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[Qemu-ppc] [PATCH v1] virtex_ml507: Add support for loading initrd image
From: |
Edgar E. Iglesias |
Subject: |
[Qemu-ppc] [PATCH v1] virtex_ml507: Add support for loading initrd images |
Date: |
Mon, 3 Feb 2014 15:20:20 +0000 |
From: "Edgar E. Iglesias" <address@hidden>
Signed-off-by: Edgar E. Iglesias <address@hidden>
---
hw/ppc/virtex_ml507.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/hw/ppc/virtex_ml507.c b/hw/ppc/virtex_ml507.c
index bdb057e..19083d4 100644
--- a/hw/ppc/virtex_ml507.c
+++ b/hw/ppc/virtex_ml507.c
@@ -166,6 +166,19 @@ static int xilinx_load_device_tree(hwaddr addr,
if (!fdt) {
return 0;
}
+
+ r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
+ initrd_base);
+ if (r < 0) {
+ error_report("couldn't set /chosen/linux,initrd-start'");
+ }
+
+ r = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
+ (initrd_base + initrd_size));
+ if (r < 0) {
+ error_report("couldn't set /chosen/linux,initrd-end'");
+ }
+
r = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs", kernel_cmdline);
if (r < 0)
fprintf(stderr, "couldn't set /chosen/bootargs\n");
@@ -179,6 +192,8 @@ static void virtex_init(QEMUMachineInitArgs *args)
const char *cpu_model = args->cpu_model;
const char *kernel_filename = args->kernel_filename;
const char *kernel_cmdline = args->kernel_cmdline;
+ hwaddr initrd_base = 0;
+ int initrd_size = 0;
MemoryRegion *address_space_mem = get_system_memory();
DeviceState *dev;
PowerPCCPU *cpu;
@@ -242,10 +257,27 @@ static void virtex_init(QEMUMachineInitArgs *args)
boot_info.ima_size = kernel_size;
+ /* Load initrd. */
+ if (args->initrd_filename) {
+ initrd_base = high = ROUND_UP(high, 4);
+ initrd_size = load_image_targphys(args->initrd_filename,
+ high, ram_size - high);
+
+ if (initrd_size < 0) {
+ error_report("couldn't load ram disk '%s'\n",
+ args->initrd_filename);
+ exit(1);
+ }
+ high = ROUND_UP(high + initrd_size, 4);
+ }
+
/* Provide a device-tree. */
boot_info.fdt = high + (8192 * 2);
boot_info.fdt &= ~8191;
- xilinx_load_device_tree(boot_info.fdt, ram_size, 0, 0, kernel_cmdline);
+
+ xilinx_load_device_tree(boot_info.fdt, ram_size,
+ initrd_base, initrd_size,
+ kernel_cmdline);
}
env->load_info = &boot_info;
}
--
1.8.3.2
- [Qemu-ppc] [PATCH v1] virtex_ml507: Add support for loading initrd images,
Edgar E. Iglesias <=