make_virtio_mmio_node() creates the DT node for simple MMIO devices currently, i.e. the ones that don't require any additional properties.
In order to allow using it for other complex device types, split the functionality into two, one where the fdt node isn't closed and the other one to create a simple DT node.
Signed-off-by: Viresh Kumar viresh.kumar@linaro.org --- tools/libs/light/libxl_arm.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/tools/libs/light/libxl_arm.c b/tools/libs/light/libxl_arm.c index 2f64b9f0ebee..6a8c4d042bd9 100644 --- a/tools/libs/light/libxl_arm.c +++ b/tools/libs/light/libxl_arm.c @@ -900,9 +900,8 @@ static int make_xen_iommu_node(libxl__gc *gc, void *fdt) return 0; }
-static int make_virtio_mmio_node(libxl__gc *gc, void *fdt, - uint64_t base, uint32_t irq, - uint32_t backend_domid) +static int make_virtio_mmio_node_common(libxl__gc *gc, void *fdt, uint64_t base, + uint32_t irq) { int res; gic_interrupt intr; @@ -922,7 +921,15 @@ static int make_virtio_mmio_node(libxl__gc *gc, void *fdt, res = fdt_property_interrupts(gc, fdt, &intr, 1); if (res) return res;
- res = fdt_property(fdt, "dma-coherent", NULL, 0); + return fdt_property(fdt, "dma-coherent", NULL, 0); +} + +static int make_virtio_mmio_node_simple(libxl__gc *gc, void *fdt, uint64_t base, + uint32_t irq, uint32_t backend_domid) +{ + int res; + + res = make_virtio_mmio_node_common(gc, fdt, base, irq); if (res) return res;
if (backend_domid != LIBXL_TOOLSTACK_DOMID) { @@ -935,10 +942,7 @@ static int make_virtio_mmio_node(libxl__gc *gc, void *fdt, if (res) return res; }
- res = fdt_end_node(fdt); - if (res) return res; - - return 0; + return fdt_end_node(fdt); }
static const struct arch_info *get_arch_info(libxl__gc *gc, @@ -1261,8 +1265,8 @@ static int libxl__prepare_dtb(libxl__gc *gc, libxl_domain_config *d_config, iommu_created = true; }
- FDT( make_virtio_mmio_node(gc, fdt, disk->base, disk->irq, - disk->backend_domid) ); + FDT( make_virtio_mmio_node_simple(gc, fdt, disk->base, + disk->irq, disk->backend_domid) ); } }