The kernel initialization code as of boot protocol 2.10 is now reading the kernel_alignment field. With the field left the kernel attempts to align things to 4GB which is unlikely to work, so change the alignment to the kernels normal value of 16MB so newer kernels process by mkelfImage will boot.
Signed-off-by: "Eric W. Biederman" <[email protected]> Index: mkelfImage-2.7/linux-i386/convert_params.c =================================================================== --- mkelfImage-2.7.orig/linux-i386/convert_params.c +++ mkelfImage-2.7/linux-i386/convert_params.c @@ -178,7 +178,10 @@ struct parameters { uint32_t cmd_line_ptr; /* 0x228 */ /* 2.03+ */ uint32_t initrd_addr_max; /* 0x22c */ - uint8_t reserved15[0x2d0 - 0x230]; /* 0x230 */ + /* 2.05+ */ + uint32_t kernel_alignment; /* 0x230 */ + uint8_t relocateable_kernel; /* 0x234 */ + uint8_t reserved15[0x2d0 - 0x235]; /* 0x235 */ struct e820entry e820_map[E820MAX]; /* 0x2d0 */ uint8_t reserved16[688]; /* 0x550 */ @@ -1503,6 +1506,9 @@ void initialize_linux_params(struct para /* No loader flags */ info->real_mode->loader_flags = 0; + + /* Set it to 16M instead of 4G */ + info->real_mode->kernel_alignment = 16*1024*1024; /* Ramdisk address and size ... */ info->real_mode->initrd_start = 0; -- coreboot mailing list: [email protected] http://www.coreboot.org/mailman/listinfo/coreboot
