diff options
| -rw-r--r-- | arch/x86/xen/pci-swiotlb-xen.c | 4 | ||||
| -rw-r--r-- | drivers/xen/Kconfig | 2 |
2 files changed, 5 insertions, 1 deletions
diff --git a/arch/x86/xen/pci-swiotlb-xen.c b/arch/x86/xen/pci-swiotlb-xen.c index a013ec9d0c54..be4d80a6fae9 100644 --- a/arch/x86/xen/pci-swiotlb-xen.c +++ b/arch/x86/xen/pci-swiotlb-xen.c @@ -1,6 +1,7 @@ /* Glue code to lib/swiotlb-xen.c */ #include <linux/dma-mapping.h> +#include <linux/pci.h> #include <xen/swiotlb-xen.h> #include <asm/xen/hypervisor.h> @@ -54,5 +55,8 @@ void __init pci_xen_swiotlb_init(void) if (xen_swiotlb) { xen_swiotlb_init(1); dma_ops = &xen_swiotlb_dma_ops; + + /* Make sure ACS will be enabled */ + pci_request_acs(); } } diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index 60d71e9abe9f..f70a627080e7 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -74,6 +74,6 @@ config XEN_PLATFORM_PCI config SWIOTLB_XEN def_bool y - depends on SWIOTLB + depends on PCI && SWIOTLB endmenu |