AArch64 kernel image decompression

Marek Vasut marex at denx.de
Tue Jan 14 07:51:18 EST 2014


On Monday, January 13, 2014 at 12:42:41 PM, Arnd Bergmann wrote:
> On Monday 13 January 2014 11:29:20 bhupesh.sharma at freescale.com wrote:
> > With the u-boot bootloader also having AArch64 support now (see [1]), it
> > would make sense to add the uImage and decompressor support to the
> > AArch64 Makefile in Linux kernel as well, so that u-boot can also boot
> > uImages for AArch64 systems out-off-box.
> > 
> > [1].
> > http://git.denx.de/?p=u-boot/u-boot-arm.git;a=shortlog;h=refs/heads/aarc
> > h64
> 
> u-boot should never have to use a uImage on arm64, since it already
> supports booting a vmlinux file.

Just a side-note. The benefit of uImage (resp. please use fitImage, as it's more 
modern) is that it is protected by checksum against possible corruption. 
Besides, U-Boot can do the decompression of uImage payload, so there's no need 
to have decompressor in arm64 kernel.

Best regards,
Marek Vasut



More information about the linux-arm-kernel mailing list