From: Wei Liu <wei.liu2@citrix.com>
To: Paul Durrant <paul.durrant@citrix.com>
Cc: Kevin Tian <kevin.tian@intel.com>,
Stefano Stabellini <sstabellini@kernel.org>,
Wei Liu <wei.liu2@citrix.com>,
Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>,
Julien Grall <julien.grall@arm.com>,
Jan Beulich <jbeulich@suse.com>,
xen-devel@lists.xenproject.org
Subject: Re: [PATCH v3 02/13] iommu: introduce the concept of BFN...
Date: Thu, 19 Jul 2018 09:08:59 +0100 [thread overview]
Message-ID: <20180719080859.eeb7ntvecfrqr7dg@citrix.com> (raw)
In-Reply-To: <20180717133816.37958-3-paul.durrant@citrix.com>
On Tue, Jul 17, 2018 at 02:38:05PM +0100, Paul Durrant wrote:
> ...meaning 'bus frame number' i.e. a frame number mapped in the IOMMU
> rather than the MMU.
>
> This patch is a largely cosmetic change that substitutes the terms 'gfn'
> and 'gaddr' for 'bfn' and 'baddr' in all the places where the frame number
> or address relate to the IOMMU rather than the MMU.
>
> The parts that are not purely cosmetic are:
>
> - the introduction of a type-safe declaration of bfn_t and definition of
> INVALID_BFN to make the substitution of gfn_x(INVALID_GFN) mechanical.
> - the introduction of __bfn_to_baddr and __baddr_to_bfn (and type-safe
> variants without the leading __) with some use of the former.
>
> Subsequent patches will convert code to make use of type-safe BFNs.
>
> Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Reviewed-by: Wei Liu <wei.liu2@citrix.com>
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next prev parent reply other threads:[~2018-07-19 8:09 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-17 13:38 [PATCH v3 00/13] paravirtual IOMMU interface Paul Durrant
2018-07-17 13:38 ` [PATCH v3 01/13] grant_table: use term 'mfn' for machine frame numbers Paul Durrant
2018-07-17 13:38 ` [PATCH v3 02/13] iommu: introduce the concept of BFN Paul Durrant
2018-07-19 8:08 ` Wei Liu [this message]
2018-07-17 13:38 ` [PATCH v3 03/13] iommu: make use of type-safe BFN and MFN in exported functions Paul Durrant
2018-07-19 8:08 ` Wei Liu
2018-07-17 13:38 ` [PATCH v3 04/13] iommu: push use of type-safe BFN and MFN into iommu_ops Paul Durrant
2018-07-19 8:10 ` Wei Liu
2018-07-17 13:38 ` [PATCH v3 05/13] iommu: don't domain_crash() inside iommu_map/unmap_page() Paul Durrant
2018-07-17 13:38 ` [PATCH v3 06/13] public / x86: introduce __HYPERCALL_iommu_op Paul Durrant
2018-07-17 13:38 ` [PATCH v3 07/13] iommu: track reserved ranges using a rangeset Paul Durrant
2018-07-19 9:01 ` Wei Liu
2018-07-17 13:38 ` [PATCH v3 08/13] x86: add iommu_op to query reserved ranges Paul Durrant
2018-07-19 9:37 ` Wei Liu
2018-07-19 10:03 ` Paul Durrant
2018-07-17 13:38 ` [PATCH v3 09/13] vtd: add lookup_page method to iommu_ops Paul Durrant
2018-07-19 9:55 ` Wei Liu
2018-07-17 13:38 ` [PATCH v3 10/13] x86: add iommu_op to enable modification of IOMMU mappings Paul Durrant
2018-07-20 8:59 ` Wei Liu
2018-07-20 9:05 ` Paul Durrant
2018-07-20 9:19 ` Paul Durrant
2018-07-20 9:30 ` Wei Liu
2018-07-17 13:38 ` [PATCH v3 11/13] memory: add get_paged_gfn() as a wrapper Paul Durrant
2018-07-17 13:38 ` [PATCH v3 12/13] x86: add iommu_ops to modify and flush IOMMU mappings Paul Durrant
2018-07-23 13:35 ` Wei Liu
2018-07-23 13:40 ` Paul Durrant
2018-07-23 13:49 ` Wei Liu
2018-07-23 14:26 ` Wei Liu
2018-07-23 14:27 ` Paul Durrant
2018-07-17 13:38 ` [PATCH v3 13/13] x86: extend the map and unmap iommu_ops to support grant references Paul Durrant
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