Messages in this thread |  | | Date | Sat, 23 Apr 2022 11:10:07 +0200 | Subject | Re: [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen | From | Juergen Gross <> |
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On 23.04.22 09:05, Oleksandr wrote: > > On 23.04.22 02:00, Stefano Stabellini wrote: > > Hello Stefano > > >> On Fri, 22 Apr 2022, Oleksandr Tyshchenko wrote: >>> From: Juergen Gross <jgross@suse.com> >>> >>> Introduce Xen grant DMA-mapping layer which contains special DMA-mapping >>> routines for providing grant references as DMA addresses to be used by >>> frontends (e.g. virtio) in Xen guests. >>> >>> In order to support virtio in Xen guests add a config option XEN_VIRTIO >>> enabling the user to specify whether in all Xen guests virtio should >>> be able to access memory via Xen grant mappings only on the host side. >>> >>> As this also requires providing arch_has_restricted_virtio_memory_access >>> implementation, switch from a pure stub to a real function on Arm >>> and combine with existing implementation for the SEV guests on x86. >>> >>> Add the needed functionality by providing a special set of DMA ops >>> handling the needed grant operations for the I/O pages. >>> >>> Signed-off-by: Juergen Gross <jgross@suse.com> >>> Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> >> There are a couple of minor things that checkpatch.pl reports, > > Thank you for pointing this out, my fault. > > >> but aside >> from those the patch looks fine to me. > > good > > > The attached diff to be squashed for the new version. One thing remains: > > checkpatch.pl says regarding drivers/xen/grant-dma-ops.c: > > WARNING: added, moved or deleted file(s), does MAINTAINERS need updating? > #151: > new file mode 100644 > > > Which, I assume, this is not an issue as new file falls under XEN HYPERVISOR > INTERFACE maintainership?
Yes.
Juergen [unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature] |  |