diff options
| author | Max Filippov <jcmvbkbc@gmail.com> | 2014-06-21 13:35:35 +0400 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2014-06-29 02:32:42 +0400 |
| commit | f55b32e7499b291058a0d0fd7d35b14c24791684 (patch) | |
| tree | d8562619db84f900f4b432e837aa7a606f724eab /hw/xtensa | |
| parent | 996dfe98ed6bd57290f198ca29d0d9c614b4feef (diff) | |
hw/xtensa/xtfpga: implement initrd loading
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'hw/xtensa')
| -rw-r--r-- | hw/xtensa/xtfpga.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c index 01825d61c2..a2dff5a13e 100644 --- a/hw/xtensa/xtfpga.c +++ b/hw/xtensa/xtfpga.c @@ -180,6 +180,7 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine) const char *kernel_filename = qemu_opt_get(machine_opts, "kernel"); const char *kernel_cmdline = qemu_opt_get(machine_opts, "append"); const char *dtb_filename = qemu_opt_get(machine_opts, "dtb"); + const char *initrd_filename = qemu_opt_get(machine_opts, "initrd"); int n; if (!cpu_model) { @@ -263,6 +264,9 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine) if (dtb_filename) { bp_size += get_tag_size(sizeof(uint32_t)); } + if (initrd_filename) { + bp_size += get_tag_size(sizeof(BpMemInfo)); + } /* Put kernel bootparameters to the end of that SRAM */ tagptr = (tagptr - bp_size) & ~0xff; @@ -289,6 +293,26 @@ static void lx_init(const LxBoardDesc *board, MachineState *machine) sizeof(dtb_addr), &dtb_addr); cur_lowmem = QEMU_ALIGN_UP(cur_lowmem + fdt_size, 4096); } + if (initrd_filename) { + BpMemInfo initrd_location = { 0 }; + int initrd_size = load_ramdisk(initrd_filename, cur_lowmem, + lowmem_end - cur_lowmem); + + if (initrd_size < 0) { + initrd_size = load_image_targphys(initrd_filename, + cur_lowmem, + lowmem_end - cur_lowmem); + } + if (initrd_size < 0) { + error_report("could not load initrd '%s'\n", initrd_filename); + exit(EXIT_FAILURE); + } + initrd_location.start = tswap32(cur_lowmem); + initrd_location.end = tswap32(cur_lowmem + initrd_size); + cur_tagptr = put_tag(cur_tagptr, BP_TAG_INITRD, + sizeof(initrd_location), &initrd_location); + cur_lowmem = QEMU_ALIGN_UP(cur_lowmem + initrd_size, 4096); + } cur_tagptr = put_tag(cur_tagptr, BP_TAG_LAST, 0, NULL); env->regs[2] = tagptr; |