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authorAlexey Kardashevskiy <aik@ozlabs.ru>2019-08-29 18:52:50 +1000
committerMichael Ellerman <mpe@ellerman.id.au>2019-08-30 09:40:14 +1000
commit650ab1e370cdb61ba5c7495006f4376e02374da0 (patch)
tree99f4db55e278275d846cf9bff710114248ee9b81 /virt
parent01b7d128b5a7f0d09626c090093ff44155f347c9 (diff)
vfio/spapr_tce: Invalidate multiple TCEs at once
Invalidating a TCE cache entry for each updated TCE is quite expensive. This makes use of the new iommu_table_ops::xchg_no_kill()/tce_kill() callbacks to bring down the time spent in mapping a huge guest DMA window. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20190829085252.72370-4-aik@ozlabs.ru
Diffstat (limited to 'virt')
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