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

Pierre Morel
2021-01-27T12:43:31Z

On 1/27/21 11:47 AM, Cornelia Huck wrote:
> On Fri, 22 Jan 2021 14:27:39 +0100
> Pierre Morel <pmorel@linux.ibm.com> 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@linux.ibm.com>
>> ---
>> 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
>
> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
>

Thanks,

Pierre

--
Pierre Morel
IBM Lab Boeblingen