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| author | Stefano Stabellini | 2014-11-21 12:08:39 +0100 |
|---|---|---|
| committer | David Vrabel | 2014-12-04 13:41:54 +0100 |
| commit | da095a996090a412c3b6292c7a8680661dca157d (patch) | |
| tree | 02247bce77b50867c227384ed023bab81ffe77c4 /drivers/xen | |
| parent | xen/arm/arm64: introduce xen_arch_need_swiotlb (diff) | |
| download | kernel-qcow2-linux-da095a996090a412c3b6292c7a8680661dca157d.tar.gz kernel-qcow2-linux-da095a996090a412c3b6292c7a8680661dca157d.tar.xz kernel-qcow2-linux-da095a996090a412c3b6292c7a8680661dca157d.zip | |
xen/arm: introduce GNTTABOP_cache_flush
Introduce support for new hypercall GNTTABOP_cache_flush.
Use it to perform cache flashing on pages used for dma when necessary.
If GNTTABOP_cache_flush is supported by the hypervisor, we don't need to
bounce dma map operations that involve foreign grants and non-coherent
devices.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Diffstat (limited to 'drivers/xen')
0 files changed, 0 insertions, 0 deletions