Re: [coreboot] Regarding offset adjustment for building coreboot.

[Nico Huber]

Hi Patrick,

On 08.04.2016 09:57, Patrick Georgi via coreboot wrote:
> 2016-04-08 9:51 GMT+02:00 rajashaker Goud :
> > I have build coreboot with release payload.
>
> [ stripped to list only the empty regions]
> > Name                           Offset     Type         Size
> > (empty)                        0xd8380    null         48152
> > (empty)                        0x105840   null         1880
> > (empty)                        0x10e000   null         8088
> > (empty)                        0x150000   null         311192
> > (empty)                        0x1e8c00   null         58200
> > (empty)                        0x1ff9c0   null         536
>
> That makes approx. 450K of free space in your image
> > but when i build debug am facing space issue:
> > E: Could not add [payloads/external/uefi/UEFIPAYLOAD.fd, 886346 bytes (865
> > KB)@0x0]; too big?
>
> This is indicates a 865K image. How is that supposed to fit?

you also stripped:

fallback/payload               0x1b140    payload      769955

I guess he means that a fresh build with a bigger (865KiB instead of
752KiB) payload fails.

Nico

Regarding offset adjustment for building coreboot.

[Patrick Georgi]

2016-04-08 11:17 GMT+02:00 Nico Huber :
> you also stripped:
>
> fallback/payload               0x1b140    payload      769955
>
> I guess he means that a fresh build with a bigger (865KiB instead of
> 752KiB) payload fails.

Of course you're right. I misunderstood the original issue.

It's hard to tell how locked down various files are. There's at least
some alignment going on for  cpu_microcode_blob.bin, mrc.cache,
uefi_nvs.bin and fsp.bin, but there may be more to it.

Tweaking -position and -align values for mrc.cache and uefi_nvs.bin
should provide enough space for a larger payload.
Given that uefi_nvs.bin is not mentioned in current master, I have no
idea how that came to be.

Patrick