On 9/15/20 5:44 AM, Cornelia Huck wrote:
On Mon, 14 Sep 2020 18:25:31 -0400
Matthew Rosato wrote:
Commit 492855939bdb ("vfio/type1: Limit DMA mappings per container")
added the ability to limit the number of memory backed DMA mappings.
However on s390x, when lazy mapping is in use, we use a ve
On Mon, 14 Sep 2020 18:25:31 -0400
Matthew Rosato wrote:
> Commit 492855939bdb ("vfio/type1: Limit DMA mappings per container")
> added the ability to limit the number of memory backed DMA mappings.
> However on s390x, when lazy mapping is in use, we use a very large
> number of concurrent mappin
On 9/14/20 6:25 PM, Matthew Rosato wrote:
Commit 492855939bdb ("vfio/type1: Limit DMA mappings per container") added
a limit to the number of concurrent DMA requests for a vfio container.
However, lazy unmapping in s390 can in fact cause quite a large number of
outstanding DMA requests to build u
Commit 492855939bdb ("vfio/type1: Limit DMA mappings per container") added
a limit to the number of concurrent DMA requests for a vfio container.
However, lazy unmapping in s390 can in fact cause quite a large number of
outstanding DMA requests to build up prior to being purged, potentially
the en
Commit 492855939bdb ("vfio/type1: Limit DMA mappings per container")
added the ability to limit the number of memory backed DMA mappings.
However on s390x, when lazy mapping is in use, we use a very large
number of concurrent mappings. Let's provide the current allowable
number of DMA mappings to
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