On Wed, 19 Aug 2020 18:23:18 +0200 Pierre Morel <pmorel@xxxxxxxxxxxxx> wrote: > If protected virtualization is active on s390, VIRTIO has retricted s/retricted/only restricted/ > access to the guest memory. > Define CONFIG_ARCH_HAS_RESTRICTED_VIRTIO_MEMORY_ACCESS and export > arch_has_restricted_virtio_memory_access to advertize VIRTIO if that's > the case, preventing a host error on access attempt. > > Signed-off-by: Pierre Morel <pmorel@xxxxxxxxxxxxx> > --- > arch/s390/Kconfig | 1 + > arch/s390/mm/init.c | 11 +++++++++++ > 2 files changed, 12 insertions(+) (...) > diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c > index 6dc7c3b60ef6..8febd73ed6ca 100644 > --- a/arch/s390/mm/init.c > +++ b/arch/s390/mm/init.c > @@ -45,6 +45,7 @@ > #include <asm/kasan.h> > #include <asm/dma-mapping.h> > #include <asm/uv.h> > +#include <linux/virtio_config.h> I don't think you need this include anymore. > > pgd_t swapper_pg_dir[PTRS_PER_PGD] __section(.bss..swapper_pg_dir); > (...) With the nit fixed, Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
