Re: [kvm-unit-tests PATCH v5 2/3] s390x: define UV compatible I/O allocation

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On 1/22/21 3:12 PM, Thomas Huth wrote:
On 22/01/2021 14.27, Pierre Morel wrote:
To centralize the memory allocation for I/O we define
the alloc_io_mem/free_io_mem functions which share the I/O
memory with the host in case the guest runs with
protected virtualization.

These functions allocate on a page integral granularity to
ensure a dedicated sharing of the allocated objects.

Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx>
---
  lib/s390x/malloc_io.c | 71 +++++++++++++++++++++++++++++++++++++++++++
  lib/s390x/malloc_io.h | 45 +++++++++++++++++++++++++++
  s390x/Makefile        |  1 +
  3 files changed, 117 insertions(+)
  create mode 100644 lib/s390x/malloc_io.c
  create mode 100644 lib/s390x/malloc_io.h

Acked-by: Thomas Huth <thuth@xxxxxxxxxx>


Thanks,
Pierre

--
Pierre Morel
IBM Lab Boeblingen



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