[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [PATCH 2/3] arm/mpu: Introduce `v8r_el1_msa` device tree property for domains
- To: Luca Fancellu <Luca.Fancellu@xxxxxxx>, "Halder, Ayan Kumar" <ayankuma@xxxxxxx>
- From: "Orzel, Michal" <michal.orzel@xxxxxxx>
- Date: Mon, 16 Feb 2026 08:53:07 +0100
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 165.204.84.17) smtp.rcpttodomain=arm.com smtp.mailfrom=amd.com; dmarc=pass (p=quarantine sp=quarantine pct=100) action=none header.from=amd.com; dkim=none (message not signed); arc=none (0)
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=tQUtTnOcLFv6dyWBn4pVzq3JVCF4sqS6YPDgpC1FCF4=; b=AX29MxTp6OlsbSBfOJ5V41Hw1EzWzYIU9vQk663+PhB3jDUA2HCQ/EW8JMcq9IjUYTOQrcz1vC/AvEHg/65ew95fdqaYcapvjTPhAipqNau1TAwbIrNeUA0sSiVR19KjBxW4mnjqcFtHWJaixwsitdivz8/qmrES8DKrz1vBmRN9IxuQDOwNINLcqw5VqKAhNIVvBrfmdoC3+c8hSSal8x6cHHSDSjKF2lg7eoFIhSwLVFqkoOtIbufB0kIIui8o3KAokqBJR+KaR+ee68W03Fhl6gnStfvUDJZ4pWgyOCeB/5H8EHsvNzFGfZ2HHdCgLIoSRe9Hs6K3mjCR4xREbQ==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=gAw3GsNH3nezouKWA8ZhZ+zUevcm8E9Y7uIKRdml13whk7DfFIG72RyLskRawAVZIG/dfGqug1nDbSNeGsYLI+KYxHE7p/7WhTsLFqFSP1d8u0W56QEWiZJGzpAlQgu6zzKtyN76whsaAAvgKrWfYH7kVv9kNelV4KVo0kxu8iA7OO9BAxGeaTt+Jhrke+I/3DaNRWWM8LB6rTy4oE10cHdspqIhVeC5iFqd0SOBKaeeMpREwYc43+AY3oPcECJAtGldzyDhkn5mXStU2mjMPrCx9bSK3pFsdpARy/XlHfkhv38eShBdZGS/4+paRmLqs1WO1xFBdXziSPYz5158EQ==
- Cc: Harry Ramsey <Harry.Ramsey@xxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Julien Grall <julien@xxxxxxx>, Bertrand Marquis <Bertrand.Marquis@xxxxxxx>, Volodymyr Babchuk <Volodymyr_Babchuk@xxxxxxxx>
- Delivery-date: Mon, 16 Feb 2026 07:53:23 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 13/02/2026 10:20, Luca Fancellu wrote:
> Hi Ayan,
>
>>
>> Further if we can set `v8r_el1_msa = mmu` by default for everyone (Armv8-A,
>> Armv8-R) , then we can reduce further if-def.
>>
>
> This was Michal suggestion to have mpu by default, so I would wait for his
> reply before proceeding further on this.
Yes, we should keep mpu as a default which matches the Arm ARM. MMU is optional
whereas MPU is not.
~Michal
|
