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[Qemu-devel] [PATCH 9/9] hw/xtensa/xtfpga: implement initrd loading
From: |
Max Filippov |
Subject: |
[Qemu-devel] [PATCH 9/9] hw/xtensa/xtfpga: implement initrd loading |
Date: |
Mon, 23 Jun 2014 20:12:56 +0400 |
Signed-off-by: Max Filippov <address@hidden>
---
hw/xtensa/xtfpga.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/hw/xtensa/xtfpga.c b/hw/xtensa/xtfpga.c
index 01825d6..a2dff5a 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;
--
1.8.1.4
- [Qemu-devel] [PATCH 0/9] target-xtensa: linux booting improvements, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 1/9] hw/xtensa: remove extraneous xtensa_ prefix from file names, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 5/9] hw/xtensa/xtfpga: refactor bootparameters filling, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 2/9] hw/xtensa: replace fprintfs with error_report, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 3/9] hw/xtensa/xtfpga: retrieve parameters from machine_opts, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 4/9] hw/xtensa/xtfpga: use symbolic constants for bootparam tags, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 7/9] hw/xtensa/xtfpga: implement uImage loading, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 8/9] hw/xtensa/xtfpga: implement DTB loading, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 6/9] hw/xtensa/xtfpga: add memory info to bootparam, Max Filippov, 2014/06/23
- [Qemu-devel] [PATCH 9/9] hw/xtensa/xtfpga: implement initrd loading,
Max Filippov <=