[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [RFC PATCH V3 09/11] HV/IOMMU: Enable swiotlb bounce buffer for Isolation VM
- To: Tianyu Lan <ltykernel@xxxxxxxxx>, kys@xxxxxxxxxxxxx, haiyangz@xxxxxxxxxxxxx, sthemmin@xxxxxxxxxxxxx, wei.liu@xxxxxxxxxx, decui@xxxxxxxxxxxxx, tglx@xxxxxxxxxxxxx, mingo@xxxxxxxxxx, bp@xxxxxxxxx, x86@xxxxxxxxxx, hpa@xxxxxxxxx, arnd@xxxxxxxx, dave.hansen@xxxxxxxxxxxxxxx, luto@xxxxxxxxxx, peterz@xxxxxxxxxxxxx, akpm@xxxxxxxxxxxxxxxxxxxx, kirill.shutemov@xxxxxxxxxxxxxxx, rppt@xxxxxxxxxx, hannes@xxxxxxxxxxx, cai@xxxxxx, krish.sadhukhan@xxxxxxxxxx, saravanand@xxxxxx, Tianyu.Lan@xxxxxxxxxxxxx, konrad.wilk@xxxxxxxxxx, hch@xxxxxx, m.szyprowski@xxxxxxxxxxx, robin.murphy@xxxxxxx, jgross@xxxxxxxx, sstabellini@xxxxxxxxxx, joro@xxxxxxxxxx, will@xxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, davem@xxxxxxxxxxxxx, kuba@xxxxxxxxxx, jejb@xxxxxxxxxxxxx, martin.petersen@xxxxxxxxxx
- From: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
- Date: Thu, 3 Jun 2021 13:04:57 -0400
- Arc-authentication-results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=oracle.com; dmarc=pass action=none header.from=oracle.com; dkim=pass header.d=oracle.com; arc=none
- Arc-message-signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=W0kt1JqVyTcAf9VeNPE43ObyZ/OpJxPvaVZ7K1L2fZU=; b=RPVw+HO2jpm4EAFg/YS59qxwPOOn9821cJzYoH3p93fA51udOIcEEpwxsh5iprCAwAsEHK3D+zG4yH1xbpywb1cMDwKBAPmK8LEVJIrWG5sJ1uPfiXZRhbHF1chG2Dbrd79pKSiLW1yu4fn2+tHgoYWihDJvm84cRiJISEgk1DqaaN6Th61eTxdXwG84F4nGFHerBpSZ3HohOuHgT0u3aFT+WP0Z5Gm1qjQ1Z+G8VQ5BX3OqXqiotacp3PqoS6iUriYwgqrhdDhhdtAR2MSqW3gzFb9yxTaXqfR8MHaSIagDfUO6cCrToa8+MPzAuDE+UuY7NHm/hUDX+gYfqfq5Zw==
- Arc-seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=YDdEyxAX/G5netsP5tZvnWy8kr5ph7B6q/nvKRPd/104mUhQk0MZIeCwyADh20LdvDz71Gv46lg9x/e+Vbvjk6uOlWPyPAoZOstEvvs1y5t+OCJwEkEqvtOiye6jEDiklMOObVXIClrLY9kT5tQkC2vo8DikIj0dq7sBiF/NAg72OhXlUf1WM+5DLVGn8qa4zMGcZWV3GfLIOyAXQG1G2P4oOo+JOhGth16KwULn8q54NiacuHt8FQaVldDgho3MDdeRGBvgEtJKaMU8JNDsglyQfFeVFH1UZt5rP1lVgqvw4F6VAPktyqaBUylVIzJ64BPXLdsEiLFeYLBEDyXqag==
- Authentication-results: microsoft.com; dkim=none (message not signed) header.d=none;microsoft.com; dmarc=none action=none header.from=oracle.com;
- Cc: iommu@xxxxxxxxxxxxxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-hyperv@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-scsi@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, vkuznets@xxxxxxxxxx, thomas.lendacky@xxxxxxx, brijesh.singh@xxxxxxx, sunilmut@xxxxxxxxxxxxx
- Delivery-date: Thu, 03 Jun 2021 17:07:21 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 6/3/21 11:37 AM, Tianyu Lan wrote:
>
> Yes, the dependency is between hyperv_swiotlb_detect() and
> pci_swiotlb_detect_override()/pci_swiotlb_detect_4gb(). Now
> pci_swiotlb_detect_override() and pci_swiotlb_detect_4gb() depends on
> pci_xen_swiotlb_detect(). To keep dependency between
> hyperv_swiotlb_detect() and pci_swiotlb_detect_override/4gb(), make
> pci_xen_swiotlb_detect() depends on hyperv_swiotlb_detect() and just to
> keep order in the IOMMU table. Current iommu_table_entry only has one
> depend callback and this is why I put xen depends on hyperv detect function.
>
Ah, ok. Thanks.
-boris
|
