65 lines
2.1 KiB
Diff
65 lines
2.1 KiB
Diff
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From 02c5f52da7f9458c0fc41e43f181f6e9b7101b57 Mon Sep 17 00:00:00 2001
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From: Song Gao <gaosong@loongson.cn>
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Date: Fri, 26 Apr 2024 17:15:36 +0800
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Subject: [PATCH 02/78] hw/loongarch: Add load initrd
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we load initrd ramdisk after kernel_high address
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Signed-off-by: Song Gao <gaosong@loongson.cn>
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Reviewed-by: Bibo Mao <maobibo@loongson.cn>
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Message-Id: <20240426091551.2397867-3-gaosong@loongson.cn>
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Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
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---
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hw/loongarch/boot.c | 28 +++++++++++++++++++++++++++-
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1 file changed, 27 insertions(+), 1 deletion(-)
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diff --git a/hw/loongarch/boot.c b/hw/loongarch/boot.c
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index 9feed17db3..a5135fe542 100644
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--- a/hw/loongarch/boot.c
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+++ b/hw/loongarch/boot.c
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@@ -22,7 +22,8 @@ static uint64_t cpu_loongarch_virt_to_phys(void *opaque, uint64_t addr)
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static int64_t load_kernel_info(struct loongarch_boot_info *info)
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{
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- uint64_t kernel_entry, kernel_low, kernel_high;
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+ uint64_t kernel_entry, kernel_low, kernel_high, initrd_size;
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+ ram_addr_t initrd_offset;
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ssize_t kernel_size;
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kernel_size = load_elf(info->kernel_filename, NULL,
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@@ -37,6 +38,31 @@ static int64_t load_kernel_info(struct loongarch_boot_info *info)
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load_elf_strerror(kernel_size));
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exit(1);
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}
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+
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+ if (info->initrd_filename) {
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+ initrd_size = get_image_size(info->initrd_filename);
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+ if (initrd_size > 0) {
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+ initrd_offset = ROUND_UP(kernel_high + 4 * kernel_size, 64 * KiB);
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+
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+ if (initrd_offset + initrd_size > info->ram_size) {
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+ error_report("memory too small for initial ram disk '%s'",
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+ info->initrd_filename);
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+ exit(1);
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+ }
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+
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+ initrd_size = load_image_targphys(info->initrd_filename, initrd_offset,
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+ info->ram_size - initrd_offset);
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+ }
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+
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+ if (initrd_size == (target_ulong)-1) {
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+ error_report("could not load initial ram disk '%s'",
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+ info->initrd_filename);
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+ exit(1);
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+ }
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+ } else {
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+ initrd_size = 0;
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+ }
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+
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return kernel_entry;
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}
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--
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2.39.1
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