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src/lib/prog_loaders: Add preload_ramstage

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This will enable preloading ramstage. By preloading the file into
cbfs_cache we reduce boot time.

BUG=b:179699789
TEST=Boot guybrush to OS and see 12ms reduction in boot time.

Signed-off-by: Raul E Rangel <rrangel@chromium.org>
Change-Id: Ibe12de806449da25bc0033b02fcb97c3384eddc1
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58982
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
This commit is contained in:
Raul E Rangel
2021-11-05 10:29:24 -06:00
committed by Raul Rangel
parent 571e7f02de
commit b25576fa63
3 changed files with 19 additions and 0 deletions
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8
src/lib/prog_loaders.c
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@ -75,7 +75,15 @@ static int load_relocatable_ramstage(struct prog *ramstage)
return rmodule_stage_load(&rmod_ram);
}
void preload_ramstage(void)
{
if (!CONFIG(CBFS_PRELOAD))
return;
printk(BIOS_DEBUG, "Preloading ramstage\n");
cbfs_preload(CONFIG_CBFS_PREFIX "/ramstage");
}
void run_ramstage(void)
{
struct prog ramstage =