aboutsummaryrefslogtreecommitdiff
path: root/hw
diff options
context:
space:
mode:
authorMax Filippov <jcmvbkbc@gmail.com>2014-06-21 13:35:35 +0400
committerMax Filippov <jcmvbkbc@gmail.com>2014-06-29 02:32:42 +0400
commitf55b32e7499b291058a0d0fd7d35b14c24791684 (patch)
treed8562619db84f900f4b432e837aa7a606f724eab /hw
parent996dfe98ed6bd57290f198ca29d0d9c614b4feef (diff)
hw/xtensa/xtfpga: implement initrd loading
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Diffstat (limited to 'hw')
-rw-r--r--hw/xtensa/xtfpga.c24
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;