From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f69.google.com (mail-pj1-f69.google.com [209.85.216.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6E0E547F2E7 for ; Wed, 23 Sep 2026 22:42:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790203375; cv=none; b=miepHgob+vuBwJtFmavnS0FZZ34tZZ/XVDP2Gy4mpRs7+xwBey+EmH/dFbFxeLQ+9EuIJl07T7Er3ZE8HQJSmUUT8gxBdq1EE9pNupDGDuRHSUBNeCFAWtY239V5DkUbXeC89PWCyP/blggCeo0QGhMTG7yLktpKrcixOtrqNyE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790203375; c=relaxed/simple; bh=XC0GtZzu0BD86oQ6ghzNMhSkH0mMeg+u7BsmzLp0cIw=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=RCRkKYSxa7obrBNOTeU0qOrgUToameLOMW2SztlA2YD7CvG5SmtinKprW0XoFSkcbsCj85NaNd/1MKAsnLkTO+XjtghUKx7zJvHjb7rYgeXm4ZBe2ynidehGX2P7zCXCeG5S0tgidliI1a+N/eYWAx8BVPiQafvoLFTNxFjaANM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=Efy9i6Tq; arc=none smtp.client-ip=209.85.216.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--seanjc.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="Efy9i6Tq" Received: by mail-pj1-f69.google.com with SMTP id 98e67ed59e1d1-3965ba1ba3eso1128984a91.2 for ; Wed, 23 Sep 2026 15:42:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1790203372; x=1790808172; darn=vger.kernel.org; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=c4ROB5gmPay6sdQJPjpG61DXTR2zRREmvWIvdqy7Ui4=; b=Efy9i6TqcDJ8YqaJzlDjuCyPwIaLyKS2O9ovCaahkcOfUfw6fBjKXjGsZJxgmIYvfL +ry2BkIWgBmHvvLFso3ZATjr5Ub2nz4RniCbWEwvHx7gtSvqfz0RQqoaSLyHHKr+7cAg fCPynqUX7Bb9fgSAVlw6iIJs08XGw2zX4LQGjdLwkYCaH1slKctwv43/dxQJ5fwr5qlK 3wguolRgh/3ajD/pELswggZC07wCJZ7S8jOUJ/klp/L0Z8QNORQ5nW1tC+43G/7752xM VvPWetDskQ2Td3ZeLBr3OoSizfwykLv7LPxq3KRZhYRIyiLC+bPUnb5JoFg/+gxFbPSe 2rPg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790203372; x=1790808172; h=content-type:cc:to:from:subject:message-id:references:mime-version :in-reply-to:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=c4ROB5gmPay6sdQJPjpG61DXTR2zRREmvWIvdqy7Ui4=; b=xnYLrBrOJfUzmRUcW3TsKk/o43TZTnFyX62xWmvXbxNYeFpGyPKqjcbfvNvpqhynoQ wqUF/xlNdN/hqx5NLZTR5pUNH3gc7TH7Nnw02X2IJPzjTXSBzb1UNUCOWvHybGCvi+ru C77dU6rad5nAN5N1Y01WiBnQcjJbQ0Rw1gtRPVHavq9H+HS8XrhSzTdqCMKk0Vx/5uZR kLm2ymAYszeTn1HDaryy/NxqOzBuFnuTVcU1pOdEMKNbE85qRifNIQrqQoemS/rFsXEE fKysBRtpYH7iCKXFdBmQWV6gFaZbR5rIUvYYSmZw9IBmopO5C4RLAH8m+J+Z2pc1T0Cy zbng== X-Forwarded-Encrypted: i=1; AKwUvByqktKVbiUbngwtsAK0leTGBJj95QoXi1Uj+dTyLgGm7trSz14YfnZ+oXU0xLsywvYV6iPdp0LtYh7xPV7/yHw=@vger.kernel.org X-Gm-Message-State: AFuF++l9ZmOHC5uH41SPow06j67xWj6n3Obaf8XYeDBNF7JYHQLrd5T4 sL1qleBwsZVilwUK/Qzi8DfyITxRmc6YazKpXHYgYpD1iMW8mIFyZGt1SzFylA2w0bnCOg+hU4s H10Haxg== X-Received: from pjbbh7.prod.google.com ([2002:a17:90b:487:b0:3a0:8315:fa7b]) (user=seanjc job=prod-delivery.src-stubby-dispatcher) by 2002:a17:90b:3f87:b0:398:a486:81ec with SMTP id 98e67ed59e1d1-3a0985b8f01mr435176a91.11.1790203372353; Wed, 23 Sep 2026 15:42:52 -0700 (PDT) Date: Wed, 23 Sep 2026 15:42:51 -0700 In-Reply-To: <6-v7-c6d30e8ce1e4+3dfa6-mlx5st_jgg@nvidia.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <0-v7-c6d30e8ce1e4+3dfa6-mlx5st_jgg@nvidia.com> <6-v7-c6d30e8ce1e4+3dfa6-mlx5st_jgg@nvidia.com> Message-ID: Subject: Re: [PATCH v7 06/10] vfio: selftests: Allow drivers to specify required region size From: Sean Christopherson To: Jason Gunthorpe Cc: Alex Williamson , David Matlack , Fuad Tabba , Joey Gouly , kvm@vger.kernel.org, kvmarm@lists.linux.dev, Leon Romanovsky , linux-arm-kernel@lists.infradead.org, linux-kselftest@vger.kernel.org, linux-rdma@vger.kernel.org, Marc Zyngier , Mark Bloch , netdev@vger.kernel.org, Oliver Upton , Paolo Bonzini , Saeed Mahameed , Steffen Eiden , Shuah Khan , Suzuki K Poulose , Tariq Toukan , Zenghui Yu , patches@lists.linux.dev Content-Type: text/plain; charset="us-ascii" On Mon, Sep 21, 2026, Jason Gunthorpe wrote: > Add a region_size field to struct vfio_pci_driver_ops so drivers can > declare how much DMA-mapped region they need. The mlx5 driver will need > ~18MB for firmware pages. Existing drivers pass in the sizeof their state > struct. Since drivers all use only their declared state we can use the > value directly and remove the SZ_2M hard coding. > > Assisted-by: Claude:claude-opus-4.6 > Signed-off-by: Jason Gunthorpe > --- The KVM test still runs, and in David I trust: Acked-by: Sean Christopherson