From: Konrad Rzeszutek Wilk <konrad@kernel.org>
To: xen-devel@lists.xenproject.org, konrad@kernel.org,
boris.ostrovsky@oracle.com, jgross@suse.com
Cc: sstabellini@kernel.org, wei.liu2@citrix.com,
martin.petersen@oracle.com, George.Dunlap@eu.citrix.com,
andrew.cooper3@citrix.com, ian.jackson@eu.citrix.com,
tim@xen.org, jbeulich@suse.com
Subject: [PATCH RFC] Add size alignment to page allocator.
Date: Tue, 29 Nov 2016 23:39:37 -0500 [thread overview]
Message-ID: <1480480779-12078-1-git-send-email-konrad.wilk@oracle.com> (raw)
Hey!
Please see the two RFC patches to add in the XENMEM_exchange hypercall
another argument to get MFNs which are size aligned.
The use case is also attached - which is to provide the framework
for dma_alloc_coherent which sets certain guarantees that were not
provided by Linux Xen-SWIOTLB leading to driver corruptions.
Thanks!
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next reply other threads:[~2016-11-30 4:39 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-30 4:39 Konrad Rzeszutek Wilk [this message]
2016-11-30 4:39 ` [PATCH RFC 1/2] xen/page_alloc: Add size_align parameter to provide MFNs which are size aligned Konrad Rzeszutek Wilk
2016-11-30 9:30 ` Jan Beulich
2016-11-30 16:42 ` Konrad Rzeszutek Wilk
2016-11-30 16:45 ` Jan Beulich
2016-11-30 4:39 ` [PATCH RFC 2/2] xen-swiotlb: Provide size aligned DMA addresses Konrad Rzeszutek Wilk
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