we load initrd ramdisk after kernel_high address
Signed-off-by: Song Gao <gaosong@loongson.cn>
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Message-Id: <20240426091551.2397867-3-gaosong@loongson.cn>
---
hw/loongarch/boot.c | 29 ++++++++++++++++++++++++++++-
1 file changed, 28 insertions(+), 1 deletion(-)
diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c
index 9feed17db3..a9522d6912 100644
--- a/hw/loongarch/boot.c
+++ b/hw/loongarch/boot.c
@@ -22,7 +22,8 @@ static uint64_t cpu_loongarch_virt_to_phys(void
*opaque, uint64_t addr)
static int64_t load_kernel_info(struct loongarch_boot_info *info)
{
- uint64_t kernel_entry, kernel_low, kernel_high;
+ uint64_t kernel_entry, kernel_low, kernel_high, initrd_size;
+ ram_addr_t initrd_offset;
ssize_t kernel_size;
kernel_size = load_elf(info->kernel_filename, NULL,
@@ -37,6 +38,32 @@ static int64_t load_kernel_info(struct
loongarch_boot_info *info)
load_elf_strerror(kernel_size));
exit(1);
}
+
+ if (info->initrd_filename) {
+ initrd_size = get_image_size(info->initrd_filename);
+ if (initrd_size > 0) {
+ initrd_offset = ROUND_UP(kernel_high + 4 * kernel_size,
64 * KiB);
+
+ if (initrd_offset + initrd_size > info->ram_size) {
+ error_report("memory too small for initial ram disk
'%s'",
+ info->initrd_filename);
+ exit(1);
+ }
+
+ initrd_size = load_image_targphys(info->initrd_filename,
initrd_offset,
+ info->ram_size -
initrd_offset);
+ }
+
+ if (initrd_size == (target_ulong)-1) {
+ error_report("could not load initial ram disk '%s'",
+ info->initrd_filename);
+ exit(1);
+ }
+ } else {
+ error_report("Need initrd!");
+ exit(1);
+ }
+
return kernel_entry;
}