devs/foxbox
1
0
Fork 0
forked from len0rd/rockbox
Code Pull requests Activity

multiboot: Refactor boot data validation, add version numbers

Browse source 
Instead of verifying the CRC before every access of the boot data,
verify the CRC once at startup and set a flag to indicate the boot
data is valid.

Also add a framework to support multiple boot protocol versions.
Firmware declares the maximum supported protocol version using a
version byte in the boot data header. The bootloader chooses the
highest version supported by it and the firmware when deciding
what boot protocol to use.

Change-Id: I810194625dc0833f026d2a23b8d64ed467fa6aca
This commit is contained in:
Aidan MacDonald 2022-12-22 19:23:29 +00:00
parent af644e02a1
commit 6ffd42548b
11 changed files with 150 additions and 59 deletions
Download patch file Download diff file Expand all files Collapse all files

2
firmware/export/multiboot.h
View file

@ -21,7 +21,7 @@
#ifndef __MULTIBOOT_H__
#define __MULTIBOOT_H__
extern int write_bootdata(unsigned char* buf, int len, unsigned int boot_volume);
extern bool write_bootdata(unsigned char* buf, int len, unsigned int boot_volume);
#ifdef HAVE_MULTIBOOT
extern int get_redirect_dir(char* buf, int buffer_size, int volume,
const char* rootdir, const char* firmware);