diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2016-08-12 12:42:04 -0500 |
|---|---|---|
| committer | Martin Roth <martinroth@google.com> | 2016-08-19 18:17:04 +0200 |
| commit | bccaab86582957483b0b7e50ead308ed1bff815d (patch) | |
| tree | 05b35ef30784e6cd1d8507d509275d13dd91c812 /src | |
| parent | e4cc8cd00b3b39eecac604cc402b8111f8fd5657 (diff) | |
lib/fmap: provide RW region device support
Explicitly provide a RW view of an FMAP region. This is required
for platforms which have separate implementations of a RO boot
device and a RW boot device.
BUG=chrome-os-partner:56151
Change-Id: Ibafa3dc534f53a3d90487f3190c0f8a2e82858c2
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16203
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/include/fmap.h | 4 | ||||
| -rw-r--r-- | src/lib/fmap.c | 10 |
2 files changed, 14 insertions, 0 deletions
diff --git a/src/include/fmap.h b/src/include/fmap.h index 684a05c607..5834831489 100644 --- a/src/include/fmap.h +++ b/src/include/fmap.h @@ -27,6 +27,10 @@ int find_fmap_directory(struct region_device *fmrd); * 0 on success, < 0 on error. */ int fmap_locate_area_as_rdev(const char *name, struct region_device *area); +/* Just like fmap_locate_area_as_rdev(), however the region device is + * created from the RW boot device. */ +int fmap_locate_area_as_rdev_rw(const char *name, struct region_device *area); + /* Locate the named area in the fmap and fill in a region with the * offset and size of that area within the boot media. Return 0 on success, * < 0 on error. */ diff --git a/src/lib/fmap.c b/src/lib/fmap.c index bf99037f54..9602134d94 100644 --- a/src/lib/fmap.c +++ b/src/lib/fmap.c @@ -80,6 +80,16 @@ int fmap_locate_area_as_rdev(const char *name, struct region_device *area) return boot_device_ro_subregion(&ar, area); } +int fmap_locate_area_as_rdev_rw(const char *name, struct region_device *area) +{ + struct region ar; + + if (fmap_locate_area(name, &ar)) + return -1; + + return boot_device_rw_subregion(&ar, area); +} + int fmap_locate_area(const char *name, struct region *ar) { struct region_device fmrd; |