From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id E2D2119F10A; Tue, 20 May 2025 12:50:34 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747745437; cv=none; b=QU+KFOzfVT0f870kzi+8Kqizye7ZTAyu/PTN9D9w2vlBQaMw46KbB6vYe2gVz7gCFcfIp5dC6/W+7sgEAnPZ9xQD0pppVFUkT0Bv0vtNThBPs8evsM13LycoxA0dTVCPLH0zmwXgjzvAwL5aivwEQhgisFbBjmnXwiZ9GTcnuCA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1747745437; c=relaxed/simple; bh=by1pqkERQFJkQ/qYm8eJb4kDVaODxlwfBojf6AMYC/Q=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=lZnSv1LiblFdbZgK1CuqkOghD9e8YFD547qH0/7w6gHyNF/Ainw0WmdftFSlI127JA4buNwrvF0PT2YyJZVqOZ8r4D6dWUBAxnKPVzrodvet/57LuyMnzixQIcfZj6bhDcEJPrUheiSUjhHWHtSKBw6q5Qe4jWNx+Kq/JXDc9ns= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C9A151516; Tue, 20 May 2025 05:50:20 -0700 (PDT) Received: from [10.1.36.74] (Suzukis-MBP.cambridge.arm.com [10.1.36.74]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id BFAD73F5A1; Tue, 20 May 2025 05:50:30 -0700 (PDT) Message-ID: <5cf972df-c589-4f5d-82a5-74dd49676687@arm.com> Date: Tue, 20 May 2025 13:50:29 +0100 Precedence: bulk X-Mailing-List: kvmarm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v8 37/43] arm64: RME: Propagate max SVE vector length from RMM Content-Language: en-GB To: Steven Price , kvm@vger.kernel.org, kvmarm@lists.linux.dev Cc: Jean-Philippe Brucker , Catalin Marinas , Marc Zyngier , Will Deacon , James Morse , Oliver Upton , Zenghui Yu , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Joey Gouly , Alexandru Elisei , Christoffer Dall , Fuad Tabba , linux-coco@lists.linux.dev, Ganapatrao Kulkarni , Gavin Shan , Shanker Donthineni , Alper Gun , "Aneesh Kumar K . V" References: <20250416134208.383984-1-steven.price@arm.com> <20250416134208.383984-38-steven.price@arm.com> From: Suzuki K Poulose In-Reply-To: <20250416134208.383984-38-steven.price@arm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 16/04/2025 14:41, Steven Price wrote: > From: Jean-Philippe Brucker > > RMM provides the maximum vector length it supports for a guest in its > feature register. Make it visible to the rest of KVM and to userspace > via KVM_REG_ARM64_SVE_VLS. > > Signed-off-by: Jean-Philippe Brucker > Signed-off-by: Steven Price Reviewed-by: Suzuki K Poulose