXMgbmVlZGVkIHRvIHNraXAgY21hIGFsbG9jIGZvcgo+IGtkdW1wLgoKClRoYW5rcyBm b3IgY2F0Y2hpbmcgdGhpcyEgSSBhZGRlZCBhIGNoZWNrIHRvIGVuc3VyZSB3ZSBkb24ndCB1c2Ug dGhlIENNQSAKbG9naWMgd2l0aCBjcmFzaCBrZXJuZWxzIGluIHY0IGFuZCBwb3N0ZWQgaXQuCgoK QWxleAoKCgoKCkFtYXpvbiBXZWIgU2VydmljZXMgRGV2ZWxvcG1lbnQgQ2VudGVyIEdlcm1hbnkg R21iSApUYW1hcmEtRGFuei1TdHIuIDEzCjEwMjQzIEJlcmxpbgpHZXNjaGFlZnRzZnVlaHJ1bmc6 IENocmlzdGlhbiBTY2hsYWVnZXIsIEpvbmF0aGFuIFdlaXNzCkVpbmdldHJhZ2VuIGFtIEFtdHNn ZXJpY2h0IENoYXJsb3R0ZW5idXJnIHVudGVyIEhSQiAyNTc3NjQgQgpTaXR6OiBCZXJsaW4KVXN0 LUlEOiBERSAzNjUgNTM4IDU5Nwo=