diff options
Diffstat (limited to 'arch/arm/xen/mm.c')
| -rw-r--r-- | arch/arm/xen/mm.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index 467fa225c3d0..a7e54a087b80 100644 --- a/arch/arm/xen/mm.c +++ b/arch/arm/xen/mm.c @@ -138,9 +138,15 @@ void xen_destroy_contiguous_region(phys_addr_t pstart, unsigned int order) static int __init xen_mm_init(void) { struct gnttab_cache_flush cflush; - if (!xen_initial_domain()) + int rc; + + if (!xen_swiotlb_detect()) return 0; - xen_swiotlb_init(1, false); + + rc = xen_swiotlb_init(); + /* we can work with the default swiotlb */ + if (rc < 0 && rc != -EEXIST) + return rc; cflush.op = 0; cflush.a.dev_bus_addr = 0; |