[coreboot-gerrit] Patch set updated for coreboot: lib/fmap: provide RW region device support
Aaron Durbin (adurbin@chromium.org)
gerrit at coreboot.org
Sat Aug 13 00:49:07 CEST 2016
Aaron Durbin (adurbin at chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/16203
-gerrit
commit 901ecc8370c6dbfc1f3330c24f3e9583ea612275
Author: Aaron Durbin <adurbin at chromium.org>
Date: Fri Aug 12 12:42:04 2016 -0500
lib/fmap: provide RW region device support
Explicitly provide a RW view of an FMAP region. This is required
for platforms which have separeate implemenations of a RO boot
device and a RW boot device.
BUG=chrome-os-partner:56151
Change-Id: Ibafa3dc534f53a3d90487f3190c0f8a2e82858c2
Signed-off-by: Aaron Durbin <adurbin at chromium.org>
---
src/include/fmap.h | 4 ++++
src/lib/fmap.c | 10 ++++++++++
2 files changed, 14 insertions(+)
diff --git a/src/include/fmap.h b/src/include/fmap.h
index 684a05c..5834831 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 bf99037..9602134 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;
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