[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH 2/2] xen/dts: Support Linux initrd DT bindings
On Mon, 2013-09-16 at 16:20 +0100, Julien Grall wrote: > Linux uses the property linux,initrd-start and linux,initrd-end to know where > the initrd lives in memory. > > Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx> Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx> > --- > xen/common/device_tree.c | 25 +++++++++++++++++++++++++ > 1 file changed, 25 insertions(+) > > diff --git a/xen/common/device_tree.c b/xen/common/device_tree.c > index 9a16650..906f9f9 100644 > --- a/xen/common/device_tree.c > +++ b/xen/common/device_tree.c > @@ -382,6 +382,29 @@ static void __init process_multiboot_node(const void > *fdt, int node, > early_info.modules.nr_mods = nr; > } > > +static void __init process_chosen_node(const void *fdt, int node, > + const char *name, > + u32 address_cells, u32 size_cells) > +{ > + struct dt_mb_module *mod = &early_info.modules.module[MOD_INITRD]; > + u32 start, end; > + > + dt_printk("Checking for initrd in /chosen\n"); > + > + start = device_tree_get_u32(fdt, node, "linux,initrd-start", 0); > + end = device_tree_get_u32(fdt, node, "linux,initrd-end", 0); > + > + if ( !start || !end || (start >= end) ) > + return; > + > + dt_printk("Initrd 0x%x-0x%x\n", start, end); > + > + mod->start = start; > + mod->size = end - start; > + > + early_info.modules.nr_mods = MAX(MOD_INITRD, early_info.modules.nr_mods); > +} > + > static int __init early_scan_node(const void *fdt, > int node, const char *name, int depth, > u32 address_cells, u32 size_cells, > @@ -391,6 +414,8 @@ static int __init early_scan_node(const void *fdt, > process_memory_node(fdt, node, name, address_cells, size_cells); > else if ( device_tree_node_compatible(fdt, node, "xen,multiboot-module" > ) ) > process_multiboot_node(fdt, node, name, address_cells, size_cells); > + else if ( depth == 1 && device_tree_node_matches(fdt, node, "chosen") ) > + process_chosen_node(fdt, node, name, address_cells, size_cells); > > return 0; > } _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |