On Sat, Mar 25, 2017, 00:16 Andrei Borzenkov <arvidj...@gmail.com> wrote:
> 24.03.2017 21:38, Gailu Singh пишет: > > This is how it is calculated in coreboot > > > > > https://review.coreboot.org:4430/cgit/coreboot.git/tree/src/lib/cbfs.c?id=refs/heads/master#n268 > > > > ___FMAP__COREBOOT_BASE and ___FMAP__COREBOOT_SIZE are based on values > > available in fmd files (depending on 8MB/16Mb coreboot). > > > > > > #grep -r FMAP__COREBOOT_BASE src/lib/cbfs.c: size_t fmap_top = > > ___FMAP__COREBOOT_BASE + ___FMAP__COREBOOT_SIZE; > > build/fmap_config.h:#define ___FMAP__COREBOOT_BASE 0x300800 > > > > #grep -r FMAP__COREBOOT_SIZE > > src/soc/intel/baytrail/romstage/cache_as_ram.inc:#define CODE_CACHE_SIZE > > _ALIGN_UP_POW2(___FMAP__COREBOOT_SIZE) > > src/lib/cbfs.c: size_t fmap_top = ___FMAP__COREBOOT_BASE + > > ___FMAP__COREBOOT_SIZE; > > build/fmap_config.h:#define ___FMAP__COREBOOT_SIZE 0xc1d800 > > > > #cat src/mainboard/intel/leafhill/leafhill.16384.fmd > > FLASH 16M { > > SI_DESC@0x0 0x1000 > > IFWI@0x1000 0x2ff000 > > FMAP@0x300000 0x800 > > COREBOOT(CBFS)@0x300800 0xc1d800 > > UNIFIED_MRC_CACHE@0xf1e000 0x21000 { > > RECOVERY_MRC_CACHE@0x0 0x10000 > > RW_MRC_CACHE@0x10000 0x10000 > > RW_VAR_MRC_CACHE@0x20000 0x1000 > > } > > BIOS_UNUSABLE@0xf3f000 0x40000 > > DEVICE_EXTENSION@0xf7f000 0x7f000 > > UNUSED_HOLE@0xfff000 0x1000 > > } > > > > > > How does it help us? We have no idea which board grub currently runs on. > Do you suggest scanning the whole memory for "__FMAP__" signature? > I think it ends up at constant offset from the end of ROM > " > > > > > > > > > > > > On Fri, Mar 24, 2017 at 11:12 PM, Andrei Borzenkov <arvidj...@gmail.com> > > wrote: > > > >> 24.03.2017 20:32, Gailu Singh пишет: > >>>>> Could you please reference the solution for future users with the > same > >>> problem? > >>> Sure. Infect I should have detailed it without asking. Sorry for that. > >>> > >>> Solution can be referenced to following thread in coreboot mailing list > >>> that provide details of memory mapping on the board answered by Adrian > >>> > >>> https://www.coreboot.org/pipermail/coreboot/2017-March/083681.html > >>> > >> > >> Enters FMAP ... I like the > >> > >> "However, you'd have to know where the FMAP is in order to parse things" > >> > >> And how should we know this location? > >> > >> _______________________________________________ > >> Grub-devel mailing list > >> Grub-devel@gnu.org > >> https://lists.gnu.org/mailman/listinfo/grub-devel > >> > > > > > > > > _______________________________________________ > > Grub-devel mailing list > > Grub-devel@gnu.org > > https://lists.gnu.org/mailman/listinfo/grub-devel > > > > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel >
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