Werner Zeh (werner.zeh@siemens.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/12967
-gerrit
commit ce22707d27683e6cc6d557bfc291fb05f4a00adc Author: Werner Zeh werner.zeh@siemens.com Date: Thu Jan 14 13:22:37 2016 +0100
cbfstool: Add attributes for position and alignment constraints.
Add functionality to cbfstool to generate file attributes for position and alignment constraints. This new feature can be activated with the -g option and will generate, once the option has been enabled, additional attributes for the files where position, xip or alignment was specified.
Change-Id: I3db9bd2c20d26b168bc7f320362ed41be349ae3a Signed-off-by: Werner Zeh werner.zeh@siemens.com --- util/cbfstool/cbfs.h | 14 ++++++++++++++ util/cbfstool/cbfstool.c | 47 +++++++++++++++++++++++++++++++++++++++++------ 2 files changed, 55 insertions(+), 6 deletions(-)
diff --git a/util/cbfstool/cbfs.h b/util/cbfstool/cbfs.h index d77504a..ac4a41c 100644 --- a/util/cbfstool/cbfs.h +++ b/util/cbfstool/cbfs.h @@ -108,6 +108,8 @@ struct cbfs_file_attribute { #define CBFS_FILE_ATTR_TAG_UNUSED2 0xffffffff #define CBFS_FILE_ATTR_TAG_COMPRESSION 0x42435a4c #define CBFS_FILE_ATTR_TAG_HASH 0x68736148 +#define CBFS_FILE_ATTR_TAG_POSITION 0x42435350 /* PSCB */ +#define CBFS_FILE_ATTR_TAG_ALIGNMENT 0x42434c41 /* ALCB */
struct cbfs_file_attr_compression { uint32_t tag; @@ -125,6 +127,18 @@ struct cbfs_file_attr_hash { uint8_t hash_data[]; } __PACKED;
+struct cbfs_file_attr_position { + uint32_t tag; + uint32_t len; + uint32_t position; +} __PACKED; + +struct cbfs_file_attr_align { + uint32_t tag; + uint32_t len; + uint32_t alignment; +} __PACKED; + struct cbfs_stage { uint32_t compression; uint64_t entry; diff --git a/util/cbfstool/cbfstool.c b/util/cbfstool/cbfstool.c index 62edd4b..ec38504 100644 --- a/util/cbfstool/cbfstool.c +++ b/util/cbfstool/cbfstool.c @@ -70,6 +70,7 @@ static struct param { bool fill_partial_downward; bool show_immutable; bool stage_xip; + bool autogen_attr; int fit_empty_entries; enum comp_algo compression; enum vb2_hash_algorithm hash; @@ -349,6 +350,31 @@ static int cbfs_add_component(const char *filename, return 1; }
+ if (param.autogen_attr) { + /* Add position attribute if assigned */ + if (param.baseaddress_assigned || param.stage_xip) { + struct cbfs_file_attr_position *attrs = + (struct cbfs_file_attr_position *) + cbfs_add_file_attr(header, + CBFS_FILE_ATTR_TAG_POSITION, + sizeof(struct cbfs_file_attr_position)); + if (attrs == NULL) + return -1; + attrs->position = htonl(offset); + } + /* Add alignment attribute if used */ + if (param.alignment) { + struct cbfs_file_attr_align *attrs = + (struct cbfs_file_attr_align *) + cbfs_add_file_attr(header, + CBFS_FILE_ATTR_TAG_ALIGNMENT, + sizeof(struct cbfs_file_attr_align)); + if (attrs == NULL) + return -1; + attrs->alignment = htonl(param.alignment); + } + } + if (IS_TOP_ALIGNED_ADDRESS(offset)) offset = convert_to_from_top_aligned(param.image_region, -offset); @@ -536,6 +562,8 @@ static int cbfs_add(void) if (param.alignment) { /* CBFS compression file attribute is unconditionally added. */ size_t metadata_sz = sizeof(struct cbfs_file_attr_compression); + if (param.autogen_attr) + metadata_sz += sizeof(struct cbfs_file_attr_align); if (do_cbfs_locate(&address, metadata_sz)) return 1; param.baseaddress = address; @@ -999,12 +1027,14 @@ static int cbfs_copy(void) }
static const struct command commands[] = { - {"add", "H:r:f:n:t:c:b:a:vA:h?", cbfs_add, true, true}, - {"add-flat-binary", "H:r:f:n:l:e:c:b:vA:h?", cbfs_add_flat_binary, true, - true}, - {"add-payload", "H:r:f:n:t:c:b:C:I:vA:h?", cbfs_add_payload, true, true}, - {"add-stage", "a:H:r:f:n:t:c:b:P:S:yvA:h?", cbfs_add_stage, true, true}, - {"add-int", "H:r:i:n:b:vh?", cbfs_add_integer, true, true}, + {"add", "H:r:f:n:t:c:b:a:vA:gh?", cbfs_add, true, true}, + {"add-flat-binary", "H:r:f:n:l:e:c:b:vA:gh?", cbfs_add_flat_binary, + true, true}, + {"add-payload", "H:r:f:n:t:c:b:C:I:vA:gh?", cbfs_add_payload, + true, true}, + {"add-stage", "a:H:r:f:n:t:c:b:P:S:yvA:gh?", cbfs_add_stage, + true, true}, + {"add-int", "H:r:i:n:b:vgh?", cbfs_add_integer, true, true}, {"add-master-header", "H:r:vh?", cbfs_add_master_header, true, true}, {"copy", "r:R:h?", cbfs_copy, true, true}, {"create", "M:r:s:B:b:H:o:m:vh?", cbfs_create, true, true}, @@ -1049,6 +1079,7 @@ static struct option long_options[] = { {"verbose", no_argument, 0, 'v' }, {"with-readonly", no_argument, 0, 'w' }, {"xip", no_argument, 0, 'y' }, + {"gen-attribute", no_argument, 0, 'g' }, {NULL, 0, 0, 0 } };
@@ -1113,6 +1144,7 @@ static void usage(char *name) " -T Output top-aligned memory address\n" " -u Accept short data; fill upward/from bottom\n" " -d Accept short data; fill downward/from top\n" + " -g Generate potition and alignment arguments\n" " -v Provide verbose output\n" " -h Display this help message\n\n" "COMMANDs:\n" @@ -1347,6 +1379,9 @@ int main(int argc, char **argv) case 'y': param.stage_xip = true; break; + case 'g': + param.autogen_attr = true; + break; case 'h': case '?': usage(argv[0]);