From 4c6d3a4b732732eb20bfb0fc9d857abaa4c41c88 Mon Sep 17 00:00:00 2001 From: Sean Nelson Date: Wed, 11 Sep 2013 23:35:03 +0000 Subject: Add an internal DMI decoder Previously we had to rely on dmidecode to decode the DMI/SMBIOS table. This patch integrates a DMI decoder into flashrom. The old behavior of calling dmidecode can be brought back by using CONFIG_INTERNAL_DMI=no. Significant portions of this patch were taken from dmidecode, hence add its authors to the copyright notice (dmidecode is also GPL2+). We do a few things differently though. First of all we do more bounds checking to prevent accessing unmapped memory. We do not support disovery via EFI (yet), but memory scanning only. We handle the chassis-type lock bit correctly which dmidecode did not for a long while. The API to the rest of flashrom remains stable, but the output changes slightly. To share as much code as possible (which actually is not much), i have added dmi_fill methods that get called in dmi_init. They are reponsible to fill the dmi_strings array and setting the is_laptop variable. After it is called, dmi_init prints all dmi_strings. Previously the strings were printed in the order they were discovered, followed by the chassis-type, which is now output earlier (in dmi_fill). Because DJGPP does not support strnlen a simple implementation was added for it. This is still only available on x86; actually it is not even compiled in for other architectures at all anymore. Corresponding to flashrom svn r1735. Signed-off-by: Sean Nelson Signed-off-by: Stefan Tauner Tested-by: Maciej Pijanka Tested-by: Idwer Vollering Acked-by: Stefan Tauner --- physmap.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'physmap.c') diff --git a/physmap.c b/physmap.c index 71d984461..9cac86858 100644 --- a/physmap.c +++ b/physmap.c @@ -328,6 +328,11 @@ void *rphysmap(const char *descr, uintptr_t phys_addr, size_t len) return physmap_common(descr, phys_addr, len, PHYSM_NOFAIL, PHYSM_RW, PHYSM_CLEANUP, PHYSM_ROUND); } +void *physmap_round(const char *descr, uintptr_t phys_addr, size_t len) +{ + return physmap_common(descr, phys_addr, len, PHYSM_NOFAIL, PHYSM_RW, PHYSM_NOCLEANUP, PHYSM_ROUND); +} + void *physmap_try_ro(const char *descr, uintptr_t phys_addr, size_t len) { return physmap_common(descr, phys_addr, len, PHYSM_MAYFAIL, PHYSM_RO, PHYSM_NOCLEANUP, PHYSM_EXACT); -- cgit v1.2.3