Juergen Gross 251e90e7e3 xen: don't require virtio with grants for non-PV guests ... Commit fa1f57421e ("xen/virtio: Enable restricted memory access using Xen grant mappings") introduced a new requirement for using virtio devices: the backend now needs to support the VIRTIO_F_ACCESS_PLATFORM feature. This is an undue requirement for non-PV guests, as those can be operated with existing backends without any problem, as long as those backends are running in dom0. Per default allow virtio devices without grant support for non-PV guests. On Arm require VIRTIO_F_ACCESS_PLATFORM for devices having been listed in the device tree to use grants. Add a new config item to always force use of grants for virtio. Fixes: fa1f57421e ("xen/virtio: Enable restricted memory access using Xen grant mappings") Reported-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Juergen Gross <jgross@suse.com> Reviewed-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> # Arm64 guest using Xen Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> Link: https://lore.kernel.org/r/20220622063838.8854-4-jgross@suse.com Signed-off-by: Juergen Gross <jgross@suse.com>		2022-08-01 07:43:03 +02:00
..
enlighten.c	xen: don't require virtio with grants for non-PV guests	2022-08-01 07:43:03 +02:00
grant-table.c
hypercall.S	xen: allow pv-only hypercalls only with CONFIG_XEN_PV	2021-11-02 08:11:01 -05:00
Makefile
mm.c	swiotlb-xen: fix DMA_ATTR_NO_KERNEL_MAPPING on arm	2022-05-11 19:48:32 +02:00
p2m.c	xen/arm: Fix race in RB-tree based P2M accounting	2022-07-01 10:02:03 +02:00