It was indeed the ROM mapping issue. solved now. Thank you so much Andrei. On Fri, Mar 17, 2017 at 7:29 PM, Gailu Singh <gail...@gmail.com> wrote:
> >>Any chance ROM is mapped somewhere else in your case? > I need to check, this may be a case. > > On Fri, Mar 17, 2017 at 7:16 PM, Andrei Borzenkov <arvidj...@gmail.com> > wrote: > >> On Fri, Mar 17, 2017 at 4:24 PM, Gailu Singh <gail...@gmail.com> wrote: >> > @Vladimir >> > I do not have serial console (board has memory mapped uart not support >> in >> > grub) to capture memory details. Also on graphics console I can not give >> > commands from usb keyboard to dump memory because USB port on board >> are 3.0 >> > and USB 3.0 is not supported in Grub. Any other thing I could try? >> > >> > @Andrei >> > What is the expected address supposed to be printed for successful >> > identification of CBFS. >> > >> >> GRUB reads 4 bytes at offset 0xffffffc0. All ones likely means that >> this address simply is not valid. >> >> According to https://github.com/mrnuke/coreboot/blob/master/documentation >> /cbfs.txt, >> "A pointer to the location of the header will be located at offset -4 >> from the end of the ROM. This translates to address 0xFFFFFFFC on a >> normal x86 system." Any chance ROM is mapped somewhere else in your >> case? >> >> > I am building coreboot image myself and stitching with other intel >> firmware >> > as documented by Intel. >> > >> > On Fri, Mar 17, 2017 at 12:45 PM, Vladimir 'phcoder' Serbinenko >> > <phco...@gmail.com> wrote: >> >> >> >> >> >> >> >> On Thu, Mar 16, 2017, 22:30 Gailu Singh <gail...@gmail.com> wrote: >> >>> >> >>> Please find coreboot image attached. Zipped it to reduce size >> >> >> >> This image is actually fine and is read correctly by fstest. Apparently >> >> for some reason reading image at the end of 4GiB doesn't work. Can you >> try >> >> dumping last 8M before 4G mark from /dev/mem ? >> >>> >> >>> >> >>> On Fri, Mar 17, 2017 at 1:19 AM, Vladimir 'phcoder' Serbinenko >> >>> <phco...@gmail.com> wrote: >> >>>> >> >>>> >> >>>> >> >>>> On Thu, Mar 16, 2017, 12:43 Gailu Singh <gail...@gmail.com> wrote: >> >>>>> >> >>>>> >>Try insmod cbfs >> >>>>> >> >>>>> >> >>>>> Trieed, it does not help. BTW cbfs is already included in my grub >> elf >> >>>>> image so I don't think I need to do insmod. >> >>>>> >> >>>>> ./grub-mkstandalone --grub-mkimage=./grub-mkimage -O i386-coreboot >> -o >> >>>>> default_payload.elf --modules='ls ahci pata ehci uhci ohci >> usb_keyboard >> >>>>> usbms part_msdos ext2 fat at_keyboard part_gpt usbserial_usbdebug >> cbfs' >> >>>>> --install-modules='linux search configfile normal cbtime cbls memrw >> iorw >> >>>>> minicmd lsmmap lspci halt reboot hexdump pcidump regexp setpci >> lsacpi chain >> >>>>> test serial multiboot cbmemc linux16 gzio echo help syslinuxcfg xnu >> affs afs >> >>>>> bfs btrfs cbfs cpio cpio_be exfat ext2 fat hfs hfsplus iso9660 jfs >> minix >> >>>>> minix2 minix2_be minix3 minix3_be minix_be newc nilfs2 ntfs odc >> procfs >> >>>>> reiserfs romfs sfs squash4 tar udf ufs1 ufs1_be ufs2 xfs zfs >> password_pbkdf2 >> >>>>> ' --fonts= --themes= --locales= -d grub-core/ >> >>>>> /boot/grub/grub.cfg=./coreboot.cfg >> >>>>> >> >>>>> This must be something else. AFAIK memdisk itself resides in CBFS, >> >>>>> Strangely ls comman shows memdisk but not cbfsdisk >> >>>> >> >>>> Please share your coreboot image. >> >>>>> >> >>>>> >> >>>>> >> >>>>> On Fri, Mar 17, 2017 at 12:52 AM, Vladimir 'phcoder' Serbinenko >> >>>>> <phco...@gmail.com> wrote: >> >>>>>> >> >>>>>> >> >>>>>> >> >>>>>> On Thu, Mar 16, 2017, 12:18 Gailu Singh <gail...@gmail.com> wrote: >> >>>>>>> >> >>>>>>> Hi Experts, >> >>>>>>> >> >>>>>>> I am using grub2 with coreboot and configured with >> >>>>>>> --with-platform=coreboot. >> >>>>>>> >> >>>>>>> I am able to load grub2 from coreboot. However when I run ls >> command, >> >>>>>>> I do not see cbfsdisk. ls only shows >> >>>>>>> >> >>>>>>> (memdisk) (ahci0) (ahci0,msdos1) (ahci0,msdos2) >> >>>>>>> >> >>>>>>> I have added file in the cbfs as follows and need to access it but >> >>>>>>> when I try (cbfsdisk)/myfile I get error disk 'cbfsdisk' not >> found. >> >>>>>>> >> >>>>>>> build/util/cbfstool/cbfstool build/coreboot.rom add -f myfile -n >> >>>>>>> myfile -t raw >> >>>>>>> >> >>>>>>> Any idea how to access myfile on cbfsdisk? >> >>>>>> >> >>>>>> Try insmod cbfs >> >>>>>>> >> >>>>>>> >> >>>>>>> Thanks. >> >>>>>>> _______________________________________________ >> >>>>>>> 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 >> >>>> >> >>>> >> >>>> _______________________________________________ >> >>>> 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 >> >> >> > >> > >> > _______________________________________________ >> > 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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