On Mon, Oct 14, 2024 at 02:19:56PM -0600, Simon Glass wrote:
Hi,
On Fri, 11 Oct 2024 at 23:47, Ilias Apalodimas ilias.apalodimas@linaro.org wrote:
Hi Tom
On Sat, 12 Oct 2024 at 04:27, Tom Rini trini@konsulko.com wrote:
On Sat, Oct 12, 2024 at 12:01:54AM +0200, Heinrich Schuchardt wrote:
Am 11. Oktober 2024 23:21:25 MESZ schrieb Simon Glass sjg@chromium.org:
The 'point of cooperation' is where U-Boot starts allowing EFI to use memory outside of the U-Boot region. Until that point, it is desirable to keep more below U-Boot free for loading images.
Reserve a small region for this purpose.
Your commit message provides no clue why this should be needed.
Yes, I hadn't realised that people didn't understand what I was getting at. Tom asked the same question on irc.
It allows us to separate the lmb allocations from the EFI allocations, so we don't need to have them both in sync. We use lmb for loading images, then EFI takes over and does what it likes, respecting the existing lmb reservations.
But, again, LMB is not for loading of images. It's for dealing with memory reservations of various types.