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Diffstat (limited to 'arch/x86/boot/compressed/eboot.c')
-rw-r--r--arch/x86/boot/compressed/eboot.c14
1 files changed, 11 insertions, 3 deletions
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 0cdfc0d2315e..2c14e76bb4c7 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -904,11 +904,19 @@ struct boot_params *efi_main(void *handle, efi_system_table_t *_table)
memset(boot_params, 0x0, 0x4000);
- /* Copy first two sectors to boot_params */
- memcpy(boot_params, image->image_base, 1024);
-
hdr = &boot_params->hdr;
+ /* Copy the second sector to boot_params */
+ memcpy(&hdr->jump, image->image_base + 512, 512);
+
+ /*
+ * Fill out some of the header fields ourselves because the
+ * EFI firmware loader doesn't load the first sector.
+ */
+ hdr->root_flags = 1;
+ hdr->vid_mode = 0xffff;
+ hdr->boot_flag = 0xAA55;
+
/*
* The EFI firmware loader could have placed the kernel image
* anywhere in memory, but the kernel has various restrictions