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Re: [Xen-devel] [PATCH v4 3/4] iommu: elide flushing for higher order map/unmap operations
- To: Paul Durrant <Paul.Durrant@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Julien Grall <julien.grall@xxxxxxx>
- Date: Wed, 19 Dec 2018 15:38:07 +0000
- Cc: Kevin Tian <kevin.tian@xxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Andrew Cooper <Andrew.Cooper3@xxxxxxxxxx>, "Tim \(Xen.org\)" <tim@xxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxx>, Suravee Suthikulpanit <suravee.suthikulpanit@xxxxxxx>, Ian Jackson <Ian.Jackson@xxxxxxxxxx>, Brian Woods <brian.woods@xxxxxxx>, Roger Pau Monne <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 19 Dec 2018 15:38:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
Hi,
On 17/12/2018 09:08, Paul Durrant wrote:
@@ -345,7 +352,26 @@ int iommu_legacy_map(struct domain *d, dfn_t dfn,
mfn_t mfn,
return rc;
}
-int iommu_legacy_unmap(struct domain *d, dfn_t dfn, unsigned int
page_order)
+int iommu_legacy_map(struct domain *d, dfn_t dfn, mfn_t mfn,
+ unsigned int page_order, unsigned int flags)
+{
+ unsigned int flush_flags = 0;
newline here.
Ah yes.
Actually, hang on... no. Why would I need a newline between two stack variable
initializations?
Yes. Sorry I misread the code.
Cheers,
--
Julien Grall
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