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b=TYZrZOpdyRpCUpiM+0YuwK+jT8OyuUviYJwOpxdj9I7vqi+AqqH0w5ypyMMqRoz4SciwqoCyqFvssFflEOPmmXY5diiDNMm7zxgE26FBNTX+NlAL9O+D3Aru5YTrj9iH0vJP/eTqogbCSlq62+ZlZzu+TgKbBbcN3J59lFU7I8o= Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=amd.com; Received: from BL4PR12MB9505.namprd12.prod.outlook.com (2603:10b6:208:591::16) by IA0PR12MB8225.namprd12.prod.outlook.com (2603:10b6:208:408::6) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.21.360.6; Wed, 26 Aug 2026 11:33:14 +0000 Received: from BL4PR12MB9505.namprd12.prod.outlook.com ([fe80::73aa:eb8c:a86b:5a83]) by BL4PR12MB9505.namprd12.prod.outlook.com ([fe80::73aa:eb8c:a86b:5a83%5]) with mapi id 15.21.0360.008; Wed, 26 Aug 2026 11:33:14 +0000 Message-ID: <80abfa09-5b23-4522-9ff8-649588d8eaff@amd.com> Date: Wed, 26 Aug 2026 17:03:07 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 6.18 0019/1611] iommu/amd: Use maximum PPR log buffer size when SNP is enabled on Family 0x19 To: Usama Arif , Sasha Levin , Greg Kroah-Hartman Cc: stable@vger.kernel.org, patches@lists.linux.dev, Borislav Petkov , Suravee Suthikulpanit , Joerg Roedel , Dheeraj Kumar Srivastava , samuelcrossley@gmail.com References: <20260813132447.3396830-1-usama.arif@linux.dev> <20260814193000.12@kernel.org> <0a97021b-7fdf-4e29-b59d-d9fe07c6c409@linux.dev> Content-Language: en-US From: Vasant Hegde In-Reply-To: <0a97021b-7fdf-4e29-b59d-d9fe07c6c409@linux.dev> Content-Type: text/plain; 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That would tell >> us whether this is the code itself rather than anything specific to the 6.18 >> backport, and it decides whether a stable-side revert is the right remedy at >> all. >> We have investigated this issue internally and confirmed its FW issue. Since its CVE fix, I'd recommend upgrading the FW. Hence no changes required in stable/mainline kernel. -Vasant