From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 02AEB4F3ED5; Wed, 30 Sep 2026 14:27:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790778467; cv=none; b=j91435vu78mUjH3/sk5gru+AxMtdD6IEeTrT4Wwn/O5CkkUVGigbgMU9ot4jW4PRCqoCCLlBW6W7N+5R07/DXakX6zp/RX3KAtFa6K33kPk2J6w+hl2nllyqia+XoocXeMeQMWSxJy3kInl0Cb6TKLOmkic5/87HXyt5jlek7OA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790778467; c=relaxed/simple; bh=Wfi26VXgshrkmgSWcy0xfANrukFOjTdXZLi516LNLbk=; h=From:Subject:To:Cc:In-Reply-To:References:Content-Type:Date: Message-Id; b=px0+xZJkNt46sBQFbtJt7Aluhg0IoaBOEtJZJVZ/FSS8FI8frVnR6DuAKrwuPgx87DeK9RRsaAopu7syFCJCRevjXkJ+Z1g5pZiHFaJ5kh41Fzg+fboSNlbfXQOebdH4m2Px5JYZiT8HtqcP+NuB4o1UTWhZN7KSWloHDXc2D/E= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Oa41pPv/; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Oa41pPv/" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 172031F000FF; Wed, 30 Sep 2026 14:27:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1790778453; bh=WsSkvb5QIumlCO0oqFroFjggPccVImChj2tnLC7Gp8k=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=Oa41pPv/IH6Y4uuahu7F2+cjPb2PtxFsTjD3Tj3X6HisiIMDkrCtyZTMCwPCYzzlv h78VwDZkBhPZgPsksIas5IvX3Sdm00g7SGt6CHvcgtlLOWwMjrj6wAaWkeq6Xtv9cH uZnxXv9E7ccBG3JY2p+dG0Q6hPHHWVOgFf8tsTQsE6WgWMVwGpEJiiMOv4u838Qk4K TloIZFDWR8GZUO23BTE783mOTtM2WqCdfxnv1VJQQ2f8VvvivJia57H/nENV9FtX+g da1knbdO2tfp0L9+zoYKclx0WhJrL317t+e9zdz07Iz9Om6jIkeShmj+S2shx270+Z PKicaqC5VbZCA== From: sashiko-bot@kernel.org Subject: Re: [PATCH v6 1/5] hyperv: Introduce new hypercall interfaces used by Hyper-V guest IOMMU Reply-To: sashiko-reviews@lists.linux.dev To: "Yu Zhang" Cc: linux-pci@vger.kernel.org, linux-hyperv@vger.kernel.org In-Reply-To: <20260930141409.437904-2-zhangyu1@linux.microsoft.com> References: <20260930141409.437904-1-zhangyu1@linux.microsoft.com> <20260930141409.437904-2-zhangyu1@linux.microsoft.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Wed, 30 Sep 2026 14:27:32 +0000 Message-Id: <20260930142733.172031F000FF@smtp.kernel.org> Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: > From: Wei Liu >=20 > Hyper-V guest IOMMU is a para-virtualized IOMMU based on hypercalls. > Introduce the hypercalls used by the child partition to interact with > this facility. >=20 > These hypercalls fall into below categories: > - Detection and capability: HVCALL_GET_IOMMU_CAPABILITIES is used to > detect the existence and capabilities of the guest IOMMU. >=20 > - Device management: HVCALL_GET_LOGICAL_DEVICE_PROPERTY is used to > check whether an endpoint device is managed by the guest IOMMU. >=20 > - Domain management: A set of hypercalls is provided to handle the > creation, configuration, and deletion of guest domains, as well as > the attachment/detachment of endpoint devices to/from those domains. >=20 > - IOTLB flushing: HVCALL_FLUSH_DEVICE_DOMAIN is used to ask Hyper-V > for a domain-selective IOTLB flush (which in its handler may flush > the device TLB as well). >=20 > Signed-off-by: Wei Liu > Co-developed-by: Easwar Hariharan > Signed-off-by: Easwar Hariharan > Co-developed-by: Yu Zhang > Signed-off-by: Yu Zhang Sashiko has reviewed this patch and found no issues. It looks great! --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/20260930141409.4379= 04-1-zhangyu1@linux.microsoft.com?part=3D1