From: Avi Kivity <avi@redhat.com>
To: Joerg Roedel <joerg.roedel@amd.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>,
David Woodhouse <dwmw2@infradead.org>,
kvm@vger.kernel.org, iommu@lists.linux-foundation.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 02/11] iommu-api: Add iommu_map and iommu_unmap functions
Date: Sun, 07 Feb 2010 11:38:30 +0200 [thread overview]
Message-ID: <4B6E8A16.8050109@redhat.com> (raw)
In-Reply-To: <1264678682-30655-3-git-send-email-joerg.roedel@amd.com>
On 01/28/2010 01:37 PM, Joerg Roedel wrote:
> These two functions provide support for mapping and
> unmapping physical addresses to io virtual addresses. The
> difference to the iommu_(un)map_range() is that the new
> functions take a gfp_order parameter instead of a size. This
> allows the IOMMU backend implementations to detect easier if
> a given range can be mapped by larger page sizes.
> These new functions should replace the old ones in the long
> term.
>
These seem to be less flexible in the long term. Sure, it is easier for
the backend to map to multiple page sizes if your iommu supports
arbitrary power-of-two page sizes, but we should make the APIs easier
for the callers, not the backend.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2010-02-07 9:39 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-28 11:37 [PATCH 0/11] Large Page Support for IOMMU-API and KVM Joerg Roedel
2010-01-28 11:37 ` [PATCH 01/11] iommu-api: Rename ->{un}map function pointers to ->{un}map_range Joerg Roedel
2010-01-28 11:37 ` [PATCH 02/11] iommu-api: Add iommu_map and iommu_unmap functions Joerg Roedel
2010-02-07 9:38 ` Avi Kivity [this message]
2010-02-07 10:50 ` Joerg Roedel
2010-02-07 10:52 ` Avi Kivity
2010-01-28 11:37 ` [PATCH 03/11] iommu-api: Add ->{un}map callbacks to iommu_ops Joerg Roedel
2010-01-28 11:37 ` [PATCH 04/11] VT-d: Change {un}map_range functions to implement {un}map interface Joerg Roedel
2010-01-28 20:59 ` David Woodhouse
2010-01-29 9:05 ` Joerg Roedel
2010-02-01 14:16 ` [PATCH 04/11 v2] " Joerg Roedel
2010-02-05 11:00 ` Joerg Roedel
2010-01-28 11:37 ` [PATCH 05/11] kvm: Introduce kvm_host_page_size Joerg Roedel
2010-02-07 12:09 ` Avi Kivity
2010-02-07 14:13 ` Joerg Roedel
2010-01-28 11:37 ` [PATCH 06/11] kvm: Change kvm_iommu_map_pages to map large pages Joerg Roedel
2010-01-28 22:24 ` Marcelo Tosatti
2010-01-29 9:32 ` Joerg Roedel
2010-02-01 14:18 ` Joerg Roedel
2010-02-01 19:30 ` Marcelo Tosatti
2010-02-05 11:01 ` Joerg Roedel
2010-02-07 12:22 ` Avi Kivity
2010-02-07 12:41 ` Joerg Roedel
2010-02-07 12:18 ` Avi Kivity
2010-02-07 18:41 ` Marcelo Tosatti
2010-02-08 9:24 ` Avi Kivity
2010-01-28 11:37 ` [PATCH 07/11] x86/amd-iommu: Make iommu_map_page and alloc_pte aware of page sizes Joerg Roedel
2010-01-28 11:37 ` [PATCH 08/11] x86/amd-iommu: Make iommu_unmap_page and fetch_pte " Joerg Roedel
2010-01-28 11:38 ` [PATCH 09/11] x86/amd-iommu: Make amd_iommu_iova_to_phys aware of multiple " Joerg Roedel
2010-01-28 11:38 ` [PATCH 10/11] x86/amd-iommu: Implement ->{un}map callbacks for iommu-api Joerg Roedel
2010-01-28 11:38 ` [PATCH 11/11] iommu-api: Remove iommu_{un}map_range functions Joerg Roedel
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