On 1/27/21 11:47 AM, Cornelia Huck wrote:
On Fri, 22 Jan 2021 14:27:39 +0100
Pierre Morel <pmorel@xxxxxxxxxxxxx> 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
Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
Thanks,
Pierre
--
Pierre Morel
IBM Lab Boeblingen
