On 06/14/2018 09:13 PM, Alexander Graf wrote:
On 14.06.18 21:01, Simon Glass wrote:
Hi Alex,
On 14 June 2018 at 12:22, Alexander Graf agraf@suse.de wrote:
We try hard to make sure that SMBIOS tables live in the lower 32bit. However, when we can not find any space at all there, we should not error out but instead just fall back to map them in the full address space instead.
Signed-off-by: Alexander Graf agraf@suse.de
lib/efi_loader/efi_smbios.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
Does that actually work? I thought the addresses in the table were always 32-bit?
There is only a single table reference which indeed is 32bit: se->struct_table_address.
That address however is unused in the EFI case usually, because the SMBIOS information is already encapsulated in a table, so there's no need to search through address space for a _DMI_ entry:
https://github.com/mirror/dmidecode/blob/master/dmidecode.c#L5122
Alex
We still have an open issue with E820 memory reservations not observed by Linux because they are not mirrored in the memory map. Could the same happen with smbios?
Regards
Heinrich