diff options
| author | Juergen Gross <jgross@suse.com> | 2022-06-22 09:38:36 +0300 |
|---|---|---|
| committer | Juergen Gross <jgross@suse.com> | 2022-08-01 08:42:49 +0300 |
| commit | a603002eea8213eec5211be5a85db8340aea06d0 (patch) | |
| tree | 5154e240ad4f487a866e74a055671d66b8b12b6d /include/xen/xen.h | |
| parent | 8441dac05e7f346abc4f63a15d4af0adeabfaa9b (diff) | |
| download | linux-a603002eea8213eec5211be5a85db8340aea06d0.tar.xz | |
virtio: replace restricted mem access flag with callback
Instead of having a global flag to require restricted memory access
for all virtio devices, introduce a callback which can select that
requirement on a per-device basis.
For convenience add a common function returning always true, which can
be used for use cases like SEV.
Per default use a callback always returning false.
As the callback needs to be set in early init code already, add a
virtio anchor which is builtin in case virtio is enabled.
Signed-off-by: Juergen Gross <jgross@suse.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/20220622063838.8854-2-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
Diffstat (limited to 'include/xen/xen.h')
| -rw-r--r-- | include/xen/xen.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/xen/xen.h b/include/xen/xen.h index 0780a81e140d..ac5a144c6a65 100644 --- a/include/xen/xen.h +++ b/include/xen/xen.h @@ -52,12 +52,12 @@ bool xen_biovec_phys_mergeable(const struct bio_vec *vec1, extern u64 xen_saved_max_mem_size; #endif -#include <linux/platform-feature.h> +#include <linux/virtio_anchor.h> static inline void xen_set_restricted_virtio_memory_access(void) { if (IS_ENABLED(CONFIG_XEN_VIRTIO) && xen_domain()) - platform_set(PLATFORM_VIRTIO_RESTRICTED_MEM_ACCESS); + virtio_set_mem_acc_cb(virtio_require_restricted_mem_acc); } #ifdef CONFIG_XEN_UNPOPULATED_ALLOC |